Data Preparation For Data Mining

The scale is being expanded and analysed today when the demand increases day by day constantly in the data, various kinds of data analysis tool and data are excavating the system and is being developed, developed emerging constantly. A lot of successful data excavate the system, such as SAS Enterprise Miner, SPSS Clementine , IBM Intelligent Miner ,etc., after more than ten years of development, the application succeeding in the fields of much commerce , scientific research, have not merely guide the management and development of enterprises, has brought the enormous economic benefits to enterprises, and has made enormous contribution to the research that the data excavated technology for the scientific research institution. It is that the data excavate the bridge studied and used that the data excavate the system, play a very big role to the popularization that the data excavate technology.Very high guarantee that can be carried on under the enviroment of high-quality data that the data pretreatment in the data are excavated is the data to excavate algorithms, the data excavate a lot of algorithms at present, but the algorithm and software which are used in the pretreatment have not appeared in a large amount , its main reason is pretreatment of the data, to different field and trade, there are different needs, the method of the pretreatment of the data is various at present, how to guarantee the quality of the data, raise data can guarantee commonability of software while excavating efficiency of algorithm and good embedding can be in existing data it excavates to be the place in advance of data at present of the system Pay attention to the software and remain to solve the problem that and improve.This text passes correctly the data excavate the study of treatment technology in advance of data in the system, and consult the domestic and international data and excavate the systematic study on pretreatment respect of the data, have summarized data the problem faced in process system development and development trend in advance, have designed a process system in advance of datum that can meet the need to a certain extent . It is unusually worth , remove the repeated record algorithm to compare interchangeably that what this text explains links the stipulations, assembles, filters, the data that can need planning before excavating the data carry on a certain degree and essential washing , conversion, have improved quality and efficiency that the data excavate to a certain extent.First, two chapters have recommended the data to excavate technology and data and...