F-Score Driven Max Margin Neural Network for Named Entity Recognition in Chinese Social Media

Hangfeng He, Xu Sun


Abstract
We focus on named entity recognition (NER) for Chinese social media. With massive unlabeled text and quite limited labelled corpus, we propose a semi-supervised learning model based on B-LSTM neural network. To take advantage of traditional methods in NER such as CRF, we combine transition probability with deep learning in our model. To bridge the gap between label accuracy and F-score of NER, we construct a model which can be directly trained on F-score. When considering the instability of F-score driven method and meaningful information provided by label accuracy, we propose an integrated method to train on both F-score and label accuracy. Our integrated model yields 7.44% improvement over previous state-of-the-art result.
Anthology ID:
E17-2113
Volume:
Proceedings of the 15th Conference of the European Chapter of the Association for Computational Linguistics: Volume 2, Short Papers
Month:
April
Year:
2017
Address:
Valencia, Spain
Editors:
Mirella Lapata, Phil Blunsom, Alexander Koller
Venue:
EACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
713–718
Language:
URL:
https://aclanthology.org/E17-2113
DOI:
Bibkey:
Cite (ACL):
Hangfeng He and Xu Sun. 2017. F-Score Driven Max Margin Neural Network for Named Entity Recognition in Chinese Social Media. In Proceedings of the 15th Conference of the European Chapter of the Association for Computational Linguistics: Volume 2, Short Papers, pages 713–718, Valencia, Spain. Association for Computational Linguistics.
Cite (Informal):
F-Score Driven Max Margin Neural Network for Named Entity Recognition in Chinese Social Media (He & Sun, EACL 2017)
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PDF:
https://aclanthology.org/E17-2113.pdf