Gostaresh Afzar HamaraFrontiers in Health Informatics2322-35968120191002Big Data from A to Ze20e20ENElhamNazariDepartment of Medical Informatics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad. firstname.lastname@example.orgMarziyehAfkanpourHamedTabesh2019082820190920The rapid development of technology over the past 20 years has led to explosive data growth in various industries, including defense industries, healthcare. The analysis of generated Big Data has recently been addressed by many researchers, because today's Big Data analysis are one of the most important and most profitable areas of development in Data Science and companies that are able to extract valuable knowledge among the massive amount of data at logical time can earn significant advantages . Accordingly, in this survey, we investigate definition of the Big Data and the data sources. Also look at advantages, challenges, applications, analysis and platforms used in the Big Data.
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