Loss function construction method and system based on session flood disaster
The invention discloses a loss function construction method and system based on session flood disasters. The method comprises the steps that basic data of a research area is acquired and preprocessed; constructing a simulation model and calibrating model parameters; screening flood disaster loss eva...
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| creator | WANG XINYI ZHANG YE LEI FAKAI WANG YINTANG WANG LEIZHI YUN ZHAODE LIU CHUANG LI LINGJIE CUI TINGTING LIU YONG SU XIN HU QINGFANG |
| description | The invention discloses a loss function construction method and system based on session flood disasters. The method comprises the steps that basic data of a research area is acquired and preprocessed; constructing a simulation model and calibrating model parameters; screening flood disaster loss evaluation indexes, and constructing an evaluation index system; carrying out spatial distribution on the social economic data; performing flood simulation to obtain rasterized ponding depth data of each time step length; constructing and adopting a loss rate calculation module, calculating flood disaster loss at each moment based on the distributed social economic data, fitting a change curve of a flood disaster loss-time function, comparing fitting effects of different functions, and selecting an optimal fitting function and parameters thereof; and analyzing the relationship between the related parameters in the loss function and the disaster occurrence probability to obtain a relationship formula of the loss functi |
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| subjects | CALCULATING COMPUTING COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES ELECTRIC DIGITAL DATA PROCESSING IMAGE DATA PROCESSING OR GENERATION, IN GENERAL PHYSICS SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR |
| title | Loss function construction method and system based on session flood disaster |
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