public IReadOnlyCollection <SimilarMovies> GetSimilarMovies(Movie m, User[] users, int count = 100)
{
BestKeeper <SimilarMovies> best = new BestKeeper <SimilarMovies>(count,
(m1, m2) => Math.Sign(m1.Similarity - m2.Similarity));
foreach (var movie in Movies)
{
if (movie != m)
{
best.AddCandidate(new SimilarMovies(movie, SimilarityPearson(m, movie, users)));
}
}
return(best);
}
public IReadOnlyCollection <SimilarUser> GetSimilarUsers(User u, int count = 100)
{
BestKeeper <SimilarUser> best = new BestKeeper <SimilarUser>(count,
(u1, u2) => Math.Sign(u1.Similarity - u2.Similarity));
foreach (var other in Users)
{
if (other != u)
{
best.AddCandidate(new SimilarUser(other, SimilarityPearson(u, other)));
}
}
return(best);
}