An Intelligent Question and Answering System for Dental Healthcare

  • Yan Jiang
  • Yueshen XuEmail author
  • Jin Guo
  • Yaning Liu
  • Rui Li
Conference paper
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 303)


The intelligent question and answering system is an artificial intelligence product that combines natural language processing technology and information retrieval technology. This paper designs and implements a retrieval-based intelligent question and answering system for closed domain, and focuses on researching and improving related algorithms. The intelligent question and answering system mainly includes three modules: classifier, Q&A system and Chatbots API. This paper focuses on the classifier module, and designs and implements a classifier based on neural network technology, mainly involving word vector, bidirectional long short-term memory (Bi-LSTM), and attention mechanism. The word vector technology is derived from the word2vec tool proposed by Google in 2013. This paper uses the skip-gram model in word2vec.The Q&A system mainly consists of two modules: semantic analysis and retrieval. The semantic analysis mainly includes techniques such as part-of-speech tagging and dependency parsing. The retrieval mainly relates to technologies such as indexing and search. The Chatbots API calls the API provided by Turing Robotics. The intelligent question and answering system designed and implemented in this paper has been put into use, and the user experience is very good.


Question and answering Word2vec Skip-gram Bi-LSTM Attention mechanism Part-of-speech 



This paper is supported by Fundamental Research Fund for Central Universities (No. JBX171007), National Natural Science Fund of China (No. 61702391), and Shaanxi Provincial Natural Science Foundation (No. 2018JQ6050).


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Copyright information

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2019

Authors and Affiliations

  • Yan Jiang
    • 1
  • Yueshen Xu
    • 1
    Email author
  • Jin Guo
    • 1
  • Yaning Liu
    • 1
  • Rui Li
    • 1
  1. 1.School of Computer Science and TechnologyXidian UniversityXi’anChina

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