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Accuracy

A type of metric. It is a value that tells us how often a model produces correct predictions. The higher the accuracy, the better.

It can be calculated by dividing the number of correct predictions by the number of total predictions. Optionally multiply the result by 100 to obtain a percentage.

\[ \frac{\text{number of correct predictions}}{\text{number of total predictions}} \]

Note

Accuracy is also 1 - error rate.

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