activation_log_sigmoid: Logarithm of the sigmoid activation function.

In keras3: R Interface to 'Keras'

Logarithm of the sigmoid activation function.

Description

It is defined as f(x) = log(1 / (1 + exp(-x))).

Usage

activation_log_sigmoid(x)

Arguments

x	Input tensor.

Value

A tensor, the result from applying the activation to the input tensor x.

See Also

Other activations:
activation_celu()
activation_elu()
activation_exponential()
activation_gelu()
activation_glu()
activation_hard_shrink()
activation_hard_sigmoid()
activation_hard_tanh()
activation_leaky_relu()
activation_linear()
activation_log_softmax()
activation_mish()
activation_relu()
activation_relu6()
activation_selu()
activation_sigmoid()
activation_silu()
activation_soft_shrink()
activation_softmax()
activation_softplus()
activation_softsign()
activation_sparse_plus()
activation_sparsemax()
activation_squareplus()
activation_tanh()
activation_tanh_shrink()
activation_threshold()

keras3 documentation built on June 8, 2025, 1:36 p.m.