def test_vbs1(self):
with tf.Graph().as_default():
# Data loading and preprocessing
import zqtflearn.datasets.mnist as mnist
X, Y, testX, testY = mnist.load_data(one_hot=True)
X = X.reshape([-1, 28, 28, 1])
testX = testX.reshape([-1, 28, 28, 1])
X = X[:20, :, :, :]
Y = Y[:20, :]
testX = testX[:10, :, :, :]
testY = testY[:10, :]
# Building convolutional network
network = input_data(shape=[None, 28, 28, 1], name='input')
network = conv_2d(network,
32,
3,
activation='relu',
regularizer="L2")
network = max_pool_2d(network, 2)
network = local_response_normalization(network)
network = conv_2d(network,
64,
3,
activation='relu',
regularizer="L2")
network = max_pool_2d(network, 2)
network = local_response_normalization(network)
network = fully_connected(network, 128, activation='tanh')
network = dropout(network, 0.8)
network = fully_connected(network, 256, activation='tanh')
network = dropout(network, 0.8)
network = fully_connected(network, 10, activation='softmax')
network = regression(network,
optimizer='adam',
learning_rate=0.01,
loss='categorical_crossentropy',
name='target')
# Training
model = zqtflearn.DNN(network, tensorboard_verbose=3)
model.fit({'input': X}, {'target': Y},
n_epoch=1,
batch_size=10,
validation_set=({
'input': testX
}, {
'target': testY
}),
validation_batch_size=5,
snapshot_step=10,
show_metric=True,
run_id='convnet_mnist_vbs')
self.assertEqual(model.train_ops[0].validation_batch_size, 5)
self.assertEqual(model.train_ops[0].batch_size, 10)
def test_vm1(self):
with tf.Graph().as_default():
# Data loading and preprocessing
import zqtflearn.datasets.mnist as mnist
X, Y, testX, testY = mnist.load_data(one_hot=True)
X = X.reshape([-1, 28, 28, 1])
testX = testX.reshape([-1, 28, 28, 1])
X = X[:10, :, :, :]
Y = Y[:10, :]
# Building convolutional network
network = input_data(shape=[None, 28, 28, 1], name='input')
network = conv_2d(network,
32,
3,
activation='relu',
regularizer="L2")
network = max_pool_2d(network, 2)
network = local_response_normalization(network)
network = conv_2d(network,
64,
3,
activation='relu',
regularizer="L2")
network = max_pool_2d(network, 2)
network = local_response_normalization(network)
network = fully_connected(network, 128, activation='tanh')
network = dropout(network, 0.8)
network = fully_connected(network, 256, activation='tanh')
network = dropout(network, 0.8)
# construct two varaibles to add as additional "valiation monitors"
# these varaibles are evaluated each time validation happens (eg at a snapshot)
# and the results are summarized and output to the tensorboard events file,
# together with the accuracy and loss plots.
#
# Here, we generate a dummy variable given by the sum over the current
# network tensor, and a constant variable. In practice, the validation
# monitor may present useful information, like confusion matrix
# entries, or an AUC metric.
with tf.name_scope('CustomMonitor'):
test_var = tf.reduce_sum(tf.cast(network, tf.float32),
name="test_var")
test_const = tf.constant(32.0, name="custom_constant")
print("network=%s, test_var=%s" % (network, test_var))
network = fully_connected(network, 10, activation='softmax')
network = regression(network,
optimizer='adam',
learning_rate=0.01,
loss='categorical_crossentropy',
name='target',
validation_monitors=[test_var, test_const])
# Training
model = zqtflearn.DNN(network, tensorboard_verbose=3)
model.fit({'input': X}, {'target': Y},
n_epoch=1,
validation_set=({
'input': testX
}, {
'target': testY
}),
snapshot_step=10,
show_metric=True,
run_id='convnet_mnist')
# check for validation monitor variables
ats = tf.get_collection("Adam_testing_summaries")
print("ats=%s" % ats)
self.assertTrue(
len(ats) == 4
) # should be four variables being summarized: [loss, test_var, test_const, accuracy]
session = model.session
print("session=%s" % session)
trainer = model.trainer
print("train_ops = %s" % trainer.train_ops)
top = trainer.train_ops[0]
vmtset = top.validation_monitors_T
print("validation_monitors_T = %s" % vmtset)
with model.session.as_default():
ats_var_val = zqtflearn.variables.get_value(vmtset[0])
ats_const_val = zqtflearn.variables.get_value(vmtset[1])
print("summary values: var=%s, const=%s" %
(ats_var_val, ats_const_val))
self.assertTrue(
ats_const_val ==
32) # test to make sure the constant made it through
if activation:
if isinstance(activation, str):
net = activations.get(activation)(net)
elif hasattr(activation, '__call__'):
net = activation(net)
else:
raise ValueError("Invalid Activation.")
