China Safety Science Journal ›› 2020, Vol. 30 ›› Issue (8): 93-100.doi: 10.16265/j.cnki.issn1003-3033.2020.08.014

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Early warning method for emergencies based on linguistic information

ZHANG Zixin1, WANG Liang2, WANG Yingming2   

  1. 1 College of Modern Management, Yango University, Fuzhou Fujian 350015, China;
    2 School of Economics & Management, Fuzhou University, Fuzhou Fujian 350116, China
  • Received:2020-05-02 Revised:2020-07-14 Online:2020-08-28 Published:2021-07-15

Abstract: In order to make up for deficiencies of existing studies which neglected fuzziness of information related to emergency early warning in real word, a warning method based on linguistic information was proposed. Firstly, calculation method for basic belief degree of linguistic information under fuzzy frame was provided. Secondly, the information was fused by employing fuzzy evidential reasoning. Thirdly, safety status of warning objects were determined according to final belief degrees of different assessment grades so as to attain early warning purpose. Finally, a numerical example was applied to illustrate feasibility and validity of proposed method. The results show that it can deal with fuzzy warning information of emergencies in real world successfully.

Key words: linguistic information, emergency, early warning, fuzzy evidential reasoning, belief degree

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