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softmax.

A generalization of the logistic function that "squashes" a K-dimensional vector mathbf z of arbitrary real values to a K-dimensional vector σ( mathbf z) of real values in the range (0, 1).

7 characters2 syllables approx.English language

Meaning & usage

noun
  1. A generalization of the logistic function that "squashes" a K-dimensional vector mathbf z of arbitrary real values to a K-dimensional vector σ( mathbf z) of real values in the range (0, 1).

    uncountable
Where this word comes from

Coined by John S. Bridle in 1989, on the grounds of the function being "a differentiable generalisation of the 'winner-take-all' operation of picking the maximum value".

verb
  1. Alternative spelling of softmaxx.

    alt-of · alternative
Where this word comes from

From soft + -max.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.