public MediaLiteRatingPredictor(MyMediaLite.IRecommender recommender, IEnumerable <Relation> relations)
: this(recommender)
{
if (recommender is SocialMF)
{
_relations = new SparseBooleanMatrix();
foreach (var con in relations)
{
_relations[_usersMap.ToInternalID(con.UserId), _usersMap.ToInternalID(con.ConnectedId)] = true;
}
((SocialMF)recommender).UserRelation = _relations;
}
}
public MediaLiteRatingPredictor(MyMediaLite.IRecommender recommender)
{
_ratingPredictor = recommender as MyMediaLite.RatingPrediction.IRatingPredictor;
_usersMap = new Mapping();
_itemsMap = new Mapping();
}