在tf.random.sed中设置种子是否也设置了glorot_uniform kernel_initializer在k



我目前正在使用如下定义的conv2D layer训练convolutional neural network

conv1 = tf.keras.layers.Conv2D(filters=64, kernel_size=(3,3), padding='SAME', activation='relu')(inputs)

我的理解是,默认的kernel_initializer是glorot_uniform,它的默认种子为"none":

tf.keras.layers.Conv2D(
filters, kernel_size, strides=(1, 1), padding='valid', data_format=None,
dilation_rate=(1, 1), activation=None, use_bias=True,
kernel_initializer='glorot_uniform', bias_initializer='zeros',
kernel_regularizer=None, bias_regularizer=None, activity_regularizer=None,
kernel_constraint=None, bias_constraint=None, **kwargs
)

tf.compat.v1.keras.initializers.glorot_uniform(seed=None, dtype=tf.dtypes.float32)

我正在尝试生成可复制的代码,并且已经根据StackOverflow帖子设置了随机种子:

seed_num = 1
os.environ['PYTHONHASHSEED'] = '0'
np.random.seed(seed_num)
rn.seed(seed_num)
session_conf = tf.compat.v1.ConfigProto(intra_op_parallelism_threads=1, inter_op_parallelism_threads=1)
tf.random.set_seed(seed_num)
sess = tf.compat.v1.Session(graph=tf.compat.v1.get_default_graph(), config=session_conf)
K.set_session(sess)

glorot_uniform使用的tf.random.set_seed种子号是否在conv2D layer中?如果没有,在定义conv2D layer时,该种子将如何定义?

对于每一层,都可以使用内核和偏置初始化器的种子。

你可以单独为你的初始值设定器种子,

kernel_initializer=initializers.glorot_uniform(seed=0))

来自文件:

glorot_normal
keras.initializers.glorot_normal(seed=None)
Glorot normal initializer, also called Xavier normal initializer.
It draws samples from a truncated normal distribution centered on 0 with stddev = sqrt(2 / (fan_in + fan_out)) where fan_in is the number of input units in the weight tensor and fan_out is the number of output units in the weight tensor.
Arguments
seed: A Python integer. Used to seed the random generator.

感谢Zabir Al Nazil,答案是"是的"。设置tf.random.set_seed()还设置Conv2D层的glorot_uniform种子。

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