Big Data is structured or unstructured large quantities of data. They are processed with special automated tools to be used for statistics, analysis, predictions, and decision making. The very term was proposed by the editor of the journal Nature Clifford Lynch in a special issue of 2008. He talked about the explosive growth in the world. Lynch attributed any collection of heterogeneous data more than 150 GB per day, but there is still no single criterion. Until 2011, big data software development was analyzed only within the framework of scientific and statistical research. But by the beginning of 2012, the volumes which had grown to a huge scale, and there was a need for their systematization and effective application. Since 2014, the world’s leading universities paid attention to Big Data, where they teach applied engineering and IT specialties. Then IT corporations joined in the collection and analysis – such as Microsoft, IBM, Oracle, EMC, and then Google, Apple, Facebook, and...
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