Document-level Relation Extraction with Dual-tier Heterogeneous Graph.
Zhenyu ZhangBowen YuXiaobo ShuTingwen LiuHengzhu TangYubin WangLi GuoPublished in: COLING (2020)
Keyphrases
- relation extraction
- document level
- coreference resolution
- information extraction
- automatic extraction
- named entities
- domain specific
- semantic relations
- sentiment classification
- semantic features
- question answering
- sentence level
- query expansion
- structured data
- language model
- named entity recognition
- sentiment analysis
- natural language processing
- document retrieval
- noun phrases
- information retrieval
- co occurrence
- general purpose
- artificial intelligence