DATABASE FUNDAMENTALS
DATA WAREHOUSING AND DATA MINING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A subdivision of a set of examples into a number of classes
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A measure of the accuracy of the classification of a concept that is given by a certain theory
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The task of assigning a classification to a set of examples
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None of these
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Detailed explanation-1: -Classification is a task that requires the use of machine learning algorithms that learn how to assign a class label to examples from the problem domain. An easy to understand example is classifying emails as “spam” or “not spam.”
Detailed explanation-2: -Answer» A. a subdivision of a set of examples into a number of classes.
Detailed explanation-3: -Classification is a data mining function that assigns items in a collection to target categories or classes. The goal of classification is to accurately predict the target class for each case in the data. For example, a classification model could be used to identify loan applicants as low, medium, or high credit risks.
Detailed explanation-4: -Summarization involves methods for finding a compact description for a subset of data.