Keyphrases
- information retrieval
- information retrieval systems
- learning to rank
- information extraction
- document retrieval
- information filtering
- language modeling
- retrieval effectiveness
- retrieval systems
- test collection
- document collections
- query expansion
- text mining
- multiscale
- search engine
- vector space model
- text processing
- databases
- term weighting
- relevant documents
- knowledge discovery
- website
- metadata
- information systems
- machine learning