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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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 the above
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Detailed explanation-1: -Explanation: Classification accuracy is a metric that summarizes the overall performance of a class version because of the wide variety of accurate predictions divided with the aid of using the overall wide variety of predictions.
Detailed explanation-2: -There are many ways for measuring classification performance. Accuracy, confusion matrix, log-loss, and AUC-ROC are some of the most popular metrics. Precision-recall is a widely used metrics for classification problems.
Detailed explanation-3: -Accuracy is one metric for evaluating classification models. Informally, accuracy is the fraction of predictions our model got right. Formally, accuracy has the following definition: Accuracy = Number of correct predictions Total number of predictions.
Detailed explanation-4: -Answer» B. measure of the accuracy, of the classification of a concept that is given by a certain theory.
Detailed explanation-5: -Accuracy The accuracy of a classifier is given as the percentage of total correct predictions divided by the total number of instances.