What is classification?

Question

BlackTom AI · Accepted Answer

To analyze the question, we need to map each option to a data mining or machine learning concept and see which one fits the term 'classification.'
Option 1: 'Determines values for an unknown continuous variable behavior or estimated future value.' This describes regression, which predicts a continuous outcome rather than assigning to discrete categories. Thus, this option is incorrect for classification.
Option 2: 'Determine which things go together.' This sounds like association or market-basket analysis, which looks for co-occurrence patterns among items rather than assigning records to predefined classes. Therefore, this is not classification.
Option 3: 'Segments a heterogeneous population of more homogeneous subgroups.' This is a description of clustering, which groups similar items into clusters without predefined class labels. Since classification requires predefined classes, this option is not correct for classification.
Option 4: 'Assigns records to one of a predefined set of classes.' This statement aligns exactly with the definition of classification, where each instance is labeled with one of several discrete categories. Hence, this option correctly describes classification.

MANAGEMENT INFORMATION SYSTEMS CIS 3010-16 (93684) Exam Two

What is classification?

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