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Module 2: Data Mining and Association Rule Mining

20202m

_______ is a comparison of the general features of the target class data objects against the general features of objects from one or multiple contrasting classes.

(i) Data characterization
(ii) Data classification
(iii) Data discrimination
(iv) Data selection

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Answer: (iii) Data discrimination

  • Data characterization summarizes the general features of a single target class (e.g., "typical profile of high-spending customers").
  • Data discrimination compares the target class against one or more contrasting classes, highlighting the differences (e.g., "how do high-spending customers differ from low-spending customers?").

Since the question explicitly describes a comparison against contrasting classes, the answer is data discrimination, not characterization (which looks at only one class in isolation).

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