Combining term-based and event-based matching for question answering.
Michael WiegandJochen L. LeidnerDietrich KlakowPublished in: SIGIR (2007)
Keyphrases
- question answering
- information retrieval
- natural language processing
- named entities
- natural language questions
- natural language
- information extraction
- cross language
- question classification
- open domain question answering
- qa clef
- syntactic information
- passage retrieval
- sentence retrieval
- answer validation
- qa systems
- question answering systems
- relation extraction
- query terms
- answering questions
- expert systems
- machine learning