An evaluation of question answering challenge (QAC-1) at the NTCIR workshop 3.
Jun-ichi FukumotoTsuneaki KatoFumito MasuiPublished in: SIGIR Forum (2004)
Keyphrases
- question answering
- question answering systems
- natural language processing
- cross language
- question classification
- information retrieval
- natural language
- passage retrieval
- named entities
- syntactic information
- natural language questions
- evaluation metrics
- qa clef
- evaluation method
- relation extraction
- information extraction
- evaluation criteria
- semantic roles
- answer validation
- cross language information retrieval
- open domain question answering