Journal of Systems Engineering and Electronics ›› 2025, Vol. 36 ›› Issue (2): 436-445.doi: 10.23919/JSEE.2024.000054

• SYSTEMS ENGINEERING • Previous Articles    

Knowledge map of online public opinions for emergencies

Shuang GUAN1(), Zihan FANG2(), Changfeng WANG1,*()   

  1. 1 School of Economics and Management, Beijing University of Posts and Telecommunications, Beijing 100876, China
    2 School of Physics and Electronic Information, Anhui Normal University, Wuhu 241002, China
  • Received:2023-12-08 Online:2025-04-18 Published:2025-05-20
  • Contact: Changfeng WANG E-mail:guanshuang0509@bupt.edu.cn;fzh@ahnu.edu.cn;wangcf@bupt.edu.cn
  • About author:
    GUAN Shuang was born in 1985. She received her B.S. degree from Harbin Normal University and M.E degree from Beijing Institute of Technology in 2008 and 2010. She is now pursuing her Ph.D. degree at the School of Economics and Management, Beijing University of Posts and Telecommunications. Her research interests are project management, data mining and intelligent emergency management. E-mail: guanshuang0509@bupt.edu.cn

    FANG Zihan was born in 1999. He received his bachelor’s degree from Huainan Normal University in 2022. He is currently pursuing his master’s degree at the School of Physics and Electronic Information, Anhui Normal University. His research interest is artificial intelligence image generation. E-mail: fzh@ahnu.edu.cn

    WANG Changfeng was born in 1965. He received his B.E. degree from China University of Petroleum (East China), and B.S. degree from China University of Petroleum (Beijing) in 1989 and 2001. In 2004 he received his Ph.D. degree in management (project management discipline) from University of Science and Technology of China and Chinese Academy of Sciences. His main research focuses on project management and intelligent emergency management. E-mail: wangcf@bupt.edu.cn
  • Supported by:
    This work was supported by the National Social Science Foundation Major Project (22&ZD135) and the National Social Science Fund National Emergency Management System Construction Research Project (20VYJ061).

Abstract:

With the popularization of social media, public opinion information on emergencies spreads rapidly on the Internet, the impact of negative public opinions on an event has become more significant. Based on the organizational form of public opinion information, the knowledge graph is used to construct the knowledge base of public opinion risk cases on the emergency network. The emotion recognition model of negative public opinion information based on the bi-directional long short-term memory (BiLSTM) network is studied in the model layer design, and a linear discriminant analysis (LDA) topic extraction method combined with association rules is proposed to extract and mine the semantics of negative public opinion topics to realize further in-depth analysis of information topics. Focusing on public health emergencies, knowledge acquisition and knowledge processing of public opinion information are conducted, and the experimental results show that the knowledge graph framework based on the construction can facilitate in-depth theme evolution analysis of public opinion events, thus demonstrating important research significance for reducing online public opinion risks.

Key words: knowledge graph, sentiment classification, topic extraction, association rule