MO
Michael Ossipoff
Thu, Apr 11, 2024 11:33 PM
It’s probably a good principle for collective projects that procedural
issues should be kept to a minimum.
When such an issue is felt necessary, then it should be promptly raised.
Most can be resolved by consensus-discussion, because there’s usually an
alternative that everyone can accept.
When not, then, as a last resort, someone can call for a vote.
My inclination is to make as few issues as possible, with the actual doing
of the project as the priority.
So let’s now express our preference-ordering among the nominees.
On Thu, Apr 11, 2024 at 15:15 Michael Ossipoff email9648742@gmail.com
wrote:
Yes, I too wrote some explanation with the ballot that I posted about 10
hours ago.
I posted my ballot about 1 minute after the start of the voting-period.
I told why I equal-ranked at least half of the alternatives.
I told why I added an approval-set.
On Thu, Apr 11, 2024 at 14:53 Richard, the VoteFair guy <
electionmethods@votefair.org> wrote:
I suggest creating a list of links to the associated Wikipedia or
Electowiki articles, one for each method. One person supplying all the
links will save time for the rest of us. Personally I'm going to need
to read about some of these methods.
As I rank them I'm adding a brief note to each method -- [in brackets]
-- to help me keep track of the reasons for my ranking sequence, and to
reveal to others my reasons for my ranking. I might share my non-final
ranking to give others an opportunity to change my mind.
Richard Fobes
On 4/11/2024 2:45 AM, Kristofer Munsterhjelm wrote:
The final list is, in random order:
Smith//Score
Approval with manual runoff
Smith//Approval (explicit - specified approval cutoff)
Schwartz-Woodall
Copeland//Borda (also called Ranked Robin)
MinMax(wv)
Double Defeat, Hare
Plurality
Majority Judgement (as a category; includes usual judgement etc.)
IRV
Max Strength Transitive Beatpath
STAR
Woodall
Schulze
Baldwin
Black
Approval
Benham
Margins-Sorted Minimum Losing Votes (equal-rated whole)
Gross Loser Elimination
Smith//DAC
RCIPE
RP(wv)
Smith//Approval (implicit - of all ranked)
Margins-Sorted Approval
In addition, the shorthand category
"Condorcet-IRV"
corresponds to including (or equal-ranking) all of Benham, Woodall, and
Schwartz-Woodall.
It’s probably a good principle for collective projects that procedural
issues should be kept to a minimum.
When such an issue is felt necessary, then it should be promptly raised.
Most can be resolved by consensus-discussion, because there’s usually an
alternative that everyone can accept.
When not, then, as a last resort, someone can call for a vote.
My inclination is to make as few issues as possible, with the actual doing
of the project as the priority.
So let’s now express our preference-ordering among the nominees.
On Thu, Apr 11, 2024 at 15:15 Michael Ossipoff <email9648742@gmail.com>
wrote:
> Yes, I too wrote some explanation with the ballot that I posted about 10
> hours ago.
>
> I posted my ballot about 1 minute after the start of the voting-period.
>
> I told why I equal-ranked at least half of the alternatives.
>
> I told why I added an approval-set.
>
> On Thu, Apr 11, 2024 at 14:53 Richard, the VoteFair guy <
> electionmethods@votefair.org> wrote:
>
>> I suggest creating a list of links to the associated Wikipedia or
>> Electowiki articles, one for each method. One person supplying all the
>> links will save time for the rest of us. Personally I'm going to need
>> to read about some of these methods.
>>
>> As I rank them I'm adding a brief note to each method -- [in brackets]
>> -- to help me keep track of the reasons for my ranking sequence, and to
>> reveal to others my reasons for my ranking. I might share my non-final
>> ranking to give others an opportunity to change my mind.
>>
>> Richard Fobes
>>
>>
>> On 4/11/2024 2:45 AM, Kristofer Munsterhjelm wrote:
>> >
>> > The final list is, in random order:
>> >
>> > Smith//Score
>> > Approval with manual runoff
>> > Smith//Approval (explicit - specified approval cutoff)
>> > Schwartz-Woodall
>> > Copeland//Borda (also called Ranked Robin)
>> > MinMax(wv)
>> > Double Defeat, Hare
>> > Plurality
>> > Majority Judgement (as a category; includes usual judgement etc.)
>> > IRV
>> > Max Strength Transitive Beatpath
>> > STAR
>> > Woodall
>> > Schulze
>> > Baldwin
>> > Black
>> > Approval
>> > Benham
>> > Margins-Sorted Minimum Losing Votes (equal-rated whole)
>> > Gross Loser Elimination
>> > Smith//DAC
>> > RCIPE
>> > RP(wv)
>> > Smith//Approval (implicit - of all ranked)
>> > Margins-Sorted Approval
>> >
>> > In addition, the shorthand category
>> > "Condorcet-IRV"
>> > corresponds to including (or equal-ranking) all of Benham, Woodall, and
>> > Schwartz-Woodall.
>> ----
>> Election-Methods mailing list - see https://electorama.com/em for list
>> info
>>
>
MO
Michael Ossipoff
Thu, Apr 11, 2024 11:56 PM
Sorry, just one more thing that I’d like to add:
I said that when there’s some procedural issue with no alternative
acceptable to everyone, then someone calling for a vote could be the last
resort.
But of course the problem with that is that choosing a way to vote isn’t
this group’s strong suit.
So, if no alternative is acceptable to everyone, then wouldn’t it be a lot
simpler, easier & quicker to just go with the alternative that’s acceptable
to the most?
…& sorry, but I can’t resist saying, does that sound familiar?
On Thu, Apr 11, 2024 at 16:33 Michael Ossipoff email9648742@gmail.com
wrote:
It’s probably a good principle for collective projects that procedural
issues should be kept to a minimum.
When such an issue is felt necessary, then it should be promptly raised.
Most can be resolved by consensus-discussion, because there’s usually an
alternative that everyone can accept.
When not, then, as a last resort, someone can call for a vote.
My inclination is to make as few issues as possible, with the actual doing
of the project as the priority.
So let’s now express our preference-ordering among the nominees.
On Thu, Apr 11, 2024 at 15:15 Michael Ossipoff email9648742@gmail.com
wrote:
Yes, I too wrote some explanation with the ballot that I posted about 10
hours ago.
I posted my ballot about 1 minute after the start of the voting-period.
I told why I equal-ranked at least half of the alternatives.
I told why I added an approval-set.
On Thu, Apr 11, 2024 at 14:53 Richard, the VoteFair guy <
electionmethods@votefair.org> wrote:
I suggest creating a list of links to the associated Wikipedia or
Electowiki articles, one for each method. One person supplying all the
links will save time for the rest of us. Personally I'm going to need
to read about some of these methods.
As I rank them I'm adding a brief note to each method -- [in brackets]
-- to help me keep track of the reasons for my ranking sequence, and to
reveal to others my reasons for my ranking. I might share my non-final
ranking to give others an opportunity to change my mind.
Richard Fobes
On 4/11/2024 2:45 AM, Kristofer Munsterhjelm wrote:
The final list is, in random order:
Smith//Score
Approval with manual runoff
Smith//Approval (explicit - specified approval cutoff)
Schwartz-Woodall
Copeland//Borda (also called Ranked Robin)
MinMax(wv)
Double Defeat, Hare
Plurality
Majority Judgement (as a category; includes usual judgement etc.)
IRV
Max Strength Transitive Beatpath
STAR
Woodall
Schulze
Baldwin
Black
Approval
Benham
Margins-Sorted Minimum Losing Votes (equal-rated whole)
Gross Loser Elimination
Smith//DAC
RCIPE
RP(wv)
Smith//Approval (implicit - of all ranked)
Margins-Sorted Approval
In addition, the shorthand category
"Condorcet-IRV"
corresponds to including (or equal-ranking) all of Benham, Woodall,
Sorry, just one more thing that I’d like to add:
I said that when there’s some procedural issue with no alternative
acceptable to everyone, then someone calling for a vote could be the last
resort.
But of course the problem with that is that choosing a way to vote isn’t
this group’s strong suit.
So, if no alternative is acceptable to everyone, then wouldn’t it be a lot
simpler, easier & quicker to just go with the alternative that’s acceptable
to the most?
…& sorry, but I can’t resist saying, does that sound familiar?
On Thu, Apr 11, 2024 at 16:33 Michael Ossipoff <email9648742@gmail.com>
wrote:
> It’s probably a good principle for collective projects that procedural
> issues should be kept to a minimum.
>
> When such an issue is felt necessary, then it should be promptly raised.
> Most can be resolved by consensus-discussion, because there’s usually an
> alternative that everyone can accept.
>
> When not, then, as a last resort, someone can call for a vote.
>
> My inclination is to make as few issues as possible, with the actual doing
> of the project as the priority.
>
> So let’s now express our preference-ordering among the nominees.
>
> On Thu, Apr 11, 2024 at 15:15 Michael Ossipoff <email9648742@gmail.com>
> wrote:
>
>> Yes, I too wrote some explanation with the ballot that I posted about 10
>> hours ago.
>>
>> I posted my ballot about 1 minute after the start of the voting-period.
>>
>> I told why I equal-ranked at least half of the alternatives.
>>
>> I told why I added an approval-set.
>>
>> On Thu, Apr 11, 2024 at 14:53 Richard, the VoteFair guy <
>> electionmethods@votefair.org> wrote:
>>
>>> I suggest creating a list of links to the associated Wikipedia or
>>> Electowiki articles, one for each method. One person supplying all the
>>> links will save time for the rest of us. Personally I'm going to need
>>> to read about some of these methods.
>>>
>>> As I rank them I'm adding a brief note to each method -- [in brackets]
>>> -- to help me keep track of the reasons for my ranking sequence, and to
>>> reveal to others my reasons for my ranking. I might share my non-final
>>> ranking to give others an opportunity to change my mind.
>>>
>>> Richard Fobes
>>>
>>>
>>> On 4/11/2024 2:45 AM, Kristofer Munsterhjelm wrote:
>>> >
>>> > The final list is, in random order:
>>> >
>>> > Smith//Score
>>> > Approval with manual runoff
>>> > Smith//Approval (explicit - specified approval cutoff)
>>> > Schwartz-Woodall
>>> > Copeland//Borda (also called Ranked Robin)
>>> > MinMax(wv)
>>> > Double Defeat, Hare
>>> > Plurality
>>> > Majority Judgement (as a category; includes usual judgement etc.)
>>> > IRV
>>> > Max Strength Transitive Beatpath
>>> > STAR
>>> > Woodall
>>> > Schulze
>>> > Baldwin
>>> > Black
>>> > Approval
>>> > Benham
>>> > Margins-Sorted Minimum Losing Votes (equal-rated whole)
>>> > Gross Loser Elimination
>>> > Smith//DAC
>>> > RCIPE
>>> > RP(wv)
>>> > Smith//Approval (implicit - of all ranked)
>>> > Margins-Sorted Approval
>>> >
>>> > In addition, the shorthand category
>>> > "Condorcet-IRV"
>>> > corresponds to including (or equal-ranking) all of Benham, Woodall,
>>> and
>>> > Schwartz-Woodall.
>>> ----
>>> Election-Methods mailing list - see https://electorama.com/em for list
>>> info
>>>
>>
KM
Kristofer Munsterhjelm
Fri, Apr 12, 2024 4:19 PM
On 2024-04-11 23:52, Richard, the VoteFair guy wrote:
I suggest creating a list of links to the associated Wikipedia or
Electowiki articles, one for each method. One person supplying all the
links will save time for the rest of us. Personally I'm going to need
to read about some of these methods.
Good idea. Here are some links and brief descriptions. I've tried to be
neutral; I may post later with my thoughts about the methods, and what
notable criteria they pass and fail that I know of.
I've only done the methods that have a wiki page. At the bottom is a
list of those methods that don't. Their proposers have already described
them, but they might need a more clear description; in any case, I'll
leave that to them :-)
Smith//Score:
This is a composite method. https://electowiki.org/wiki/Composite_methods
It takes rated ballots.
It first eliminates every candidate not in the Smith set, and then does
Range voting (Score voting) on the remaining candidates. No
normalization is done after the elimination, so a vote A: 10, B: 7, C: 0
still gives B 7 points and C 0 even if A isn't in the Smith set.
In Daniel Carrera's words: "The ballot would look like a Score ballot.
To process the ballots, the scores are converted into rankings (equal
rankings allowed), and the highest scoring candidate inside the Smith
set is elected." See also Toby's last post.
Approval with manual runoff:
First do a round of Approval voting. Determine the top two candidates,
then hold a later second round to determine who of the two wins. This is
like STAR, but spacing the rounds apart makes it possible to hold
debates, discuss the differences between the finalists, and so on. On
the other hand, it's more expensive.
Smith//Approval (explicit - specified approval cutoff):
This is a composite method. It takes a ranked ballot with an approval
cutoff marked.
Every voter approves of (gives a point to) every candidate ranked above
his approval cutoff. The Smith set member with the most points wins.
Smith//Approval (implicit):
Like Smith//Approval, except the voter can't specify an approval
cutoff. Instead, every candidate ranked is counted as approved, and
every candidate not ranked as not approved. The intent is to deter burial.
Woodall:
https://electowiki.org/wiki/Woodall%27s_method
This method takes ranked ballots. First make a note of the initial
Smith set. Then keep doing IRV until only one candidate of the initial
Smith set remains. Elect that candidate. Note: This is not Benham - the
initial Smith set never changes.
Schwartz-Woodall:
The same as Woodall, but with the Schwartz set. The Schwartz set is
slightly less prone to ties.
