Keyphrases
- information retrieval
- search engine
- information extraction
- theoretical basis
- language modeling
- general theory
- text mining
- information retrieval systems
- probability ranking principle
- theoretical framework
- language model
- image sequences
- document collections
- question answering
- relevance feedback
- starting point
- retrieval model
- information seeking
- digital libraries
- information access
- vector space model
- similarity measure
- language processing
- real world