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Wrong derivative of leaky-relu activation #15

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sjh11556 opened this issue Apr 5, 2021 · 1 comment

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sjh11556 commented Apr 5, 2021

According to mod_activation.F90 file, It seems like derivative function of leaky_relu is same as RELU.

  pure function leaky_relu_prime(x, alpha) result(res)
    ! First derivative of the REctified Linear Unit (RELU) activation function.
    real(rk), intent(in) :: x(:)
    real(rk), intent(in) :: alpha
    real(rk) :: res(size(x))
    where (0.3 * x > 0)
      res = 1
    elsewhere
      res = 0
    end where
  end function leaky_relu_prime

jordanott self-assigned this

milancurcic commented Apr 3, 2023

FWIW neural-fortran-0.12.0 implements leaky ReLU.

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