def model(self):
block0 = layers.gate_block(
inputs=self.embed, k_size=3, filters=100, scope_name='block0')
pool0 = layers.one_maxpool(
inputs=block0, padding='VALID', scope_name='pool0')
flatten0 = layers.flatten(pool0, scope_name='flatten0')
block1 = layers.gate_block(
inputs=self.embed, k_size=4, filters=100, scope_name='block1')
pool1 = layers.one_maxpool(
inputs=block1, padding='VALID', scope_name='pool1')
flatten1 = layers.flatten(pool1, scope_name='flatten1')
block2 = layers.gate_block(
inputs=self.embed, k_size=5, filters=100, scope_name='block2')
pool2 = layers.one_maxpool(
inputs=block2, padding='VALID', scope_name='pool2')
flatten2 = layers.flatten(pool2, scope_name='flatten2')
concat0 = layers.concatinate(
inputs=[flatten0, flatten1, flatten2], scope_name='concat0')
dropout0 = layers.Dropout(
inputs=concat0, rate=1 - self.keep_prob, scope_name='dropout0')
self.logits = layers.fully_connected(
inputs=dropout0, out_dim=self.n_classes, scope_name='fc0')
def model(self):
conv0 = layers.conv1d(
inputs=self.embed,
filters=100,
k_size=3,
stride=1,
padding="SAME",
scope_name="conv0",
)
relu0 = layers.relu(inputs=conv0, scope_name="relu0")
pool0 = layers.one_maxpool(inputs=relu0,
padding="VALID",
scope_name="pool0")
flatten0 = layers.flatten(inputs=pool0, scope_name="flatten0")
conv1 = layers.conv1d(
inputs=self.embed,
filters=100,
k_size=4,
stride=1,
padding="SAME",
scope_name="conv1",
)
relu1 = layers.relu(inputs=conv1, scope_name="relu0")
pool1 = layers.one_maxpool(inputs=relu1,
padding="VALID",
scope_name="pool1")
flatten1 = layers.flatten(inputs=pool1, scope_name="flatten1")
conv2 = layers.conv1d(
inputs=self.embed,
filters=100,
k_size=5,
stride=1,
padding="SAME",
scope_name="conv2",
)
relu2 = layers.relu(inputs=conv2, scope_name="relu0")
pool2 = layers.one_maxpool(inputs=relu2,
padding="VALID",
scope_name="pool2")
flatten2 = layers.flatten(inputs=pool2, scope_name="flatten2")
concat0 = layers.concatinate([flatten0, flatten1, flatten2],
scope_name="concat0")
dropout0 = layers.Dropout(inputs=concat0,
rate=1 - self.keep_prob,
scope_name="dropout0")
self.logits = layers.fully_connected(inputs=dropout0,
out_dim=self.n_classes,
scope_name="fc0")
def _build_encoder(self, vd):
with tf.variable_scope(self.name):
if self.arch == 'FC':
layer_i = layers.flatten(self.input_ph)
for i, layer_size in enumerate(self.fc_layer_sizes):
layer_i = layers.fc('fc{}'.format(i+1), layer_i, layer_size, activation=self.activation)[-1]
self.ox = layer_i
elif self.arch == 'ATARI-TRPO':
self.w1, self.b1, self.o1 = layers.conv2d('conv1', self.input_ph, 16, 4, self.input_channels, 2, activation=self.activation)
self.w2, self.b2, self.o2 = layers.conv2d('conv2', self.o1, 16, 4, 16, 2, activation=self.activation)
self.w3, self.b3, self.o3 = layers.fc('fc3', layers.flatten(self.o2), 20, activation=self.activation)
self.ox = self.o3
elif self.arch == 'NIPS':
self.w1, self.b1, self.o1 = layers.conv2d('conv1', vd, self.input_ph, 16, 8, self.input_channels, 4, activation=self.activation)
self.w2, self.b2, self.o2 = layers.conv2d('conv2', vd, self.o1, 32, 4, 16, 2, activation=self.activation)
self.w3, self.b3, self.o3 = layers.fc('fc3', vd, layers.flatten(self.o2), 256, activation=self.activation)
self.ox = self.o3
elif self.arch == 'NATURE':
self.w1, self.b1, self.o1 = layers.conv2d('conv1', self.input_ph, 32, 8, self.input_channels, 4, activation=self.activation)
self.w2, self.b2, self.o2 = layers.conv2d('conv2', self.o1, 64, 4, 32, 2, activation=self.activation)
self.w3, self.b3, self.o3 = layers.conv2d('conv3', self.o2, 64, 3, 64, 1, activation=self.activation)
self.w4, self.b4, self.o4 = layers.fc('fc4', layers.flatten(self.o3), 512, activation=self.activation)
self.ox = self.o4
else:
raise Exception('Invalid architecture `{}`'.format(self.arch))
if self.use_recurrent:
with tf.variable_scope('lstm_layer') as vs:
self.lstm_cell = tf.contrib.rnn.BasicLSTMCell(
self.hidden_state_size, state_is_tuple=True, forget_bias=1.0)
batch_size = tf.shape(self.step_size)[0]
