def test_return_sequences(layer_class):
layer_test(layer_class,
kwargs={
'output_dim': output_dim,
'return_sequences': True
},
input_shape=(nb_samples, timesteps, embedding_dim))
def test_swish(trainable):
layer_test(Swish,
kwargs={
"beta": 1.0,
"trainable": trainable
},
input_shape=(2, 3, 4))
def test_swish(trainable):
layer_test(Swish,
kwargs={
'beta': 1.0,
'trainable': trainable
},
input_shape=(2, 3, 4))
def test_cosineconvolution_2d(border_mode, subsample, use_bias_mode,
use_regularizer):
num_samples = 2
num_filter = 2
stack_size = 3
num_row = 10
num_col = 6
if border_mode == 'same' and subsample != (1, 1):
return
kwargs = {
'filters': num_filter,
'kernel_size': (3, 3),
'padding': border_mode,
'strides': subsample,
'use_bias': use_bias_mode,
'data_format': data_format
}
if use_regularizer:
kwargs.update({
'kernel_regularizer': 'l2',
'bias_regularizer': 'l2',
'activity_regularizer': 'l2'
})
layer_test(CosineConvolution2D,
kwargs=kwargs,
input_shape=(num_samples, num_row, num_col, stack_size))
def test_cosineconvolution_2d(border_mode, subsample, use_bias_mode,
use_regularizer):
num_samples = 2
num_filter = 2
stack_size = 3
num_row = 10
num_col = 6
if border_mode == "same" and subsample != (1, 1):
return
kwargs = {
"filters": num_filter,
"kernel_size": (3, 3),
"padding": border_mode,
"strides": subsample,
"use_bias": use_bias_mode,
"data_format": data_format,
}
if use_regularizer:
kwargs.update({
"kernel_regularizer": "l2",
"bias_regularizer": "l2",
"activity_regularizer": "l2",
})
layer_test(
CosineConvolution2D,
kwargs=kwargs,
input_shape=(num_samples, num_row, num_col, stack_size),
)
def test_swish(trainable):
layer_test(advanced_activations.Swish,
kwargs={
'beta': 1.0,
'trainable': trainable
},
input_shape=(2, 3, 4))
def test_implementation_mode(layer_class):
for mode in ['cpu', 'mem', 'gpu']:
layer_test(layer_class,
kwargs={
'output_dim': output_dim,
'consume_less': mode
},
input_shape=(nb_samples, timesteps, embedding_dim))
def test_dropout(layer_class):
layer_test(layer_class,
kwargs={
'output_dim': output_dim,
'dropout_U': 0.1,
'dropout_W': 0.1
},
input_shape=(nb_samples, timesteps, embedding_dim))
def basic_batchrenorm_test():
from keras import regularizers
layer_test(normalization.BatchRenormalization,
input_shape=(3, 4, 2))
layer_test(normalization.BatchRenormalization,
kwargs={'gamma_regularizer': regularizers.l2(0.01),
'beta_regularizer': regularizers.l2(0.01)},
input_shape=(3, 4, 2))
def test_cosinedense_reg_constraint():
layer_test(core.CosineDense,
kwargs={
'units': 3,
'kernel_regularizer': regularizers.l2(0.01),
'bias_regularizer': regularizers.l1(0.01),
'activity_regularizer': regularizers.l2(0.01),
'kernel_constraint': constraints.MaxNorm(1),
'bias_constraint': constraints.MaxNorm(1)
},
input_shape=(3, 2))
def test_cdropout_valid_layer(layer, args, shape, n_data):
"""Original layer test with a variety of different valid parameters.
