English Explanatory Dictionary

softmax

English dictionary entry

Meanings

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).
verb
  1. Alternative spelling of softmaxx.

Word forms

softmax softmaxes softmaxing softmaxed

Etymology

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".

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