self.ox_reshaped = tf.reshape(self.ox,
[batch_size, -1, self.ox.get_shape().as_list()[-1]])
state_tuple = tf.contrib.rnn.LSTMStateTuple(
*tf.split(self.initial_lstm_state, 2, 1))
self.lstm_outputs, self.lstm_state = tf.nn.dynamic_rnn(
self.lstm_cell,
self.ox_reshaped,
initial_state=state_tuple,
sequence_length=self.step_size,
time_major=False)
self.lstm_state = tf.concat(self.lstm_state, 1)
self.ox = tf.reshape(self.lstm_outputs, [-1,self.hidden_state_size], name='reshaped_lstm_outputs')
# Get all LSTM trainable params
self.lstm_trainable_variables = [v for v in
tf.trainable_variables() if v.name.startswith(vs.name)]
return self.ox
def graph_forward():
model = graph.Graph()
model.add(
layers.conv(layers.xaxier_initilizer, layers.zero_initilizer, 1, 1, 32,
4, 3, 3))
#model.add(layers.Relu())
model.add(
layers.conv(layers.xaxier_initilizer, layers.zero_initilizer, 1, 2, 16,
32, 3, 3))
#model.add(layers.Relu())
model.add(
layers.max_pooling(layers.xaxier_initilizer, layers.zero_initilizer, 0,
2, 2, 2))
model.add(layers.flatten())
model.add(
layers.FullConn(layers.xaxier_initilizer, layers.zero_initilizer,
(1024, 10)))
#model.add(layers.Relu())
crit = layers.softmax_with_loss()
y = np.array([1, 2, 3])
def foo(x):
logits = model.forward(x)
prob = crit.forward(logits)
dy, loss = crit.backward(logits, y)
dx = model.backward(x, dy)
return loss, dx
return foo
def __init__(self, sess, input_shape, num_actions, reuse=False, is_training=True, name='train'):
super().__init__(sess, reuse)
self.initial_state = []
with tf.name_scope(name + "policy_input"):
self.X_input = tf.placeholder(tf.uint8, input_shape)
with tf.variable_scope("policy", reuse=reuse):
conv1 = conv2d('conv1', tf.cast(self.X_input, tf.float32) / 255., num_filters=32, kernel_size=(8, 8),
padding='VALID', stride=(4, 4),
initializer=orthogonal_initializer(np.sqrt(2)), activation=tf.nn.relu,
is_training=is_training)
conv2 = conv2d('conv2', conv1, num_filters=64, kernel_size=(4, 4), padding='VALID', stride=(2, 2),
initializer=orthogonal_initializer(np.sqrt(2)), activation=tf.nn.relu,
is_training=is_training)
conv3 = conv2d('conv3', conv2, num_filters=64, kernel_size=(3, 3), padding='VALID', stride=(1, 1),
initializer=orthogonal_initializer(np.sqrt(2)), activation=tf.nn.relu,
is_training=is_training)
conv3_flattened = flatten(conv3)
fc4 = dense('fc4', conv3_flattened, output_dim=512, initializer=orthogonal_initializer(np.sqrt(2)),
activation=tf.nn.relu, is_training=is_training)
self.policy_logits = dense('policy_logits', fc4, output_dim=num_actions,
initializer=orthogonal_initializer(np.sqrt(1.0)), is_training=is_training)
self.value_function = dense('value_function', fc4, output_dim=1,
initializer=orthogonal_initializer(np.sqrt(1.0)), is_training=is_training)
with tf.name_scope('value'):
self.value_s = self.value_function[:, 0]
with tf.name_scope('action'):
self.action_s = noise_and_argmax(self.policy_logits)
def __call__(self, x, reuse=True, is_feature=False, is_training=True):
nb_downsampling = int(np.log2(self.input_shape[0] // 4))
with tf.variable_scope(self.name, reuse=reuse) as vs:
if reuse:
vs.reuse_variables()
_x = x
first_filters = 32
for i in range(nb_downsampling):
filters = first_filters * (2**i)
_x = conv_block(_x,
is_training=is_training,
filters=filters,
activation_='lrelu',
sampling='down',
normalization=self.normalization)
_x = flatten(_x)
if self.normalization == 'spectral':
_x = sn_dense(_x,
is_training=is_training,
units=1,
activation_=None)
else:
_x = dense(_x, units=1, activation_=None)
return _x
def network(x, weights, biases):
x = tf.reshape(x, shape=[-1, input_size_h, input_size_w, num_channels])
x = tf.subtract(x, mean)
x = tf.divide(x, std)
x = tf.expand_dims(x, axis=1)
x = tf.transpose(x, perm=[0, 4, 2, 3, 1])
conv0 = tf.nn.conv3d(x, weights["wc0"], strides=[1, 1, 1, 1, 1], padding="SAME")
conv0 = tf.nn.bias_add(conv0, biases["bc0"])
conv0 = tf.nn.relu(conv0)
conv0 = tf.transpose(conv0, perm=[0, 1, 4, 2, 3])
conv0 = tf.reshape(conv0, shape=[-1, 12, 192, 256])
conv0 = tf.transpose(conv0, perm=[0, 2, 3, 1])
