Multiple choice

Which of these statements is not true regarding data mining?

  1. Market basket analysis is used to discover interesting associations between attribute.

  2. Decision Trees are often used to find appropriate groupings of elements.

  3. Data mining extracts knowledge hidden from large volumes of raw data.

  4. Data mining discovers implicit patterns in the given data.

  5. Predictive models use data with known results.
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B Correct answer
Explanation

Clustering is often used to find appropriate groupings of elements for a set of data. Unlike decision trees we discuss above, clustering is a kind of undirected knowledge discovery or unsupervised learning; that is, there is no target field, and the relationship among the data is identified by bottom-up approach.

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