Re: Sort by bayesian function for 5 star rating

2012-03-14 Thread Mike Austin
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 wrote: > Does anyone have an example formula that can be used to sort by a 5 sta

Sort by bayesian function for 5 star rating

2012-03-12 Thread Zac Smith
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