Question Answering Challenge for Information Access Dialogue - Overview of NTCIR4 QAC2 Subtask.
Tsuneaki KatoJun-ichi FukumotoFumito MasuiPublished in: NTCIR (2004)
Keyphrases
- question answering
- information access
- information retrieval
- test collection
- natural language
- question answering systems
- cross language
- digital libraries
- information extraction
- information retrieval systems
- question classification
- cross language information retrieval
- text search
- natural language processing
- natural language questions
- search engine
- passage retrieval
- retrieval effectiveness
- user experience
- evaluation metrics
- information seeking
- syntactic information
- databases
- answer validation
- keyword queries
- text retrieval
- document collections
- query translation
- query expansion
- answer extraction
- active learning
- data mining