Copeland//Borda:
https://electowiki.org/wiki/Ranked_Robin
This method takes ranked ballots.
First eliminate every candidate not in the Copeland set. Then calculate
the Borda scores of the remaining candidates and elect its winner. This
can be done by using the Condorcet matrix alone.
Minmax(wv):
https://electowiki.org/wiki/Minimax_Condorcet_method
This method takes ranked ballots.
Based on the ballots, consider each one-on-one matchups between
candidates. Elect the candidate who has the most comfortable lead
against the candidate who does best against him, one on one.
Plurality:
You know this one. Choose-one ballots, equal rank not allowed, most
first preferences wins.
Majority Judgement (category):
https://en.wikipedia.org/wiki/Majority_judgment
Various tiebreakers exist, e.g.
https://en.wikipedia.org/wiki/Highest_median_voting_rules#Tiebreaking_procedures
This takes graded ballots. The candidates give each candidate a grade,
usually one of Excellent, Very Good, Good, Acceptable, Poor, or Reject.
For each candidate, calculate the highest grade so that a majority gives
that candidate at least that grade. The candidate with the highest such
majority grade wins.
The method is often indecisive, which means a tiebreaker has to be
used. There are many, but they all try to preserve the dynamics of MJ.
IRV:
https://en.wikipedia.org/wiki/Instant-runoff_voting
This should also be familiar to everybody here. It takes ranked
ballots. Repeatedly eliminate the Plurality loser until a candidate
obtains a majority of the non-exhausted first preferences.
STAR:
https://en.wikipedia.org/wiki/STAR_voting
This takes rated ballots. The ballot typically has six ratings (zero to
five inclusive), but the method could work with any number. The method
counts the total number of points for each candidate. The pairwise
winner of the two candidates with the most points wins.
Schulze:
https://electowiki.org/wiki/Schulze_method
This takes ranked ballots. The method is complex but basically amounts
to a cloneproof Smith generalization of Minmax.
Let a beatpath from a candidate A to another candidate Z be a series of
pairwise defeats A beats B beats C beats... beats Y beats Z. The
strength of the path is measured by the strength of its weakest
individual pairwise contest. Let "the" beatpath from A to Z be the
beatpath of strongest strength.
The Schulze winner is the candidate whose beatpath to anybody else is
at least as strong as their beatpath back to him.
Baldwin:
https://electowiki.org/wiki/Baldwin%27s_method
This takes ranked ballots.
Baldwin is the Borda analog of IRV. In each round, the candidate with
the lowest Borda count is eliminated. The last man standing wins. Also
called Total Vote Runoff by Foley and Maskin.
Black:
https://electowiki.org/wiki/Black%27s_method
This takes ranked ballots.
If there is a Condorcet winner, elect that CW. Otherwise elect the
Borda winner.
Approval:
https://electowiki.org/wiki/Approval_voting
This takes an Approval ballot: vote for one or more. The candidate with
the most marks wins.
Benham:
https://electowiki.org/wiki/Benham%27s_method
This method takes ranked ballots. Repeatedly eliminate the Plurality
loser until there's a Condorcet winner among the remaining candidates.
Elect the Condorcet winner when that happens.
Smith//DAC:
This is a composite method. https://electowiki.org/wiki/Composite_methods
https://electowiki.org/wiki/Descending_Acquiescing_Coalitions
It takes ranked ballots.
First eliminate every candidate not in the Smith set. Then perform the
DAC algorithm to determine the winner.
The DAC algorithm is complex, with the result being a cloneproof method
otherwise close to Plurality.
Essentially, the DAC algorithm works like this: For each ballot, for
each set of candidates a voter acquiesces to, increase that set's count
by one. Then sort the sets in order of count, descending. Starting at
the top with the current viable set being every candidate, eliminate
from the viable set every candidate who is not in the set at the list's
current position, unless that would eliminate everybody. The candidate/s
remaining once you've traversed the whole list is/are the winner/s.
A voter acquiesces to a set if he doesn't rank any candidate outside
the set strictly above a candidate within the set.
RCIPE:
https://electowiki.org/wiki/Ranked_Choice_Including_Pairwise_Elimination
This takes ranked ballots.
Modify IRV to, instead of eliminating the Plurality loser, eliminate
the current Condorcet loser among the remaining (uneliminated)
candidates. Only eliminate the Plurality loser if there is no Plurality
loser. Once a candidate has a majority of the non-exhausted first
preference votes, elect that candidate.
RP(wv):
https://electowiki.org/wiki/Ranked_Pairs
This takes ranked ballots.
First count the pairwise matrix. Create a sorted list of every pairwise
victory, sorted by its strength. Break ties by random ballot.
Proceed from the top down the list, locking in a pairwise relation
unless it would create a cycle.
At the end, the locked-in contests give an order of candidates. This is
the election order: the candidate on top is the winner.
Strictly speaking, the tiebreaking is by random voter hierarchy, but
I've skipped the details about how that is constructed.
I think that should be correct, but if I forgot something or described
them incorrectly, let me know.
The methods not described are:
Margins-Sorted Approval
Double Defeat, Hare
Margins-Sorted Minimum Losing Votes (equal-rated whole)
Gross Loser Elimination
Max Strength Transitive Beatpath
-km
On 2024-04-11 23:52, Richard, the VoteFair guy wrote:
> I suggest creating a list of links to the associated Wikipedia or
> Electowiki articles, one for each method. One person supplying all the
> links will save time for the rest of us. Personally I'm going to need
> to read about some of these methods.
Good idea. Here are some links and brief descriptions. I've tried to be
neutral; I may post later with my thoughts about the methods, and what
notable criteria they pass and fail that I know of.
I've only done the methods that have a wiki page. At the bottom is a
list of those methods that don't. Their proposers have already described
them, but they might need a more clear description; in any case, I'll
leave that to them :-)
Smith//Score:
This is a composite method. https://electowiki.org/wiki/Composite_methods
It takes rated ballots.
It first eliminates every candidate not in the Smith set, and then does
Range voting (Score voting) on the remaining candidates. No
normalization is done after the elimination, so a vote A: 10, B: 7, C: 0
still gives B 7 points and C 0 even if A isn't in the Smith set.
In Daniel Carrera's words: "The ballot would look like a Score ballot.
To process the ballots, the scores are converted into rankings (equal
rankings allowed), and the highest scoring candidate inside the Smith
set is elected." See also Toby's last post.
Approval with manual runoff:
First do a round of Approval voting. Determine the top two candidates,
then hold a later second round to determine who of the two wins. This is
like STAR, but spacing the rounds apart makes it possible to hold
debates, discuss the differences between the finalists, and so on. On
the other hand, it's more expensive.
Smith//Approval (explicit - specified approval cutoff):
This is a composite method. It takes a ranked ballot with an approval
cutoff marked.
Every voter approves of (gives a point to) every candidate ranked above
his approval cutoff. The Smith set member with the most points wins.
Smith//Approval (implicit):
Like Smith//Approval, except the voter can't specify an approval
cutoff. Instead, every candidate ranked is counted as approved, and
every candidate not ranked as not approved. The intent is to deter burial.
Woodall:
https://electowiki.org/wiki/Woodall%27s_method
This method takes ranked ballots. First make a note of the initial
Smith set. Then keep doing IRV until only one candidate of the initial
Smith set remains. Elect that candidate. Note: This is not Benham - the
initial Smith set never changes.
Schwartz-Woodall:
The same as Woodall, but with the Schwartz set. The Schwartz set is
slightly less prone to ties.
Copeland//Borda:
https://electowiki.org/wiki/Ranked_Robin
This method takes ranked ballots.
First eliminate every candidate not in the Copeland set. Then calculate
the Borda scores of the remaining candidates and elect its winner. This
can be done by using the Condorcet matrix alone.
Minmax(wv):
https://electowiki.org/wiki/Minimax_Condorcet_method
This method takes ranked ballots.
Based on the ballots, consider each one-on-one matchups between
candidates. Elect the candidate who has the most comfortable lead
against the candidate who does best against him, one on one.
Plurality:
You know this one. Choose-one ballots, equal rank not allowed, most
first preferences wins.
Majority Judgement (category):
https://en.wikipedia.org/wiki/Majority_judgment
Various tiebreakers exist, e.g.
https://en.wikipedia.org/wiki/Highest_median_voting_rules#Tiebreaking_procedures
This takes graded ballots. The candidates give each candidate a grade,
usually one of Excellent, Very Good, Good, Acceptable, Poor, or Reject.
For each candidate, calculate the highest grade so that a majority gives
that candidate at least that grade. The candidate with the highest such
majority grade wins.
The method is often indecisive, which means a tiebreaker has to be
used. There are many, but they all try to preserve the dynamics of MJ.
IRV:
https://en.wikipedia.org/wiki/Instant-runoff_voting
This should also be familiar to everybody here. It takes ranked
ballots. Repeatedly eliminate the Plurality loser until a candidate
obtains a majority of the non-exhausted first preferences.
STAR:
https://en.wikipedia.org/wiki/STAR_voting
This takes rated ballots. The ballot typically has six ratings (zero to
five inclusive), but the method could work with any number. The method
counts the total number of points for each candidate. The pairwise
winner of the two candidates with the most points wins.
Schulze:
https://electowiki.org/wiki/Schulze_method
This takes ranked ballots. The method is complex but basically amounts
to a cloneproof Smith generalization of Minmax.
Let a beatpath from a candidate A to another candidate Z be a series of
pairwise defeats A beats B beats C beats... beats Y beats Z. The
strength of the path is measured by the strength of its weakest
individual pairwise contest. Let "the" beatpath from A to Z be the
beatpath of strongest strength.
The Schulze winner is the candidate whose beatpath to anybody else is
at least as strong as their beatpath back to him.
Baldwin:
https://electowiki.org/wiki/Baldwin%27s_method
This takes ranked ballots.
Baldwin is the Borda analog of IRV. In each round, the candidate with
the lowest Borda count is eliminated. The last man standing wins. Also
called Total Vote Runoff by Foley and Maskin.
Black:
https://electowiki.org/wiki/Black%27s_method
This takes ranked ballots.
If there is a Condorcet winner, elect that CW. Otherwise elect the
Borda winner.
Approval:
https://electowiki.org/wiki/Approval_voting
This takes an Approval ballot: vote for one or more. The candidate with
the most marks wins.
Benham:
https://electowiki.org/wiki/Benham%27s_method
This method takes ranked ballots. Repeatedly eliminate the Plurality
loser until there's a Condorcet winner among the remaining candidates.
Elect the Condorcet winner when that happens.
Smith//DAC:
This is a composite method. https://electowiki.org/wiki/Composite_methods
https://electowiki.org/wiki/Descending_Acquiescing_Coalitions
It takes ranked ballots.
First eliminate every candidate not in the Smith set. Then perform the
DAC algorithm to determine the winner.
The DAC algorithm is complex, with the result being a cloneproof method
otherwise close to Plurality.
Essentially, the DAC algorithm works like this: For each ballot, for
each set of candidates a voter acquiesces to, increase that set's count
by one. Then sort the sets in order of count, descending. Starting at
the top with the current viable set being every candidate, eliminate
from the viable set every candidate who is not in the set at the list's
current position, unless that would eliminate everybody. The candidate/s
remaining once you've traversed the whole list is/are the winner/s.
A voter acquiesces to a set if he doesn't rank any candidate outside
the set strictly above a candidate within the set.
RCIPE:
https://electowiki.org/wiki/Ranked_Choice_Including_Pairwise_Elimination
This takes ranked ballots.
Modify IRV to, instead of eliminating the Plurality loser, eliminate
the current Condorcet loser among the remaining (uneliminated)
candidates. Only eliminate the Plurality loser if there is no Plurality
loser. Once a candidate has a majority of the non-exhausted first
preference votes, elect that candidate.
RP(wv):
https://electowiki.org/wiki/Ranked_Pairs
This takes ranked ballots.
First count the pairwise matrix. Create a sorted list of every pairwise
victory, sorted by its strength. Break ties by random ballot.
Proceed from the top down the list, locking in a pairwise relation
unless it would create a cycle.
At the end, the locked-in contests give an order of candidates. This is
the election order: the candidate on top is the winner.
Strictly speaking, the tiebreaking is by random voter hierarchy, but
I've skipped the details about how that is constructed.
I think that should be correct, but if I forgot something or described
them incorrectly, let me know.
The methods not described are:
Margins-Sorted Approval
Double Defeat, Hare
Margins-Sorted Minimum Losing Votes (equal-rated whole)
Gross Loser Elimination
Max Strength Transitive Beatpath
-km
CL
Closed Limelike Curves
Fri, Apr 12, 2024 5:38 PM
This seems like far more methods than anyone could rank, and all of them
are starting to blend together for me. I think we're just splitting Hares
at this point.
On Fri, Apr 12, 2024 at 9:20 AM Kristofer Munsterhjelm km_elmet@t-online.de
wrote:
On 2024-04-11 23:52, Richard, the VoteFair guy wrote:
I suggest creating a list of links to the associated Wikipedia or
Electowiki articles, one for each method. One person supplying all the
links will save time for the rest of us. Personally I'm going to need
to read about some of these methods.
Good idea. Here are some links and brief descriptions. I've tried to be
neutral; I may post later with my thoughts about the methods, and what
notable criteria they pass and fail that I know of.