conv1 = conv2d(conv0, weights["wc1"], biases["bc1"], strides=2)
conv2 = conv2d(conv1, weights["wc2"], biases["bc2"], strides=2)
conv3 = conv2d(conv2, weights["wc3"], biases["bc3"], strides=2)
conv4 = conv2d(conv3, weights["wc4"], biases["bc4"], strides=2)
conv5 = conv2d(conv4, weights["wc5"], biases["bc5"], strides=2)
conv6 = conv2d(conv5, weights["wc6"], biases["bc6"], strides=2)
fc1 = flatten(conv6)
fc1 = dense(fc1, weights["wd1"], biases["bd1"])
fc2 = dense(fc1, weights["wd2"], biases["bd2"])
fc3 = dense(fc2, weights["wd3"], biases["bd3"])
out = tf.add(tf.matmul(fc3, weights["out"]), biases["bias_out"])
return out
def build(self, input_shape=(28, 28, 1), classes=10):
inputs = keras.Input(shape=input_shape)
outputs = conv2d(filters=6, kernel_size=(6, 6))(inputs)
outputs = max_pooling2d(pool_size=(2, 2), strides=(2, 2))(outputs)
outputs = sigmoid()(outputs)
outputs = conv2d(filters=16, kernel_size=(6, 6))(inputs)
outputs = max_pooling2d(pool_size=(2, 2), strides=(2, 2))(outputs)
outputs = sigmoid()(outputs)
outputs = flatten()(outputs)
outputs = dense(120)(outputs)
outputs = sigmoid()(outputs)
outputs = dense(64)(outputs)
outputs = sigmoid()(outputs)
outputs = dense(classes)(outputs)
outputs = softmax()(outputs)
model = keras.Model(inputs, outputs)
model.summary()
return model
def discriminator(inp, reuse=False):
with tf.variable_scope('Encoder', reuse=reuse):
# 32
inp = gaussnoise(inp, std=0.05)
conv1 = conv2d(inp, 96, kernel=3, strides=1, name=dname + 'conv1')
conv1 = lrelu(conv1, 0.2)
conv1b = conv2d(conv1, 96, kernel=3, strides=2, name=dname + 'conv1b')
conv1b = batchnorm(conv1b, is_training=is_train, name=dname + 'bn1b')
conv1b = lrelu(conv1b, 0.2)
conv1b = tf.nn.dropout(conv1b, keep_prob)
# 16
conv2 = conv2d(conv1b, 192, kernel=3, strides=1, name=dname + 'conv2')
conv2 = batchnorm(conv2, is_training=is_train, name=dname + 'bn2')
conv2 = lrelu(conv2, 0.2)
conv2b = conv2d(conv2, 192, kernel=3, strides=2, name=dname + 'conv2b')
conv2b = batchnorm(conv2b, is_training=is_train, name=dname + 'bn2b')
conv2b = lrelu(conv2b, 0.2)
conv2b = tf.nn.dropout(conv2b, keep_prob)
# 8
conv3 = conv2d(conv2b, 256, kernel=3, strides=1, name=dname + 'conv3')
conv3 = batchnorm(conv3, is_training=is_train, name=dname + 'bn3')
conv3 = lrelu(conv3, 0.2)
conv3b = conv2d(conv3, 256, kernel=1, strides=1, name=dname + 'conv3b')
conv3b = batchnorm(conv3b, is_training=is_train, name=dname + 'bn3b')
conv3b = lrelu(conv3b, 0.2)
conv4 = conv2d(conv3b, 512, kernel=1, strides=1, name=dname + 'conv4')
conv4 = batchnorm(conv4, is_training=is_train, name=dname + 'bn4')
conv4 = lrelu(conv4, 0.2)
flat = flatten(conv4)
# Classifier
clspred = linear(flat, n_classes, name=dname + 'cpred')
# Decoder
g2 = conv2d(conv4, nout=256, kernel=3, name=dname + 'deconv2')
g2 = batchnorm(g2, is_training=tf.constant(True), name=dname + 'bn2g')
g2 = lrelu(g2, 0.2)
g3 = nnupsampling(g2, [16, 16])
g3 = conv2d(g3, nout=128, kernel=3, name=dname + 'deconv3')
g3 = batchnorm(g3, is_training=tf.constant(True), name=dname + 'bn3g')
g3 = lrelu(g3, 0.2)
g3b = conv2d(g3, nout=128, kernel=3, name=dname + 'deconv3b')
g3b = batchnorm(g3b,
is_training=tf.constant(True),
name=dname + 'bn3bg')
g3b = lrelu(g3b, 0.2)
g4 = nnupsampling(g3b, [32, 32])
g4 = conv2d(g4, nout=64, kernel=3, name=dname + 'deconv4')
g4 = batchnorm(g4, is_training=tf.constant(True), name=dname + 'bn4g')
g4 = lrelu(g4, 0.2)
g4b = conv2d(g4, nout=3, kernel=3, name=dname + 'deconv4b')
g4b = tf.nn.tanh(g4b)
return clspred, g4b
def __build(self):
self.__init_global_epoch()
self.__init_global_step()
self.__init_input()
with tf.name_scope('Preprocessing'):
red, green, blue = tf.split(self.X, num_or_size_splits=3, axis=3)
preprocessed_input = tf.concat([
tf.subtract(blue, ShuffleNet.MEAN[0]) * ShuffleNet.NORMALIZER,
tf.subtract(green, ShuffleNet.MEAN[1]) * ShuffleNet.NORMALIZER,
tf.subtract(red, ShuffleNet.MEAN[2]) * ShuffleNet.NORMALIZER,
], 3)
x_padded = tf.pad(preprocessed_input, [[0, 0], [1, 1], [1, 1], [0, 0]], "CONSTANT")
