Keyphrases
- information retrieval
- document collections
- document classification
- document retrieval
- free text
- metadata
- information retrieval systems
- xml documents
- printed documents
- relevant documents
- text documents
- document clustering
- document representation
- document content
- document processing
- vector space model
- license plate
- document set
- multi document summarization
- textual content
- time stamped
- machine learning
- keywords
- semantic information
- legal documents