Towards a Theory of Question-Answering Interfaces to Databases.
Ana-Maria PopescuOren EtzioniHenry A. KautzPublished in: New Directions in Question Answering (2003)
Keyphrases
- question answering
- databases
- natural language processing
- information retrieval
- named entities
- question classification
- information extraction
- passage retrieval
- qa clef
- open domain question answering
- natural language
- syntactic information
- natural language questions
- database
- cross language
- question answering systems
- sentence retrieval
- query interface
- relation extraction
- data model
- candidate answers
- database systems
- semantic roles
- answering questions