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## U

UnitTest - Class in prea.recommender
  A unit test module for user-defined custom recommenders.
UnitTest(Recommender, SparseMatrix, SparseMatrix) - Constructor for class prea.recommender.UnitTest
  Construct an instance of unit test module.
usedRateMatrix - Variable in class prea.recommender.UnitTest
usedTestMatrix - Variable in class prea.recommender.UnitTest
UserAverage - Class in prea.recommender.baseline
  The class implementing a baseline, predicting by the average of target user ratings.
UserAverage(int, int, double, double, SparseVector) - Constructor for class prea.recommender.baseline.UserAverage
  Construct a constant model with the given data.
UserBased - Class in prea.recommender.memory
  The class implementing user-based neighborhood method, predicting by referring to rating matrix for each query.
UserBased(int, int, int, int, int, int, boolean, double, SparseVector, boolean, String) - Constructor for class prea.recommender.memory.UserBased
  Construct a user-based model with the given data.
userCount - Variable in class prea.data.splitter.DataSplitManager
  The number of users.
userCount - Static variable in class prea.main.Prea
  The number of users.
userCount - Static variable in class prea.main.Splitter
  The number of users.
userCount - Variable in class prea.recommender.baseline.BaselineRecommender
  The number of users.
userCount - Variable in class prea.recommender.CustomRecommender
  The number of users.
userCount - Variable in class prea.recommender.etc.FastNPCA
  The number of users.
userCount - Variable in class prea.recommender.etc.NonlinearPMF
  The number of users.
userCount - Variable in class prea.recommender.etc.RankBased
  The number of users.
userCount - Variable in class prea.recommender.etc.SlopeOne
  The number of users.
userCount - Variable in class prea.recommender.matrix.MatrixFactorizationRecommender
  The number of users.
userCount - Variable in class prea.recommender.memory.MemoryBasedRecommender
  The number of users.
userFeatures - Variable in class prea.recommender.matrix.MatrixFactorizationRecommender
  User profile in low-rank matrix form.
userRateAverage - Static variable in class prea.data.splitter.DataSplitManager
  Average of ratings for each user.
userRateAverage - Static variable in class prea.main.Prea
  Average of ratings for each user.
userRateAverage - Static variable in class prea.main.Splitter
  Average rating for each user.
userRateAverage - Variable in class prea.recommender.baseline.UserAverage
  Average of ratings for each user.
userRateAverage - Variable in class prea.recommender.memory.UserBased
  Average of ratings for each user.
userSimilarityFileName - Variable in class prea.recommender.memory.UserBased
  The name of pre-calculated user similarity file, if it is used.
userSimilarityPrefetch - Static variable in class prea.main.Prea
  Indicating whether loading pre-calculated user similarity file or not
userSimilarityPrefetch - Variable in class prea.recommender.memory.UserBased
  Indicating whether the pre-calculated user similarity file is used.

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