First results on uniqueness of sparse non-negative matrix factorization.
Fabian J. TheisKurt StadlthannerToshihisa TanakaPublished in: EUSIPCO (2005)
Keyphrases
- sparse non negative
- matrix factorization
- collaborative filtering
- sparse coding
- nonnegative matrix factorization
- recommender systems
- missing data
- low rank
- negative matrix factorization
- factorization methods
- stochastic gradient descent
- multiscale
- latent factors
- item recommendation
- linear combination
- natural images
- factor analysis
- text mining
- latent factor models