Difference between revisions of "Singular value decomposition"

From RecSysWiki
Jump to navigation Jump to search
Line 2: Line 2:
  
 
== SVD in Math ==
 
== SVD in Math ==
The traditional '''SVD''' can also be used as collaborative filtering algorithm. It's also named Latent Semantic Indexing in IR.
+
The traditional '''SVD''' can also be used as collaborative filtering algorithm. It's also named Latent Semantic Indexing(LSI) in IR.
  
* [http://en.wikipedia.org/wiki/Singular_value_decomposition]
+
* Wikipedia page about SVD: http://en.wikipedia.org/wiki/Singular_value_decomposition
* [http://en.wikipedia.org/wiki/Latent_semantic_indexing]
+
* Wikipedia page about LSI: http://en.wikipedia.org/wiki/Latent_semantic_indexing
  
 
== Matrix Factorization ==
 
== Matrix Factorization ==
 
Please refer to [[Matrix factorization]]
 
Please refer to [[Matrix factorization]]

Revision as of 21:00, 11 November 2011

SVD refers to singular value decomposition in linear algebra. However, in the field of collaborative filtering, SVD often means Matrix factorization.

SVD in Math

The traditional SVD can also be used as collaborative filtering algorithm. It's also named Latent Semantic Indexing(LSI) in IR.

Matrix Factorization

Please refer to Matrix factorization