I've only done the methods that have a wiki page. At the bottom is a
list of those methods that don't. Their proposers have already described
them, but they might need a more clear description; in any case, I'll
leave that to them :-)
Smith//Score:
This is a composite method.
https://electowiki.org/wiki/Composite_methods
It takes rated ballots.
It first eliminates every candidate not in the Smith set, and then
does
Range voting (Score voting) on the remaining candidates. No
normalization is done after the elimination, so a vote A: 10, B: 7, C: 0
still gives B 7 points and C 0 even if A isn't in the Smith set.
In Daniel Carrera's words: "The ballot would look like a Score
ballot.
To process the ballots, the scores are converted into rankings (equal
rankings allowed), and the highest scoring candidate inside the Smith
set is elected." See also Toby's last post.
Approval with manual runoff:
First do a round of Approval voting. Determine the top two
candidates,
then hold a later second round to determine who of the two wins. This is
like STAR, but spacing the rounds apart makes it possible to hold
debates, discuss the differences between the finalists, and so on. On
the other hand, it's more expensive.
Smith//Approval (explicit - specified approval cutoff):
This is a composite method. It takes a ranked ballot with an
approval
cutoff marked.
Every voter approves of (gives a point to) every candidate ranked
above
his approval cutoff. The Smith set member with the most points wins.
Smith//Approval (implicit):
Like Smith//Approval, except the voter can't specify an approval
cutoff. Instead, every candidate ranked is counted as approved, and
every candidate not ranked as not approved. The intent is to deter burial.
Woodall:
https://electowiki.org/wiki/Woodall%27s_method
This method takes ranked ballots. First make a note of the initial
Smith set. Then keep doing IRV until only one candidate of the initial
Smith set remains. Elect that candidate. Note: This is not Benham - the
initial Smith set never changes.
Schwartz-Woodall:
The same as Woodall, but with the Schwartz set. The Schwartz set
is
slightly less prone to ties.
Copeland//Borda:
https://electowiki.org/wiki/Ranked_Robin
This method takes ranked ballots.
First eliminate every candidate not in the Copeland set. Then
calculate
the Borda scores of the remaining candidates and elect its winner. This
can be done by using the Condorcet matrix alone.
Minmax(wv):
https://electowiki.org/wiki/Minimax_Condorcet_method
This method takes ranked ballots.
Based on the ballots, consider each one-on-one matchups between
candidates. Elect the candidate who has the most comfortable lead
against the candidate who does best against him, one on one.
Plurality:
You know this one. Choose-one ballots, equal rank not allowed,
most
first preferences wins.
Majority Judgement (category):
https://en.wikipedia.org/wiki/Majority_judgment
Various tiebreakers exist, e.g.
https://en.wikipedia.org/wiki/Highest_median_voting_rules#Tiebreaking_procedures
This takes graded ballots. The candidates give each candidate a
grade,
usually one of Excellent, Very Good, Good, Acceptable, Poor, or Reject.
For each candidate, calculate the highest grade so that a majority gives
that candidate at least that grade. The candidate with the highest such
majority grade wins.
The method is often indecisive, which means a tiebreaker has to be
used. There are many, but they all try to preserve the dynamics of MJ.
IRV:
https://en.wikipedia.org/wiki/Instant-runoff_voting
This should also be familiar to everybody here. It takes ranked
ballots. Repeatedly eliminate the Plurality loser until a candidate
obtains a majority of the non-exhausted first preferences.
STAR:
https://en.wikipedia.org/wiki/STAR_voting
This takes rated ballots. The ballot typically has six ratings
(zero to
five inclusive), but the method could work with any number. The method
counts the total number of points for each candidate. The pairwise
winner of the two candidates with the most points wins.
Schulze:
https://electowiki.org/wiki/Schulze_method
This takes ranked ballots. The method is complex but basically
amounts
to a cloneproof Smith generalization of Minmax.
Let a beatpath from a candidate A to another candidate Z be a
series of
pairwise defeats A beats B beats C beats... beats Y beats Z. The
strength of the path is measured by the strength of its weakest
individual pairwise contest. Let "the" beatpath from A to Z be the
beatpath of strongest strength.
The Schulze winner is the candidate whose beatpath to anybody else
is
at least as strong as their beatpath back to him.
Baldwin:
https://electowiki.org/wiki/Baldwin%27s_method
This takes ranked ballots.
Baldwin is the Borda analog of IRV. In each round, the candidate
with
the lowest Borda count is eliminated. The last man standing wins. Also
called Total Vote Runoff by Foley and Maskin.
Black:
https://electowiki.org/wiki/Black%27s_method
This takes ranked ballots.
If there is a Condorcet winner, elect that CW. Otherwise elect the
Borda winner.
Approval:
https://electowiki.org/wiki/Approval_voting
This takes an Approval ballot: vote for one or more. The candidate
with
the most marks wins.
Benham:
https://electowiki.org/wiki/Benham%27s_method
This method takes ranked ballots. Repeatedly eliminate the
Plurality
loser until there's a Condorcet winner among the remaining candidates.
Elect the Condorcet winner when that happens.
Smith//DAC:
This is a composite method.
https://electowiki.org/wiki/Composite_methods
https://electowiki.org/wiki/Descending_Acquiescing_Coalitions
It takes ranked ballots.
First eliminate every candidate not in the Smith set. Then perform
the
DAC algorithm to determine the winner.
The DAC algorithm is complex, with the result being a cloneproof
method
otherwise close to Plurality.
Essentially, the DAC algorithm works like this: For each ballot,
for
each set of candidates a voter acquiesces to, increase that set's count
by one. Then sort the sets in order of count, descending. Starting at
the top with the current viable set being every candidate, eliminate
from the viable set every candidate who is not in the set at the list's
current position, unless that would eliminate everybody. The candidate/s
remaining once you've traversed the whole list is/are the winner/s.
A voter acquiesces to a set if he doesn't rank any candidate
outside
the set strictly above a candidate within the set.
RCIPE:
https://electowiki.org/wiki/Ranked_Choice_Including_Pairwise_Elimination
This takes ranked ballots.
Modify IRV to, instead of eliminating the Plurality loser,
eliminate
the current Condorcet loser among the remaining (uneliminated)
candidates. Only eliminate the Plurality loser if there is no Plurality
loser. Once a candidate has a majority of the non-exhausted first
preference votes, elect that candidate.
RP(wv):
https://electowiki.org/wiki/Ranked_Pairs
This takes ranked ballots.
First count the pairwise matrix. Create a sorted list of every
pairwise
victory, sorted by its strength. Break ties by random ballot.
Proceed from the top down the list, locking in a pairwise relation
unless it would create a cycle.
At the end, the locked-in contests give an order of candidates.
This is
the election order: the candidate on top is the winner.
Strictly speaking, the tiebreaking is by random voter hierarchy,
but
I've skipped the details about how that is constructed.
I think that should be correct, but if I forgot something or described
them incorrectly, let me know.
The methods not described are:
Margins-Sorted Approval
Double Defeat, Hare
Margins-Sorted Minimum Losing Votes (equal-rated whole)
Gross Loser Elimination
Max Strength Transitive Beatpath
-km
Election-Methods mailing list - see https://electorama.com/em for list
info
This seems like far more methods than anyone could rank, and all of them
are starting to blend together for me. I think we're just splitting Hares
at this point.
On Fri, Apr 12, 2024 at 9:20 AM Kristofer Munsterhjelm <km_elmet@t-online.de>
wrote:
> On 2024-04-11 23:52, Richard, the VoteFair guy wrote:
> > I suggest creating a list of links to the associated Wikipedia or
> > Electowiki articles, one for each method. One person supplying all the
> > links will save time for the rest of us. Personally I'm going to need
> > to read about some of these methods.
>
> Good idea. Here are some links and brief descriptions. I've tried to be
> neutral; I may post later with my thoughts about the methods, and what
> notable criteria they pass and fail that I know of.
>
> I've only done the methods that have a wiki page. At the bottom is a
> list of those methods that don't. Their proposers have already described
> them, but they might need a more clear description; in any case, I'll
> leave that to them :-)
>
> Smith//Score:
> This is a composite method.
> https://electowiki.org/wiki/Composite_methods
> It takes rated ballots.
> It first eliminates every candidate not in the Smith set, and then
> does
> Range voting (Score voting) on the remaining candidates. No
> normalization is done after the elimination, so a vote A: 10, B: 7, C: 0
> still gives B 7 points and C 0 even if A isn't in the Smith set.
> In Daniel Carrera's words: "The ballot would look like a Score
> ballot.
> To process the ballots, the scores are converted into rankings (equal
> rankings allowed), and the highest scoring candidate inside the Smith
> set is elected." See also Toby's last post.
>
> Approval with manual runoff:
> First do a round of Approval voting. Determine the top two
> candidates,
> then hold a later second round to determine who of the two wins. This is
> like STAR, but spacing the rounds apart makes it possible to hold
> debates, discuss the differences between the finalists, and so on. On
> the other hand, it's more expensive.
>
> Smith//Approval (explicit - specified approval cutoff):
> This is a composite method. It takes a ranked ballot with an
> approval
> cutoff marked.
> Every voter approves of (gives a point to) every candidate ranked
> above
> his approval cutoff. The Smith set member with the most points wins.
>
> Smith//Approval (implicit):
> Like Smith//Approval, except the voter can't specify an approval
> cutoff. Instead, every candidate ranked is counted as approved, and
> every candidate not ranked as not approved. The intent is to deter burial.
>
> Woodall:
> https://electowiki.org/wiki/Woodall%27s_method
> This method takes ranked ballots. First make a note of the initial
> Smith set. Then keep doing IRV until only one candidate of the initial
> Smith set remains. Elect that candidate. Note: This is not Benham - the
> initial Smith set never changes.
>
> Schwartz-Woodall:
> The same as Woodall, but with the Schwartz set. The Schwartz set
> is
> slightly less prone to ties.
>
> Copeland//Borda:
> https://electowiki.org/wiki/Ranked_Robin
> This method takes ranked ballots.
> First eliminate every candidate not in the Copeland set. Then
> calculate
> the Borda scores of the remaining candidates and elect its winner. This
> can be done by using the Condorcet matrix alone.
>
> Minmax(wv):
> https://electowiki.org/wiki/Minimax_Condorcet_method
> This method takes ranked ballots.
> Based on the ballots, consider each one-on-one matchups between
> candidates. Elect the candidate who has the most comfortable lead
> against the candidate who does best against him, one on one.
>
> Plurality:
> You know this one. Choose-one ballots, equal rank not allowed,
> most
> first preferences wins.
>
> Majority Judgement (category):
> https://en.wikipedia.org/wiki/Majority_judgment
> Various tiebreakers exist, e.g.
>
>
> https://en.wikipedia.org/wiki/Highest_median_voting_rules#Tiebreaking_procedures
>
> This takes graded ballots. The candidates give each candidate a
> grade,
> usually one of Excellent, Very Good, Good, Acceptable, Poor, or Reject.
> For each candidate, calculate the highest grade so that a majority gives
> that candidate at least that grade. The candidate with the highest such
> majority grade wins.
> The method is often indecisive, which means a tiebreaker has to be
> used. There are many, but they all try to preserve the dynamics of MJ.
>
> IRV:
> https://en.wikipedia.org/wiki/Instant-runoff_voting
> This should also be familiar to everybody here. It takes ranked
> ballots. Repeatedly eliminate the Plurality loser until a candidate
> obtains a majority of the non-exhausted first preferences.
>
> STAR:
> https://en.wikipedia.org/wiki/STAR_voting
> This takes rated ballots. The ballot typically has six ratings
> (zero to
> five inclusive), but the method could work with any number. The method
> counts the total number of points for each candidate. The pairwise
> winner of the two candidates with the most points wins.
>
> Schulze:
> https://electowiki.org/wiki/Schulze_method
> This takes ranked ballots. The method is complex but basically
> amounts
> to a cloneproof Smith generalization of Minmax.
> Let a beatpath from a candidate A to another candidate Z be a
> series of
> pairwise defeats A beats B beats C beats... beats Y beats Z. The
> strength of the path is measured by the strength of its weakest
> individual pairwise contest. Let "the" beatpath from A to Z be the
> beatpath of strongest strength.
> The Schulze winner is the candidate whose beatpath to anybody else
> is
> at least as strong as their beatpath back to him.
>
> Baldwin:
> https://electowiki.org/wiki/Baldwin%27s_method
> This takes ranked ballots.
> Baldwin is the Borda analog of IRV. In each round, the candidate
> with
> the lowest Borda count is eliminated. The last man standing wins. Also
> called Total Vote Runoff by Foley and Maskin.
>
> Black:
> https://electowiki.org/wiki/Black%27s_method
> This takes ranked ballots.
> If there is a Condorcet winner, elect that CW. Otherwise elect the
> Borda winner.
>
> Approval:
> https://electowiki.org/wiki/Approval_voting
> This takes an Approval ballot: vote for one or more. The candidate
> with
> the most marks wins.
>
> Benham:
> https://electowiki.org/wiki/Benham%27s_method
> This method takes ranked ballots. Repeatedly eliminate the
> Plurality
> loser until there's a Condorcet winner among the remaining candidates.
> Elect the Condorcet winner when that happens.
>
> Smith//DAC:
> This is a composite method.
> https://electowiki.org/wiki/Composite_methods
> https://electowiki.org/wiki/Descending_Acquiescing_Coalitions
> It takes ranked ballots.
> First eliminate every candidate not in the Smith set. Then perform
> the
> DAC algorithm to determine the winner.
> The DAC algorithm is complex, with the result being a cloneproof
> method
> otherwise close to Plurality.
