Keyphrases
- document clustering
- neural network
- text clustering
- clustering algorithm
- text documents
- text mining
- clustering method
- document collections
- vector space model
- document representation
- negative matrix factorization
- document clusters
- text categorization
- k means
- topic extraction
- topic detection
- topic models
- tolerance rough set
- k nearest neighbor
- pairwise constraints
- keywords
- text classification
- clustering quality
- image features
- clustering approaches
- data analysis
- similarity measure
- data mining