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BDM 311 DATA MINING AND WAREHOUSING SEPTEMBER TO DECEMBER 2025 SEMESTER BLENDED 2.0 UNIT
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Attribute subset selection is where irrelevant, weakly relevant, or redundant attributes or dimensions may be detected and removed
In which step of Knowledge Discovery, multiple data sources are combined?
Numerosity reduction is where
encoding mechanisms are used to reduce the dataset size.
Transaction reduction exclude the k-itemset whose
corresponding hashing bucket count is less than the threshold is an infrequent itemset.