DefScriber: a hybrid system for definitional QA.
Sasha Blair-GoldensohnKathleen R. McKeownAndrew Hazen SchlaikjerPublished in: SIGIR (2003)
Keyphrases
- question answering
- qa systems
- information retrieval
- question classification
- natural language
- information extraction
- open domain question answering
- qa clef
- candidate answers
- cross language
- natural language processing
- open domain
- syntactic information
- artificial neural networks
- question answering systems
- passage retrieval
- expert systems
- hybrid systems
- evaluation methodology
- computer vision
- answer extraction
- question answer
- pattern matching
- case study
- multimedia
- evolutionary algorithm
- genetic algorithm
- machine learning