Using the Hammer Only on Nails: A Hybrid Method for Evidence Retrieval for Question Answering.
Zhengzhong LiangYiyun ZhaoMihai SurdeanuPublished in: CoRR (2020)
Keyphrases
- question answering
- hybrid method
- passage retrieval
- information retrieval
- question answering systems
- sentence retrieval
- document retrieval
- information extraction
- natural language
- answer extraction
- question classification
- natural language questions
- natural language processing
- hybrid algorithm
- information retrieval systems
- named entities
- qa clef
- syntactic information
- cross language
- support vector machine
- answer validation
- semantic roles
- candidate answers
- test collection
- query expansion
- relevance feedback
- speech transcripts
- audio visual
- data mining
- user queries
- answering questions
- search engine