Matrix factorization with user and item biases for rating prediction, trained with plain vanilla SGD
Inheritance Hierarchy
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: 1.0.0.0 (1.0.0.0)
Syntax
The RatingSGDFactorizer type exposes the following members.
Constructors
| Name | Description | |
|---|---|---|
 | RatingSGDFactorizer(IDataModel, Int32, Int32) | Initializes a new instance of the RatingSGDFactorizer class |
| RatingSGDFactorizer(IDataModel, Int32, Double, Double, Double, Int32, Double) | Initializes a new instance of the RatingSGDFactorizer class |
Methods
| Name | Description | |
|---|---|---|
 | createFactorization | (Inherited from AbstractFactorizer.) |
| Equals | (Inherited from Object.) |
| Factorize | (Overrides AbstractFactorizer Factorize .) |
| Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| itemIndex | (Inherited from AbstractFactorizer.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| prepareTraining | |
| Refresh | (Inherited from AbstractFactorizer.) |
| shufflePreferences | |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
| updateParameters | |
| userIndex | (Inherited from AbstractFactorizer.) |
Fields
| Name | Description | |
|---|---|---|
 | biasLearningRate | |
| biasReg | |
| dataModel | |
 | FEATURE_OFFSET | |
| ITEM_BIAS_INDEX | |
| itemVectors | |
| learningRate | |
| learningRateDecay | |
| numFeatures | |
| preventOverfitting | |
| randomNoise | |
| USER_BIAS_INDEX | |
| userVectors |
See Also