POI data cleaning and fusion method and device for constructing industry risk exposure database

Abstract

The invention relates to a POI data cleaning and fusion method for constructing an industry risk exposure database. The POI data cleaning and fusion method comprises a data acquisition step, a data processing step and a data output step. The data acquisition step comprises the following steps: acquiring attribute information and spatial position information of each POI data; obtaining the score of each POI data evaluated according to the attribute information; and obtaining the relationship type of each piece of POI data. The data processing step comprises the steps of cleaning POI data at least based on the attribute information and / or scores and / or relationship types; performing spatial merging on the cleaned POI data based on the position information and / or the relationship type, and assigning scores to the merged POI data; and summarizing the cleaned POI data and the spatially merged POI data as the final spatial distribution weight of the POI. The data output step comprises the steps of outputting the summarized POI data in a summarized file form, and carrying out graphic display in combination with a GIS (Geographic Information System) technology. A large number of commercial and industrial cost splitting space distribution rationality tests and commercial and industrial area splitting quantitative experiments show that by applying the POI data cleaning and fusion method, an industrial risk exposure database can be well constructed, and the requirements of models of huge disasters such as earthquakes and typhoons can be met.

Description

technical field [0001] The invention belongs to the field of POI data processing, and in particular relates to a POI data cleaning and fusion method and device for constructing an industry risk exposure database, which can be used in catastrophe models such as earthquakes, typhoons, and floods. Background technique [0002] The industry risk exposure database AED (Aggregate Exposure Database) reflects the socially insurable commercial, industrial and residential construction area, cost and spatial distribution. Therefore, the industry risk exposure database can be spatially split for the cumulative total insured amount at the provincial or prefecture-level level, reducing the uncertainty of the earthquake insurance loss results under the accumulated insured amount to the greatest possible extent, and improving its application in insurance pricing and earthquake risk management practical value in . At the same time, the industry risk exposure database can also be used to ass...

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