Persuasive, Authorative and Topical Answers for Complex Question Answering.
Leif AzzopardiMark BaillieIan RuthvenPublished in: TREC (2007)
Keyphrases
- question answering
- natural language questions
- question answering systems
- qa systems
- candidate answers
- answer extraction
- information retrieval
- answering questions
- question classification
- question answer pairs
- qa clef
- syntactic information
- information extraction
- natural language
- sentence retrieval
- cross language
- named entities
- passage retrieval
- natural language processing
- answer validation
- open domain question answering
- semantic roles
- correct answers
- relation extraction
- document retrieval
- search engine