def load_fashion_mnist_idx(data_type):
import mnist_reader
data_dir = 'datasets/fmnist/'
if data_type == "train":
X, y = mnist_reader.load_mnist(data_dir, kind='train')
elif data_type == "test" or data_type == "val":
X, y = mnist_reader.load_mnist(data_dir, kind='t10k')
if data_type == "test":
X = X[:4000,:]
y = y[:4000]
else:
X = X[4000:,:]
y = y[4000:]
X = X.reshape((X.shape[0],28,28,1))
X = X.astype(np.float)
y = y.astype(np.int)
idxUse = np.arange(0,y.shape[0])
seed = 547
np.random.seed(seed)
np.random.shuffle(X)
np.random.seed(seed)
np.random.shuffle(y)
np.random.seed(seed)
np.random.shuffle(idxUse)
return X/255.,y,idxUse
def load_fashion(data_dir):
X_train, y_train = mnist_reader.load_mnist(data_dir, kind='train')
X_test, y_test = mnist_reader.load_mnist(data_dir, kind='t10k')
train_images = []
test_images = []
train_labels = []
test_labels = []
for t, l in zip(X_train, y_train):
label = np.zeros((10))
label[l] = 1
train_labels.append(label)
t = normalize(t)
train_images.append(np.reshape(t, (28, 28, 1)))
for t, l in zip(X_test, y_test):
label = np.zeros((10))
label[l] = 1
test_labels.append(label)
t = normalize(t)
test_images.append(np.reshape(t, (28, 28, 1)))
return np.asarray(train_images), np.asarray(train_labels), np.asarray(
test_images), np.asarray(test_labels)
def main():
X_test, y_test = mnist_reader.load_mnist('data/fashion', kind='t10k')
X_train, y_train = mnist_reader.load_mnist('data/fashion', kind='train')
results = []
start = time.time()
for j in range(2):
if j ==0:
X_train, X_test = reduce_dimensionality_LDA()
if j ==1:
X_train, X_test, n = reduce_dimensionality_PCA()
end1 = time.time()
print('Dimensionality reduced to: ', X_train.shape[1])
Reduction_time = end1 - start
start = time.time()
params = ['linear']
train_accuracy, test_accuracy= compute_svm(X_train, y_train, X_test, y_test, params)
end = time.time()
Computation_time = end - start
results.append([j ,params, train_accuracy*100, test_accuracy*100, Reduction_time, Computation_time])
import tabulate
import csv
myFile = open('csvexample_linear.csv', 'w')
with myFile:
writer = csv.writer(myFile)
writer.writerows(results)
print(tabulate.tabulate(results))
def main():
file = 'out.txt'
train_data, train_labels = mnist_reader.load_mnist('data/fashion', kind='train')
train_data = 5 * (train_data / 255 - 0.5) / 0.5
test_data, test_labels = mnist_reader.load_mnist('data/fashion', kind='t10k')
test_data = 5 * (test_data / 255 - 0.5) / 0.5
clf = SVM(train_data, train_labels, test_data, test_labels, file)
clf.train('linear').test()
clf.train('polynomial').test()
clf.train('RBF').test()
pca = PCA(n_components=100)
pca.fit(train_data)
pca_train_data = pca.transform(train_data)
pca_test_data = pca.transform(test_data)
clf = SVM(pca_train_data, train_labels, pca_test_data, test_labels, file)
clf.train('linear').test()
clf.train('polynomial').test()
clf.train('RBF').test()
lda = LDA(n_components=9)
lda.fit(train_data, train_labels)
lda_train_data = lda.transform(train_data)
lda_test_data = lda.transform(test_data)
clf = SVM(lda_train_data, train_labels, lda_test_data, test_labels, file)
clf.train('linear').test()
clf.train('polynomial').test()
clf.train('RBF').test()
def logisticRegressionCustom(layer):
try:
layer = int(layer)
except Exception as e:
print(e)
if (layer > 3 or layer < 1):
print("Invalid Layer Number")
sys.exit(0)
from sklearn.linear_model import LogisticRegression
from sklearn.model_selection import train_test_split
import mnist_reader
X_train, y_train = mnist_reader.load_mnist('../data/fashion', kind='train')
X_train, X_valid, y_train, y_valid = train_test_split(X_train,
y_train,
test_size=(1 / 6),
random_state=48)
