Automatic Coupling of Answer Extraction and Information Retrieval.
Xuchen YaoBenjamin Van DurmePeter ClarkPublished in: ACL (2) (2013)
Keyphrases
- information retrieval
- question answering
- answer extraction
- open domain question answering
- information extraction
- qa clef
- document retrieval
- information retrieval systems
- document collections
- search engine
- retrieval model
- text retrieval
- query expansion
- language model
- learning to rank
- information access
- cross language
- tf idf
- collaborative filtering