Keyphrases
- topic modeling
- negative matrix factorization
- topic models
- matrix factorization
- nonnegative matrix factorization
- collaborative filtering
- latent dirichlet allocation
- latent structure
- document clustering
- text mining
- sparse representation
- principal component analysis
- probabilistic latent semantic analysis
- text classification
- text documents
- pairwise
- spectral clustering
- pattern recognition
- latent topics
- document collections
- data mining
- image features
- probabilistic model
- bayesian networks
- training data
- information retrieval
- machine learning