X_test, y_test = mnist_reader.load_mnist('../data/fashion', kind='t10k')
# Normalize input
X_train = -0.5 + (X_train / 255.0)
X_valid = -0.5 + (X_valid / 255.0)
X_test = -0.5 + (X_test / 255.0)
# Logits
tf.compat.v1.reset_default_graph()
saver = tf.compat.v1.train.import_meta_graph("weight/model.ckpt.meta")
x = tf.compat.v1.placeholder(tf.float64, [None, 784])
y_ = tf.compat.v1.placeholder(tf.float64, [None, 10])
with tf.compat.v1.Session() as sess:
saver.restore(sess, tf.train.latest_checkpoint("weight/"))
graph = tf.compat.v1.get_default_graph()
w1 = graph.get_tensor_by_name("w1:0")
b1 = graph.get_tensor_by_name("b1:0")
w2 = graph.get_tensor_by_name("w2:0")
b2 = graph.get_tensor_by_name("b2:0")
w3 = graph.get_tensor_by_name("w3:0")
b3 = graph.get_tensor_by_name("b3:0")
w4 = graph.get_tensor_by_name("w4:0")
b4 = graph.get_tensor_by_name("b4:0")
h1 = tf.add(tf.matmul(x, w1), b1)
h1 = reluActivation(h1)
h2 = tf.add(tf.matmul(h1, w2), b2)
h2 = reluActivation(h2)
h3 = tf.add(tf.matmul(h2, w3), b3)
h3 = reluActivation(h3)
if (layer == 1):
logisticTrain = sess.run(h1, feed_dict={x: X_train})
logisticTest = sess.run(h1, feed_dict={x: X_test})
elif (layer == 2):
logisticTrain = sess.run(h2, feed_dict={x: X_train})
logisticTest = sess.run(h2, feed_dict={x: X_test})
elif (layer == 3):
logisticTrain = sess.run(h3, feed_dict={x: X_train})
logisticTest = sess.run(h3, feed_dict={x: X_test})
logisticregression = LogisticRegression(max_iter=1000)
logisticregression.fit(logisticTrain, y_train)
test_prediction = logisticregression.predict(logisticTest)
print("Logistic Regression Output")
print('Using layer', layer, 'as input')
print("*" * 20)
print('Accuracy of logistic regression classifier on test set:',
logisticregression.score(logisticTest, y_test) * 100, "%")
def load_data():
X_train, y_train = mnist_reader.load_mnist('fashion', kind='train')
X_test, y_test = mnist_reader.load_mnist('fashion', kind='t10k')
data = {'Xval': X_test,
'Xtrain': X_train,
'yval': y_test,
'ytrain': y_train}
return data
def load_data():
base_dir = os.getcwd()
path = os.path.join(base_dir, "fashion")
print(path)
x_train, y_train = mnist_reader.load_mnist(
path, kind='train') # x,images; y,labels
x_test, y_test = mnist_reader.load_mnist(path, kind='t10k')
return x_train, y_train, x_test, y_test
def runCNN(params):
os.environ['TF_CPP_MIN_LOG_LEVEL'] = '3'
for key in params:
if 'Filter' in key or 'Kernel' in key:
params[key] = int(params[key])
num_classes = 10
filepath = os.path.dirname(os.path.abspath(__file__))+'/data/fashion/'
x_train, y_train = mnist_reader.load_mnist(filepath, kind='train')
x_test, y_test = mnist_reader.load_mnist(filepath, kind='t10k')
x_train = x_train.reshape((60000,28,28,1))
x_test = x_test.reshape((10000,28,28,1))
y_train = tf.keras.utils.to_categorical(y_train, num_classes=num_classes)
y_test = tf.keras.utils.to_categorical(y_test, num_classes=num_classes)
model = None
tf.reset_default_graph()
sess = tf.InteractiveSession()
model = tf.keras.Sequential()
model.add(Conv2D(params['layer1Filters'], params['layer1Kernel'], padding='same',
input_shape=x_train.shape[1:]))
model.add(Activation('relu'))
model.add(Conv2D(params['layer2Filters'], params['layer2Kernel']))
model.add(Activation('relu'))
model.add(MaxPooling2D(pool_size=(2, 2)))
model.add(Dropout(params['firstDropout']))
model.add(Conv2D(params['layer3Filters'], params['layer3Kernel'], padding='same'))
model.add(Activation('relu'))
model.add(Dropout(.5))
model.add(Conv2D(params['layer4Filters'], params['layer4Kernel']))
model.add(Activation('relu'))
model.add(MaxPooling2D(pool_size=(2, 2)))
model.add(Dropout(params['secondDropout']))
model.add(Flatten())
