Predicate constraints based question answering over knowledge graph.
Sangjin ShinXiongnan JinJooik JungKyong-Ho LeePublished in: Inf. Process. Manag. (2019)
Keyphrases
- question answering
- information extraction
- natural language
- qa clef
- question classification
- question answering systems
- knowledge base
- natural language processing
- information retrieval
- passage retrieval
- cross language
- domain knowledge
- named entities
- relation extraction
- knowledge representation
- sentence retrieval
- natural language questions
- syntactic information
- expert systems
- answer extraction
- answer validation
- knowledge sources
- background knowledge
- semantic roles
- candidate answers
- data mining