Keyphrases
- information retrieval
- web documents
- document collections
- information retrieval systems
- text documents
- xml documents
- document analysis
- free text
- document classification
- document clustering
- relevant documents
- legal documents
- text analysis
- data sets
- vector space
- metadata
- vector space model
- multimedia documents
- keywords
- electronic documents
- retrieval systems
- search engine
- semantic relationships
- text categorization
- document structure
- information extraction