model.add(Dense(params['denseNodes']))
model.add(Activation('relu'))
model.add(Dropout(.3))
model.add(Dense(num_classes))
model.add(Activation('softmax'))
optimizer = Adam(lr=params['learningRate'])
model.compile(optimizer=optimizer,
loss='categorical_crossentropy',
metrics=['accuracy'])
for i in range(100):
model.fit(x=x_train, y=y_train, batch_size=params['batchSize'], epochs=1)
score = model.evaluate(x_test, y_test, batch_size=128)
print("Accuracy on Testing Data:",str(score[1]*100)+"%")
print("Hyperparameters: "+ str(params))
sess.close()
return {'loss': score[0], 'status': STATUS_OK }
def main():
x_train, y_train = mnist_reader.load_mnist("data/fashion", kind="train")
x_train = prepare_data(x_train)
x_train, y_train, x_validation, y_validation = segregate_data(
x_train, y_train)
config = {
"initialGuess": np.ones((len(labels), x_train.shape[1])),
"learningRate": 0.1,
"iterations": 1000
}
print(
f'Using learning rate = {config["learningRate"]} and {config["iterations"]} iterations'
)
start_time = time.time()
y_hot_encoding = one_hot_encode(y_train, len(labels))
# train
mlr = MultinomialLogisticRegression(config)
cost_iterations = mlr.fit(x_train, y_hot_encoding.T, "Multinomial",
cross_entropy)
title = "Multinomial"
file_name = "Multinomial"
plot_cost(cost_iterations, title, file_name, config["iterations"],
config["learningRate"])
# predict validation
print("Predicting for validation set...")
predictions = (mlr.predict(x_validation, "Multinomial"))
predicted_class = []
for pred in predictions:
ind = np.argmax(pred)
predicted_class.append(ind)
show_metrics(predicted_class, title, list(labels.keys()),
y_validation.tolist(), "ConfusionMatrixMultinomial")
# predict test
x_test, y_test = mnist_reader.load_mnist("data/fashion", kind="t10k")
x_test = np.c_[np.ones(x_test.shape[0]), x_test]
print("Predicting for test set...")
predictions = (mlr.predict(x_test, "Multinomial"))
predicted_class = []
for pred in predictions:
ind = np.argmax(pred)
predicted_class.append(ind)
show_metrics(predicted_class, title + " Test", list(labels.keys()),
y_test.tolist(), "ConfusionMatrixMultinomialTest")
elapsed_time = time.time() - start_time
print("Elapsed time: %1f s" % (elapsed_time))
def load_mnist_fashion():
x_train, y_train = mnist_reader.load_mnist('data/fashion', kind='train')
x_test, y_test = mnist_reader.load_mnist('data/fashion', kind='t10k')
# normalize our inputs to be in the range[-1, 1]
x_train = (x_train.astype(np.float32) - 127.5) / 127.5
# convert x_train with a shape of (n_imgs, height, width)
# to (n_imgs, height*width)
x_height_width = (28, 28)
return (x_train, y_train, x_test, y_test), x_height_width
def load_data_wrapper():
x_train, y_train = mnist_reader.load_mnist('./data/fashion', kind='train')
x_train_v = [np.reshape(x, (784, 1)) for x in x_train]
y_train_v = [vectorized_result(y) for y in y_train]
train_dataset = list(zip(x_train_v, y_train_v))
x_test, y_test = mnist_reader.load_mnist('./data/fashion', kind='t10k')
x_test_v = [np.reshape(x, (784, 1)) for x in x_test]
#y_test_v = [vectorized_result(y) for y in y_test]
test_dataset = list(zip(x_test_v, y_test))
return train_dataset, test_dataset
def model_fashion():
path = './fashion-mnist/data/fashion'
X_train, y_train = mnist_reader.load_mnist(path, kind='train')
X_test, y_test = mnist_reader.load_mnist(path, kind='t10k')
X_train = X_train.astype('float32').reshape(-1, 28, 28, 1)
X_test = X_test.astype('float32').reshape(-1, 28, 28, 1)
X_train /= 255
X_test /= 255
print('Train:{},Test:{}'.format(len(X_train), len(X_test)))
nb_classes = 10
y_train = np_utils.to_categorical(y_train, nb_classes)
y_test = np_utils.to_categorical(y_test, nb_classes)
