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Question Classification Based on Hybrid Neural Network Model

  

  1. (1. School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;
    2. Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;
    3. Key Laboratory of Technology in Geo-Spatial Information Processing and Application System,
    Chinese Academy of Sciences, Beijing 100190, China)
  • Received:2018-03-09 Online:2018-09-29 Published:2018-09-30

Abstract: The automatic question answering system gives fast and accurate answers to the questions proposed by the users in natural language, arousing widespread concern in academia and industry. By automatically determining the type of question, question classification task is of great significance to improve the accuracy of the question answering system. Based on the contextual information of the question and answer, combined with the respective advantages of convolutional neural networks and recurrent neural networks, this paper proposes a hybrid deep learning model. In addition, in order to strengthen the representation capacity of the question, this model adopts attention mechanism and enhances the generalization ability of the model. In this paper, we conduct a comparative experiment on 360 QA datasets, results show that this model has improved 1.6%~5.6% compared with the traditional method.

Key words:  question classification, joint representation, deep learning, attention mechanism

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