Viewing the Web as a Virtual Database for Question Answering.
Boris KatzSue FelshinJimmy LinGregory MartonPublished in: New Directions in Question Answering (2004)
Keyphrases
- question answering
- database
- question answering systems
- answering questions
- information retrieval
- question classification
- cross language
- information extraction
- natural language
- natural language processing
- named entities
- relation extraction
- databases
- syntactic information
- open domain question answering
- web documents
- qa clef
- relational databases
- question answer pairs
- passage retrieval
- data model
- natural language questions
- web pages
- information retrieval systems
- sentence retrieval
- metadata
- candidate answers
- answer validation
- qa systems
- textual entailment recognition
- semantic roles