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• AdditionalFeedback : ITransductiveItemRecommender , ITransductiveRatingPredictor , SigmoidItemAsymmetricFactorModel , SigmoidUserAsymmetricFactorModel , SigmoidCombinedAsymmetricFactorModel , SVDPlusPlus
• AllItems : IDataSet , DataSet
• AllUsers : DataSet , IDataSet
• Alpha : KNN , WRMF
• AlphaLearnRate : TimeAwareBaseline
• AttributeSmoothing : NaiveBayes
• Average : Ratings , IRatings