Biomedical event causal relation extraction based on a knowledge-guided hierarchical graph network.
Beibei ZhangLishuang LiDingxin SongYang ZhaoPublished in: Soft Comput. (2023)
Keyphrases
- relation extraction
- information extraction
- entity extraction
- manually annotated
- automatic extraction
- domain specific
- named entities
- structured data
- named entity recognition
- expert systems
- question answering
- machine learning
- domain knowledge
- knowledge base
- background knowledge
- knowledge acquisition
- broad coverage
- co occurrence
- semantic role labeling
- high level