Qualitative Dimensions in Question Answering: Extending the Definitional QA Task.
Lucian Vlad LitaAndrew Hazen SchlaikjerWeiChang HongEric NybergPublished in: AAAI (2005)
Keyphrases
- question answering
- qa systems
- natural language processing
- information extraction
- natural language
- passage retrieval
- information retrieval
- qa clef
- natural language questions
- question classification
- cross language
- open domain question answering
- answer extraction
- question answering systems
- named entities
- candidate answers
- syntactic information
- answer validation
- open domain
- relation extraction