conv1 = conv2d('conv1', x=x_padded, w=None, num_filters=self.output_channels['conv1'], kernel_size=(3, 3),
stride=(2, 2), l2_strength=self.args.l2_strength, bias=self.args.bias,
batchnorm_enabled=self.args.batchnorm_enabled, is_training=self.is_training,
activation=tf.nn.relu, padding='VALID')
padded = tf.pad(conv1, [[0, 0], [0, 1], [0, 1], [0, 0]], "CONSTANT")
max_pool = max_pool_2d(padded, size=(3, 3), stride=(2, 2), name='max_pool')
stage2 = self.__stage(max_pool, stage=2, repeat=3)
stage3 = self.__stage(stage2, stage=3, repeat=7)
stage4 = self.__stage(stage3, stage=4, repeat=3)
global_pool = avg_pool_2d(stage4, size=(7, 7), stride=(1, 1), name='global_pool', padding='VALID')
logits_unflattened = conv2d('fc', global_pool, w=None, num_filters=self.args.num_classes,
kernel_size=(1, 1),
l2_strength=self.args.l2_strength,
bias=self.args.bias,
is_training=self.is_training)
self.logits = flatten(logits_unflattened)
self.__init_output()
def discriminator(inp, reuse=False):
with tf.variable_scope('Encoder', reuse=reuse):
# 64
inp = gaussnoise(inp, std=0.05)
conv1 = conv2d(inp, 128, kernel=3, strides=2, name=dname + 'conv1')
conv1 = lrelu(conv1, 0.2)
# 32
conv2 = tf.nn.dropout(conv1, keep_prob)
conv2 = conv2d(conv2, 256, kernel=3, strides=2, name=dname + 'conv2')
conv2 = batchnorm(conv2, is_training=is_train, name=dname + 'bn2')
conv2 = lrelu(conv2, 0.2)
# 16
conv3 = tf.nn.dropout(conv2, keep_prob)
conv3 = conv2d(conv3, 512, kernel=3, strides=2, name=dname + 'conv3')
conv3 = batchnorm(conv3, is_training=is_train, name=dname + 'bn3')
conv3 = lrelu(conv3, 0.2)
# 8
conv3b = conv2d(conv3, 512, kernel=3, strides=1, name=dname + 'conv3b')
conv3b = batchnorm(conv3b, is_training=is_train, name=dname + 'bn3b')
conv3b = lrelu(conv3b, 0.2)
conv4 = tf.nn.dropout(conv3b, keep_prob)
conv4 = conv2d(conv4, 1024, kernel=3, strides=2, name=dname + 'conv4')
conv4 = batchnorm(conv4, is_training=is_train, name=dname + 'bn4')
conv4 = lrelu(conv4, 0.2)
# 4
flat = flatten(conv4)
# Classifier
clspred = linear(flat, n_classes, name=dname + 'cpred')
# Decoder
g1 = conv2d(conv4, nout=512, kernel=3, name=dname + 'deconv1')
g1 = batchnorm(g1, is_training=tf.constant(True), name=dname + 'bn1g')
g1 = lrelu(g1, 0.2)
g2 = nnupsampling(g1, [8, 8])
g2 = conv2d(g2, nout=256, kernel=3, name=dname + 'deconv2')
g2 = batchnorm(g2, is_training=tf.constant(True), name=dname + 'bn2g')
g2 = lrelu(g2, 0.2)
g3 = nnupsampling(g2, [16, 16])
g3 = conv2d(g3, nout=128, kernel=3, name=dname + 'deconv3')
g3 = batchnorm(g3, is_training=tf.constant(True), name=dname + 'bn3g')
g3 = lrelu(g3, 0.2)
g4 = nnupsampling(g3, [32, 32])
g4 = conv2d(g4, nout=64, kernel=3, name=dname + 'deconv4')
g4 = batchnorm(g4, is_training=tf.constant(True), name=dname + 'bn4g')
g4 = lrelu(g4, 0.2)
g5 = nnupsampling(g4, [64, 64])
g5 = conv2d(g5, nout=32, kernel=3, name=dname + 'deconv5')
g5 = batchnorm(g5, is_training=tf.constant(True), name=dname + 'bn5g')
g5 = lrelu(g5, 0.2)
g5b = conv2d(g5, nout=3, kernel=3, name=dname + 'deconv5b')
g5b = tf.nn.tanh(g5b)
return clspred, g5b
def __call__(self, x, reuse=False):
with tf.variable_scope(self.name) as vs:
if reuse:
vs.reuse_variables()
with tf.variable_scope('Encoder'):
_x = conv_block(x,
filters=16,
sampling='same',
**self.conv_block_params)
_x = conv_block(_x,
filters=16,
sampling='down',
**self.conv_block_params)
_x = conv_block(_x,
filters=32,
sampling='same',
**self.conv_block_params)
_x = conv_block(_x,
filters=32,
sampling='down',
**self.conv_block_params)
current_shape = _x.get_shape().as_list()[1:]
_x = flatten(_x)
_x = dense(_x, 512, activation_='lrelu')
encoded = dense(_x, self.latent_dim)
with tf.variable_scope('Decoder'):
_x = dense(encoded, 512, activation_='lrelu')
_x = dense(_x,
current_shape[0] * current_shape[1] *
current_shape[2],
activation_='lrelu')
_x = reshape(_x, current_shape)
_x = conv_block(_x,
filters=32,
sampling=self.upsampling,
**self.conv_block_params)
_x = conv_block(_x,
filters=16,
sampling='same',
**self.conv_block_params)
_x = conv_block(_x,
filters=16,
sampling=self.upsampling,
