Normalization1 Data transformation * Data transformation : A function that maps the entire set of values of a given attribute to a new set of replacement values s.t. each old value can be identified with one of the new value - Smoothing : Remove noise from data ex) binning, regressio and clustering - Attribute/feature construction : new attributes constructed from the given ones - Aggregation : Summarization ex) the daily sales d.. 2024. 3. 5. 이전 1 다음