A Heuristic for Reducing Fill-In in Sparse Matrix Factorization.
Thang Nguyen BuiCurt JonesPublished in: PPSC (1993)
Keyphrases
- matrix factorization
- tensor factorization
- collaborative filtering
- low rank matrix
- low rank
- recommender systems
- latent factors
- missing data
- negative matrix factorization
- factor analysis
- sparse non negative
- nonnegative matrix factorization
- stochastic gradient descent
- factorization methods
- data sparsity
- data matrix
- sparse representation
- dictionary learning
- sparse coding
- item recommendation
- personalized ranking
- probabilistic matrix factorization
- feature space
- implicit feedback
- convex optimization
- high dimensional