> Essentially, the DAC algorithm works like this: For each ballot,
> for
> each set of candidates a voter acquiesces to, increase that set's count
> by one. Then sort the sets in order of count, descending. Starting at
> the top with the current viable set being every candidate, eliminate
> from the viable set every candidate who is not in the set at the list's
> current position, unless that would eliminate everybody. The candidate/s
> remaining once you've traversed the whole list is/are the winner/s.
> A voter acquiesces to a set if he doesn't rank any candidate
> outside
> the set strictly above a candidate within the set.
>
> RCIPE:
>
> https://electowiki.org/wiki/Ranked_Choice_Including_Pairwise_Elimination
> This takes ranked ballots.
> Modify IRV to, instead of eliminating the Plurality loser,
> eliminate
> the current Condorcet loser among the remaining (uneliminated)
> candidates. Only eliminate the Plurality loser if there is no Plurality
> loser. Once a candidate has a majority of the non-exhausted first
> preference votes, elect that candidate.
>
> RP(wv):
> https://electowiki.org/wiki/Ranked_Pairs
> This takes ranked ballots.
> First count the pairwise matrix. Create a sorted list of every
> pairwise
> victory, sorted by its strength. Break ties by random ballot.
> Proceed from the top down the list, locking in a pairwise relation
> unless it would create a cycle.
> At the end, the locked-in contests give an order of candidates.
> This is
> the election order: the candidate on top is the winner.
> Strictly speaking, the tiebreaking is by random voter hierarchy,
> but
> I've skipped the details about how that is constructed.
>
> I think that should be correct, but if I forgot something or described
> them incorrectly, let me know.
>
> The methods not described are:
> Margins-Sorted Approval
> Double Defeat, Hare
> Margins-Sorted Minimum Losing Votes (equal-rated whole)
> Gross Loser Elimination
> Max Strength Transitive Beatpath
>
> -km
> ----
> Election-Methods mailing list - see https://electorama.com/em for list
> info
>
MG
Michael Garman
Fri, Apr 12, 2024 5:40 PM
Agreed. If the purpose of this is to inform the public, we’ve also lost the
plot — how many of these methods have a chance of being widely understood,
let alone implemented, anywhere outside this bubble?
On Fri, Apr 12, 2024 at 7:38 PM Closed Limelike Curves <
closed.limelike.curves@gmail.com> wrote:
This seems like far more methods than anyone could rank, and all of them
are starting to blend together for me. I think we're just splitting Hares
at this point.
On Fri, Apr 12, 2024 at 9:20 AM Kristofer Munsterhjelm <
km_elmet@t-online.de> wrote:
On 2024-04-11 23:52, Richard, the VoteFair guy wrote:
I suggest creating a list of links to the associated Wikipedia or
Electowiki articles, one for each method. One person supplying all the
links will save time for the rest of us. Personally I'm going to need
to read about some of these methods.
Good idea. Here are some links and brief descriptions. I've tried to be
neutral; I may post later with my thoughts about the methods, and what
notable criteria they pass and fail that I know of.
I've only done the methods that have a wiki page. At the bottom is a
list of those methods that don't. Their proposers have already described
them, but they might need a more clear description; in any case, I'll
leave that to them :-)
Smith//Score:
This is a composite method.
https://electowiki.org/wiki/Composite_methods
It takes rated ballots.
It first eliminates every candidate not in the Smith set, and
then does
Range voting (Score voting) on the remaining candidates. No
normalization is done after the elimination, so a vote A: 10, B: 7, C: 0
still gives B 7 points and C 0 even if A isn't in the Smith set.
In Daniel Carrera's words: "The ballot would look like a Score
ballot.
To process the ballots, the scores are converted into rankings (equal
rankings allowed), and the highest scoring candidate inside the Smith
set is elected." See also Toby's last post.
Approval with manual runoff:
First do a round of Approval voting. Determine the top two
candidates,
then hold a later second round to determine who of the two wins. This is
like STAR, but spacing the rounds apart makes it possible to hold
debates, discuss the differences between the finalists, and so on. On
the other hand, it's more expensive.
Smith//Approval (explicit - specified approval cutoff):
This is a composite method. It takes a ranked ballot with an
approval
cutoff marked.
Every voter approves of (gives a point to) every candidate ranked
above
his approval cutoff. The Smith set member with the most points wins.
Smith//Approval (implicit):
Like Smith//Approval, except the voter can't specify an approval
cutoff. Instead, every candidate ranked is counted as approved, and
every candidate not ranked as not approved. The intent is to deter burial.
Woodall:
https://electowiki.org/wiki/Woodall%27s_method
This method takes ranked ballots. First make a note of the
initial
Smith set. Then keep doing IRV until only one candidate of the initial
Smith set remains. Elect that candidate. Note: This is not Benham - the
initial Smith set never changes.
Schwartz-Woodall:
The same as Woodall, but with the Schwartz set. The Schwartz set
is
slightly less prone to ties.
Copeland//Borda:
https://electowiki.org/wiki/Ranked_Robin
This method takes ranked ballots.
First eliminate every candidate not in the Copeland set. Then
calculate
the Borda scores of the remaining candidates and elect its winner. This
can be done by using the Condorcet matrix alone.
Minmax(wv):
https://electowiki.org/wiki/Minimax_Condorcet_method
This method takes ranked ballots.
Based on the ballots, consider each one-on-one matchups between
candidates. Elect the candidate who has the most comfortable lead
against the candidate who does best against him, one on one.
Plurality:
You know this one. Choose-one ballots, equal rank not allowed,
most
first preferences wins.
Majority Judgement (category):
https://en.wikipedia.org/wiki/Majority_judgment
Various tiebreakers exist, e.g.
https://en.wikipedia.org/wiki/Highest_median_voting_rules#Tiebreaking_procedures
This takes graded ballots. The candidates give each candidate a
grade,
usually one of Excellent, Very Good, Good, Acceptable, Poor, or Reject.
For each candidate, calculate the highest grade so that a majority gives
that candidate at least that grade. The candidate with the highest such
majority grade wins.
The method is often indecisive, which means a tiebreaker has to
be
used. There are many, but they all try to preserve the dynamics of MJ.
IRV:
https://en.wikipedia.org/wiki/Instant-runoff_voting
This should also be familiar to everybody here. It takes ranked
ballots. Repeatedly eliminate the Plurality loser until a candidate
obtains a majority of the non-exhausted first preferences.
STAR:
https://en.wikipedia.org/wiki/STAR_voting
This takes rated ballots. The ballot typically has six ratings
(zero to
five inclusive), but the method could work with any number. The method
counts the total number of points for each candidate. The pairwise
winner of the two candidates with the most points wins.
Schulze:
https://electowiki.org/wiki/Schulze_method
This takes ranked ballots. The method is complex but basically
amounts
to a cloneproof Smith generalization of Minmax.
Let a beatpath from a candidate A to another candidate Z be a
series of
pairwise defeats A beats B beats C beats... beats Y beats Z. The
strength of the path is measured by the strength of its weakest
individual pairwise contest. Let "the" beatpath from A to Z be the
beatpath of strongest strength.
The Schulze winner is the candidate whose beatpath to anybody
else is
at least as strong as their beatpath back to him.
Baldwin:
https://electowiki.org/wiki/Baldwin%27s_method
This takes ranked ballots.
Baldwin is the Borda analog of IRV. In each round, the candidate
with
the lowest Borda count is eliminated. The last man standing wins. Also
called Total Vote Runoff by Foley and Maskin.
Black:
https://electowiki.org/wiki/Black%27s_method
This takes ranked ballots.
If there is a Condorcet winner, elect that CW. Otherwise elect
the
Borda winner.
Approval:
https://electowiki.org/wiki/Approval_voting
This takes an Approval ballot: vote for one or more. The
candidate with
the most marks wins.
Benham:
https://electowiki.org/wiki/Benham%27s_method
This method takes ranked ballots. Repeatedly eliminate the
Plurality
loser until there's a Condorcet winner among the remaining candidates.
Elect the Condorcet winner when that happens.
Smith//DAC:
This is a composite method.
https://electowiki.org/wiki/Composite_methods
https://electowiki.org/wiki/Descending_Acquiescing_Coalitions
It takes ranked ballots.
First eliminate every candidate not in the Smith set. Then
perform the
DAC algorithm to determine the winner.
The DAC algorithm is complex, with the result being a cloneproof
method
otherwise close to Plurality.
Essentially, the DAC algorithm works like this: For each ballot,
for
each set of candidates a voter acquiesces to, increase that set's count
by one. Then sort the sets in order of count, descending. Starting at
the top with the current viable set being every candidate, eliminate
from the viable set every candidate who is not in the set at the list's
current position, unless that would eliminate everybody. The candidate/s
remaining once you've traversed the whole list is/are the winner/s.
A voter acquiesces to a set if he doesn't rank any candidate
outside
the set strictly above a candidate within the set.
RCIPE:
https://electowiki.org/wiki/Ranked_Choice_Including_Pairwise_Elimination
This takes ranked ballots.
Modify IRV to, instead of eliminating the Plurality loser,
eliminate
the current Condorcet loser among the remaining (uneliminated)
candidates. Only eliminate the Plurality loser if there is no Plurality
loser. Once a candidate has a majority of the non-exhausted first
preference votes, elect that candidate.
RP(wv):
https://electowiki.org/wiki/Ranked_Pairs
This takes ranked ballots.
First count the pairwise matrix. Create a sorted list of every
pairwise
victory, sorted by its strength. Break ties by random ballot.
Proceed from the top down the list, locking in a pairwise
relation
unless it would create a cycle.
At the end, the locked-in contests give an order of candidates.
This is
the election order: the candidate on top is the winner.
Strictly speaking, the tiebreaking is by random voter hierarchy,
but
I've skipped the details about how that is constructed.
I think that should be correct, but if I forgot something or described
them incorrectly, let me know.
The methods not described are:
Margins-Sorted Approval
Double Defeat, Hare
Margins-Sorted Minimum Losing Votes (equal-rated whole)
Gross Loser Elimination
Max Strength Transitive Beatpath
-km
Election-Methods mailing list - see https://electorama.com/em for list
info
Agreed. If the purpose of this is to inform the public, we’ve also lost the
plot — how many of these methods have a chance of being widely understood,
let alone implemented, anywhere outside this bubble?
On Fri, Apr 12, 2024 at 7:38 PM Closed Limelike Curves <
closed.limelike.curves@gmail.com> wrote:
> This seems like far more methods than anyone could rank, and all of them
> are starting to blend together for me. I think we're just splitting Hares
> at this point.
>
> On Fri, Apr 12, 2024 at 9:20 AM Kristofer Munsterhjelm <
> km_elmet@t-online.de> wrote:
>
>> On 2024-04-11 23:52, Richard, the VoteFair guy wrote:
>> > I suggest creating a list of links to the associated Wikipedia or
>> > Electowiki articles, one for each method. One person supplying all the
>> > links will save time for the rest of us. Personally I'm going to need
>> > to read about some of these methods.
>>
>> Good idea. Here are some links and brief descriptions. I've tried to be
>> neutral; I may post later with my thoughts about the methods, and what
>> notable criteria they pass and fail that I know of.
>>
>> I've only done the methods that have a wiki page. At the bottom is a
>> list of those methods that don't. Their proposers have already described
>> them, but they might need a more clear description; in any case, I'll
>> leave that to them :-)
>>
>> Smith//Score:
>> This is a composite method.
>> https://electowiki.org/wiki/Composite_methods
>> It takes rated ballots.
>> It first eliminates every candidate not in the Smith set, and
>> then does
>> Range voting (Score voting) on the remaining candidates. No
>> normalization is done after the elimination, so a vote A: 10, B: 7, C: 0
>> still gives B 7 points and C 0 even if A isn't in the Smith set.
>> In Daniel Carrera's words: "The ballot would look like a Score
>> ballot.
>> To process the ballots, the scores are converted into rankings (equal
>> rankings allowed), and the highest scoring candidate inside the Smith
>> set is elected." See also Toby's last post.
>>
>> Approval with manual runoff:
>> First do a round of Approval voting. Determine the top two
>> candidates,
>> then hold a later second round to determine who of the two wins. This is
>> like STAR, but spacing the rounds apart makes it possible to hold
>> debates, discuss the differences between the finalists, and so on. On
>> the other hand, it's more expensive.
>>
>> Smith//Approval (explicit - specified approval cutoff):
>> This is a composite method. It takes a ranked ballot with an
>> approval
>> cutoff marked.
>> Every voter approves of (gives a point to) every candidate ranked
>> above
>> his approval cutoff. The Smith set member with the most points wins.
>>
>> Smith//Approval (implicit):
>> Like Smith//Approval, except the voter can't specify an approval
>> cutoff. Instead, every candidate ranked is counted as approved, and
>> every candidate not ranked as not approved. The intent is to deter burial.
>>
>> Woodall:
>> https://electowiki.org/wiki/Woodall%27s_method
>> This method takes ranked ballots. First make a note of the
>> initial
>> Smith set. Then keep doing IRV until only one candidate of the initial
>> Smith set remains. Elect that candidate. Note: This is not Benham - the
>> initial Smith set never changes.
>>
>> Schwartz-Woodall:
>> The same as Woodall, but with the Schwartz set. The Schwartz set
>> is
>> slightly less prone to ties.
>>
>> Copeland//Borda:
>> https://electowiki.org/wiki/Ranked_Robin
>> This method takes ranked ballots.
