2017

Character-based Joint Segmentation and POS Tagging for Chinese using Bidirectional RNN-CRF

Shao, Yan, Hardmeier, Christian, Tiedemann, Jörg et al.

Understand

We present a character-based model for joint segmentation and POS tagging for Chinese.

  • The bidirectional RNN-CRF architecture for general sequence tagging is adapted and applied with novel vector representations of Chinese characters that capture rich contextual information and lower-than-character level features.
  • The proposed model is extensively evaluated and compared with a state-of-the-art tagger respectively on CTB5, CTB9 and UD Chinese.
  • The experimental results indicate that our model is accurate and robust across datasets in different sizes, genres and annotation schemes.

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