3. 1. Data cleaning (تنظيفto remove noise and inconsistent data )المتناقضة
2. Data integration تكامل (where multiple data sources may be
3. combined)
والمفهومه والمفيده المهمه واالنساق االنماط لتحديد البيانات بها تمر والتي المعالجات من مراحل عدة
KDD
4. Data selection (اختيارwhere data relevant عالقة to the analysis task are
retrieved from the database)
5. Data transformation (where data are transformed into forms
appropriate for mining by performing summary operations)
6. Data mining (process where intelligent methods are applied to data
patterns البيانات )أنماط
7. Pattern evaluation النمط تقييم (to identify the truly interesting patterns
representing knowledge based on measures)
8. Knowledge presentation (where knowledge representation
techniques are used to present mined knowledge to users.