Multi-grained unsupervised evidence retrieval for question answering.
Hao YouPublished in: Neural Comput. Appl. (2023)
Keyphrases
- question answering
- passage retrieval
- information retrieval
- sentence retrieval
- question answering systems
- information extraction
- question classification
- natural language processing
- answer extraction
- document retrieval
- relevance feedback
- image retrieval
- natural language
- cross language
- query expansion
- named entities
- information retrieval systems
- semi supervised
- qa clef
- syntactic information
- open domain question answering
- relation extraction
- retrieval model
- retrieval systems
- test collection
- speech transcripts
- novelty detection
- answer validation
- search engine