A comparative assessment of answer quality on four question answering sites.
Pnina FichmanPublished in: J. Inf. Sci. (2011)
Keyphrases
- question answering
- question classification
- natural language questions
- question answering systems
- answer validation
- answering questions
- candidate answers
- qa systems
- answer extraction
- natural language
- information extraction
- natural language processing
- passage retrieval
- syntactic information
- information retrieval
- cross language
- named entities
- question answer pairs
- sentence retrieval
- qa clef
- multi modal
- semantic roles
- relation extraction
- automatically generated
- document retrieval
- language model
- information retrieval systems