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ICSH 2018: LSTM based Sentiment Analysis for Patient Experience Narratives in E-survey Tools

  • Chenxi Xia
  • Dong Zhao
  • Jing Wang
  • Jing Liu
  • Jingdong MaEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10983)

Abstract

Background: Analysis of patient experience narratives is helpful to improve care service and to promote patient satisfaction. As more and more E-survey tools went on line, a huge amount of patient comments has become a challenge to analysts. Sentiment analysis is a fully explored machine learning method to classify texts according their sentimental orientation. However, it is seldom applied to the analysis of patient comments, especially in China. Objectives: This paper aims to test the performance of the classical sentiment analysis methods and find an applicable solution of Chinese patient experience narratives analysis. Data: 20,000 patient experience narratives are collected from two hospital’s E-survey tools, a mobile patient follow-up system and a WeChat App of patient comments. Methods: Five machine learning methods, Support Vector Machine (SVM), Random Forests (RF), Gradient Boost Decision Tree (GBDT), XGBoost and Long Short-Term Memory (LSTM), are used to explore the sentiment analysis performance of Chinese patient comments. χ2 statistics is used for feature selection. And Skip-gram model is used for word-embedding. Results: The experiment results showed that LSTM achieved much better performance than SVM did. The F-Measure values of LSTM for positive category and negative category are both 98.87, which is better than other traditional machine learning methods. Conclusion: The result of this paper suggests that LSTM based sentiment analysis is a practical method to exploit the ever-increasing patient experience narratives.

Keywords

Patient experience Sentiment analysis Free text Electronic survey 

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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Chenxi Xia
    • 1
  • Dong Zhao
    • 1
  • Jing Wang
    • 1
  • Jing Liu
    • 1
  • Jingdong Ma
    • 1
    Email author
  1. 1.School of Medicine and Health Management, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina

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