Keyphrases
- information retrieval
- english language
- cross language retrieval
- vector space model
- language learning
- cross language ir
- language model
- information retrieval systems
- linguistic analysis
- machine translation
- search engine
- cross language
- information access
- query expansion
- test collection
- document collections
- natural language
- relevance feedback
- retrieval engine
- information extraction
- retrieval systems
- computer assisted language learning
- foreign language
- arabic language
- answer questions
- pseudo relevance feedback
- cross language information retrieval
- question answering
- retrieval effectiveness
- text mining
- retrieval model