tf.keras.initializers.RandomNormal

Initializer that generates tensors with a normal distribution.

Inherits From: random_normal_initializer, Initializer

View aliases

Main aliases

tf.initializers.RandomNormal, tf.initializers.random_normal, tf.keras.initializers.random_normal

tf.keras.initializers.RandomNormal(
    mean=0.0, stddev=0.05, seed=None
)

Also available via the shortcut function tf.keras.initializers.random_normal.

Examples:

# Standalone usage:
initializer = tf.keras.initializers.RandomNormal(mean=0., stddev=1.)
values = initializer(shape=(2, 2))

# Usage in a Keras layer:
initializer = tf.keras.initializers.RandomNormal(mean=0., stddev=1.)
layer = tf.keras.layers.Dense(3, kernel_initializer=initializer)

Args
mean	a python scalar or a scalar tensor. Mean of the random values to generate.
stddev	a python scalar or a scalar tensor. Standard deviation of the random values to generate.
seed	A Python integer. An initializer created with a given seed will always produce the same random tensor for a given shape and dtype.

Methods

from_config

View source

@classmethod
from_config(
    config
)

Instantiates an initializer from a configuration dictionary.

Example:

initializer = RandomUniform(-1, 1)
config = initializer.get_config()
initializer = RandomUniform.from_config(config)

Args
config	A Python dictionary. It will typically be the output of get_config.

Returns
An Initializer instance.

get_config

View source

get_config()

Returns the configuration of the initializer as a JSON-serializable dict.

Returns
A JSON-serializable Python dict.

__call__

View source

__call__(
    shape, dtype=None
)

Returns a tensor object initialized to random normal values.

Args
shape	Shape of the tensor.
dtype	Optional dtype of the tensor. Only floating point types are supported. If not specified, tf.keras.backend.floatx() is used, which default to float32 unless you configured it otherwise (via tf.keras.backend.set_floatx(float_dtype))