print('data success')
input_tensor = Input((28, 28, 1))
#28*28
temp = Conv2D(filters=6,
kernel_size=(5, 5),
padding='valid',
use_bias=False)(input_tensor)
temp = Activation('relu')(temp)
#24*24
temp = MaxPooling2D(pool_size=(2, 2))(temp)
#12*12
temp = Conv2D(filters=16,
kernel_size=(5, 5),
padding='valid',
use_bias=False)(temp)
temp = Activation('relu')(temp)
#8*8
temp = MaxPooling2D(pool_size=(2, 2))(temp)
#4*4
#1*1
temp = Flatten()(temp)
temp = Dense(120, activation='relu')(temp)
temp = Dense(84, activation='relu')(temp)
output = Dense(nb_classes, activation='softmax')(temp)
model = Model(input=input_tensor, outputs=output)
model.summary()
sgd = SGD(lr=0.01, decay=1e-6, momentum=0.9, nesterov=True)
model.compile(loss='categorical_crossentropy',
optimizer=sgd,
metrics=['accuracy'])
checkpoint = ModelCheckpoint(filepath='./model/model_fashion.hdf5',
monitor='val_acc',
mode='auto',
save_best_only='True')
model.fit(X_train,
y_train,
batch_size=64,
nb_epoch=15,
validation_data=(X_test, y_test),
callbacks=[checkpoint])
model = load_model('./model/model_fashion.hdf5')
score = model.evaluate(X_test, y_test, verbose=0)
print(score)
def process_data():
x_train, y_train = load_mnist('data', kind='train')
x_test, y_test = load_mnist('data', kind='t10k')
x_train, y_train = filter_data(x_train, y_train)
x_test, y_test = filter_data(x_test, y_test)
mid = int(len(x_train) / 2)
return ((x_train, y_train), (x_test, y_test)), ((x_train[:mid],
y_train[:mid]), (x_test,
y_test))
def __call__(self):
x_train, y_train = load_mnist('data', kind='train')
x_test, y_test = load_mnist('data', kind='t10k')
x_train, y_train = self.__filter_data(x_train, y_train)
x_test, y_test = self.__filter_data(x_test, y_test)
mid = int(len(x_train) / 2)
return ((x_train, y_train),
(x_test, y_test)), ((x_train[:mid], y_train[:mid]), (x_test,
y_test))
def generate_fashion_sample(label,attack):
path='./fashion-mnist/data/fashion'
X_train, Y_train = mnist_reader.load_mnist(path, kind='train')
X_test, Y_test = mnist_reader.load_mnist(path, kind='t10k')
X_train = X_train.astype('float32').reshape(-1,28,28,1)
X_test = X_test.astype('float32').reshape(-1,28,28,1)
X_train /= 255
X_test /= 255
image_org=X_test[Y_test==label]
adv=adv_func(image_org,label,model_path='./model/model_fashion.hdf5',dataset='mnist',attack=attack)
return adv
def main():
X_test, y_test = mnist_reader.load_mnist('data/fashion', kind='t10k')
X_train, y_train = mnist_reader.load_mnist('data/fashion', kind='train')
start = time.time()
covariance = [0.99, .95, .9, .8]
X_train, X_test = reduce_dimensionality_LDA()
# X_train, X_test, n = reduce_dimensionality_PCA(var)
print('Dimensionality reduced to: ', X_train.shape[1])
accuracy = test(X_train, y_train, X_test, y_test)
end = time.time()
total_time = end - start
print('time: ', total_time)
def load_dataset():
# loading the train and test variables
X_train, y_train = mnist_reader.load_mnist(
'fashion-mnist-master/data/fashion', kind='train')
X_test, y_test = mnist_reader.load_mnist(
'fashion-mnist-master/data/fashion', kind='t10k')
print("X_train shape: ", X_train.shape)
print("y_train shape: ", y_train.shape)
print("X_test shape: ", X_test.shape)
print("y_test shape: ", y_test.shape)
return X_train, y_train, X_test, y_test
def init():
X_train, y_train = mnist_reader.load_mnist(
'fashion-mnist-master/data/fashion', kind='train')
X_test, y_test = mnist_reader.load_mnist(
'fashion-mnist-master/data/fashion', kind='t10k')
X_train = np.array(X_train)
y_train = np.array(y_train)
X_test = np.array(X_test)
y_test = np.array(y_test)
X_train_temp, y_train_temp = [], []
X_test_temp, y_test_temp = [], []
train_len = len(X_train)
test_len = len(X_test)
