Segment-wise linear approximation of sigmoid.
Faster than sigmoid.
Returns 0. if x < -2.5, 1. if x > 2.5.
In -2.5 <= x <= 2.5, returns 0.2 * x + 0.5.
k_hard_sigmoid(x)
x |
A tensor or variable. |
A tensor.
This function is part of a set of Keras backend functions that enable lower level access to the core operations of the backend tensor engine (e.g. TensorFlow, CNTK, Theano, etc.).
You can see a list of all available backend functions here: https://keras.rstudio.com/articles/backend.html#backend-functions.
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