Keyphrases
- information retrieval
- multi lingual
- multilingual information retrieval
- expressive power
- information retrieval systems
- search engine
- language model
- language independent
- language modeling
- vector space model
- information extraction
- structured queries
- information access
- information filtering
- databases
- query expansion
- language identification
- language processing
- document collections
- test collection
- information seeking
- retrieval effectiveness
- knowledge discovery
- question answering
- grammatical inference
- learning to rank
- arabic language
- document retrieval