RatingSGDFactorizer ClassNReco.Recommender Class Library
Matrix factorization with user and item biases for rating prediction, trained with plain vanilla SGD
Inheritance Hierarchy

System Object
  NReco.CF.Taste.Impl.Recommender.SVD AbstractFactorizer
    NReco.CF.Taste.Impl.Recommender.SVD RatingSGDFactorizer
      NReco.CF.Taste.Impl.Recommender.SVD SVDPlusPlusFactorizer

Namespace: NReco.CF.Taste.Impl.Recommender.SVD
Assembly: NReco.Recommender (in NReco.Recommender.dll) Version: (

public class RatingSGDFactorizer : AbstractFactorizer

The RatingSGDFactorizer type exposes the following members.


Public methodRatingSGDFactorizer(IDataModel, Int32, Int32)
Initializes a new instance of the RatingSGDFactorizer class
Public methodRatingSGDFactorizer(IDataModel, Int32, Double, Double, Double, Int32, Double)
Initializes a new instance of the RatingSGDFactorizer class

Protected methodcreateFactorization (Inherited from AbstractFactorizer.)
Public methodEquals
Determines whether the specified Object is equal to the current Object.
(Inherited from Object.)
Public methodFactorize (Overrides AbstractFactorizer Factorize .)
Protected methodFinalize
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object.)
Public methodGetHashCode
Serves as a hash function for a particular type.
(Inherited from Object.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Protected methoditemIndex (Inherited from AbstractFactorizer.)
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Protected methodprepareTraining
Public methodRefresh (Inherited from AbstractFactorizer.)
Protected methodshufflePreferences
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
Protected methodupdateParameters
Protected methoduserIndex (Inherited from AbstractFactorizer.)

Protected fieldbiasLearningRate
Protected fieldbiasReg
Protected fielddataModel
Protected fieldStatic memberFEATURE_OFFSET
Protected fieldStatic memberITEM_BIAS_INDEX
Protected fielditemVectors
Protected fieldlearningRate
Protected fieldlearningRateDecay
Protected fieldnumFeatures
Protected fieldpreventOverfitting
Protected fieldrandomNoise
Protected fieldStatic memberUSER_BIAS_INDEX
Protected fielduserVectors
See Also