>> First eliminate every candidate not in the Copeland set. Then
>> calculate
>> the Borda scores of the remaining candidates and elect its winner. This
>> can be done by using the Condorcet matrix alone.
>>
>> Minmax(wv):
>> https://electowiki.org/wiki/Minimax_Condorcet_method
>> This method takes ranked ballots.
>> Based on the ballots, consider each one-on-one matchups between
>> candidates. Elect the candidate who has the most comfortable lead
>> against the candidate who does best against him, one on one.
>>
>> Plurality:
>> You know this one. Choose-one ballots, equal rank not allowed,
>> most
>> first preferences wins.
>>
>> Majority Judgement (category):
>> https://en.wikipedia.org/wiki/Majority_judgment
>> Various tiebreakers exist, e.g.
>>
>>
>> https://en.wikipedia.org/wiki/Highest_median_voting_rules#Tiebreaking_procedures
>>
>> This takes graded ballots. The candidates give each candidate a
>> grade,
>> usually one of Excellent, Very Good, Good, Acceptable, Poor, or Reject.
>> For each candidate, calculate the highest grade so that a majority gives
>> that candidate at least that grade. The candidate with the highest such
>> majority grade wins.
>> The method is often indecisive, which means a tiebreaker has to
>> be
>> used. There are many, but they all try to preserve the dynamics of MJ.
>>
>> IRV:
>> https://en.wikipedia.org/wiki/Instant-runoff_voting
>> This should also be familiar to everybody here. It takes ranked
>> ballots. Repeatedly eliminate the Plurality loser until a candidate
>> obtains a majority of the non-exhausted first preferences.
>>
>> STAR:
>> https://en.wikipedia.org/wiki/STAR_voting
>> This takes rated ballots. The ballot typically has six ratings
>> (zero to
>> five inclusive), but the method could work with any number. The method
>> counts the total number of points for each candidate. The pairwise
>> winner of the two candidates with the most points wins.
>>
>> Schulze:
>> https://electowiki.org/wiki/Schulze_method
>> This takes ranked ballots. The method is complex but basically
>> amounts
>> to a cloneproof Smith generalization of Minmax.
>> Let a beatpath from a candidate A to another candidate Z be a
>> series of
>> pairwise defeats A beats B beats C beats... beats Y beats Z. The
>> strength of the path is measured by the strength of its weakest
>> individual pairwise contest. Let "the" beatpath from A to Z be the
>> beatpath of strongest strength.
>> The Schulze winner is the candidate whose beatpath to anybody
>> else is
>> at least as strong as their beatpath back to him.
>>
>> Baldwin:
>> https://electowiki.org/wiki/Baldwin%27s_method
>> This takes ranked ballots.
>> Baldwin is the Borda analog of IRV. In each round, the candidate
>> with
>> the lowest Borda count is eliminated. The last man standing wins. Also
>> called Total Vote Runoff by Foley and Maskin.
>>
>> Black:
>> https://electowiki.org/wiki/Black%27s_method
>> This takes ranked ballots.
>> If there is a Condorcet winner, elect that CW. Otherwise elect
>> the
>> Borda winner.
>>
>> Approval:
>> https://electowiki.org/wiki/Approval_voting
>> This takes an Approval ballot: vote for one or more. The
>> candidate with
>> the most marks wins.
>>
>> Benham:
>> https://electowiki.org/wiki/Benham%27s_method
>> This method takes ranked ballots. Repeatedly eliminate the
>> Plurality
>> loser until there's a Condorcet winner among the remaining candidates.
>> Elect the Condorcet winner when that happens.
>>
>> Smith//DAC:
>> This is a composite method.
>> https://electowiki.org/wiki/Composite_methods
>> https://electowiki.org/wiki/Descending_Acquiescing_Coalitions
>> It takes ranked ballots.
>> First eliminate every candidate not in the Smith set. Then
>> perform the
>> DAC algorithm to determine the winner.
>> The DAC algorithm is complex, with the result being a cloneproof
>> method
>> otherwise close to Plurality.
>> Essentially, the DAC algorithm works like this: For each ballot,
>> for
>> each set of candidates a voter acquiesces to, increase that set's count
>> by one. Then sort the sets in order of count, descending. Starting at
>> the top with the current viable set being every candidate, eliminate
>> from the viable set every candidate who is not in the set at the list's
>> current position, unless that would eliminate everybody. The candidate/s
>> remaining once you've traversed the whole list is/are the winner/s.
>> A voter acquiesces to a set if he doesn't rank any candidate
>> outside
>> the set strictly above a candidate within the set.
>>
>> RCIPE:
>>
>> https://electowiki.org/wiki/Ranked_Choice_Including_Pairwise_Elimination
>> This takes ranked ballots.
>> Modify IRV to, instead of eliminating the Plurality loser,
>> eliminate
>> the current Condorcet loser among the remaining (uneliminated)
>> candidates. Only eliminate the Plurality loser if there is no Plurality
>> loser. Once a candidate has a majority of the non-exhausted first
>> preference votes, elect that candidate.
>>
>> RP(wv):
>> https://electowiki.org/wiki/Ranked_Pairs
>> This takes ranked ballots.
>> First count the pairwise matrix. Create a sorted list of every
>> pairwise
>> victory, sorted by its strength. Break ties by random ballot.
>> Proceed from the top down the list, locking in a pairwise
>> relation
>> unless it would create a cycle.
>> At the end, the locked-in contests give an order of candidates.
>> This is
>> the election order: the candidate on top is the winner.
>> Strictly speaking, the tiebreaking is by random voter hierarchy,
>> but
>> I've skipped the details about how that is constructed.
>>
>> I think that should be correct, but if I forgot something or described
>> them incorrectly, let me know.
>>
>> The methods not described are:
>> Margins-Sorted Approval
>> Double Defeat, Hare
>> Margins-Sorted Minimum Losing Votes (equal-rated whole)
>> Gross Loser Elimination
>> Max Strength Transitive Beatpath
>>
>> -km
>> ----
>> Election-Methods mailing list - see https://electorama.com/em for list
>> info
>>
> ----
> Election-Methods mailing list - see https://electorama.com/em for list
> info
>
RT
Richard, the VoteFair guy
Fri, Apr 12, 2024 6:38 PM
Kristofer's description (further below) of RCIPE -- Ranked Choice
Including Pairwise Elimination -- is a bit flawed. "Plurality" is not
involved. And correctly counting so-called "overvotes" is an important
component of RCIPE.
Here's a correct description:
RCIPE:
This takes ranked ballots.
Modify IRV to eliminate "pairwise losing candidates" when they occur. A
pairwise losing candidate is a candidate who would lose every one-on-one
contest against every remaining candidate. (The mistakes in Burlington
and Alaska would not have occurred.)
Elect the candidate who gets majority support after the eliminations.
Also, correctly count two or more candidates who are ranked at the same
choice level. Specifically, for example, pair up two ballots that rank
A and B at the same currently-highest choice level. One of the paired
ballots is counted as support for A, the other is counted as support for B.
Bravo to Kristofer for writing these descriptions and links!!
Richard Fobes
The VoteFair guy
On 4/12/2024 9:19 AM, Kristofer Munsterhjelm wrote:
On 2024-04-11 23:52, Richard, the VoteFair guy wrote:
I suggest creating a list of links to the associated Wikipedia or
Electowiki articles, one for each method. One person supplying all
the links will save time for the rest of us. Personally I'm going to
need to read about some of these methods.
Good idea. Here are some links and brief descriptions. I've tried to be
neutral; I may post later with my thoughts about the methods, and what
notable criteria they pass and fail that I know of.
I've only done the methods that have a wiki page. At the bottom is a
list of those methods that don't. Their proposers have already described
them, but they might need a more clear description; in any case, I'll
leave that to them :-)
Smith//Score:
This is a composite method.
https://electowiki.org/wiki/Composite_methods
It takes rated ballots.
It first eliminates every candidate not in the Smith set, and then
does Range voting (Score voting) on the remaining candidates. No
normalization is done after the elimination, so a vote A: 10, B: 7, C: 0
still gives B 7 points and C 0 even if A isn't in the Smith set.
In Daniel Carrera's words: "The ballot would look like a Score
ballot. To process the ballots, the scores are converted into rankings
(equal rankings allowed), and the highest scoring candidate inside the
Smith set is elected." See also Toby's last post.
Approval with manual runoff:
First do a round of Approval voting. Determine the top two
candidates, then hold a later second round to determine who of the two
wins. This is like STAR, but spacing the rounds apart makes it possible
to hold debates, discuss the differences between the finalists, and so
on. On the other hand, it's more expensive.
Smith//Approval (explicit - specified approval cutoff):
This is a composite method. It takes a ranked ballot with an
approval cutoff marked.
Every voter approves of (gives a point to) every candidate ranked
above his approval cutoff. The Smith set member with the most points wins.
Smith//Approval (implicit):
Like Smith//Approval, except the voter can't specify an approval
cutoff. Instead, every candidate ranked is counted as approved, and
every candidate not ranked as not approved. The intent is to deter burial.
Woodall:
https://electowiki.org/wiki/Woodall%27s_method
This method takes ranked ballots. First make a note of the initial
Smith set. Then keep doing IRV until only one candidate of the initial
Smith set remains. Elect that candidate. Note: This is not Benham - the
initial Smith set never changes.
Schwartz-Woodall:
The same as Woodall, but with the Schwartz set. The Schwartz set is
slightly less prone to ties.
Copeland//Borda:
https://electowiki.org/wiki/Ranked_Robin
This method takes ranked ballots.
First eliminate every candidate not in the Copeland set. Then
calculate the Borda scores of the remaining candidates and elect its
winner. This can be done by using the Condorcet matrix alone.
Minmax(wv):
https://electowiki.org/wiki/Minimax_Condorcet_method
This method takes ranked ballots.
Based on the ballots, consider each one-on-one matchups between
candidates. Elect the candidate who has the most comfortable lead
against the candidate who does best against him, one on one.
Plurality:
You know this one. Choose-one ballots, equal rank not allowed, most
first preferences wins.
Majority Judgement (category):
https://en.wikipedia.org/wiki/Majority_judgment
Various tiebreakers exist, e.g.
https://en.wikipedia.org/wiki/Highest_median_voting_rules#Tiebreaking_procedures
This takes graded ballots. The candidates give each candidate a
grade, usually one of Excellent, Very Good, Good, Acceptable, Poor, or
Reject. For each candidate, calculate the highest grade so that a
majority gives that candidate at least that grade. The candidate with
the highest such majority grade wins.
The method is often indecisive, which means a tiebreaker has to be
used. There are many, but they all try to preserve the dynamics of MJ.
IRV:
https://en.wikipedia.org/wiki/Instant-runoff_voting
This should also be familiar to everybody here. It takes ranked
ballots. Repeatedly eliminate the Plurality loser until a candidate
obtains a majority of the non-exhausted first preferences.
STAR:
https://en.wikipedia.org/wiki/STAR_voting
This takes rated ballots. The ballot typically has six ratings
(zero to five inclusive), but the method could work with any number. The
method counts the total number of points for each candidate. The
pairwise winner of the two candidates with the most points wins.
Schulze:
https://electowiki.org/wiki/Schulze_method
This takes ranked ballots. The method is complex but basically
amounts to a cloneproof Smith generalization of Minmax.
Let a beatpath from a candidate A to another candidate Z be a
series of pairwise defeats A beats B beats C beats... beats Y beats Z.
The strength of the path is measured by the strength of its weakest
individual pairwise contest. Let "the" beatpath from A to Z be the
beatpath of strongest strength.
The Schulze winner is the candidate whose beatpath to anybody else
is at least as strong as their beatpath back to him.
Baldwin:
https://electowiki.org/wiki/Baldwin%27s_method
This takes ranked ballots.
Baldwin is the Borda analog of IRV. In each round, the candidate
with the lowest Borda count is eliminated. The last man standing wins.
Also called Total Vote Runoff by Foley and Maskin.
Black:
https://electowiki.org/wiki/Black%27s_method
This takes ranked ballots.
If there is a Condorcet winner, elect that CW. Otherwise elect the
Borda winner.
Approval:
https://electowiki.org/wiki/Approval_voting
This takes an Approval ballot: vote for one or more. The candidate
with the most marks wins.
Benham:
https://electowiki.org/wiki/Benham%27s_method
This method takes ranked ballots. Repeatedly eliminate the
Plurality loser until there's a Condorcet winner among the remaining
candidates. Elect the Condorcet winner when that happens.
Smith//DAC:
This is a composite method.
https://electowiki.org/wiki/Composite_methods
https://electowiki.org/wiki/Descending_Acquiescing_Coalitions
It takes ranked ballots.
First eliminate every candidate not in the Smith set. Then perform
the DAC algorithm to determine the winner.
The DAC algorithm is complex, with the result being a cloneproof
method otherwise close to Plurality.
Essentially, the DAC algorithm works like this: For each ballot,
for each set of candidates a voter acquiesces to, increase that set's
count by one. Then sort the sets in order of count, descending. Starting
at the top with the current viable set being every candidate, eliminate
from the viable set every candidate who is not in the set at the list's
current position, unless that would eliminate everybody. The candidate/s
remaining once you've traversed the whole list is/are the winner/s.
A voter acquiesces to a set if he doesn't rank any candidate
outside the set strictly above a candidate within the set.
RCIPE:
https://electowiki.org/wiki/Ranked_Choice_Including_Pairwise_Elimination
This takes ranked ballots.
