Why don't you just use that formula and calculate the weighted rating for each movie and index that value? sort=wrating desc
Maybe I didn't understand your question. mike On Mon, Mar 12, 2012 at 1:38 PM, Zac Smith <z...@trinkit.com> wrote: > Does anyone have an example formula that can be used to sort by a 5 star > rating in SOLR? > I am looking at an example on IMDB's top 250 movie list: > > The formula for calculating the Top Rated 250 Titles gives a true Bayesian > estimate: > weighted rating (WR) = (v ÷ (v+m)) × R + (m ÷ (v+m)) × C > where: > R = average for the movie (mean) = (Rating) > v = number of votes for the movie = (votes) > m = minimum votes required to be listed in the Top 250 (currently 3000) > C = the mean vote across the whole report (currently 6.9) > >
