One Search Engine or Two for Question-Answering.
John M. PragerEric W. BrownDragomir R. RadevKrzysztof CzubaPublished in: TREC (2000)
Keyphrases
- question answering
- search engine
- information retrieval
- natural language processing
- information extraction
- web search engines
- web search
- question answering systems
- question classification
- natural language
- syntactic information
- named entities
- natural language questions
- qa systems
- qa clef
- query logs
- cross language
- candidate answers
- relation extraction
- user queries
- keywords
- semantic roles
- data mining
- answer validation
- query suggestion
- automatically generated
- query expansion
- artificial intelligence