User:BetterVotingAdvocacy/Negative vote-counting approach for pairwise counting: Difference between revisions

[[File:Adding ballot matrices in negative pairwise counting approach.png|thumb|1088x1088px|Note in "Step 1: Combination" that the two ballots' negative pairwise matrices are added up.[[File:Pairwise counting negative counting with ranked ballot GIF.gif|thumb|454x454px|GIF for negative counting. Click on the image and then the thumbnail of the image to see the animation.]]]]

The negative counting approach is an alternative method of doing [[pairwise counting]]. It is faster (i.e. requires less marks and tallying), depending on implementation, when voters rank multiple candidates last. Rather than counting a voter's preference for a candidate they ranked (i.e. over lower-ranked candidates), it counts that voter's '''lack''' of preference for that candidate (i.e. over the candidate themselves and higher-ranked candidates).

=== Independence of unranked candidates===

The negative approach doesn't require additional marks to be made for a given ballot when candidates are added to the election that that ballot doesn't vote for. For example, at most 3 marks need be made for a voter whose ballot is A>B, regardless of whether there are 2 candidates in the election or 100.

 

== See also ==