BK: Data mining: concepts and techniques (1)

Chapter 1

data mining is knowledge discovery from data;

The knowledge discovery process is an iterative sequence of 7 steps:

  1. data cleaning: to remove noise and inconsistent data
  2. data integration: where multiple data sources may be combined (step1 and step 2 can be seen as one step)
  3. data selection: where data relevant to the analysis task are retrieved from the database
  4. data transformation: 
posted @ 2020-02-07 02:20  keeps_you_warm  阅读(130)  评论(0)  编辑  收藏  举报