Trained trigger language model for sentence retrieval in QA: bridging the vocabulary gap.
Saeedeh MomtaziDietrich KlakowPublished in: CIKM (2011)
Keyphrases
- sentence retrieval
- language model
- language modeling
- passage retrieval
- retrieval model
- question answering
- out of vocabulary
- document retrieval
- query expansion
- n gram
- probabilistic model
- information retrieval
- language modeling approaches
- test collection
- ad hoc information retrieval
- pseudo relevance feedback
- speech recognition
- relevance model
- cross lingual
- vector space model
- retrieval effectiveness
- tf idf
- smoothing methods
- short queries
- query terms
- average precision
- document representation
- natural language