Stability of topic modeling via matrix factorization.
Mark BelfordBrian Mac NameeDerek GreenePublished in: Expert Syst. Appl. (2018)
Keyphrases
- matrix factorization
- topic modeling
- collaborative filtering
- topic models
- recommender systems
- negative matrix factorization
- low rank
- nonnegative matrix factorization
- factorization methods
- latent dirichlet allocation
- missing data
- text mining
- factor analysis
- latent topics
- probabilistic latent semantic analysis
- information retrieval
- text classification
- latent semantic analysis
- text categorization
- generative model
- text documents
- co occurrence
- principal component analysis
- information extraction
- prior knowledge
- latent factors
- clustering algorithm