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                                                                         1.2 What Is Data Mining?  7




















                                                                           Evaluation and  Knowledge
                                                                           presentation




                                                                   Data       Patterns
                                                                   mining



                                                 Selection and
                                                 transformation



                                                Data
                                              Warehouse
                                Cleaning and
                                integration







                                                  Flat files
                                   Databases




                     Figure 1.4 Data mining as a step in the process of knowledge discovery.
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