sandal_count = 0
sneaker_count = 0
# Convert training data to binary classification problem.
for i in range(train_len):
if y_train[i] == 5 and sandal_count < 1000:
y_train_temp.append(0)
X_train_temp.append(X_train[i])
sandal_count += 1
if y_train[i] == 7 and sneaker_count < 1000:
y_train_temp.append(1)
X_train_temp.append(X_train[i])
sneaker_count += 1
# Convert test data to binary classification problem.
for i in range(test_len):
if y_test[i] == 5:
y_test_temp.append(0)
X_test_temp.append(X_test[i])
if y_test[i] == 7:
y_test_temp.append(1)
X_test_temp.append(X_test[i])
X_train = np.array(X_train_temp) / 255
y_train = y_train_temp
X_test = np.array(X_test_temp) / 255
y_test = y_test_temp
return X_train, y_train, X_test, y_test
def load_data():
x_train, y_train = mnist_reader.load_mnist('../fashion_mnist/data/fashion',
kind='train')
x_test, y_test = mnist_reader.load_mnist('../fashion_mnist/data/fashion',
kind='t10k')
print(f'x train shape: {x_train.shape}')
print(f'y train shape: {y_train.shape} with labels {set(y_train)}')
print(f'x test shape: {x_test.shape}')
print(f'y test shape: {y_test.shape} with labels {set(y_test)}')
print(f'number of x_train: {x_train.shape[0]} ')
print(f'number of x_test: {x_test.shape[0]} ')
return x_train, y_train, x_test, y_test
def load_data(self,
file_name='fashion-mnist/data/fashion',
datatype='train'):
base_path = os.getcwd() + '/../'
if datatype == 'train':
x, y = mnist_reader.load_mnist(base_path + file_name, kind='train')
elif datatype == 'test':
x, y = mnist_reader.load_mnist(base_path + file_name, kind='t10k')
else:
print('datatype must be either \'train\' or \'test\'')
exit(-1)
if self._net_type == 'conv':
x = x.reshape(-1, 28, 28, 1)
y = keras.utils.to_categorical(y, num_classes=10)
return x, y
def load_and_preprocess_data():
X_train, y_train = mnist_reader.load_mnist('../data/fashion', kind='train')
X_test, y_test = mnist_reader.load_mnist('../data/fashion', kind='t10k')
# X_train = 1.0 * X_train / 255
# X_test = 1.0 * X_test / 255
# subtract the mean image
mean_img = np.mean(X_train, axis=0)
stddev_img = np.std(X_train, axis=0)
# normalize the data
X_train = (X_train - mean_img) / stddev_img
X_test = (X_test - mean_img) / stddev_img
return add_bias(X_train), y_train, add_bias(X_test), y_test
def load_mnist(path, kind):
(xs, ys) = mnist_reader.load_mnist(path, kind=kind)
ts = []
for i in range(len(xs)):
if ys[i] > 1: continue
y = 1 if ys[i] == 0 else -1
ts.append((xs[i], y))
return ts
def load_dataset():
# loading the train and test variables
X_train, y_train = mnist_reader.load_mnist(
'fashion-mnist-master/data/fashion', kind='train')
X_test, y_test = mnist_reader.load_mnist(
'fashion-mnist-master/data/fashion', kind='t10k')
X_train = X_train.reshape((X_train.shape[0], 28, 28, 1))
X_test = X_test.reshape((X_test.shape[0], 28, 28, 1))
# one hot encoding on the y values
y_train = to_categorical(y_train)
y_test = to_categorical(y_test)
print("X_train shape: ", X_train.shape)
print("y_train shape: ", y_train.shape)
print("X_test shape: ", X_test.shape)
print("y_test shape: ", y_test.shape)
return X_train, y_train, X_test, y_test
def generate_fashion_sample(label, ratio=0.1):
path = '/home/qingkaishi/Diversity/Test-diversity/fashion-mnist/data/fashion'
X_train, Y_train = mnist_reader.load_mnist(path, kind='train')
X_test, Y_test = mnist_reader.load_mnist(path, kind='t10k')
X_train = X_train.astype('float32').reshape(-1, 28, 28, 1)
X_test = X_test.astype('float32').reshape(-1, 28, 28, 1)
X_train /= 255
X_test /= 255
image_org = X_test[Y_test == label]
choice_index = np.random.choice(range(len(image_org)),
size=int(len(image_org) * ratio),
replace=False)
image_org = image_org[choice_index]
adv = adv_example(image_org,
label,
model_path='./model/model_fashion.hdf5',
dataset='mnist')
return image_org, adv
def Test(factNormalizar, neuronasOcultas, nombreModelo):
#Constantes
'''
Factor por el que se divide para
que no baje tan rapido la sigmoide
'''
NORMALIZAR = factNormalizar
#Cantidad de neuronas en la
#Capa oculta
NEURONAS_OCULTAS = neuronasOcultas
#Neuronas en la capa salida
NEURONAS_SALIDA = 10
#Lectura de datos
print("Lectura de datos...")
