Joint Chinese Word Segmentation and Span-based Constituency Parsing

• URL: http://arxiv.org/abs/2211.01638v1
• Date: Thu, 3 Nov 2022 08:19:00 GMT
• Title: Joint Chinese Word Segmentation and Span-based Constituency Parsing
• Authors: Zhicheng Wang, Tianyu Shi, Cong Liu
• Abstract summary: This work proposes a method for joint Chinese word segmentation and Span-based Constituency Parsing by adding extra labels to individual Chinese characters on the parse trees. Through experiments, the proposed algorithm outperforms the recent models for joint segmentation and constituency parsing on CTB 5.1.
• Score: 11.080040070201608
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In constituency parsing, span-based decoding is an important direction. However, for Chinese sentences, because of their linguistic characteristics, it is necessary to utilize other models to perform word segmentation first, which introduces a series of uncertainties and generally leads to errors in the computation of the constituency tree afterward. This work proposes a method for joint Chinese word segmentation and Span-based Constituency Parsing by adding extra labels to individual Chinese characters on the parse trees. Through experiments, the proposed algorithm outperforms the recent models for joint segmentation and constituency parsing on CTB 5.1.

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