public static void TestSlopeOne()
{
var algorithm = new SlopeOne();
var recommender = new CollaborativeFilteringRecommender(algorithm);
recommender.AddPlayerRating(3, true);
recommender.AddPlayerRating(6, false);
recommender.AddPlayerRating(39, true);
recommender.AddPlayerRating(50, false);
recommender.AddPlayerRating(61, true);
recommender.Fit();
for (var i = 0; i < recommender.m_DataSet.itemCount; i++)
{
Debug.Log($"SlopeOne est={algorithm.Predict(recommender.m_PlayerUserId, i).est}");
}
}
public static void TestNonnegativeMatrixFactorization()
{
var algorithm = new NonnegativeMatrixFactorization()
{
nEpochs = 1,
initLow = 0.5f,
initHigh = 0.5f
};
var recommender = new CollaborativeFilteringRecommender(algorithm);
recommender.AddPlayerRating(3, true);
recommender.AddPlayerRating(6, false);
recommender.AddPlayerRating(39, true);
recommender.AddPlayerRating(50, false);
recommender.AddPlayerRating(61, true);
recommender.Fit();
for (var i = 0; i < recommender.m_DataSet.itemCount; i++)
{
Debug.Log($"NMF est={algorithm.Predict(recommender.m_PlayerUserId, i).est}");
}
}