Sparse Matrix Factorization: Applications to Latent Semantic Indexing.
Erin MouldingRaymond J. SpiteriApril KontostathisPublished in: TREC (2009)
Keyphrases
- matrix factorization
- latent semantic indexing
- tensor factorization
- low rank
- collaborative filtering
- low rank approximation
- vector space
- singular value decomposition
- text retrieval
- recommender systems
- information retrieval
- missing data
- negative matrix factorization
- factorization methods
- nonnegative matrix factorization
- vector space model
- sparsity constraints
- high dimensional
- latent semantic analysis
- sparse coding
- sparse representation
- language model
- information extraction