[EM] Condorcet strategy and anti-reversal enhancements

2004-01-16 Thread James Green-Armytage
Dear election methods fans, Does anyone remember my proposal for a voting procedure which I posted on December 17th, titled "a strategic problem and possible remedy for Condorcet-efficient voting methods"? Here is the link, to make it easier... http://lists.electorama.com/pipermail/electi

Re: [EM] Advantages of Dirichlet Region Districts

2004-01-16 Thread Michael Rouse
I like the idea of Voronoi polygons for automated districting, but there since this *is* the "election methods" list, there is another possibility -- allow the people to vote for the districting method at the same time they are voting for candidates. It might work something like: 1. Distri

[EM] Condorcet completed by SC reversed-rankings IRV elimination

2004-01-16 Thread Chris Benham
I propose and reccomend this single-winner  Condorcet  compliant method: Plain ranked-ballots, equal preferences and truncation ok. 1: Eliminate all candidates who are not members of the Schwartz set. 2: If  more than one candidate remains, then based

Re: [EM] Advantages of Dirichlet Region Districts

2004-01-16 Thread Forest Simmons
On Fri, 16 Jan 2004, Forest Simmons wrote: > The only vote would be to decide on which objective measure of over-all > compactness to adopt. > > If anybody is thinking about a boundary based measure, please tell me how > to find the geographical boundary of the partition suggested by Stephane >

re: [EM] Advantages of Dirichlet Region Districts

2004-01-16 Thread Forest Simmons
On Thu, 15 Jan 2004, Alex Small wrote: > Forest suggested that election districts should be drawn by defining a > center for each district, and specifying that district i will be the set > of all points which are closer to center i than any other center. He > suggested that "closer" be measured

Re: [EM] Advantages of Dirichlet Region Districts

2004-01-16 Thread Forest Simmons
On Thu, 15 Jan 2004, Ernest Prabhakar wrote: > > I think the real question -- and the real problem -- is that if I > remember correctly Joe's proposal requires: > a) objective criteria > b) some voting method for deciding between them > > If we have a determinate objective criteria, I don't see w

Re: [EM] (typo in) Advantages of Dirichlet Region Districts

2004-01-16 Thread Forest Simmons
On Thu, 15 Jan 2004, Forest Simmons wrote: > > If there are n districts and N voters per district, then the number of > within district distances to average together would be > >N*n*(n-1)/2 , > Should read n*N*(N-1)/2 . Forest Election-methods mailing list - see http://

Re: [EM] Advantages of Dirichlet Region Districts

2004-01-16 Thread Ernest Prabhakar
Alex & Matt, I think these two questions are about the same: Matt responds: the objectively measurable optimization goal (such as smallest total road cuts count or perimeters length) with objectively defined constraints (such as per district maximum acceptable population size deviance from ide

Re: [EM] Yes, SMA does sound like ACC

2004-01-16 Thread Adam Tarr
At 10:40 AM 1/16/2004 +, MIKE OSSIPOFF wrote: Does anyone know the date of the EM message in which someone spoke of electing someone who can win at Nash equilibrium? I'm not sure, but you may be referring to the "Equilibrium in Approval Voting" thread that began on April 4, 2002. -Adam ---

[EM] Preliminary first imprression--more tomorrow

2004-01-16 Thread MIKE OSSIPOFF
My first impression is that none of those versions of ACC can meet all the majority defensive strategy criteria, beause they don't say to delete every candidate who has a majority defeat. But I shouldn't say that for sure at this hour of the night (3:00 A.M.). And so I've printed out those 3 po

[EM] Yes, SMA does sound like ACC

2004-01-16 Thread MIKE OSSIPOFF
Chris wrote: This seems very similar to "Approval Completed Condorcet" (ACC) which is discussed in these 2002 postings by Adam Tarr I don't want to plagarize or claim credit for anyone else's proposal. That's why I've been asking what better-method proposals have been made. In fact, I also said

[EM] Wording clarification

2004-01-16 Thread MIKE OSSIPOFF
I said that offensive truncation, offensive order-reversal, and defensive truncation are present in all the best methods, including the very best. I should clarify that offensive truncation is not a concern in any of the best methods, including wv, and including any marginally better methods tha

[EM] How good can a method be?

2004-01-16 Thread MIKE OSSIPOFF
3. If more than 1 remain, apply Approval, electing the candidate above the most voters' Approval cutoffs. You wrote: Chris Benham's suggestion would make sense here: any ballots that approve all or none of the remaining candidates could be minimally adjusted to make them relevant in step 3. Abso