Keyphrases
- document clustering
- clustering algorithm
- text mining
- document collections
- vector space model
- document representation
- document clusters
- topic extraction
- clustering method
- negative matrix factorization
- text documents
- topic detection
- cluster analysis
- ant based clustering
- k means
- document similarity
- information retrieval
- tolerance rough set
- information retrieval systems
- image retrieval
- knowledge base
- artificial intelligence