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

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). In other words, negative pairwise counting a) treats a voter as having "approved" all of the candidates they ranked above last-place, b) counts the voter's pairwise preferences only among the candidates they ranked"approved", and c) aggregates those two pieces of information for all voters (such that for each candidate, you have the total number of voters who "approved" them along with the relevant pairwise preferences), and then calculates the final pairwise totals using the aggregated information.