Deep Learning for Chinese Word Segmentation and POS Tagging

This study explores the feasibility of performing Chinese word segmentation (CWS) and POS tagging by deep learning.We try to avoid task-specific feature engineering, and use deep layers of neural networks to discover relevant features to the tasks.We leverage large-scale unlabeled data to improve internal representation of Chinese characters, and use these improved representations to enhance supervised word segmentation and POS tagging models.Our networks achieved close to state-of-theart performance with minimal computational cost.We also describe a perceptron-style algorithm for training the neural networks, as an alternative to maximum-likelihood method, to speed up the training process and make the learning algorithm easier to be implemented.