Keyphrases
- document clustering
- document collections
- clustering algorithm
- text mining
- topic extraction
- text documents
- document representation
- clustering method
- vector space model
- negative matrix factorization
- document clusters
- k means
- topic detection
- databases
- pairwise constraints
- cluster analysis
- tolerance rough set
- image classification
- information extraction
- feature space
- document corpus
- multimedia
- ant based clustering
- artificial intelligence