The effect of back-formulating questions in question answering evaluation.
Tetsuya SakaiYoshimi SaitoYumi IchimuraTomoharu KokubuMakoto KoyamaPublished in: SIGIR (2004)
Keyphrases
- question answering
- question answering systems
- natural language questions
- qa systems
- open domain question answering
- qa clef
- answering questions
- answer extraction
- candidate answers
- information extraction
- natural language processing
- information retrieval
- question classification
- question answer pairs
- natural language
- cross language
- named entities
- syntactic information
- semantic roles
- sentence retrieval
- evaluation method
- correct answers
- language modeling
- answer validation