"""
layer_test(ConcreteDropout,
kwargs={
'layer': layer(*args),
'n_data': n_data
},
input_shape=shape)
if K.backend() == 'tensorflow' or K.backend() == 'cntk':
K.clear_session()
def test_cosinedense_reg_constraint():
layer_test(
core.CosineDense,
kwargs={
"units": 3,
"kernel_regularizer": regularizers.l2(0.01),
"bias_regularizer": regularizers.l1(0.01),
"activity_regularizer": regularizers.l2(0.01),
"kernel_constraint": constraints.MaxNorm(1),
"bias_constraint": constraints.MaxNorm(1),
},
input_shape=(3, 2),
)
def test_basic_groupnorm():
layer_test(
GroupNormalization,
kwargs={
"groups": 2,
"epsilon": 0.1,
"gamma_regularizer": regularizers.l2(0.01),
"beta_regularizer": regularizers.l2(0.01),
},
input_shape=(3, 4, 2),
)
layer_test(
GroupNormalization,
kwargs={"groups": 2, "epsilon": 0.1, "axis": 1},
input_shape=(3, 4, 2),
)
layer_test(
GroupNormalization,
kwargs={"groups": 2, "gamma_initializer": "ones", "beta_initializer": "ones"},
input_shape=(3, 4, 2, 4),
)
if K.backend() != "theano":
layer_test(
GroupNormalization,
kwargs={"groups": 2, "axis": 1, "scale": False, "center": False},
input_shape=(3, 4, 2, 4),
)
def test_basic_groupnorm():
layer_test(GroupNormalization,
kwargs={
'groups': 2,
'epsilon': 0.1,
'gamma_regularizer': regularizers.l2(0.01),
'beta_regularizer': regularizers.l2(0.01)
},
input_shape=(3, 4, 2))
layer_test(GroupNormalization,
kwargs={
'groups': 2,
'epsilon': 0.1,
'axis': 1
},
input_shape=(3, 4, 2))
layer_test(GroupNormalization,
kwargs={
'groups': 2,
'gamma_initializer': 'ones',
'beta_initializer': 'ones'
},
input_shape=(3, 4, 2, 4))
if K.backend() != 'theano':
layer_test(GroupNormalization,
kwargs={
'groups': 2,
'axis': 1,
'scale': False,
'center': False
},
input_shape=(3, 4, 2, 4))
def test_capsule(num_capsule, dim_capsule, routings, share_weights,
activation):
num_samples = 100
num_rows = 256
num_cols = 256
kwargs = {
'num_capsule': num_capsule,
'dim_capsule': dim_capsule,
'routings': routings,
'share_weights': share_weights,
'activation': activation
}
layer_test(capsule.Capsule,
kwargs=kwargs,
input_shape=(num_samples, num_rows, num_cols))
def test_sub_pixel_upscaling():
num_samples = 2
num_row = 16
num_col = 16
for scale_factor in [2, 3, 4]:
input_data = np.random.random(
(num_samples, 4 * (scale_factor**2), num_row, num_col))
if K.image_data_format() == 'channels_last':
input_data = input_data.transpose((0, 2, 3, 1))
input_tensor = K.variable(input_data)
expected_output = K.eval(
KC.depth_to_space(input_tensor, scale=scale_factor))
layer_test(convolutional.SubPixelUpscaling,
kwargs={'scale_factor': scale_factor},
input_data=input_data,
expected_output=expected_output,
expected_output_dtype=K.floatx())
def test_capsule(num_capsule, dim_capsule, routings, share_weights,
activation):
# TODO: removed this once the issue #25546 in the Tensorflow repo is fixed.
if is_tf_keras and not share_weights:
return
num_samples = 100
num_rows = 256
num_cols = 256
kwargs = {
'num_capsule': num_capsule,
'dim_capsule': dim_capsule,
'routings': routings,
'share_weights': share_weights,
'activation': activation
}
layer_test(capsule.Capsule,
kwargs=kwargs,
input_shape=(num_samples, num_rows, num_cols))
def test_deconvolution_3d():
num_samples = 6
num_filter = 4
stack_size = 2
kernel_dim1 = 12
kernel_dim2 = 10
kernel_dim3 = 8
for batch_size in [None, num_samples]:
for border_mode in _convolution_border_modes:
for subsample in [(1, 1, 1), (2, 2, 2)]:
if border_mode == 'same' and subsample != (1, 1, 1):
continue
dim1 = conv_input_length(kernel_dim1, 7,
border_mode,
subsample[0])
dim2 = conv_input_length(kernel_dim2, 5,
border_mode,
subsample[1])
dim3 = conv_input_length(kernel_dim3, 3,
border_mode,
subsample[2])
layer_test(convolutional.Deconvolution3D,
kwargs={'filters': num_filter,
'kernel_size': (7, 5, 3),
'output_shape': (batch_size, num_filter, dim1, dim2, dim3),
'padding': border_mode,
'strides': subsample,
'data_format': 'channels_first'},
input_shape=(num_samples, stack_size, kernel_dim1, kernel_dim2, kernel_dim3),
fixed_batch_size=True, tolerance=None)
layer_test(convolutional.Deconvolution3D,
kwargs={'filters': num_filter,
'kernel_size': (7, 5, 3),
'output_shape': (batch_size, num_filter, dim1, dim2, dim3),
'padding': border_mode,
'strides': subsample,
'data_format': 'channels_first',
'kernel_regularizer': 'l2',
'bias_regularizer': 'l2',
'activity_regularizer': 'l2'},
input_shape=(num_samples, stack_size, kernel_dim1, kernel_dim2, kernel_dim3),
