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Commodity Attributes Extracting in Chinese Shopping Reviews Based on Bi-LSTM and CRF

  

  1. (School of Automation, Hangzhou Dianzi University, Hangzhou 310018, China)
  • Received:2018-07-02 Online:2019-02-25 Published:2019-02-26

Abstract: With the improvement of the evaluation system of e-commerce system, the content of online shopping reviews plays a very important role in guiding consumers shopping. However, consumers cant find attributes and evaluations about attributes directly from a lot of reviews. Compared with constructing knowledge base and traditional machine learning methods, we need to summarize complex features and rules manually to extract attributes and attribute evaluations. This paper applies the method of Bi-directional Long Short-Term Memory (Bi-LSTM), Conditional Random Fields (CRF) and POS features to realize automatic extraction of commodity attributes and attributes evaluations in the reviews. This avoids summarizing the rules and has more domain universality. Through testing camera, menswear and child safety seat, the three commodity areas have obtained the macro precision of 86.74% and the macro recall of 85.89%.

Key words: Bi-LSTM, CRF, Chinese shopping reviews, POS features

CLC Number: