[EM] Median ratings

Kristofer Munsterhjelm km-elmet at broadpark.no
Tue Mar 30 06:09:06 PDT 2010


Is it possible to make Median Ratings summable? Median Ratings works 
like this: gather rated ballots, then the winner is the candidate with 
the greatest median score.

Even if it's not a very good method, a way to make it summable would be 
of interest to me because it would let me calculate median 
proportionality/BR scores without having to store an array of all n 
scores (for n rounds).

That is, unless the summable version only determines which candidate has 
the greatest median rating (or the order thereof) rather than the actual 
median ratings for the different candidates.

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