Overview of the TREC 2005 Question Answering Track.
Ellen M. VoorheesHoa Trang DangPublished in: TREC (2005)
Keyphrases
- question answering
- information extraction
- information retrieval
- question classification
- natural language
- natural language processing
- cross language
- passage retrieval
- relation extraction
- syntactic information
- qa clef
- natural language questions
- answer validation
- question answering systems
- semantic roles
- candidate answers
- answer extraction
- answering questions
- retrieval effectiveness
- test collection