Earthquake casualty evaluation method and system

Abstract

The invention relates to an earthquake casualty evaluation method and system. The method comprises the steps of obtaining an earthquake historical case library; determining the similarity between a current earthquake disaster and each historical case based on a similarity evaluation model of the Manhattan distance; screening historical cases in an earthquake historical case library according to the similarity to obtain an initial historical case set participating in disaster assessment; obtaining the spatial correlation degree between each historical case in the initial historical case set andthe current earthquake disaster; screening the initial historical case set to obtain a final historical case subset participating in disaster assessment; determining the weight of each historical case participating in disaster assessment in the final historical case subset; obtaining a correction coefficient corresponding to each historical case; and evaluating the current earthquake disaster casualty quantity according to the weight of each historical case participating in disaster evaluation in the final historical case subset and the corresponding correction coefficient. The method can improve the precision of earthquake casualty population evaluation.

Description

technical field [0001] The invention relates to the field of earthquake assessment, in particular to a method and system for assessing earthquake casualties. Background technique [0002] With the development of social economy, the casualties and economic losses caused by earthquakes are gradually increasing under the condition of the same magnitude. Destructive earthquakes not only caused huge economic losses to the country, but also caused relatively large casualties, so the population assessment of earthquake casualties has always been the focus of research. [0003] At present, the methods of earthquake casualty population assessment mainly include empirical formula method, probability analysis method, and dynamic evaluation method. Due to the many factors affecting the earthquake casualty population, different scholars consider different factors when constructing models through the empirical formula method. Christokov et al. believed that the earthquake death toll had...

AI Technical Summary

Problems solved by technology

However, the evaluation methods based on historical cases at home and abroad are still aimed at a certain disaster, researching and analyzing the development law of its historical cases, and predicting the possibility and possible impact of future disaster development through comparison with the current situation; It is rare to conduct disaster assessment on historical cases with relatively similar disasters. At present, this method is only well applied in the disaster assessment of natural disasters such as typhoons and droughts, but it has not yet been involved in the assessment of earthquake disasters.

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