mlpack::cf Namespace Reference

Collaborative filtering. More...

Classes
class	AverageInterpolation
	This class performs average interpolation to generate interpolation weights for neighborhood-based collaborative filtering. More...
class	BatchSVDPolicy
	Implementation of the Batch SVD policy to act as a wrapper when accessing Batch SVD from within CFType. More...
class	BiasSVDPolicy
	Implementation of the Bias SVD policy to act as a wrapper when accessing Bias SVD from within CFType. More...
class	CFModel
	The model to save to disk. More...
class	CFType
	This class implements Collaborative Filtering (CF). More...
class	CFWrapper
	The CFWrapper class wraps the functionality of all CF types. More...
class	CFWrapperBase
	The CFWrapperBase class provides a unified interface that can be used by the CFModel class to interact with all different CF types at runtime. More...
class	CombinedNormalization
	This normalization class performs a sequence of normalization methods on raw ratings. More...
class	CosineSearch
	Nearest neighbor search with cosine distance. More...
class	DummyClass
	This class acts as a dummy class for passing as template parameter. More...
class	ItemMeanNormalization
	This normalization class performs item mean normalization on raw ratings. More...
class	LMetricSearch
	Nearest neighbor search with L_p distance. More...
class	NMFPolicy
	Implementation of the NMF policy to act as a wrapper when accessing NMF from within CFType. More...
class	NoNormalization
	This normalization class doesn't perform any normalization. More...
class	OverallMeanNormalization
	This normalization class performs overall mean normalization on raw ratings. More...
class	PearsonSearch
	Nearest neighbor search with pearson distance (or furthest neighbor search with pearson correlation). More...
class	RandomizedSVDPolicy
	Implementation of the Randomized SVD policy to act as a wrapper when accessing Randomized SVD from within CFType. More...
class	RegressionInterpolation
	Implementation of regression-based interpolation method. More...
class	RegSVDPolicy
	Implementation of the Regularized SVD policy to act as a wrapper when accessing Regularized SVD from within CFType. More...
class	SimilarityInterpolation
	With SimilarityInterpolation, interpolation weights are based on similarities between query user and its neighbors. More...
class	SVDCompletePolicy
	Implementation of the SVD complete incremental policy to act as a wrapper when accessing SVD complete decomposition from within CFType. More...
class	SVDIncompletePolicy
	Implementation of the SVD incomplete incremental to act as a wrapper when accessing SVD incomplete incremental from within CFType. More...
class	SVDPlusPlusPolicy
	Implementation of the SVDPlusPlus policy to act as a wrapper when accessing SVDPlusPlus from within CFType. More...
class	SVDWrapper
	This class acts as the wrapper for all SVD factorizers which are incompatible with CF module. More...
class	UserMeanNormalization
	This normalization class performs user mean normalization on raw ratings. More...
class	ZScoreNormalization
	This normalization class performs z-score normalization on raw ratings. More...

Typedefs
using	EuclideanSearch = LMetricSearch< 2 >
typedef SVDWrapper< DummyClass >	ArmaSVDFactorizer
	add simple typedefs

Enumerations
enum	NeighborSearchTypes { COSINE_SEARCH, EUCLIDEAN_SEARCH, PEARSON_SEARCH }
	NeighborSearchTypes contains the set of NeighborSearchPolicy classes that are usable by CFModel at prediction time.
enum	InterpolationTypes { AVERAGE_INTERPOLATION, REGRESSION_INTERPOLATION, SIMILARITY_INTERPOLATION }
	InterpolationTypes contains the set of InterpolationPolicy classes that are usable by CFModel at prediction time.

Functions
template<typename DecompositionPolicy >
CFWrapperBase *	TrainHelper (const DecompositionPolicy &decomposition, const CFModel::NormalizationTypes normalizationType, const arma::mat &data, const size_t numUsersForSimilarity, const size_t rank, const size_t maxIterations, const double minResidue, const bool mit)
template<typename NeighborSearchPolicy , typename CFType >
void	PredictHelper (CFType &cf, const InterpolationTypes interpolationType, const arma::Mat< size_t > &combinations, arma::vec &predictions)
template<typename NeighborSearchPolicy , typename CFType >
void	GetRecommendationsHelper (CFType &cf, const InterpolationTypes interpolationType, const size_t numRecs, arma::Mat< size_t > &recommendations, const arma::Col< size_t > &users)
template<typename NeighborSearchPolicy , typename CFType >
void	GetRecommendationsHelper (CFType &cf, const InterpolationTypes interpolationType, const size_t numRecs, arma::Mat< size_t > &recommendations)
template<typename DecompositionPolicy >
CFWrapperBase *	InitializeModelHelper (CFModel::NormalizationTypes normalizationType)
CFWrapperBase *	InitializeModel (CFModel::DecompositionTypes decompositionType, CFModel::NormalizationTypes normalizationType)
template<typename DecompositionPolicy , typename Archive >
void	SerializeHelper (Archive &ar, CFWrapperBase *cf, CFModel::NormalizationTypes normalizationType)

Detailed Description

Collaborative filtering.