(As a new interdisciplinary interdisciplinary application, data mining is playing an increasingly important role in decision support activities in all walks of life. This book will introduce data mining（ Datamining) and knowledgediscoveryfromdatabases, as well as the concepts and skills involved in discovering meaningful formal common sense from many noisy, incomplete, and even inconsistent data sets. This chapter will introduce the origin of data mining from the perspective of the evolution of data management skills. And the effect and meaning of data mining. It will also introduce the structure of data mining system, the common sense varieties obtained by data mining, and the classification of data mining system. Finally, it briefly introduces some hot issues in the field of data mining at that time.)
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