**self.conv_block_params)
_x = conv_block(_x,
filters=self.channel,
sampling='same',
**self.last_conv_block_params)
return encoded, _x
def classifier_main(self, inputs, classes):
outputs = average_pooling2d(pool_size=(7, 7),
strides=1,
padding='valid')(inputs)
outputs = flatten()(outputs)
outputs = dropout(0.4)(outputs)
outputs = dense(classes)(outputs)
outputs = softmax()(outputs)
return outputs
def __build(self):
self.__init_global_epoch()
self.__init_global_step()
self.__init_input()
with tf.name_scope('Preprocessing'):
red, green, blue = tf.split(self.X, num_or_size_splits=3, axis=3)
preprocessed_input = tf.concat([
tf.subtract(blue, ShuffleNet.MEAN[0]) * ShuffleNet.NORMALIZER,
tf.subtract(green, ShuffleNet.MEAN[1]) * ShuffleNet.NORMALIZER,
tf.subtract(red, ShuffleNet.MEAN[2]) * ShuffleNet.NORMALIZER,
], 3)
x_padded = tf.pad(preprocessed_input, [[0, 0], [1, 1], [1, 1], [0, 0]],
"CONSTANT")
conv1 = conv2d('conv1',
x=x_padded,
w=None,
num_filters=self.output_channels['conv1'],
kernel_size=(3, 3),
stride=(2, 2),
l2_strength=self.args.l2_strength,
bias=self.args.bias,
batchnorm_enabled=self.args.batchnorm_enabled,
is_training=self.is_training,
activation=tf.nn.relu,
padding='VALID')
padded = tf.pad(conv1, [[0, 0], [0, 1], [0, 1], [0, 0]], "CONSTANT")
max_pool = max_pool_2d(padded,
size=(3, 3),
stride=(2, 2),
name='max_pool')
stage2 = self.__stage(max_pool, stage=2, repeat=3)
stage3 = self.__stage(stage2, stage=3, repeat=7)
stage4 = self.__stage(stage3, stage=4, repeat=3)
global_pool = avg_pool_2d(stage4,
size=(7, 7),
stride=(1, 1),
name='global_pool',
padding='VALID')
logits_unflattened = conv2d('fc',
global_pool,
w=None,
num_filters=self.args.num_classes,
kernel_size=(1, 1),
l2_strength=self.args.l2_strength,
bias=self.args.bias,
is_training=self.is_training)
self.logits = flatten(logits_unflattened)
self.__init_output()
def attention_estimator(x, g):
with tf.variable_scope(None, 'attention_estimator'):
_, height, width, x_dim = x.get_shape().as_list()
g_dim = g.get_shape().as_list()[-1]
if not x_dim == g_dim:
x = dense(x, g_dim, use_bias=False)
c = tf.reduce_sum(x * tf.expand_dims(tf.expand_dims(g, 1), 1), axis=-1)
a = tf.nn.softmax(flatten(c))
a = tf.reshape(a, (-1, height, width))
g_out = x * tf.expand_dims(a, -1)
g_out = tf.reduce_sum(g_out, axis=[1, 2])
return g_out, a
def __call__(self, x, reuse=True, is_feature=False, is_training=True):
nb_downsampling = int(np.log2(self.input_shape[0] // 4))
nb_blocks = [2]
if nb_downsampling - 2 > 0:
nb_blocks += [4] * (nb_downsampling - 2)
with tf.variable_scope(self.name) as vs:
if reuse:
vs.reuse_variables()
first_conv_channel = 32
_x = conv_block(x,
is_training=is_training,
filters=first_conv_channel,
activation_='lrelu',
kernel_size=(4, 4),
sampling='down',
normalization=self.normalization)
for index, nb_block in enumerate(nb_blocks):
for i in range(nb_block):
_x = discriminator_block(_x,
is_training=is_training,
filters=first_conv_channel *
(2**index),
activation_='lrelu',
kernel_size=(3, 3),
normalization=self.normalization,
residual=True)
_x = conv_block(_x,
is_training=is_training,
filters=first_conv_channel * (2**(index + 1)),
activation_='lrelu',
kernel_size=(4, 4) if index < 2 else (3, 3),
sampling='down',
normalization=self.normalization)
if is_feature:
return _x
_x = flatten(_x)
if self.normalization == 'spectral':
_x = sn_dense(_x,
is_training=is_training,
units=1,
activation_=None)
else:
_x = dense(_x, units=1, activation_=None)
return _x
def __call__(self, x, is_training=True, reuse=False, *args, **kwargs):
with tf.variable_scope(self.__class__.__name__) as vs:
if reuse:
vs.reuse_variables()
conv_params = {'is_training': is_training, 'activation_': 'relu'}
x = conv_block(x, 16, **conv_params)
x = conv_block(x, 16, **conv_params, sampling='pool')
x = conv_block(x, 32, **conv_params)
x = conv_block(x, 32, **conv_params, sampling='pool')
x = flatten(x)
x = dense(x, 512, activation_='relu')
x = dense(x, self.nb_classes)
return x
def inference(self):
print('input_shape:', self.X.shape.as_list())
