HiTRANS: A Hierarchical Transformer Network for Nested Named Entity Recognition.
Zhiwei YangJing MaHechang ChenYunke ZhangYi ChangPublished in: EMNLP (Findings) (2021)
Keyphrases
- named entity recognition
- named entities
- information extraction
- natural language processing
- conditional random fields
- maximum entropy
- text summarization
- annotated corpus
- hand coded
- distribution network
- relation extraction
- semi supervised
- hierarchical structure
- information retrieval
- classifier ensemble
- proper names
- chinese named entity recognition
- markov random field
- co occurrence
- text mining
- supervised learning
- object recognition
- knowledge base