Package MyMediaLite.Data

This namespace contains MyMediaLite's principal data structures, which are used e.g. to store the interaction data that is used to train personalized recommenders. More...

Classes
class	CombinedRatings
	Combine two IRatings objects More...
class	DataSet
	Abstract dataset class that implements some common functions More...
class	Extensions
	Extension methods for dataset statistics More...
interface	IDataSet
	Interface for different kinds of collaborative filtering data sets More...
class	IdentityMapping
	Identity mapping for entity IDs: Every original ID is mapped to itself More...
interface	IMapping
	Interface to map external entity IDs to internal ones to ensure that there are no gaps in the numbering More...
interface	IPosOnlyFeedback
	Interface for implicit, positive-only user feedback More...
interface	IRatings
	Interface for rating datasets More...
interface	ISplit
	generic dataset splitter interface More...
interface	ITimedDataSet
	interface for data sets with time information More...
interface	ITimedRatings
	Interface for rating datasets with time information More...
class	KDDCupItems
	Represents KDD Cup 2011 items like album, track, artist, or genre More...
class	Mapping
	Class to map external entity IDs to internal ones to ensure that there are no gaps in the numbering More...
class	PosOnlyFeedback
	Data structure for implicit, positive-only user feedback More...
class	PosOnlyFeedbackCrossValidationSplit
	K-fold cross-validation split for item prediction from implicit feedback More...
class	PosOnlyFeedbackSimpleSplit
	simple split for item prediction from implicit feedback More...
class	RatingCrossValidationSplit
	k-fold cross-validation split for rating prediction More...
class	Ratings
	Data structure for storing ratings More...
class	RatingScale
	Class containing information about the rating scale of a data set: valid rating values, minimum/maximum rating. More...
class	RatingsChronologicalSplit
	chronological split for rating prediction More...
class	RatingsPerUserChronologicalSplit
	per-user chronological split for rating prediction More...
class	RatingsProxy
	Data structure that allows access to selected entries of a rating data structure More...
class	RatingsSimpleSplit
	simple split for rating prediction More...
class	StaticByteRatings
	Array-based storage for rating data. More...
class	StaticRatings
	Array-based storage for rating data. More...
class	TimedRatings
	Data structure for storing ratings with time information More...
class	TimedRatingsProxy
	Data structure that allows access to selected entries of a timed rating data structure More...

Enumerations
enum	RatingType : byte { BYTE, FLOAT, DOUBLE }
	Represent different numerical types that are used to store the ratings More...

Detailed Description

This namespace contains MyMediaLite's principal data structures, which are used e.g. to store the interaction data that is used to train personalized recommenders.

Enumeration Type Documentation

enum RatingType : byte

Represent different numerical types that are used to store the ratings

Enumerator
BYTE	byte (1 byte per rating)
FLOAT	float (4 bytes per rating)
DOUBLE	double (8 bytes per rating)