摘要
考虑应急决策问题,基于Jaccard、Dice和余弦相似度,提出了一种新的相似度定义——变异系数相似度。介绍了四种相似度的特点,然后将变异系数相似性应用于应急群决策问题。通过每一个方案和目标方案的相似度,可以得出所有方案的一个排序,然后找出最优方案。最后,举例评价中国湖南省重大冰雪灾害急救管理能力。作为比较,也给出了不同的相似性度量的决策结果。从结果看出,新方法具有更好的相似性识别,适用于紧急群决策应用。
Considering the problem of emergency group decision making, a new similarity- variation coefficient similarity is defined based on Jaccard, Dice and cosine similarity. The features of four kinds of similarity are introduced, and then the variation coefficient similarity is applied to the emergency group decision makingAccording to the similarity of each scheme, a ranking of all the schemes can be obtained, and then the optimal scheme can be found. Finally, an example is given to evaluate the emergency management ability of major snow and ice disasters in Hunan province of China As a comparison, the decision results of different similarity measures are given. It is shown that the similarity defined in this paper is better in recognition and applicable
作者
冯长敏
FENG Chang-min(School of Applied Science,Beijing Information Science and Technology University,Beijing 100192,China)
出处
《传感器世界》
2018年第7期26-30,共5页
Sensor World
关键词
相似性
应急决策
变异系数
多准则群决策
similarity
emergencydecision making
variationcoefficient
multi-criteria groupdecision-making
