Transformational question-answering (TQA) system: IBM, Yorktown Heights.
Fred J. DamerauStanley R. PetrickM. PivovonskyWarren J. PlathPublished in: SIGART Newsl. (1982)
Keyphrases
- question answering
- information retrieval
- cross language
- natural language processing
- natural language
- named entities
- question classification
- syntactic information
- information extraction
- open domain question answering
- sentence retrieval
- qa clef
- question answering systems
- passage retrieval
- relation extraction
- semantic roles
- candidate answers
- machine learning
- test collection
- knowledge base
- relational databases