return net
X, Y = oxflower17.load_data(one_hot=True, resize_pics=(299, 299))
num_classes = 17
dropout_keep_prob = 0.8
network = input_data(shape=[None, 299, 299, 3])
conv1a_3_3 = relu(
batch_normalization(
conv_2d(network,
32,
3,
strides=2,
bias=False,
padding='VALID',
activation=None,
name='Conv2d_1a_3x3')))
conv2a_3_3 = relu(
batch_normalization(
conv_2d(conv1a_3_3,
32,
3,
""" from __future__ import division, print_function, absolute_import import zqtflearn from zqtflearn.layers.core import input_data, dropout, fully_connected from zqtflearn.layers.conv import conv_2d, max_pool_2d from zqtflearn.layers.estimator import regression # Data loading and preprocessing import zqtflearn.datasets.oxflower17 as oxflower17 X, Y = oxflower17.load_data(one_hot=True) # Building 'VGG Network' network = input_data(shape=[None, 224, 224, 3]) network = conv_2d(network, 64, 3, activation='relu') network = conv_2d(network, 64, 3, activation='relu') network = max_pool_2d(network, 2, strides=2) network = conv_2d(network, 128, 3, activation='relu') network = conv_2d(network, 128, 3, activation='relu') network = max_pool_2d(network, 2, strides=2) network = conv_2d(network, 256, 3, activation='relu') network = conv_2d(network, 256, 3, activation='relu') network = conv_2d(network, 256, 3, activation='relu') network = max_pool_2d(network, 2, strides=2) network = conv_2d(network, 512, 3, activation='relu')
train, test, _ = imdb.load_data(path='imdb.pkl',
n_words=10000,
valid_portion=0.1)
trainX, trainY = train
testX, testY = test
# Data preprocessing
# Sequence padding
trainX = pad_sequences(trainX, maxlen=100, value=0.)
testX = pad_sequences(testX, maxlen=100, value=0.)
# Converting labels to binary vectors
trainY = to_categorical(trainY)
testY = to_categorical(testY)
# Building convolutional network
network = input_data(shape=[None, 100], name='input')
network = zqtflearn.embedding(network, input_dim=10000, output_dim=128)
branch1 = conv_1d(network,
128,
3,
padding='valid',
activation='relu',
regularizer="L2")
branch2 = conv_1d(network,
128,
4,
padding='valid',
activation='relu',
regularizer="L2")
branch3 = conv_1d(network,
128,
from __future__ import division, print_function, absolute_import
import zqtflearn
from zqtflearn.layers.core import input_data, dropout, fully_connected
from zqtflearn.layers.conv import highway_conv_2d, max_pool_2d
from zqtflearn.layers.normalization import local_response_normalization, batch_normalization
from zqtflearn.layers.estimator import regression
# Data loading and preprocessing
import zqtflearn.datasets.mnist as mnist
X, Y, testX, testY = mnist.load_data(one_hot=True)
X = X.reshape([-1, 28, 28, 1])
testX = testX.reshape([-1, 28, 28, 1])
# Building convolutional network
network = input_data(shape=[None, 28, 28, 1], name='input')
#highway convolutions with pooling and dropout
for i in range(3):
for j in [3, 2, 1]:
network = highway_conv_2d(network, 16, j, activation='elu')
network = max_pool_2d(network, 2)
network = batch_normalization(network)
network = fully_connected(network, 128, activation='elu')
network = fully_connected(network, 256, activation='elu')
network = fully_connected(network, 10, activation='softmax')
network = regression(network,
optimizer='adam',
learning_rate=0.01,
loss='categorical_crossentropy',
name='target')
Y = to_categorical(Y)
Y_test = to_categorical(Y_test)
# Real-time data preprocessing
img_prep = ImagePreprocessing()
img_prep.add_featurewise_zero_center()
img_prep.add_featurewise_stdnorm()
# Real-time data augmentation
img_aug = ImageAugmentation()
img_aug.add_random_flip_leftright()
img_aug.add_random_rotation(max_angle=25.)
