Structured retrieval for question answering.
Matthew W. BilottiPaul OgilvieJamie CallanEric NybergPublished in: SIGIR (2007)
Keyphrases
- question answering
- passage retrieval
- information retrieval
- sentence retrieval
- question answering systems
- answer extraction
- question classification
- information extraction
- information retrieval systems
- cross language
- natural language
- natural language processing
- document retrieval
- qa clef
- syntactic information
- relation extraction
- test collection
- natural language questions
- open domain question answering
- qa systems
- answering questions
- answer validation
- retrieval model
- named entities
- retrieval systems
- query expansion
- structured data
- language model
- speech transcripts
- text retrieval
- visual features
- relevance feedback
- artificial intelligence