Modify IRV to, instead of eliminating the Plurality loser,
eliminate the current Condorcet loser among the remaining (uneliminated)
candidates. Only eliminate the Plurality loser if there is no Plurality
loser. Once a candidate has a majority of the non-exhausted first
preference votes, elect that candidate.
RP(wv):
https://electowiki.org/wiki/Ranked_Pairs
This takes ranked ballots.
First count the pairwise matrix. Create a sorted list of every
pairwise victory, sorted by its strength. Break ties by random ballot.
Proceed from the top down the list, locking in a pairwise relation
unless it would create a cycle.
At the end, the locked-in contests give an order of candidates.
This is the election order: the candidate on top is the winner.
Strictly speaking, the tiebreaking is by random voter hierarchy,
but I've skipped the details about how that is constructed.
I think that should be correct, but if I forgot something or described
them incorrectly, let me know.
The methods not described are:
Margins-Sorted Approval
Double Defeat, Hare
Margins-Sorted Minimum Losing Votes (equal-rated whole)
Gross Loser Elimination
Max Strength Transitive Beatpath
-km
Kristofer's description (further below) of RCIPE -- Ranked Choice
Including Pairwise Elimination -- is a bit flawed. "Plurality" is not
involved. And correctly counting so-called "overvotes" is an important
component of RCIPE.
Here's a correct description:
RCIPE:
This takes ranked ballots.
Modify IRV to eliminate "pairwise losing candidates" when they occur. A
pairwise losing candidate is a candidate who would lose every one-on-one
contest against every remaining candidate. (The mistakes in Burlington
and Alaska would not have occurred.)
Elect the candidate who gets majority support after the eliminations.
Also, correctly count two or more candidates who are ranked at the same
choice level. Specifically, for example, pair up two ballots that rank
A and B at the same currently-highest choice level. One of the paired
ballots is counted as support for A, the other is counted as support for B.
Bravo to Kristofer for writing these descriptions and links!!
Richard Fobes
The VoteFair guy
On 4/12/2024 9:19 AM, Kristofer Munsterhjelm wrote:
> On 2024-04-11 23:52, Richard, the VoteFair guy wrote:
>> I suggest creating a list of links to the associated Wikipedia or
>> Electowiki articles, one for each method. One person supplying all
>> the links will save time for the rest of us. Personally I'm going to
>> need to read about some of these methods.
>
> Good idea. Here are some links and brief descriptions. I've tried to be
> neutral; I may post later with my thoughts about the methods, and what
> notable criteria they pass and fail that I know of.
>
> I've only done the methods that have a wiki page. At the bottom is a
> list of those methods that don't. Their proposers have already described
> them, but they might need a more clear description; in any case, I'll
> leave that to them :-)
>
> Smith//Score:
> This is a composite method.
> https://electowiki.org/wiki/Composite_methods
> It takes rated ballots.
> It first eliminates every candidate not in the Smith set, and then
> does Range voting (Score voting) on the remaining candidates. No
> normalization is done after the elimination, so a vote A: 10, B: 7, C: 0
> still gives B 7 points and C 0 even if A isn't in the Smith set.
> In Daniel Carrera's words: "The ballot would look like a Score
> ballot. To process the ballots, the scores are converted into rankings
> (equal rankings allowed), and the highest scoring candidate inside the
> Smith set is elected." See also Toby's last post.
>
> Approval with manual runoff:
> First do a round of Approval voting. Determine the top two
> candidates, then hold a later second round to determine who of the two
> wins. This is like STAR, but spacing the rounds apart makes it possible
> to hold debates, discuss the differences between the finalists, and so
> on. On the other hand, it's more expensive.
>
> Smith//Approval (explicit - specified approval cutoff):
> This is a composite method. It takes a ranked ballot with an
> approval cutoff marked.
> Every voter approves of (gives a point to) every candidate ranked
> above his approval cutoff. The Smith set member with the most points wins.
>
> Smith//Approval (implicit):
> Like Smith//Approval, except the voter can't specify an approval
> cutoff. Instead, every candidate ranked is counted as approved, and
> every candidate not ranked as not approved. The intent is to deter burial.
>
> Woodall:
> https://electowiki.org/wiki/Woodall%27s_method
> This method takes ranked ballots. First make a note of the initial
> Smith set. Then keep doing IRV until only one candidate of the initial
> Smith set remains. Elect that candidate. Note: This is not Benham - the
> initial Smith set never changes.
>
> Schwartz-Woodall:
> The same as Woodall, but with the Schwartz set. The Schwartz set is
> slightly less prone to ties.
>
> Copeland//Borda:
> https://electowiki.org/wiki/Ranked_Robin
> This method takes ranked ballots.
> First eliminate every candidate not in the Copeland set. Then
> calculate the Borda scores of the remaining candidates and elect its
> winner. This can be done by using the Condorcet matrix alone.
>
> Minmax(wv):
> https://electowiki.org/wiki/Minimax_Condorcet_method
> This method takes ranked ballots.
> Based on the ballots, consider each one-on-one matchups between
> candidates. Elect the candidate who has the most comfortable lead
> against the candidate who does best against him, one on one.
>
> Plurality:
> You know this one. Choose-one ballots, equal rank not allowed, most
> first preferences wins.
>
> Majority Judgement (category):
> https://en.wikipedia.org/wiki/Majority_judgment
> Various tiebreakers exist, e.g.
> https://en.wikipedia.org/wiki/Highest_median_voting_rules#Tiebreaking_procedures
>
> This takes graded ballots. The candidates give each candidate a
> grade, usually one of Excellent, Very Good, Good, Acceptable, Poor, or
> Reject. For each candidate, calculate the highest grade so that a
> majority gives that candidate at least that grade. The candidate with
> the highest such majority grade wins.
> The method is often indecisive, which means a tiebreaker has to be
> used. There are many, but they all try to preserve the dynamics of MJ.
>
> IRV:
> https://en.wikipedia.org/wiki/Instant-runoff_voting
> This should also be familiar to everybody here. It takes ranked
> ballots. Repeatedly eliminate the Plurality loser until a candidate
> obtains a majority of the non-exhausted first preferences.
>
> STAR:
> https://en.wikipedia.org/wiki/STAR_voting
> This takes rated ballots. The ballot typically has six ratings
> (zero to five inclusive), but the method could work with any number. The
> method counts the total number of points for each candidate. The
> pairwise winner of the two candidates with the most points wins.
>
> Schulze:
> https://electowiki.org/wiki/Schulze_method
> This takes ranked ballots. The method is complex but basically
> amounts to a cloneproof Smith generalization of Minmax.
> Let a beatpath from a candidate A to another candidate Z be a
> series of pairwise defeats A beats B beats C beats... beats Y beats Z.
> The strength of the path is measured by the strength of its weakest
> individual pairwise contest. Let "the" beatpath from A to Z be the
> beatpath of strongest strength.
> The Schulze winner is the candidate whose beatpath to anybody else
> is at least as strong as their beatpath back to him.
>
> Baldwin:
> https://electowiki.org/wiki/Baldwin%27s_method
> This takes ranked ballots.
> Baldwin is the Borda analog of IRV. In each round, the candidate
> with the lowest Borda count is eliminated. The last man standing wins.
> Also called Total Vote Runoff by Foley and Maskin.
>
> Black:
> https://electowiki.org/wiki/Black%27s_method
> This takes ranked ballots.
> If there is a Condorcet winner, elect that CW. Otherwise elect the
> Borda winner.
>
> Approval:
> https://electowiki.org/wiki/Approval_voting
> This takes an Approval ballot: vote for one or more. The candidate
> with the most marks wins.
>
> Benham:
> https://electowiki.org/wiki/Benham%27s_method
> This method takes ranked ballots. Repeatedly eliminate the
> Plurality loser until there's a Condorcet winner among the remaining
> candidates. Elect the Condorcet winner when that happens.
>
> Smith//DAC:
> This is a composite method.
> https://electowiki.org/wiki/Composite_methods
> https://electowiki.org/wiki/Descending_Acquiescing_Coalitions
> It takes ranked ballots.
> First eliminate every candidate not in the Smith set. Then perform
> the DAC algorithm to determine the winner.
> The DAC algorithm is complex, with the result being a cloneproof
> method otherwise close to Plurality.
> Essentially, the DAC algorithm works like this: For each ballot,
> for each set of candidates a voter acquiesces to, increase that set's
> count by one. Then sort the sets in order of count, descending. Starting
> at the top with the current viable set being every candidate, eliminate
> from the viable set every candidate who is not in the set at the list's
> current position, unless that would eliminate everybody. The candidate/s
> remaining once you've traversed the whole list is/are the winner/s.
> A voter acquiesces to a set if he doesn't rank any candidate
> outside the set strictly above a candidate within the set.
>
> RCIPE:
> https://electowiki.org/wiki/Ranked_Choice_Including_Pairwise_Elimination
> This takes ranked ballots.
> Modify IRV to, instead of eliminating the Plurality loser,
> eliminate the current Condorcet loser among the remaining (uneliminated)
> candidates. Only eliminate the Plurality loser if there is no Plurality
> loser. Once a candidate has a majority of the non-exhausted first
> preference votes, elect that candidate.
>
> RP(wv):
> https://electowiki.org/wiki/Ranked_Pairs
> This takes ranked ballots.
> First count the pairwise matrix. Create a sorted list of every
> pairwise victory, sorted by its strength. Break ties by random ballot.
> Proceed from the top down the list, locking in a pairwise relation
> unless it would create a cycle.
> At the end, the locked-in contests give an order of candidates.
> This is the election order: the candidate on top is the winner.
> Strictly speaking, the tiebreaking is by random voter hierarchy,
> but I've skipped the details about how that is constructed.
>
> I think that should be correct, but if I forgot something or described
> them incorrectly, let me know.
>
> The methods not described are:
> Margins-Sorted Approval
> Double Defeat, Hare
> Margins-Sorted Minimum Losing Votes (equal-rated whole)
> Gross Loser Elimination
> Max Strength Transitive Beatpath
>
> -km
MO
Michael Ossipoff
Fri, Apr 12, 2024 8:37 PM
Right!! That’s something I wanted to say. I’m removing Schulze from the
upper part of my ranking for that reason, & replacing it with
Smith//Approval(implicit).
How about we say to rank in order of overall merit for public
proposal…which includes proposability?
Then the unproposably complex methods could be left unranked or ranked near
bottom.
Or take it a step further & trim the candidate-set to only include
proposable methods? But might it be quicker to just let that be a voting
judgment, instead of having to do that evaluation as a separate preliminary
collective evaluation, which would delay the voting?
On Fri, Apr 12, 2024 at 10:41 Michael Garman michael.garman@rankthevote.us
wrote:
Agreed. If the purpose of this is to inform the public, we’ve also lost
the plot — how many of these methods have a chance of being widely
understood, let alone implemented, anywhere outside this bubble?
On Fri, Apr 12, 2024 at 7:38 PM Closed Limelike Curves <
closed.limelike.curves@gmail.com> wrote:
This seems like far more methods than anyone could rank, and all of them
are starting to blend together for me. I think we're just splitting Hares
at this point.
On Fri, Apr 12, 2024 at 9:20 AM Kristofer Munsterhjelm <
km_elmet@t-online.de> wrote:
On 2024-04-11 23:52, Richard, the VoteFair guy wrote:
I suggest creating a list of links to the associated Wikipedia or
Electowiki articles, one for each method. One person supplying all
links will save time for the rest of us. Personally I'm going to need
to read about some of these methods.
Good idea. Here are some links and brief descriptions. I've tried to be
neutral; I may post later with my thoughts about the methods, and what
notable criteria they pass and fail that I know of.
I've only done the methods that have a wiki page. At the bottom is a
list of those methods that don't. Their proposers have already described
them, but they might need a more clear description; in any case, I'll
leave that to them :-)
Smith//Score:
This is a composite method.
https://electowiki.org/wiki/Composite_methods
It takes rated ballots.
It first eliminates every candidate not in the Smith set, and
then does
Range voting (Score voting) on the remaining candidates. No
normalization is done after the elimination, so a vote A: 10, B: 7, C: 0
still gives B 7 points and C 0 even if A isn't in the Smith set.
In Daniel Carrera's words: "The ballot would look like a Score
ballot.
To process the ballots, the scores are converted into rankings (equal
rankings allowed), and the highest scoring candidate inside the Smith
set is elected." See also Toby's last post.
Approval with manual runoff:
First do a round of Approval voting. Determine the top two
candidates,
then hold a later second round to determine who of the two wins. This is
like STAR, but spacing the rounds apart makes it possible to hold
debates, discuss the differences between the finalists, and so on. On
the other hand, it's more expensive.
Smith//Approval (explicit - specified approval cutoff):
This is a composite method. It takes a ranked ballot with an
approval
cutoff marked.
Every voter approves of (gives a point to) every candidate
ranked above
his approval cutoff. The Smith set member with the most points wins.
Smith//Approval (implicit):
Like Smith//Approval, except the voter can't specify an approval
cutoff. Instead, every candidate ranked is counted as approved, and
every candidate not ranked as not approved. The intent is to deter
burial.
Woodall:
https://electowiki.org/wiki/Woodall%27s_method
This method takes ranked ballots. First make a note of the
initial
Smith set. Then keep doing IRV until only one candidate of the initial
Smith set remains. Elect that candidate. Note: This is not Benham - the
initial Smith set never changes.
Schwartz-Woodall:
The same as Woodall, but with the Schwartz set. The Schwartz set
is
slightly less prone to ties.
Copeland//Borda:
https://electowiki.org/wiki/Ranked_Robin
This method takes ranked ballots.
