Instead of predicting exactly 0 or 1, logistic regression generates a probability—a value between 0 and 1, exclusive. For example, consider a logistic regression model for spam detection. If the model infers a value of 0.932 on a particular email message, it implies a 93.2% probability that the email message is spam. More precisely, it means that in the limit of infinite training examples, the set of examples for which the model predicts 0.932 will actually be spam 93.2% of the time and the remaining 6.8% will not.
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Last updated 2022-07-18 UTC.
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