AI engineering glossary · Classical ML algorithms

What is softmax regression?

Softmax regression (also called Multinomial logistic regression): A multi-class extension of logistic fitting that scores every class with its own weighted sum and converts the scores into probabilities that add up to 1 using the softmax function. The predicted class is the one with the highest probability.

Level: intermediateTopic: Classical ML algorithms

Softmax regression: an example

Scores of 2.0, 1.0 and 0.1 for cat, dog and bird become probabilities of about 0.66, 0.24 and 0.10.

Related terms

More Classical ML algorithms terms

Where you learn it

Softmax regression is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.

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