Retrieval, Re-ranking and Multi-task Learning for Knowledge-Base Question Answering.
Zhiguo WangPatrick NgRamesh NallapatiBing XiangPublished in: EACL (2021)
Keyphrases
- question answering
- multi task learning
- passage retrieval
- information retrieval
- knowledge base
- candidate answers
- multi task
- learning tasks
- question answering systems
- gaussian processes
- document retrieval
- information retrieval systems
- natural language processing
- natural language
- information extraction
- learning problems
- answer extraction
- theoretical analysis
- retrieval systems
- transfer learning
- image retrieval
- high order
- retrieval model
- expert systems
- knowledge acquisition
- query expansion
- ranked list
- keyword queries
- relevance feedback
- knowledge representation
- feature vectors
- qa systems
- language model
- relevance model
- machine learning algorithms
- test collection