[EM] PR pairwise
fsimmons at pcc.edu
Sun Jun 24 20:38:02 PDT 2001
Here's a crude PR pairwise, sequential method:
When comparing two candidates C1 and C2 on a ballot that ranks C1 ahead of
C2, give the ballot a weight of the reciprocal of one more than the number
of candidates ranked above C1 (on this ballot) who have already been
Two winner example:
Candidate A gets elected in the first round.
In the second round all of the ballots from the first faction get half
weight, so C beats B, 34 to 33.
If two voters defected from the minority faction, A and B would be the
This method can be refined in various ways that I won't go into now, and
adapted to Dyadic and Universal Approval as well.
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