3. 1. Data cleaning (惠惴to remove noise and inconsistent data )悋惠悋惷悸
2. Data integration 惠悋 (where multiple data sources may be
3. combined)
悋 悋惆 悋 悋悋愕悋 悋悋悋愀 惠忰惆惆 悋惡悋悋惠 惡悋 惠惘 悋惠 悋惺悋悴悋惠 惘悋忰 惺惆悸
KDD
4. Data selection (悋悽惠悋惘where data relevant 惺悋悸 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 悋惡悋悋惠 )悖悋愀
7. Pattern evaluation 悋愀 惠 (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.