Complex Factoid Question Answering with a Free-Text Knowledge Graph.
Chen ZhaoChenyan XiongXin QianJordan L. Boyd-GraberPublished in: WWW (2020)
Keyphrases
- question answering
- free text
- information extraction
- natural language processing
- structured data
- clinical guidelines
- information retrieval
- named entities
- passage retrieval
- natural language
- semi structured
- text mining
- domain knowledge
- open domain
- question answering systems
- relation extraction
- knowledge representation
- cross language
- machine learning
- knowledge base
- syntactic information
- qa systems
- question classification
- qa clef
- semantic roles
- web documents
- wordnet
- language model
- document retrieval
- metadata