Data Preparation for Data Mining

  • Magdi Kamel
  • Published 2009 in Encyclopedia of Data Warehousing and Mining


Practical experience of data mining has revealed that preparing data is the most time-consuming phase of any data mining project. Estimates of the amount of time and resources spent on data preparation vary from at least 60% to upward of 80% (SPSS, 2002a). In spite of this fact, not enough attention is given to this important task, thus perpetuating the… (More)


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