First eliminate every candidate not in the Copeland set. Then
calculate
the Borda scores of the remaining candidates and elect its winner. This
can be done by using the Condorcet matrix alone.
Minmax(wv):
https://electowiki.org/wiki/Minimax_Condorcet_method
This method takes ranked ballots.
Based on the ballots, consider each one-on-one matchups between
candidates. Elect the candidate who has the most comfortable lead
against the candidate who does best against him, one on one.
Plurality:
You know this one. Choose-one ballots, equal rank not allowed,
most
first preferences wins.
Majority Judgement (category):
https://en.wikipedia.org/wiki/Majority_judgment
Various tiebreakers exist, e.g.
https://en.wikipedia.org/wiki/Highest_median_voting_rules#Tiebreaking_procedures
This takes graded ballots. The candidates give each candidate a
grade,
usually one of Excellent, Very Good, Good, Acceptable, Poor, or Reject.
For each candidate, calculate the highest grade so that a majority gives
that candidate at least that grade. The candidate with the highest such
majority grade wins.
The method is often indecisive, which means a tiebreaker has to
be
used. There are many, but they all try to preserve the dynamics of MJ.
IRV:
https://en.wikipedia.org/wiki/Instant-runoff_voting
This should also be familiar to everybody here. It takes ranked
ballots. Repeatedly eliminate the Plurality loser until a candidate
obtains a majority of the non-exhausted first preferences.
STAR:
https://en.wikipedia.org/wiki/STAR_voting
This takes rated ballots. The ballot typically has six ratings
(zero to
five inclusive), but the method could work with any number. The method
counts the total number of points for each candidate. The pairwise
winner of the two candidates with the most points wins.
Schulze:
https://electowiki.org/wiki/Schulze_method
This takes ranked ballots. The method is complex but basically
amounts
to a cloneproof Smith generalization of Minmax.
Let a beatpath from a candidate A to another candidate Z be a
series of
pairwise defeats A beats B beats C beats... beats Y beats Z. The
strength of the path is measured by the strength of its weakest
individual pairwise contest. Let "the" beatpath from A to Z be the
beatpath of strongest strength.
The Schulze winner is the candidate whose beatpath to anybody
else is
at least as strong as their beatpath back to him.
Baldwin:
https://electowiki.org/wiki/Baldwin%27s_method
This takes ranked ballots.
Baldwin is the Borda analog of IRV. In each round, the candidate
with
the lowest Borda count is eliminated. The last man standing wins. Also
called Total Vote Runoff by Foley and Maskin.
Black:
https://electowiki.org/wiki/Black%27s_method
This takes ranked ballots.
If there is a Condorcet winner, elect that CW. Otherwise elect
the
Borda winner.
Approval:
https://electowiki.org/wiki/Approval_voting
This takes an Approval ballot: vote for one or more. The
candidate with
the most marks wins.
Benham:
https://electowiki.org/wiki/Benham%27s_method
This method takes ranked ballots. Repeatedly eliminate the
Plurality
loser until there's a Condorcet winner among the remaining candidates.
Elect the Condorcet winner when that happens.
Smith//DAC:
This is a composite method.
https://electowiki.org/wiki/Composite_methods
https://electowiki.org/wiki/Descending_Acquiescing_Coalitions
It takes ranked ballots.
First eliminate every candidate not in the Smith set. Then
perform the
DAC algorithm to determine the winner.
The DAC algorithm is complex, with the result being a cloneproof
method
otherwise close to Plurality.
Essentially, the DAC algorithm works like this: For each
ballot, for
each set of candidates a voter acquiesces to, increase that set's count
by one. Then sort the sets in order of count, descending. Starting at
the top with the current viable set being every candidate, eliminate
from the viable set every candidate who is not in the set at the list's
current position, unless that would eliminate everybody. The candidate/s
remaining once you've traversed the whole list is/are the winner/s.
A voter acquiesces to a set if he doesn't rank any candidate
outside
the set strictly above a candidate within the set.
RCIPE:
https://electowiki.org/wiki/Ranked_Choice_Including_Pairwise_Elimination
This takes ranked ballots.
Modify IRV to, instead of eliminating the Plurality loser,
eliminate
the current Condorcet loser among the remaining (uneliminated)
candidates. Only eliminate the Plurality loser if there is no Plurality
loser. Once a candidate has a majority of the non-exhausted first
preference votes, elect that candidate.
RP(wv):
https://electowiki.org/wiki/Ranked_Pairs
This takes ranked ballots.
First count the pairwise matrix. Create a sorted list of every
pairwise
victory, sorted by its strength. Break ties by random ballot.
Proceed from the top down the list, locking in a pairwise
relation
unless it would create a cycle.
At the end, the locked-in contests give an order of candidates.
This is
the election order: the candidate on top is the winner.
Strictly speaking, the tiebreaking is by random voter hierarchy,
but
I've skipped the details about how that is constructed.
I think that should be correct, but if I forgot something or described
them incorrectly, let me know.
The methods not described are:
Margins-Sorted Approval
Double Defeat, Hare
Margins-Sorted Minimum Losing Votes (equal-rated whole)
Gross Loser Elimination
Max Strength Transitive Beatpath
-km
Election-Methods mailing list - see https://electorama.com/em for list
info
Right!! That’s something I wanted to say. I’m removing Schulze from the
upper part of my ranking for that reason, & replacing it with
Smith//Approval(implicit).
How about we say to rank in order of overall merit for public
proposal…which includes proposability?
Then the unproposably complex methods could be left unranked or ranked near
bottom.
Or take it a step further & trim the candidate-set to only include
proposable methods? But might it be quicker to just let that be a voting
judgment, instead of having to do that evaluation as a separate preliminary
collective evaluation, which would delay the voting?
On Fri, Apr 12, 2024 at 10:41 Michael Garman <michael.garman@rankthevote.us>
wrote:
> Agreed. If the purpose of this is to inform the public, we’ve also lost
> the plot — how many of these methods have a chance of being widely
> understood, let alone implemented, anywhere outside this bubble?
>
> On Fri, Apr 12, 2024 at 7:38 PM Closed Limelike Curves <
> closed.limelike.curves@gmail.com> wrote:
>
>> This seems like far more methods than anyone could rank, and all of them
>> are starting to blend together for me. I think we're just splitting Hares
>> at this point.
>>
>> On Fri, Apr 12, 2024 at 9:20 AM Kristofer Munsterhjelm <
>> km_elmet@t-online.de> wrote:
>>
>>> On 2024-04-11 23:52, Richard, the VoteFair guy wrote:
>>> > I suggest creating a list of links to the associated Wikipedia or
>>> > Electowiki articles, one for each method. One person supplying all
>>> the
>>> > links will save time for the rest of us. Personally I'm going to need
>>> > to read about some of these methods.
>>>
>>> Good idea. Here are some links and brief descriptions. I've tried to be
>>> neutral; I may post later with my thoughts about the methods, and what
>>> notable criteria they pass and fail that I know of.
>>>
>>> I've only done the methods that have a wiki page. At the bottom is a
>>> list of those methods that don't. Their proposers have already described
>>> them, but they might need a more clear description; in any case, I'll
>>> leave that to them :-)
>>>
>>> Smith//Score:
>>> This is a composite method.
>>> https://electowiki.org/wiki/Composite_methods
>>> It takes rated ballots.
>>> It first eliminates every candidate not in the Smith set, and
>>> then does
>>> Range voting (Score voting) on the remaining candidates. No
>>> normalization is done after the elimination, so a vote A: 10, B: 7, C: 0
>>> still gives B 7 points and C 0 even if A isn't in the Smith set.
>>> In Daniel Carrera's words: "The ballot would look like a Score
>>> ballot.
>>> To process the ballots, the scores are converted into rankings (equal
>>> rankings allowed), and the highest scoring candidate inside the Smith
>>> set is elected." See also Toby's last post.
>>>
>>> Approval with manual runoff:
>>> First do a round of Approval voting. Determine the top two
>>> candidates,
>>> then hold a later second round to determine who of the two wins. This is
>>> like STAR, but spacing the rounds apart makes it possible to hold
>>> debates, discuss the differences between the finalists, and so on. On
>>> the other hand, it's more expensive.
>>>
>>> Smith//Approval (explicit - specified approval cutoff):
>>> This is a composite method. It takes a ranked ballot with an
>>> approval
>>> cutoff marked.
>>> Every voter approves of (gives a point to) every candidate
>>> ranked above
>>> his approval cutoff. The Smith set member with the most points wins.
>>>
>>> Smith//Approval (implicit):
>>> Like Smith//Approval, except the voter can't specify an approval
>>> cutoff. Instead, every candidate ranked is counted as approved, and
>>> every candidate not ranked as not approved. The intent is to deter
>>> burial.
>>>
>>> Woodall:
>>> https://electowiki.org/wiki/Woodall%27s_method
>>> This method takes ranked ballots. First make a note of the
>>> initial
>>> Smith set. Then keep doing IRV until only one candidate of the initial
>>> Smith set remains. Elect that candidate. Note: This is not Benham - the
>>> initial Smith set never changes.
>>>
>>> Schwartz-Woodall:
>>> The same as Woodall, but with the Schwartz set. The Schwartz set
>>> is
>>> slightly less prone to ties.
>>>
>>> Copeland//Borda:
>>> https://electowiki.org/wiki/Ranked_Robin
>>> This method takes ranked ballots.
>>> First eliminate every candidate not in the Copeland set. Then
>>> calculate
>>> the Borda scores of the remaining candidates and elect its winner. This
>>> can be done by using the Condorcet matrix alone.
>>>
>>> Minmax(wv):
>>> https://electowiki.org/wiki/Minimax_Condorcet_method
>>> This method takes ranked ballots.
>>> Based on the ballots, consider each one-on-one matchups between
>>> candidates. Elect the candidate who has the most comfortable lead
>>> against the candidate who does best against him, one on one.
>>>
>>> Plurality:
>>> You know this one. Choose-one ballots, equal rank not allowed,
>>> most
>>> first preferences wins.
>>>
>>> Majority Judgement (category):
>>> https://en.wikipedia.org/wiki/Majority_judgment
>>> Various tiebreakers exist, e.g.
>>>
>>>
>>> https://en.wikipedia.org/wiki/Highest_median_voting_rules#Tiebreaking_procedures
>>>
>>> This takes graded ballots. The candidates give each candidate a
>>> grade,
>>> usually one of Excellent, Very Good, Good, Acceptable, Poor, or Reject.
>>> For each candidate, calculate the highest grade so that a majority gives
>>> that candidate at least that grade. The candidate with the highest such
>>> majority grade wins.
>>> The method is often indecisive, which means a tiebreaker has to
>>> be
>>> used. There are many, but they all try to preserve the dynamics of MJ.
>>>
>>> IRV:
>>> https://en.wikipedia.org/wiki/Instant-runoff_voting
>>> This should also be familiar to everybody here. It takes ranked
>>> ballots. Repeatedly eliminate the Plurality loser until a candidate
>>> obtains a majority of the non-exhausted first preferences.
>>>
>>> STAR:
>>> https://en.wikipedia.org/wiki/STAR_voting
>>> This takes rated ballots. The ballot typically has six ratings
>>> (zero to
>>> five inclusive), but the method could work with any number. The method
>>> counts the total number of points for each candidate. The pairwise
>>> winner of the two candidates with the most points wins.
>>>
>>> Schulze:
>>> https://electowiki.org/wiki/Schulze_method
>>> This takes ranked ballots. The method is complex but basically
>>> amounts
>>> to a cloneproof Smith generalization of Minmax.
>>> Let a beatpath from a candidate A to another candidate Z be a
>>> series of
>>> pairwise defeats A beats B beats C beats... beats Y beats Z. The
>>> strength of the path is measured by the strength of its weakest
>>> individual pairwise contest. Let "the" beatpath from A to Z be the
>>> beatpath of strongest strength.
>>> The Schulze winner is the candidate whose beatpath to anybody
>>> else is
>>> at least as strong as their beatpath back to him.
>>>
>>> Baldwin:
>>> https://electowiki.org/wiki/Baldwin%27s_method
>>> This takes ranked ballots.
>>> Baldwin is the Borda analog of IRV. In each round, the candidate
>>> with
>>> the lowest Borda count is eliminated. The last man standing wins. Also
>>> called Total Vote Runoff by Foley and Maskin.
>>>
>>> Black:
>>> https://electowiki.org/wiki/Black%27s_method
>>> This takes ranked ballots.
>>> If there is a Condorcet winner, elect that CW. Otherwise elect
>>> the
>>> Borda winner.
>>>
>>> Approval:
>>> https://electowiki.org/wiki/Approval_voting
>>> This takes an Approval ballot: vote for one or more. The
>>> candidate with
>>> the most marks wins.
>>>
>>> Benham:
>>> https://electowiki.org/wiki/Benham%27s_method
>>> This method takes ranked ballots. Repeatedly eliminate the
>>> Plurality
>>> loser until there's a Condorcet winner among the remaining candidates.
>>> Elect the Condorcet winner when that happens.
>>>
>>> Smith//DAC:
>>> This is a composite method.
>>> https://electowiki.org/wiki/Composite_methods
>>> https://electowiki.org/wiki/Descending_Acquiescing_Coalitions
>>> It takes ranked ballots.
>>> First eliminate every candidate not in the Smith set. Then
>>> perform the
>>> DAC algorithm to determine the winner.
>>> The DAC algorithm is complex, with the result being a cloneproof
>>> method
>>> otherwise close to Plurality.
