TREC 2002 QA at BBN: Answer Selection and Confidence Estimation.
Jinxi XuAna LicuananJonathan MayScott MillerRalph M. WeischedelPublished in: TREC (2002)
Keyphrases
- question answering
- question answering systems
- question classification
- qa systems
- natural language questions
- answer validation
- candidate answers
- answer extraction
- information retrieval
- qa clef
- open domain
- estimation algorithm
- test collection
- bayesian belief networks
- high confidence
- question answer
- open domain question answering
- selection criterion
- cross language
- natural language processing
- retrieval effectiveness
- information extraction
- question answer pairs
- natural language
- confidence level
- passage retrieval
- accurate estimation
- density estimation
- probabilistic model