> Date: Mon, 21 Nov 2005 22:22:00 +0000 (UTC) > From: Rob Brown > Subject: Re: [EM] "scored condorcet", etc
> I would probably want to do some normalization with the scores so that > higher scores are better, and so that the score of the lowest > candidate > is not zero unless he really got zero votes....but that is fairly > trivial. I don't know what you mean by normalisation here, but it usually means some scaling up or down (i.e. multiplication or division). What I would do is probably apply the following formula to get each candidate's score. Candidate's Score = Total No. of Ballots - Max wv against Candidate If there is a Condorcet Winner, then I think it would be easiest to make that candidate's "Max wv against" equal 0. This means that it is best to assume that a pairwise result of 0-0 between two candidates is a loss for both candidates. Therefore, it would be best if any tie between two candidates is a loss for both the candidates. If you think that this is a bit kludgy, then I suppose you could use MMPO (MinMax Pairwise Opposition). This is basically the same as MinMax (wv) except that you "ignore" whether a pairwise result is a win or loss. You just look at the number of pairwise 'votes' that oppose a candidate. As discussed quite recently, MMPO is FBC compliant and basically elects the candidate who the voters oppose the least. On the other hand, it can elect a candidate who the voters support the least. (I hope I got this paragraph right). Thanks, Gervase. ---- election-methods mailing list - see http://electorama.com/em for list info
