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nn_softmin

Softmin


Description

Applies the Softmin function to an n-dimensional input Tensor rescaling them so that the elements of the n-dimensional output Tensor lie in the range [0, 1] and sum to 1. Softmin is defined as:

Usage

nn_softmin(dim)

Arguments

dim

(int): A dimension along which Softmin will be computed (so every slice along dim will sum to 1).

Details

\mbox{Softmin}(x_{i}) = \frac{\exp(-x_i)}{∑_j \exp(-x_j)}

Value

a Tensor of the same dimension and shape as the input, with values in the range [0, 1].

Shape

  • Input: (*) where * means, any number of additional dimensions

  • Output: (*), same shape as the input

Examples

if (torch_is_installed()) {
m <- nn_softmin(dim = 1)
input <- torch_randn(2, 2)
output <- m(input)

}

torch

Tensors and Neural Networks with 'GPU' Acceleration

v0.3.0
MIT + file LICENSE
Authors
Daniel Falbel [aut, cre, cph], Javier Luraschi [aut], Dmitriy Selivanov [ctb], Athos Damiani [ctb], Christophe Regouby [ctb], Krzysztof Joachimiak [ctb], RStudio [cph]
Initial release

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