tf.keras.layers.PReLU

Parametric Rectified Linear Unit activation layer.

Inherits From: Layer, Operation

tf.keras.layers.PReLU(
    alpha_initializer='Zeros',
    alpha_regularizer=None,
    alpha_constraint=None,
    shared_axes=None,
    **kwargs
)

Formula:

f(x) = alpha * x for x < 0
f(x) = x for x >= 0

where alpha is a learned array with the same shape as x.

alpha_initializer Initializer function for the weights.
alpha_regularizer Regularizer for the weights.
alpha_constraint Constraint for the weights.
shared_axes The axes along which to share learnable parameters for the activation function. For example, if the incoming feature maps are from a 2D convolution with output shape (batch, height, width, channels), and you wish to share parameters across space so that each filter only has one set of parameters, set shared_axes=[1, 2].
**kwargs Base layer keyword arguments, such as name and dtype.

input Retrieves the input tensor(s) of a symbolic operation.

Only returns the tensor(s) corresponding to the first time the operation was called.

output Retrieves the output tensor(s) of a layer.

Only returns the tensor(s) corresponding to the first time the operation was called.

Methods

from_config

View source

@classmethod
from_config(
    config
)

Creates an operation from its config.

This method is the reverse of get_config, capable of instantiating the same operation from the config dictionary.

if "dtype" in config and isinstance(config["dtype"], dict):
    policy = dtype_policies.deserialize(config["dtype"])

Args
config A Python dictionary, typically the output of get_config.

Returns
An operation instance.