A Unified MRC Framework for Named Entity Recognition.

Xiaoya Li Jingrong Feng Yuxian Meng Qinghong Han Fei Wu Jiwei Li

Published in: ACL (2020)

Keyphrases

named entity recognition
information extraction
named entities
natural language processing
data sets
prior knowledge
question answering
conditional random fields
text summarization
decision trees
image segmentation
feature extraction
semi supervised
maximum likelihood
maximum entropy classifier