Question Answering with LCC's CHAUCER-2 at TREC 2007.
Andrew HicklKirk RobertsBryan RinkJeremy BensleyTobias JungenYing ShiJohn WilliamsPublished in: TREC (2007)
Keyphrases
- question answering
- information extraction
- natural language processing
- natural language
- information retrieval
- natural language questions
- question answering systems
- cross language
- passage retrieval
- answer validation
- sentence retrieval
- question classification
- qa systems
- named entities
- semantic roles
- relation extraction
- qa clef
- open domain question answering
- candidate answers
- language model
- text mining