Keyphrases
- information retrieval systems
- information retrieval
- metadata
- document collections
- document classification
- relevant documents
- document retrieval
- xml documents
- web documents
- legal documents
- keywords
- user queries
- xml format
- textual content
- text analysis
- vector space model
- similarity measure
- free text
- document clustering
- ranked list
- text retrieval
- semantic relationships
- information extraction
- multimedia documents
- retrieval systems
- expert finding
- text classification
- search engine