The Essence Of Data Mining
The profound analysis of data, or data mining is a process of revealing of tendencies, trends, mutual correlations of the data, which are in a storehouse, with a use of means of an artificial intellect or statistical analysis. The basic purpose of data mining is to find out the latent dependences and tendencies, imperceptible at the first sight, and to pay the attention of manager or analyst to them.
But for revealing of the tendencies and laws a plenty of the information is necessary, on the basis of which algorithms of the method will work. If this information will be insufficiently or it will be inexact, the found out dependences can appear incorrect. Only the warehouse of data can give the information necessary for data mining.
It is possible to tell, that, despite of the complexity of such systems, warehouse of data in the hands of expert becomes a flexible tool intended not only for storage of the information, but also for the decision of considerably more complicated questions about business dealing and decision-making.
The warehouse of data, according to the classical definition, is a set of means, which allows giving data in a complete subject-oriented mode for the analysis and acceptances of operating decisions. Differently, the warehouse of data unites the information, which is available in information systems of the enterprise, and prepares it for the analysis.
Very often operative systems owing to mistakes of operators contain a quantity of incorrect data. At a stage of a premise in warehouse of data the information is preliminary processed. Data on a special technology are checked on conformity to the set restrictions and if necessary corrected. The technology provides construction of analytical reports on the basis of reliable data and the duly notification of the manager of warehouse of data about mistakes in the entering information.
The warehouse of data gives a unique opportunity to receive any reports on activity of the enterprise on the basis of one source of the information. It allows integrating given, entered and accumulated in various operative systems, easier and easier to compare them. Thus during creation of reports the user is not connected by distinctions in access to data of operative systems.
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