Comments on: Implementing Schulze STV http://cognitivesandbox.com/posts/implementing-schulze-stv/ Vegan cooking, unix tidbits and other minor discoveries Wed, 25 Aug 2010 22:33:06 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Brad Beattie http://cognitivesandbox.com/posts/implementing-schulze-stv/comment-page-1/#comment-553 Brad Beattie Wed, 25 Aug 2010 22:33:06 +0000 http://www.cognitivesandbox.com/?p=2461#comment-553 As a note for future reference, the Schulze proportional ranking mentioned in Markus' first comment has since been implemented: http://github.com/bradbeattie/Election-Web-Service/blob/master/schulze_pr.py As a note for future reference, the Schulze proportional ranking mentioned in Markus’ first comment has since been implemented: http://github.com/bradbeattie/Election-Web-Service/blob/master/schulze_pr.py

]]> By: Markus Schulze http://cognitivesandbox.com/posts/implementing-schulze-stv/comment-page-1/#comment-540 Markus Schulze Tue, 26 Jan 2010 21:26:45 +0000 http://www.cognitivesandbox.com/?p=2461#comment-540 Here in Germany, I promote districts with 8-13 seats each, plus a proportional compensation on the national level. See: http://home.versanet.de/~chris1-schulze/schulze4.pdf http://home.versanet.de/~chris1-schulze/schulze5.pdf Here in Germany, I promote districts with 8-13 seats each, plus a proportional compensation on the national level.

See:
http://home.versanet.de/~chris1-schulze/schulze4.pdf
http://home.versanet.de/~chris1-schulze/schulze5.pdf

]]> By: Brad Beattie http://cognitivesandbox.com/posts/implementing-schulze-stv/comment-page-1/#comment-539 Brad Beattie Tue, 26 Jan 2010 21:07:12 +0000 http://www.cognitivesandbox.com/?p=2461#comment-539 In practice, how many seats do you find are necessary for the results to match up in most cases? German parliament is something around 600+, but I start to notice a slowness when M>5. In practice, how many seats do you find are necessary for the results to match up in most cases? German parliament is something around 600+, but I start to notice a slowness when M>5.

]]> By: Markus Schulze http://cognitivesandbox.com/posts/implementing-schulze-stv/comment-page-1/#comment-538 Markus Schulze Tue, 26 Jan 2010 20:39:44 +0000 http://www.cognitivesandbox.com/?p=2461#comment-538 The winners of the Schulze STV method are almost always identical to the first candidates of the Schulze proportional ranking. Therefore, when the number of seats M is large, it makes sense to recommend that the Schulze proportional ranking should be calculated and that the first M candidates of this ranking should be elected. Actually, here in Germany, I promote the Schulze proportional ranking method rather than the Schulze STV method. The reason: In Germany, house monotonicity is considered very important; and proportional ranking methods are house monotonic while STV methods are not house monotonic. See: http://en.wikipedia.org/wiki/Apportionment_paradox The winners of the Schulze STV method are almost always identical to the first candidates of the Schulze proportional ranking. Therefore, when the number of seats M is large, it makes sense to recommend that the Schulze proportional ranking should be calculated and that the first M candidates of this ranking should be elected.

Actually, here in Germany, I promote the Schulze proportional ranking method rather than the Schulze STV method. The reason: In Germany, house monotonicity is considered very important; and proportional ranking methods are house monotonic while STV methods are not house monotonic.

See:
http://en.wikipedia.org/wiki/Apportionment_paradox

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