Question Answering Challenge (QAC-1): An Evaluation of Question Answering Task at NTCIRWorkshop 3.
Jun-ichi FukumotoTsuneaki KatoFumito MasuiPublished in: NTCIR (2002)
Keyphrases
- test set
- question answering
- question answering systems
- passage retrieval
- natural language processing
- information retrieval
- natural language
- named entities
- information extraction
- cross language
- syntactic information
- qa clef
- relation extraction
- question classification
- open domain question answering
- candidate answers
- evaluation criteria
- semantic roles
- evaluation method
- document retrieval
- multi modal
- natural language questions
- expert systems