Many partitional clustering algorithms that automatically determine the number of clusters claim that this is an advantage. List two situations in which this is not the case.
What will be an ideal response?
(a) When there is hierarchical structure in the data. Most algorithms that
automatically determine the number of clusters are partitional, and
thus, ignore the possibility of subclusters.
(b) When clustering for utility. If a certain reduction in data size is needed,
then it is necessary to specify how many clusters (cluster centroids) are
produced.
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?Case-Based Critical Thinking Questions ?Case 7-1 Oscar owns Oscar's Skateboard Shop. He wants to create a web form to allow users to specify the type of skateboards they would like to buy. This includes the make, model, type and color, and board options. Oscar's skateboards come in Children, Young Adult, and Adult sizes. Oscar's skateboards come in different colors, patterns, and themes. He has over 25 makes and models of skateboards. Oscar wants the web form to allow users to select the delivery date for the items he purchases. To select the dates, Oscar should use a _____.?
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