Challenge: Existing approaches to unsupervised Chinese word segmentation (CWS) are discriminative and generative, but they are non-trivial.
Approach: They propose a neural generative model for fully unsupervised Chinese word segmentation (CWS) their approach explicitly focuses on the segmental nature of Chinese, and preserves several properties of language models.
Outcome: The proposed model achieves competitive performance to the state-of-the-art models on four datasets from SIGHAN 2005 bakeoff.

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Segment, Mask, and Predict: Augmenting Chinese Word Segmentation with Self-Supervision (2021.emnlp-main)

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Challenge: Recent state-of-the-art (SOTA) effective neural network methods have been used in Chinese word segmentation (CWS) However, the robustness of the previous neural methods is limited by the large-scale annotated corpus.
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RethinkCWS: Is Chinese Word Segmentation a Solved Task? (2020.emnlp-main)

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Challenge: Recent years have seen remarkable success in the use of deep neural networks on Chinese word segmentation (CWS) however, the performance of CWS systems has gradually reached a plateau with the rapid development of deep networks.
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Improving Multi-Criteria Chinese Word Segmentation through Learning Sentence Representation (2023.findings-emnlp)

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Challenge: Recent Chinese word segmentation models tend to learn the segmentation knowledge through in-vocabulary words rather than understanding the meaning of the entire context.
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Is Word Segmentation Necessary for Deep Learning of Chinese Representations? (P19-1)

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Challenge: Using word-based models, we compare word-oriented models with char-based ones . word-driven models are more vulnerable to data sparsity and the presence of out-of-vocabulary words .
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Learning to Discover, Ground and Use Words with Segmental Neural Language Models (P19-1)

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Challenge: Existing models of word learning do not account for the long-range dependencies manifest in language and that are easily captured by recurrent neural networks.
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State-of-the-art Chinese Word Segmentation with Bi-LSTMs (D18-1)

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Challenge: A wide variety of neural-network architectures have been proposed for the task of Chinese word segmentation.
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CWSeg: An Efficient and General Approach to Chinese Word Segmentation (2023.acl-industry)

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Challenge: Existing methods for Chinese word segmentation have achieved state-of-the-art performance, but they pose challenges in the deployment.
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Unsupervised Chinese Word Segmentation with BERT Oriented Probing and Transformation (2022.findings-acl)

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Challenge: Existing methods for unsupervised Chinese word segmentation exploit shallow semantic information, which can miss important context.
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More than Text: Multi-modal Chinese Word Segmentation (2021.acl-short)

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Challenge: Currently, word segmentation is performed in many languages without word delimiters.
Approach: They propose to combine the multi-modality to perform Chinese word segmentation . they propose a time-dependent multi-module interactive model to integrate multi-modality information .
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Improved Unsupervised Chinese Word Segmentation Using Pre-trained Knowledge and Pseudo-labeling Transfer (2023.emnlp-main)

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Challenge: Existing approaches to unsupervised Chinese word segmentation require multiple inferences to perform word segmenting.
Approach: They propose a method that integrates the segmentation signal from an unsupervised language model to a pre-trained BERT classifier under a pseudo-labeling framework.
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