Method for retrieving emergency cases under incomplete information condition

doi:10.16265/j.cnki.issn1003-3033.2018.08.031

Abstract

Abstract: The emergencies contain incomplete information,if it is not expressed appropriately,the effect of emergency response will be affected adversely.This paper introduces the belief degree distribution to represent the information on emergencies,and presents a method for retrieving emergency cases under the incomplete information condition.Firstly,the proposed method applies the belief degree distribution to represent incomplete information,and builds an optimization model to obtain the score of the distribution grade for determining the attribute value of incomplete information.Then,the case similarities and the utility values of the alternative implementation effect are calculated.Furthermore,the comprehensive utilities of the historical cases are obtained by aggregating case similarities and utilities,and the most effective historical case is retrieved according to the comprehensive utilities.Finally,the method was used for analyzing an example.The results show that the method can be used to deal with the emergency cases containing incomplete information,and the results of the retrieval are more accurate.

Key words: case-based reasoning(CBR), incomplete information, data envelopment analysis, interval belief degree distribution, emergency case base

CLC Number:

X928.06
C931

ZHENG Jing, WANG Yingming. Method for retrieving emergency cases under incomplete information condition[J]. China Safety Science Journal, 2018, 28(8): 186-191.

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