A Data Driven Approach to Query Expansion in Question Answering
Leon DerczynskiJun WangRobert J. GaizauskasMark A. GreenwoodPublished in: CoRR (2012)
Keyphrases
- question answering
- query expansion
- information retrieval
- passage retrieval
- information retrieval systems
- retrieval effectiveness
- language model
- language modeling
- relevance feedback
- natural language processing
- sentence retrieval
- pseudo relevance feedback
- cross language
- relevant documents
- named entities
- information extraction
- natural language
- text retrieval
- query terms
- retrieval model
- retrieved documents
- text mining
- information access
- retrieval systems