Method and system for assessing population of earthquake casualties

Abstract

The invention relates to a method and system for assessing earthquake casualty population. The method includes: obtaining the earthquake history case library; determining the similarity between the current earthquake disaster and each historical case based on the similarity evaluation model of Manhattan distance; screening the historical cases in the earthquake history case library according to the similarity, and obtaining the participating disaster situation The initial historical case set for assessment; obtain the spatial correlation degree between each historical case in the initial historical case set and the current earthquake disaster; filter the initial historical case set to obtain the final historical case subset participating in the disaster assessment; determine the final historical case sub-set Concentrate the weight of each historical case participating in the disaster assessment; obtain the correction coefficient corresponding to each historical case; according to the weight of each historical case participating in the disaster assessment and the corresponding correction coefficient in the final historical case subset, calculate the number of casualties in the current earthquake disaster Evaluate. The invention can improve the accuracy of earthquake casualty population assessment.

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.

Images