X_test, y_test = mnist_reader.load_mnist('./data/fashion', kind='t10k')
#TEST
modeloCarga = open(nombreModelo, 'rb')
flat_thetas = pickle.load(modeloCarga)
modeloCarga.close()
X = X_test / NORMALIZAR
m, n = X.shape
#Y son las labels de cada imagen
y = y_test.reshape(m, 1)
Y = (y == np.array(range(10))).astype(int)
#Se construye el modelo
theta_shapes = np.array([[NEURONAS_OCULTAS, n + 1],
[NEURONAS_SALIDA, NEURONAS_OCULTAS + 1]])
resultado = feed_forward(inflate_matrixes(flat_thetas, theta_shapes), X)
prediccion = np.argmax(resultado[-1], axis=1).reshape(m, 1)
correctos = ((prediccion == y) * 1).sum()
incorrectos = len(y) - correctos
print(nombreModelo)
print("Correctas " + str(correctos))
print("Incorrectos " + str(incorrectos))
print("Exactitud " + str(correctos * 100 / float(len(y))))
print()
return y, prediccion
def main():
x_train, y_train = mnist_reader.load_mnist("data/fashion", kind="train")
x_train = prepare_data(x_train)
x_train, y_train, x_validation, y_validation = segregate_data(
x_train, y_train)
config = {
"initialGuess": np.ones(x_train.shape[1]),
"learningRate": 0.01,
"iterations": 1000
}
print(
f'Using learning rate = {config["learningRate"]} and {config["iterations"]} iterations'
)
predictions = list()
for label in labels:
start_time = time.time()
y_binary_train = toggle_class(y_train, label)
y_binary_validation = toggle_class(y_validation, label)
lr = LogisticRegression(config)
cost_iterations = lr.fit(x_train, y_binary_train, labels[label],
cost_function)
predicted = lr.predict(x_validation, labels[label])
predictions.append(predicted)
title = "One Vs All " + labels[label]
plot_cost(cost_iterations, title, title.replace(" ", ""),
config["iterations"], config["learningRate"])
binarized_predicted = [1 if p >= 0.5 else 0 for p in predicted]
show_metrics(binarized_predicted, title,
["Not " + labels[label], labels[label]],
y_binary_validation,
"ConfusionMatrix" + labels[label].replace("/", "-"))
elapsed_time = time.time() - start_time
print("Elapsed time: %1f s" % (elapsed_time))
print("Predicting for all validation set...")
