A Hierarchical Approach for Joint Extraction of Entities and Relations.
Siqi XiaoQi ZhangJinquan SunYu WangLei ZhangPublished in: ECIR (1) (2021)
Keyphrases
- entity extraction
- hierarchical structure
- information extraction
- coarse to fine
- semantic relations
- named entities
- automatic extraction
- natural language
- database
- hierarchical model
- temporal relations
- hierarchical classification
- hierarchically organized
- pairwise
- expert systems
- knowledge sources
- genetic algorithm
- concept hierarchy
- conceptual graphs
- relation extraction
- joint estimation
- real time