fixed_batch_size=True, tolerance=None)
layer_test(convolutional.Deconvolution3D,
kwargs={'filters': num_filter,
'kernel_size': (7, 5, 3),
'output_shape': (num_filter, dim1, dim2, dim3),
'padding': border_mode,
'strides': subsample,
'data_format': 'channels_first',
'kernel_regularizer': 'l2',
'bias_regularizer': 'l2',
'activity_regularizer': 'l2'},
input_shape=(num_samples, stack_size, kernel_dim1, kernel_dim2, kernel_dim3), tolerance=None)
def test_sub_pixel_upscaling(scale_factor):
num_samples = 2
num_row = 16
num_col = 16
input_dtype = K.floatx()
nb_channels = 4 * (scale_factor**2)
input_data = np.random.random((num_samples, nb_channels, num_row, num_col))
input_data = input_data.astype(input_dtype)
if K.image_data_format() == "channels_last":
input_data = input_data.transpose((0, 2, 3, 1))
input_tensor = K.variable(input_data)
expected_output = K.eval(
KC.depth_to_space(input_tensor, scale=scale_factor))
layer_test(
SubPixelUpscaling,
kwargs={"scale_factor": scale_factor},
input_data=input_data,
expected_output=expected_output,
expected_output_dtype=K.floatx(),
)
def basic_instancenorm_test():
from keras import regularizers
layer_test(normalization.InstanceNormalization,
kwargs={'epsilon': 0.1,
'gamma_regularizer': regularizers.l2(0.01),
'beta_regularizer': regularizers.l2(0.01)},
input_shape=(3, 4, 2))
layer_test(normalization.InstanceNormalization,
kwargs={'gamma_initializer': 'ones',
'beta_initializer': 'ones'},
input_shape=(3, 4, 2))
layer_test(normalization.InstanceNormalization,
kwargs={'scale': False, 'center': False},
input_shape=(3, 3))
def test_sine_relu(epsilon):
layer_test(SineReLU, kwargs={"epsilon": epsilon}, input_shape=(2, 3, 4))
def test_pelu():
layer_test(advanced_activations.PELU, kwargs={},
input_shape=(2, 3, 4))
def test_swish_constant():
layer_test(advanced_activations.Swish, kwargs={'beta': 1.0, 'trainable': False},
input_shape=(2, 3, 4))
def test_srelu_share():
layer_test(advanced_activations.SReLU, kwargs={'shared_axes': 1},
input_shape=(2, 3, 4))
def test_cosineconvolution_2d():
num_samples = 2
num_filter = 2
stack_size = 3
num_row = 10
num_col = 6
if K.backend() == 'theano':
data_format = 'channels_first'
elif K.backend() == 'tensorflow':
data_format = 'channels_last'
for border_mode in _convolution_border_modes:
for subsample in [(1, 1), (2, 2)]:
for use_bias_mode in [True, False]:
if border_mode == 'same' and subsample != (1, 1):
continue
layer_test(convolutional.CosineConvolution2D,
kwargs={
'filters': num_filter,
'kernel_size': (3, 3),
'padding': border_mode,
'strides': subsample,
'use_bias': use_bias_mode,
'data_format': data_format
},
input_shape=(num_samples, num_row, num_col,
stack_size))
layer_test(convolutional.CosineConvolution2D,
kwargs={
'filters': num_filter,
'kernel_size': (3, 3),
'padding': border_mode,
'strides': subsample,
'use_bias': use_bias_mode,
'data_format': data_format,
'kernel_regularizer': 'l2',
'bias_regularizer': 'l2',
'activity_regularizer': 'l2'
},
input_shape=(num_samples, num_row, num_col,
stack_size))
if data_format == 'channels_first':
X = np.random.randn(1, 3, 5, 5)
input_dim = (3, 5, 5)
W0 = X[:, :, ::-1, ::-1]
elif data_format == 'channels_last':
X = np.random.randn(1, 5, 5, 3)
input_dim = (5, 5, 3)
W0 = X[0, :, :, :, None]
model = Sequential()
model.add(
convolutional.CosineConvolution2D(1, (5, 5),
use_bias=True,
input_shape=input_dim,
data_format=data_format))
model.compile(loss='mse', optimizer='rmsprop')
W = model.get_weights()
W[0] = W0
W[1] = np.asarray([1.])
model.set_weights(W)
out = model.predict(X)
assert_allclose(out, np.ones((1, 1, 1, 1), dtype=K.floatx()), atol=1e-5)
model = Sequential()
model.add(
convolutional.CosineConvolution2D(1, (5, 5),
use_bias=False,
input_shape=input_dim,
data_format=data_format))
model.compile(loss='mse', optimizer='rmsprop')
W = model.get_weights()
W[0] = -2 * W0
model.set_weights(W)
out = model.predict(X)
assert_allclose(out, -np.ones((1, 1, 1, 1), dtype=K.floatx()), atol=1e-5)
def test_cosinedense(input_shape):
layer_test(core.CosineDense, kwargs={'units': 3}, input_shape=input_shape)
def test_srelu(kwargs):
layer_test(SReLU, kwargs=kwargs, input_shape=(2, 3, 4))
def test_ptrelu(kwargs):
layer_test(advanced_activations.PTReLU,
kwargs=kwargs,
input_shape=(2, 3, 4))
def test_pelu(kwargs):
layer_test(PELU, kwargs=kwargs, input_shape=(2, 3, 4))
def test_sine_relu(epsilon):
layer_test(advanced_activations.SineReLU,
kwargs={'epsilon': epsilon},
input_shape=(2, 3, 4))