>>> Essentially, the DAC algorithm works like this: For each
>>> ballot, for
>>> each set of candidates a voter acquiesces to, increase that set's count
>>> by one. Then sort the sets in order of count, descending. Starting at
>>> the top with the current viable set being every candidate, eliminate
>>> from the viable set every candidate who is not in the set at the list's
>>> current position, unless that would eliminate everybody. The candidate/s
>>> remaining once you've traversed the whole list is/are the winner/s.
>>> A voter acquiesces to a set if he doesn't rank any candidate
>>> outside
>>> the set strictly above a candidate within the set.
>>>
>>> RCIPE:
>>>
>>> https://electowiki.org/wiki/Ranked_Choice_Including_Pairwise_Elimination
>>> This takes ranked ballots.
>>> Modify IRV to, instead of eliminating the Plurality loser,
>>> eliminate
>>> the current Condorcet loser among the remaining (uneliminated)
>>> candidates. Only eliminate the Plurality loser if there is no Plurality
>>> loser. Once a candidate has a majority of the non-exhausted first
>>> preference votes, elect that candidate.
>>>
>>> RP(wv):
>>> https://electowiki.org/wiki/Ranked_Pairs
>>> This takes ranked ballots.
>>> First count the pairwise matrix. Create a sorted list of every
>>> pairwise
>>> victory, sorted by its strength. Break ties by random ballot.
>>> Proceed from the top down the list, locking in a pairwise
>>> relation
>>> unless it would create a cycle.
>>> At the end, the locked-in contests give an order of candidates.
>>> This is
>>> the election order: the candidate on top is the winner.
>>> Strictly speaking, the tiebreaking is by random voter hierarchy,
>>> but
>>> I've skipped the details about how that is constructed.
>>>
>>> I think that should be correct, but if I forgot something or described
>>> them incorrectly, let me know.
>>>
>>> The methods not described are:
>>> Margins-Sorted Approval
>>> Double Defeat, Hare
>>> Margins-Sorted Minimum Losing Votes (equal-rated whole)
>>> Gross Loser Elimination
>>> Max Strength Transitive Beatpath
>>>
>>> -km
>>> ----
>>> Election-Methods mailing list - see https://electorama.com/em for list
>>> info
>>>
>> ----
>> Election-Methods mailing list - see https://electorama.com/em for list
>> info
>>
> ----
> Election-Methods mailing list - see https://electorama.com/em for list
> info
>
KM
Kristofer Munsterhjelm
Fri, Apr 12, 2024 11:05 PM
On 2024-04-12 22:37, Michael Ossipoff wrote:
Right!! That’s something I wanted to say. I’m removing Schulze from the
upper part of my ranking for that reason, & replacing it with
Smith//Approval(implicit).
How about we say to rank in order of overall merit for public
proposal…which includes proposability?
Then the unproposably complex methods could be left unranked or ranked
near bottom.
Or take it a step further & trim the candidate-set to only include
proposable methods? But might it be quicker to just let that be a voting
judgment, instead of having to do that evaluation as a separate
preliminary collective evaluation, which would delay the voting?
I would prefer that the merit question for the poll stays the same:
"which voting methods do you prefer to which others?", i.e. ranking them
in preference.
Then it would be up to the individual voter to consider what aspects of
the method are most important; and anyone who wants to use it to guide
reform can just screen away the unproposable methods.
After all, we have to do that anyway, because it's pretty much
impossible to collapse disparate concerns into a single order without
making some assumptions about which concerns are most important. Would I
recommend Benham ahead of Schulze? Well, that depends on whether there's
tons of strategy in the place in question and whether they (and I) can
accept the nonmonotonicity.
In the absence of any such situational information, any order will be
imperfect. In any case, if the poll's output ranking ends up being like
Extrinsic Borda-Weighted Landau Intersection > Iterative Refinement
Keener + Sinkhorn (mean) > Schulze > RP > Approval > IRV,
then it's a simple matter for reformers to just discard everything above
Schulze (or RP) for a public proposal. In practice, I doubt the exotic
methods will rank that high anyway.
-km
On 2024-04-12 22:37, Michael Ossipoff wrote:
> Right!! That’s something I wanted to say. I’m removing Schulze from the
> upper part of my ranking for that reason, & replacing it with
> Smith//Approval(implicit).
>
> How about we say to rank in order of overall merit for public
> proposal…which includes proposability?
>
> Then the unproposably complex methods could be left unranked or ranked
> near bottom.
>
> Or take it a step further & trim the candidate-set to only include
> proposable methods? But might it be quicker to just let that be a voting
> judgment, instead of having to do that evaluation as a separate
> preliminary collective evaluation, which would delay the voting?
I would prefer that the merit question for the poll stays the same:
"which voting methods do you prefer to which others?", i.e. ranking them
in preference.
Then it would be up to the individual voter to consider what aspects of
the method are most important; and anyone who wants to use it to guide
reform can just screen away the unproposable methods.
After all, we have to do that anyway, because it's pretty much
impossible to collapse disparate concerns into a single order without
making some assumptions about which concerns are most important. Would I
recommend Benham ahead of Schulze? Well, that depends on whether there's
tons of strategy in the place in question and whether they (and I) can
accept the nonmonotonicity.
In the absence of any such situational information, any order will be
imperfect. In any case, if the poll's output ranking ends up being like
Extrinsic Borda-Weighted Landau Intersection > Iterative Refinement
Keener + Sinkhorn (mean) > Schulze > RP > Approval > IRV,
then it's a simple matter for reformers to just discard everything above
Schulze (or RP) for a public proposal. In practice, I doubt the exotic
methods will rank that high anyway.
-km
MO
Michael Ossipoff
Sat, Apr 13, 2024 5:54 AM
On Fri, Apr 12, 2024 at 16:05 Kristofer Munsterhjelm :
I would prefer that the merit question for the poll stays the same:
"which voting methods do you prefer to which others?", i.e. ranking them
in preference.
Then it would be up to the individual voter to consider what aspects of
the method are most important
:-D. “…stays the same”? You’re trying to completely reverse the
express-purpose & entire fundamental nature of the poll that I proposed. It
was for informing voters about the EM membership’s social-ranking of
proposals for public political elections.
and anyone who wants to use it to guide
reform can just screen away the unproposable methods.
Sure, anyone need only find all of the ones that are
public-election-suitable & also simple enough to be proposable. … by
searching through a ton of chaff.
But it would still, of course be completely meaningless & useless, because
people have no way of knowing for what purpose or by what standard the EM
members were rating those methods…& the members, by your system of course
would all be evaluating & ranking based on all different standards &
purposes.
You proposal is nonsense. What it amounts to is a proposal to cancel the
poll that people have been participating, & replace it with a new entirely
different one, of your idiosyncratic choosing… one so vague in its question
as to be completely meaningless, & useless for any purpose.
It’s late, & this this time of night isn’t the time to start a long reply.
I just wanted to post these brief preliminary comments. More about this
tomorrow maybe.
Definitely more either on this, or replies to other posts, + maybe some of
the electioneering we spoke of.
After all, we have to do that anyway, because it's pretty much
impossible to collapse disparate concerns into a single order without
making some assumptions about which concerns are most important. Would I
recommend Benham ahead of Schulze? Well, that depends on whether there's
tons of strategy in the place in question and whether they (and I) can
accept the nonmonotonicity.
In the absence of any such situational information, any order will be
imperfect. In any case, if the poll's output ranking ends up being like
Extrinsic Borda-Weighted Landau Intersection > Iterative Refinement
Keener + Sinkhorn (mean) > Schulze > RP > Approval > IRV,
then it's a simple matter for reformers to just discard everything above
Schulze (or RP) for a public proposal. In practice, I doubt the exotic
methods will rank that high anyway.
-km
Election-Methods mailing list - see https://electorama.com/em for list
info
On Fri, Apr 12, 2024 at 16:05 Kristofer Munsterhjelm :
> I would prefer that the merit question for the poll stays the same:
> "which voting methods do you prefer to which others?", i.e. ranking them
> in preference.
>
> Then it would be up to the individual voter to consider what aspects of
> the method are most important
:-D. “…stays the same”? You’re trying to completely reverse the
express-purpose & entire fundamental nature of the poll that I proposed. It
was for informing voters about the EM membership’s social-ranking of
*proposals for public political elections*.
and anyone who wants to use it to guide
> reform can just screen away the unproposable methods.
Sure, anyone need only find all of the ones that are
public-election-suitable & also simple enough to be proposable. … by
searching through a ton of chaff.
>
But it would still, of course be completely meaningless & useless, because
people have no way of knowing for what purpose or by what standard the EM
members were rating those methods…& the members, by your system of course
would all be evaluating & ranking based on all different standards &
purposes.
You proposal is nonsense. What it amounts to is a proposal to cancel the
poll that people have been participating, & replace it with a new entirely
different one, of your idiosyncratic choosing… one so vague in its question
as to be completely meaningless, & useless for any purpose.
It’s late, & this this time of night isn’t the time to start a long reply.
I just wanted to post these brief preliminary comments. More about this
tomorrow maybe.
Definitely more either on this, or replies to other posts, + maybe some of
the electioneering we spoke of.
>
>
> After all, we have to do that anyway, because it's pretty much
> impossible to collapse disparate concerns into a single order without
> making some assumptions about which concerns are most important. Would I
> recommend Benham ahead of Schulze? Well, that depends on whether there's
> tons of strategy in the place in question and whether they (and I) can
> accept the nonmonotonicity.
>
> In the absence of any such situational information, any order will be
> imperfect. In any case, if the poll's output ranking ends up being like
>
> Extrinsic Borda-Weighted Landau Intersection > Iterative Refinement
> Keener + Sinkhorn (mean) > Schulze > RP > Approval > IRV,
>
> then it's a simple matter for reformers to just discard everything above
> Schulze (or RP) for a public proposal. In practice, I doubt the exotic
> methods will rank that high anyway.
>
> -km
> ----
> Election-Methods mailing list - see https://electorama.com/em for list
> info
>
MG
Michael Garman
Sat, Apr 13, 2024 7:25 AM
I second this proposal.
On Sat, Apr 13, 2024 at 1:05 AM Kristofer Munsterhjelm km_elmet@t-online.de
wrote:
On 2024-04-12 22:37, Michael Ossipoff wrote:
Right!! That’s something I wanted to say. I’m removing Schulze from the
upper part of my ranking for that reason, & replacing it with
Smith//Approval(implicit).
How about we say to rank in order of overall merit for public
proposal…which includes proposability?
Then the unproposably complex methods could be left unranked or ranked
near bottom.
Or take it a step further & trim the candidate-set to only include
proposable methods? But might it be quicker to just let that be a voting
judgment, instead of having to do that evaluation as a separate
preliminary collective evaluation, which would delay the voting?
I would prefer that the merit question for the poll stays the same:
"which voting methods do you prefer to which others?", i.e. ranking them
in preference.
Then it would be up to the individual voter to consider what aspects of
the method are most important; and anyone who wants to use it to guide
reform can just screen away the unproposable methods.
After all, we have to do that anyway, because it's pretty much
impossible to collapse disparate concerns into a single order without
making some assumptions about which concerns are most important. Would I
recommend Benham ahead of Schulze? Well, that depends on whether there's
tons of strategy in the place in question and whether they (and I) can
accept the nonmonotonicity.
In the absence of any such situational information, any order will be
imperfect. In any case, if the poll's output ranking ends up being like
Extrinsic Borda-Weighted Landau Intersection > Iterative Refinement
Keener + Sinkhorn (mean) > Schulze > RP > Approval > IRV,
then it's a simple matter for reformers to just discard everything above
Schulze (or RP) for a public proposal. In practice, I doubt the exotic
methods will rank that high anyway.
-km
I second this proposal.
On Sat, Apr 13, 2024 at 1:05 AM Kristofer Munsterhjelm <km_elmet@t-online.de>
wrote:
> On 2024-04-12 22:37, Michael Ossipoff wrote:
> > Right!! That’s something I wanted to say. I’m removing Schulze from the
> > upper part of my ranking for that reason, & replacing it with
> > Smith//Approval(implicit).
> >
> > How about we say to rank in order of overall merit for public
> > proposal…which includes proposability?
> >
> > Then the unproposably complex methods could be left unranked or ranked
> > near bottom.
> >
> > Or take it a step further & trim the candidate-set to only include
> > proposable methods? But might it be quicker to just let that be a voting
> > judgment, instead of having to do that evaluation as a separate
> > preliminary collective evaluation, which would delay the voting?
>
> I would prefer that the merit question for the poll stays the same:
> "which voting methods do you prefer to which others?", i.e. ranking them
> in preference.
>
> Then it would be up to the individual voter to consider what aspects of
> the method are most important; and anyone who wants to use it to guide
> reform can just screen away the unproposable methods.
>
> After all, we have to do that anyway, because it's pretty much
> impossible to collapse disparate concerns into a single order without
> making some assumptions about which concerns are most important. Would I
> recommend Benham ahead of Schulze? Well, that depends on whether there's
> tons of strategy in the place in question and whether they (and I) can
> accept the nonmonotonicity.
>
> In the absence of any such situational information, any order will be
> imperfect. In any case, if the poll's output ranking ends up being like
>
> Extrinsic Borda-Weighted Landau Intersection > Iterative Refinement
> Keener + Sinkhorn (mean) > Schulze > RP > Approval > IRV,
>
> then it's a simple matter for reformers to just discard everything above
> Schulze (or RP) for a public proposal. In practice, I doubt the exotic
> methods will rank that high anyway.
>
> -km
>