# Convolutional network building
network = input_data(shape=[None, 32, 32, 3],
data_preprocessing=img_prep,
data_augmentation=img_aug)
network = conv_2d(network, 32, 3, activation='relu')
network = max_pool_2d(network, 2)
network = conv_2d(network, 64, 3, activation='relu')
network = conv_2d(network, 64, 3, activation='relu')
network = max_pool_2d(network, 2)
network = fully_connected(network, 512, activation='relu')
network = dropout(network, 0.5)
network = fully_connected(network, 10, activation='softmax')
network = regression(network, optimizer='adam',
loss='categorical_crossentropy',
learning_rate=0.001)
# Train using classifier
model = zqtflearn.DNN(network, tensorboard_verbose=0)
from zqtflearn.layers.embedding_ops import embedding
from zqtflearn.layers.recurrent import bidirectional_rnn, BasicLSTMCell
from zqtflearn.layers.estimator import regression
# IMDB Dataset loading
train, test, _ = imdb.load_data(path='imdb.pkl',
n_words=10000,
valid_portion=0.1)
trainX, trainY = train
testX, testY = test
# Data preprocessing
# Sequence padding
trainX = pad_sequences(trainX, maxlen=200, value=0.)
testX = pad_sequences(testX, maxlen=200, value=0.)
# Converting labels to binary vectors
trainY = to_categorical(trainY)
testY = to_categorical(testY)
# Network building
net = input_data(shape=[None, 200])
net = embedding(net, input_dim=20000, output_dim=128)
net = bidirectional_rnn(net, BasicLSTMCell(128), BasicLSTMCell(128))
net = dropout(net, 0.5)
net = fully_connected(net, 2, activation='softmax')
net = regression(net, optimizer='adam', loss='categorical_crossentropy')
# Training
model = zqtflearn.DNN(net, clip_gradients=0., tensorboard_verbose=2)
model.fit(trainX, trainY, validation_set=0.1, show_metric=True, batch_size=64)
""" Very Deep Convolutional Networks for Large-Scale Visual Recognition.
Applying VGG 19-layers convolutional network to Imagenet classification task.
References:
Very Deep Convolutional Networks for Large-Scale Image Recognition.
K. Simonyan, A. Zisserman. arXiv technical report, 2014.
Links:
http://arxiv.org/pdf/1409.1556
"""
import zqtflearn
from zqtflearn.layers.core import input_data, dropout, fully_connected
from zqtflearn.layers.conv import conv_2d, max_pool_2d
from zqtflearn.layers.estimator import regression
# Building 'VGG Network'
input_layer = input_data(shape=[None, 224, 224, 3])
block1_conv1 = conv_2d(input_layer,
64,
3,
activation='relu',
name='block1_conv1')
block1_conv2 = conv_2d(block1_conv1,
64,
3,
activation='relu',
name='block1_conv2')
block1_pool = max_pool_2d(block1_conv2, 2, strides=2, name='block1_pool')
block2_conv1 = conv_2d(block1_pool,
128,
import zqtflearn from zqtflearn.data_utils import shuffle, to_categorical from zqtflearn.layers.core import input_data, dropout, flatten from zqtflearn.layers.conv import conv_2d, max_pool_2d, avg_pool_2d from zqtflearn.layers.estimator import regression # Data loading and preprocessing from zqtflearn.datasets import cifar10 (X, Y), (X_test, Y_test) = cifar10.load_data() X, Y = shuffle(X, Y) Y = to_categorical(Y) Y_test = to_categorical(Y_test) # Building 'Network In Network' network = input_data(shape=[None, 32, 32, 3]) network = conv_2d(network, 192, 5, activation='relu') network = conv_2d(network, 160, 1, activation='relu') network = conv_2d(network, 96, 1, activation='relu') network = max_pool_2d(network, 3, strides=2) network = dropout(network, 0.5) network = conv_2d(network, 192, 5, activation='relu') network = conv_2d(network, 192, 1, activation='relu') network = conv_2d(network, 192, 1, activation='relu') network = avg_pool_2d(network, 3, strides=2) network = dropout(network, 0.5) network = conv_2d(network, 192, 3, activation='relu') network = conv_2d(network, 192, 1, activation='relu') network = conv_2d(network, 10, 1, activation='relu') network = avg_pool_2d(network, 8) network = flatten(network)