Keyphrases
- semantic analysis
- document clustering
- natural language processing
- text mining
- natural language
- clustering algorithm
- text documents
- k means
- clustering method
- semantic information
- document collections
- syntactic analysis
- vector space model
- document clusters
- tf idf
- document representation
- question answering
- information extraction
- machine learning
- tolerance rough set
- text analysis
- cluster analysis
- knowledge base
- information retrieval