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Vietnamese Named Entity Recognition using Token Regular Expressions and Bidirectional Inference

10/18/2016

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by Phuong Le-Hong, et al.

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This paper describes an efficient approach to improve the accuracy of a named entity recognition system for Vietnamese. The approach combines regular expressions over tokens and a bidirectional inference method in a sequence labelling model. The proposed method achieves an overall F_1 score of 89.66 on a test set of an evaluation campaign, organized in late 2016 by the Vietnamese Language and Speech Processing (VLSP) community.

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