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Automatic Identification System Data Fusion86Marine Research of the National Academy of Marine ResearchDOI: 10.29677/MR.202406_4(1).0006 The data provided by the NAMR was accessed through an HTTP API, and the data format was JSON, as shown in Figure 4. In this study, a web crawler was used to scrape the data from the HTML API webpage. The entire JSON data on the webpage was copied and converted into a data file format that could be read by the database (such as TXT, Excel, CSV, etc.). The data from the file was imported into the designated database location, table, columns, and data types as specified.3.1 AIS data accessFigure 4. AIS data formats.