Accuracy is a popular metric for evaluating classification models, but it is not always the best measure for assessing model performance. Learn why and what other metrics to use instead.
Table of Contents
Question
Accuracy is always the primary metric used to measure a model’s performance. True or False?
A. True
B. False
Answer
B. False
Explanation
There are different metrics that can be used to measure a model’s performance.
The statement “Accuracy is always the primary metric used to measure a model’s performance” is False. While accuracy is a popular metric for evaluating classification models, it is not always the best measure for assessing model performance. For instance, accuracy can be unreliable when the class distribution is imbalanced. In such cases, other metrics such as precision, recall, F1 score, and AUC-ROC are more appropriate. Moreover, accuracy does not account for the cost of false positives and false negatives, which can be significant in certain applications. Therefore, it is important to choose the right evaluation metric based on the problem at hand and the characteristics of the data.
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