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Chinese coastal provinces are suffering from storm surge, which causes huge economic losses, since several years. The purpose of this paper is to calculate the grey correlation degree according to the similarity in the change rate of direct economic losses between different provinces with GCRA model and cluster the coastal provinces. This paper selects the most typical five coastal provinces, using...
Based on existing grey relational degree models, in order to investigate the dynamic similarity of trends between sequences, we propose the grey relational model based on velocity and acceleration which measures the closeness of the rate of change. And then we discuss the nature of the rate of change of gray relational degree. This model can reflect the similarity of the relative change trend of time...
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