Using negative voting to diversify answers in non-factoid question answering.
Palakorn AchananuparpChristopher C. YangXin ChenPublished in: CIKM (2009)
Keyphrases
- question answering
- qa systems
- natural language questions
- question answering systems
- candidate answers
- answer extraction
- question answer pairs
- answering questions
- information extraction
- syntactic information
- question classification
- information retrieval
- natural language processing
- qa clef
- passage retrieval
- named entities
- natural language
- answer validation
- evaluation methodology
- relation extraction
- sentence retrieval
- open domain question answering
- open domain
- test set
- information retrieval systems
- textual entailment recognition