conv1 = conv3d('conv1',
x=self.X,
w=None,
num_filters=self.output_channels['conv1'],
kernel_size=(3, 3, 3),
stride=(1, 2, 2),
l2_strength=L2_DECAY,
bias=0.0,
batchnorm_enabled=True,
is_training=self.is_training,
activation=tf.nn.relu,
padding='SAME')
print('conv1_shape:', conv1.shape.as_list())
max_pool = max_pool_3d(conv1,
size=(3, 3, 3),
stride=(2, 2, 2),
name='max_pool')
print('max3d_shape:', max_pool.shape.as_list())
stage2 = self.__stage(max_pool, stage=2, repeat=3)
print('stag2_shape:', stage2.shape.as_list())
stage3 = self.__stage(stage2, stage=3, repeat=7)
print('stag3_shape:', stage3.shape.as_list())
stage4 = self.__stage(stage3, stage=4, repeat=3)
print('stag4_shape:', stage4.shape.as_list())
global_pool = avg_pool_3d(stage4,
size=(1, 5, 5),
stride=(1, 1, 1),
name='global_pool',
padding='VALID')
print('avg3d_shape:', global_pool.shape.as_list())
drop_out = dropout(global_pool,
is_training=self.is_training,
keep_prob=0.5)
logits_unflattened = conv3d('fc',
drop_out,
w=None,
num_filters=NUM_CLASS,
kernel_size=(1, 1, 1),
l2_strength=L2_DECAY,
bias=0.0,
is_training=self.is_training)
print('convn_shape:', logits_unflattened.shape.as_list())
logits = flatten(logits_unflattened)
print('fc_re_shape:', logits.shape.as_list())
return logits
def discriminator(self,input, reuse = True):
depth = [64,128,256,512,1]
with tf.variable_scope("Discriminator", reuse = reuse):
with tf.variable_scope("d_1", reuse= reuse):
net = lrelu(layers.batch_norm(layers.dc_conv(input, depth[0],'d_w1')))
with tf.variable_scope("d_2", reuse=reuse):
net = lrelu(layers.batch_norm(layers.dc_conv(net, depth[1],'d_w2')))
with tf.variable_scope("d_3",reuse=reuse):
net = lrelu(layers.batch_norm(layers.dc_conv(net, depth[2],'d_w3')))
with tf.variable_scope("d_4", reuse= reuse):
net = lrelu(layers.batch_norm(layers.dc_conv(net, depth[3],'d_w4')))
with tf.variable_scope("d_5", reuse = reuse):
net = layers.flatten(net)
net = layers.dc_dense(net, 1,name = "d_fc")
return net
def classifier_aux(self, inputs, classes):
filters = 128
outputs = average_pooling2d(pool_size=(5, 5),
strides=3,
padding='valid')(inputs)
outputs = conv2d(filters=filters,
kernel_size=(1, 1),
strides=1,
padding='same')(outputs)
outputs = flatten()(outputs)
outputs = relu()(outputs)
outputs = dense(1024)(outputs)
outputs = relu()(outputs)
outputs = dropout(0.7)(outputs)
outputs = dense(classes)(outputs)
outputs = softmax()(outputs)
return outputs
def build(self, input_shape=(28, 28, 1), classes=10):
inputs = keras.Input(shape=input_shape)
outputs = flatten()(inputs)
outputs = dense(300)(outputs)
outputs = sigmoid()(outputs)
outputs = dense(100)(outputs)
outputs = sigmoid()(outputs)
outputs = dense(10)(outputs)
outputs = softmax()(outputs)
model = keras.Model(inputs, outputs)
model.summary()
return model
def __call__(self, x,
is_training=True,
reuse=False,
*args,
**kwargs):
with tf.variable_scope(self.__class__.__name__) as vs:
if reuse:
vs.reuse_variables()
conv_params = {'is_training': is_training,
'activation_': 'relu',
'normalization': 'batch'}
x = conv_block(x, 64, **conv_params, dropout_rate=0.3)
x = conv_block(x, 64, **conv_params, dropout_rate=0.3)
x = conv_block(x, 128, **conv_params, dropout_rate=0.4)
x = conv_block(x, 128, **conv_params, dropout_rate=0.4)
x = conv_block(x, 256, **conv_params, dropout_rate=0.4)
x = conv_block(x, 256, **conv_params, dropout_rate=0.4)
x = conv_block(x, 256, **conv_params)
l1 = x
x = max_pool2d(x)
x = conv_block(x, 512, **conv_params, dropout_rate=0.4)
x = conv_block(x, 512, **conv_params, dropout_rate=0.4)
x = conv_block(x, 512, **conv_params)
l2 = x
x = max_pool2d(x)
x = conv_block(x, 512, **conv_params, dropout_rate=0.4)
x = conv_block(x, 512, **conv_params, dropout_rate=0.4)
x = conv_block(x, 512, **conv_params)
l3 = x
x = max_pool2d(x)
x = conv_block(x, 512, **conv_params, sampling='pool')
x = conv_block(x, 512, **conv_params, sampling='pool')
x = flatten(x)
g = dense(x, 512, activation_='relu')
x, attentions = attention_module([l1, l2, l3], g)
x = dense(x, self.nb_classes)
