C# Class MyMediaLite.AttrToFactor.BPRMF_ItemMappingKNN

BPR-MF with item mapping learned by kNN

Literature: Zeno Gantner, Lucas Drumond, Christoph Freudenthaler, Steffen Rendle, Lars Schmidt-Thieme: Learning Attribute-to-Feature Mappings for Cold-Start Recommendations. ICDM 2011. http://www.ismll.uni-hildesheim.de/pub/pdfs/Gantner_et_al2010Mapping.pdf This recommender does NOT support incremental updates.

Inheritance: BPRMF_ItemMapping

Exibir arquivo Open project: zenogantner/MML-KDD

Public Methods

Method	Description
LearnAttributeToFactorMapping ( ) : void
ToString ( ) : string

Protected Methods

Method	Description
__MapToLatentFactorSpace ( int item_id ) : double[]	map to latent factor space (actual function)

Method Details

LearnAttributeToFactorMapping() public method

public LearnAttributeToFactorMapping ( ) : void
return	void

ToString() public method

public ToString ( ) : string
return	string

__MapToLatentFactorSpace() protected method

map to latent factor space (actual function)

protected __MapToLatentFactorSpace ( int item_id ) : double[]
item_id	int
return	double[]