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DETECTING ANOMALIES IN INTERMAGNET DATA USING GRAPH NEURAL NETWORK

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The use of modern digital information technologies, such as Data Mining, Data Science and Big Data, has caused an exponential growth in the volume of data, allowing to obtain new knowledge in various subject areas based on the information provided. In this regard, tasks related to pre-processing, intellectual analysis, visualization of large data sets have become especially relevant. Using the methods of intelligent analysis Unsupervised learning, the problem of detecting anomalies (outliers) in data arrays obtained from the Lycksele magnetic observatory, which is part of the international network INTERMAGNET, is solved. Since anomalies reflect changes in the Earth’s geomagnetic field, they are highly informative, which gives the solution to this problem great scientific and practical value. Anomalies in the designated data are not frequent enough, so they can be detected only in a large volume of processed information. The results of detecting anomalies using a graph neural network are presented. The MATLAB system is used as a software tool.

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