Overview of the TREC 2007 Question Answering Track.
Hoa Trang DangDiane KellyJimmy LinPublished in: TREC (2007)
Keyphrases
- question answering
- information retrieval
- natural language processing
- question classification
- natural language
- information extraction
- question answering systems
- qa clef
- passage retrieval
- cross language
- named entities
- answering questions
- relation extraction
- qa systems
- semantic roles
- syntactic information
- sentence retrieval
- answer validation
- machine learning