public static RecommenderResult RecommendUser( this IMatrixFactorizationRecommender recommender, IEnumerable <string> items) { if (recommender == null) { throw new ArgumentNullException(nameof(recommender)); } if (items == null) { throw new ArgumentNullException(nameof(items)); } return(recommender.RecommendUser(recommender.ComputeUserFactors(items))); }
public static RecommenderResult RecommendUser( this IMatrixFactorizationRecommender recommender, UserFeatures user) { if (recommender == null) { throw new ArgumentNullException(nameof(recommender)); } if (user == null) { throw new ArgumentNullException(nameof(user)); } return(recommender.RecommendUser(user, RecommenderResultBuilderFactory.Instance)); }
public static RecommenderResult RecommendUser( this IMatrixFactorizationRecommender recommender, Dictionary <string, double> items) { if (recommender == null) { throw new ArgumentNullException(nameof(recommender)); } if (items == null) { throw new ArgumentNullException(nameof(items)); } return(recommender.RecommendUser(recommender.ComputeUserFeatures(items))); }
public static UserFeatures ComputeUserFactors( this IMatrixFactorizationRecommender recommender, IEnumerable <string> items) { if (recommender == null) { throw new ArgumentNullException(nameof(recommender)); } if (items == null) { throw new ArgumentNullException(nameof(items)); } return(recommender.ComputeUserFeatures(items.ToDictionary(o => o, o => 1.0))); }
public static RecommenderResult RankUsers( this IMatrixFactorizationRecommender recommender, string userId, IEnumerable <KeyValuePair <string, Dictionary <string, double> > > userItems) { if (recommender == null) { throw new ArgumentNullException(nameof(recommender)); } if (userId == null) { throw new ArgumentNullException(nameof(userId)); } if (userItems == null) { throw new ArgumentNullException(nameof(userItems)); } return(recommender.RankUsers(userId, userItems.Select(o => new KeyValuePair <string, UserFeatures>(o.Key, recommender.ComputeUserFeatures(o.Value))).ToList())); }
public static RecommenderResult RankUsers( this IMatrixFactorizationRecommender recommender, UserFeatures user, List <KeyValuePair <string, UserFeatures> > users) { if (recommender == null) { throw new ArgumentNullException(nameof(recommender)); } if (user == null) { throw new ArgumentNullException(nameof(user)); } if (users == null) { throw new ArgumentNullException(nameof(users)); } return(recommender.RankUsers(user, users, RecommenderResultBuilderFactory.Instance)); }