return x, attentions
def __init__(
self,
blocks,
filters,
bottleneck=False,
input_layers=[
batch_normalization(),
relu(),
conv2d(filters=64, kernel_size=(7, 7), strides=2),
],
output_layers=[average_pooling2d(pool_size=(2, 2)),
flatten()]):
self.blocks = blocks
self.filters = filters
self.bottleneck = bottleneck
self.bn_axis = -1 if keras.backend.image_data_format(
) == 'channels_last' else 1
self.input_layers = input_layers
self.output_layer = output_layers
def __build(self):
self.__init_global_epoch()
self.__init_global_step()
self.__init_input()
# 0. 图像预处理 减去均值 乘以归一化系数##################################
with tf.name_scope('Preprocessing'):
# 分割成三通道
red, green, blue = tf.split(self.X, num_or_size_splits=3, axis=3)
# 每个通道 减去均值 乘以归一化系数 后再concat/merge 通道扩展合并
preprocessed_input = tf.concat([
tf.subtract(blue, ShuffleNet.MEAN[0]) * ShuffleNet.NORMALIZER,
tf.subtract(green, ShuffleNet.MEAN[1]) * ShuffleNet.NORMALIZER,
tf.subtract(red, ShuffleNet.MEAN[2]) * ShuffleNet.NORMALIZER,
], 3)
# 1. conv1 3*3*3*24 卷积 步长 2 BN RELU #########################################################
######## 周围填充
x_padded = tf.pad(preprocessed_input, [[0, 0], [1, 1], [1, 1], [0, 0]], "CONSTANT")
######## conv
conv1 = conv2d('conv1', x=x_padded, w=None, num_filters=self.output_channels['conv1'], kernel_size=(3, 3),
stride=(2, 2), l2_strength=self.args.l2_strength, bias=self.args.bias,
batchnorm_enabled=self.args.batchnorm_enabled, is_training=self.is_training,
activation=tf.nn.relu, padding='VALID')
# 2. 最大值池化 3*3 步长2 ##################################################
padded = tf.pad(conv1, [[0, 0], [0, 1], [0, 1], [0, 0]], "CONSTANT")
max_pool = max_pool_2d(padded, size=(3, 3), stride=(2, 2), name='max_pool')
# 3. 一次 步长为2 非分组点卷积 concate通道扩展合并模块， 再进行3次步长为1的 add通道叠加模块
stage2 = self.__stage(max_pool, stage=2, repeat=3)
# 4. 一次 步长为2 分组点卷积 concate通道扩展合并模块， 再进行7次步长为1的 add通道叠加模块
stage3 = self.__stage(stage2, stage=3, repeat=7)
# 5. 一次 步长为2 分组点卷积 concate通道扩展合并模块， 再进行3次步长为1的 add通道叠加模块
stage4 = self.__stage(stage3, stage=4, repeat=3)
# 6. 全局均值池化层 7*7 池化核 步长1
global_pool = avg_pool_2d(stage4, size=(7, 7), stride=(1, 1), name='global_pool', padding='VALID')
# 7. 1*1点卷积 输出 类别数量个 卷积特征图
logits_unflattened = conv2d('fc', global_pool, w=None, num_filters=self.args.num_classes,
kernel_size=(1, 1),# 1*1点卷积
l2_strength=self.args.l2_strength,
bias=self.args.bias,
is_training=self.is_training)
# 8. 摊平 到 一维
self.logits = flatten(logits_unflattened)
# 9. 计算误差
self.__init_output()
def ConvNet(x,
input_shape,
filters_out=64,
n_classes=10,
non_linearity='relu'):
# Basic CNN from Cleverhans MNIST tutorial:
# https://github.com/mmarius/cleverhans/blob/master/cleverhans_tutorials/tutorial_models.py#L155
h = x
input_shape = list(input_shape)
h, output_shape = l.conv2d(h,
kernel_size=8,
stride=2,
filters_in=input_shape[-1],
filters_out=filters_out,
padding='SAME',
name='conv1')
h = l.non_linearity(h, name=non_linearity)
h, output_shape = l.conv2d(h,
kernel_size=6,
stride=2,
filters_in=output_shape[-1],
filters_out=filters_out * 2,
padding='VALID',
name='conv2')
h = l.non_linearity(h, name=non_linearity)
h, output_shape = l.conv2d(h,
kernel_size=5,
stride=1,
filters_in=output_shape[-1],
filters_out=filters_out * 2,
padding='VALID',
name='conv3')
h = l.non_linearity(h, name=non_linearity)
h, output_shape = l.flatten(input_shape=output_shape, x=h)
logits, output_shape = l.linear(input_shape=output_shape,
n_hidden=n_classes,
x=h,
name='output-layer')
utils.variable_summaries(logits, name='unscaled-logits-output-layer')
return logits
def build_network(self, scope):
with tf.variable_scope(scope):
X = tf.placeholder(
shape=[None, cfg.height, cfg.width, cfg.state_length],
dtype=tf.float32)
conv1 = conv(X, [8, 8, cfg.state_length, 32], [1, 4, 4, 1],
activation_fn=tf.nn.relu,
scope="conv1")
conv2 = conv(conv1, [4, 4, 32, 64], [1, 2, 2, 1],
activation_fn=tf.nn.relu,
scope="conv2")
conv3 = conv(conv2, [3, 3, 64, 64], [1, 1, 1, 1],
activation_fn=tf.nn.relu,
scope="conv3")
flt, dim = flatten(conv3)
