For a project, I'm working on films. I'm trying to establish a ranking of the best actor/director duos. So, I took inspiration from the formula used by IMDb to rank films:
this is the imdb formula: $(v/(v+m))*R + (m/(v+m))*C$
where:
-v is the number of votes garnered by the movie
-m is the minimum number of votes required for the movie to be in the chart
-R is the mean rating of the movie
-C is the mean rating of all the movies in the dataset
because i want to rate duos and not just one movie, i have to take into account the number of movies the duo realized together.
so this is what I simply did:
$(v/(v+m))*R + (m/(v+m))*C+0.1*n$
where n is the number of movies realized by the duo.
However, I'm not satisfied with the result.
How could I improve this formula?