Reinforced History Backtracking for Conversational Question Answering.
Minghui QiuXinjing HuangCen ChenFeng JiChen QuWei WeiJun HuangYin ZhangPublished in: AAAI (2021)
Keyphrases
- question answering
- natural language
- question classification
- information retrieval
- natural language processing
- qa clef
- cross language
- natural language questions
- passage retrieval
- open domain question answering
- information extraction
- relation extraction
- syntactic information
- multi modal
- named entities
- sentence retrieval
- question answering systems
- answer extraction
- search engine
- query expansion
- answer validation