Logarithm of the sigmoid activation function.
tf.keras.ops.log_sigmoid(
x
)
It is defined as f(x) = log(1 / (1 + exp(-x))).
| Args | |
|---|---|
x | Input tensor. |
| Returns | |
|---|---|
A tensor with the same shape as x. |
x = keras.ops.convert_to_tensor([-0.541391, 0.0, 0.50, 5.0]) keras.ops.log_sigmoid(x) array([-1.0000418, -0.6931472, -0.474077, -0.00671535], dtype=float32)
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Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/api_docs/python/tf/keras/ops/log_sigmoid