fc1 = fc(flt, dim, 512, activation_fn=tf.nn.relu, scope="fc1")
output = fc(fc1, 512, self.action_n, scope="output")
return X, output
def vgg_7(x, layers=3, base_channel=32, input_channel=2):
output_channel = input_channel
for i in range(layers):
x = conv2d(x, [3, 3, input_channel, output_channel], 'conv_0_'+str(i))
input_channel = output_channel
x = conv2d(x, [3, 3, input_channel, output_channel], 'conv_1_'+str(i))
input_channel = output_channel
output_channel *= 2
x = maxpooling(x)
x = flatten(x)
x = fully_connnected(x, 256, 'fc_1')
x = fully_connnected(x, 1, 'fc_2', activation='no')
logits = tf.squeeze(x)
return logits
def _model(self, X, reuse=False):
X = tf.cast(X, tf.float32)
with tf.variable_scope(self.scope, reuse=reuse):
"""
conv1 = conv(X, [9, 9, cfg.state_length, 256], [1, 1, 1, 1], activation_fn=tf.nn.relu)
primaryCaps = capsule(conv1, num_outputs=32, vec_len=8, kernel=9, strides=2)
digitCaps = capsule(primaryCaps, num_outputs=self.a, vec_len=16)
v_length = tf.sqrt(tf.reduce_sum(tf.square(digitCaps), axis=2, keepdims=True))
output = tf.squeeze(tf.nn.softmax(v_length, axis=1), axis=[2, 3])
"""
conv1 = conv(X, [8, 8, cfg.state_length, 32], [1, 4, 4, 1], activation_fn=tf.nn.relu, scope="conv1")
conv2 = conv(conv1, [4, 4, 32, 64], [1, 2, 2, 1], activation_fn=tf.nn.relu, scope="conv2")
conv3 = conv(conv2, [3, 3, 64, 64], [1, 1 ,1, 1], activation_fn=tf.nn.relu, scope="conv3")
flt, dim = flatten(conv3)
fc1 = fc(flt, dim, 512, activation_fn=tf.nn.relu, scope="fc1")
output = fc(fc1, 512, self.a, scope="output")
return output
def __build(self):
self.__init_global_epoch()
self.__init_global_step()
self.__init_input()
x_resized = self.__resize(self.X)
conv1 = conv2d('conv1', x=x_resized, w=None, num_filters=self.output_channels['conv1'], kernel_size=(3, 3),
stride=(2, 2), l2_strength=self.args.l2_strength, bias=self.args.bias,
batchnorm_enabled=self.args.batchnorm_enabled, is_training=self.is_training)
conv1_padded = tf.pad(conv1, [[0, 0], [1, 1], [1, 1], [0, 0]], "CONSTANT")
max_pool = max_pool_2d(conv1_padded, size=(3, 3), stride=(2, 2), name='max_pool')
stage2 = self.__stage(max_pool, stage=2, repeat=3)
stage3 = self.__stage(stage2, stage=3, repeat=7)
stage4 = self.__stage(stage3, stage=4, repeat=3)
global_pool = avg_pool_2d(stage4, size=(7, 7), stride=(1, 1), name='global_pool')
flattened = flatten(global_pool)
self.logits = dense('fc', flattened, w=None, output_dim=self.args.num_classes,
l2_strength=self.args.l2_strength,
bias=self.args.bias,
is_training=self.is_training)
self.__init_output()
def __init__(self,
input_layers=None,
outputs_layers=None,
inception_layers=None):
self.inception_version = 1
if input_layers is None:
self.input_layers = [
conv2d(filters=64,
kernel_size=(7, 7),
strides=2,
padding='same'),
max_pooling2d(pool_size=(3, 3), strides=2, padding='same'),
batch_normalization(),
conv2d(filters=192,
kernel_size=(1, 1),
strides=1,
padding='valid'),
conv2d(filters=192,
kernel_size=(3, 3),
strides=1,
padding='same'),
batch_normalization(),
max_pooling2d(pool_size=(3, 3), strides=2, padding='same')
]
else:
self.input_layers = input_layers
if outputs_layers is None:
self.output_layers = [
average_pooling2d(pool_size=(7, 7), strides=1,
padding='valid'),
flatten(),
dropout(0.4),
dense(1000),
softmax()
]
else:
self.output_layers = outputs_layers
def SimpleNet1(x,
input_shape,
neurons=1024,
n_classes=10,
non_linearity='relu',
create_summaries=True):
h = x
h, output_shape = l.flatten(input_shape, h)
h, output_shape = l.linear(output_shape, neurons, h, name='linear1')
if create_summaries:
utils.variable_summaries(h, name='linear-comb-hidden-layer')
h = l.non_linearity(h, name=non_linearity)
if create_summaries:
utils.variable_summaries(h, name='activation-hidden-layer')
sparsity = tf.nn.zero_fraction(h,
name='activation-hidden-layer-sparsity')
tf.summary.scalar(sparsity.op.name, sparsity)
logits, output_shape = l.linear(output_shape, n_classes, h, name='output')
if create_summaries:
utils.variable_summaries(logits, name='unscaled-logits-output-layer')
return logits
