RethinkCWS: Is Chinese Word Segmentation a Solved Task?

• URL: http://arxiv.org/abs/2011.06858v2
• Date: Wed, 9 Dec 2020 04:48:04 GMT
• Title: RethinkCWS: Is Chinese Word Segmentation a Solved Task?
• Authors: Jinlan Fu, Pengfei Liu, Qi Zhang, Xuanjing Huang
• Abstract summary: The performance of the Chinese Word (CWS) systems has gradually reached a plateau with the rapid development of deep neural networks. In this paper, we take stock of what we have achieved and rethink what's left in the CWS task.
• Score: 81.11161697133095
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The performance of the Chinese Word Segmentation (CWS) systems has gradually reached a plateau with the rapid development of deep neural networks, especially the successful use of large pre-trained models. In this paper, we take stock of what we have achieved and rethink what's left in the CWS task. Methodologically, we propose a fine-grained evaluation for existing CWS systems, which not only allows us to diagnose the strengths and weaknesses of existing models (under the in-dataset setting), but enables us to quantify the discrepancy between different criterion and alleviate the negative transfer problem when doing multi-criteria learning. Strategically, despite not aiming to propose a novel model in this paper, our comprehensive experiments on eight models and seven datasets, as well as thorough analysis, could search for some promising direction for future research. We make all codes publicly available and release an interface that can quickly evaluate and diagnose user's models: https://github.com/neulab/InterpretEval.

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