Keyphrases
- information retrieval
- document collections
- document clustering
- information retrieval systems
- web documents
- text documents
- relevant documents
- document retrieval
- keywords
- data sets
- legal documents
- text analysis
- vector space model
- xml documents
- free text
- digital libraries
- metadata
- document set
- multimedia documents
- document content
- database
- semantic information
- relevance feedback
- information extraction
- query terms
- document classification
- highly relevant
- electronic documents
- word spotting