Refinement of Document Clustering by Using NMF.
Hiroyuki ShinnouMinoru SasakiPublished in: PACLIC (2007)
Keyphrases
- document clustering
- negative matrix factorization
- nonnegative matrix factorization
- text mining
- document collections
- clustering algorithm
- clustering method
- topic extraction
- document representation
- k means
- document clusters
- text documents
- databases
- pairwise constraints
- tolerance rough set
- ant based clustering
- topic modeling
- query expansion
- active learning
- information retrieval
- machine learning