predictions = np.array(predictions)
predicted_class = []
for i in range(predictions.shape[1]):
column = predictions[:, i]
predicted_class.append(np.argmax(column))
show_metrics(predicted_class, "One Vs All", list(labels.keys()),
y_validation, "ConfusionMatrixLogisticOneVsAll")
def get_data(train_size, test_size):
total_size = train_size + test_size
if torch.cuda.is_available():
#data, _ = mnist_reader.load_mnist('/content/', kind='train')
data, _ = mnist_reader.load_mnist(dir_path + '/data/fashion',
kind='train')
else:
data, _ = mnist_reader.load_mnist(dir_path + '/data/fashion',
kind='train')
data_demo = data[data.shape[0] - 1, :]
data_demo = np.resize(data_demo, (28, 28))
data_demo = (np.pad(data_demo,
((2, 2), (2, 2)), 'constant') / 255).astype('float64')
data = data[0:total_size, :]
data = np.resize(data, (total_size, 28, 28))
data = (np.pad(data, ((0, 0), (2, 2), (2, 2)), 'constant') / 255).astype(
'float64') # get to 32x32
data_train = data[0:train_size]
data_test = data[train_size:total_size]
return (data_train, data_test, data_demo)
def main():
# Reading the dataset
X_train, y_train = mnist_reader.load_mnist('../data/fashion', kind='train')
X_test, y_test = mnist_reader.load_mnist('../data/fashion', kind='t10k')
# Splitting into train and validation set
X_train2, X_val, y_train2, y_val = train_test_split(X_train,
y_train,
test_size=1 / 6,
random_state=42)
# Converting the image lables(numbers) into one hot vectors
y_train_onehot = np.eye(10)[y_train]
y_train2_onehot = np.eye(10)[y_train2]
y_val_onehot = np.eye(10)[y_val]
y_test_onehot = np.eye(10)[y_test]
# Scaling the pixel values to prevent overflow
X_train = X_train / 255
X_train2 = X_train2 / 255
X_val = X_val / 255
X_test = X_test / 255
if args.train:
train(X_train2, y_train2_onehot, X_val, y_val_onehot)
if args.test:
test(X_test, y_test_onehot)
if args.layer == '1':
logistic(X_train, y_train, y_train_onehot, X_test, y_test,
y_test_onehot)
if args.layer == '2':
logistic(X_train, y_train, y_train_onehot, X_test, y_test,
y_test_onehot)
if args.layer == '3':
logistic(X_train, y_train, y_train_onehot, X_test, y_test,
y_test_onehot)
def gen_data(use_adv=True,deepxplore=False):
path='/home/qingkaishi/Diversity/Test-diversity/fashion-mnist/data/fashion'
X_train, Y_train = mnist_reader.load_mnist(path, kind='train')
X_test, Y_test = mnist_reader.load_mnist(path, kind='t10k')
X_train = X_train.astype('float32').reshape(-1,28,28,1)
X_test = X_test.astype('float32').reshape(-1,28,28,1)
X_train /= 255
X_test /= 255
model_path='./model/model_fashion.hdf5'
if use_adv:
attack_lst=['fgsm','jsma','bim','cw']
adv_image_all=[]
adv_label_all=[]
for attack in attack_lst:
adv_image_all.append(np.load('./adv_image/{}_fashion_image.npy'.format(attack)))
adv_label_all.append(np.load('./adv_image/{}_fashion_label.npy'.format(attack)))
adv_image_all=np.concatenate(adv_image_all,axis=0)
adv_label_all=np.concatenate(adv_label_all,axis=0)
test=np.concatenate([X_test,adv_image_all],axis=0)
true_test=np.concatenate([Y_test,adv_label_all],axis=0)
else:
test=X_test
true_test=Y_test
train=X_train
model=load_model(model_path)
pred_test_prob=model.predict(test)
pred_test=np.argmax(pred_test_prob,axis=1)
input=model.layers[0].output
if not deepxplore:
layers=[model.layers[2].output,model.layers[3].output,model.layers[5].output,model.layers[6].output,model.layers[8].output,model.layers[9].output,model.layers[10].output]
else:
layers=[model.layers[1].output,model.layers[3].output,model.layers[4].output,model.layers[8].output,model.layers[8].output,model.layers[9].output,model.layers[10].output]
layers=list(zip(4*['conv']+3*['dense'],layers))
return input,layers,test,train,pred_test,true_test,pred_test_prob
def loadData(self):
print("started loading data")
startTime = time.time()
self.X_raw_train, self.y_train = mnist_reader.load_mnist(
"/home/user/git-repos/fashion-mnist/data/fashion", kind="train")
#self.X_raw_train = [[255,100,20,11,50], [223, 52, 12,255, 11]]
#self.y_train = [1, 3]
self.inputLen = len(self.X_raw_train[0])
self.X_train = []
for x in self.X_raw_train:
new_column = []
for y in x:
new_column.append(y / 255)
self.X_train.append(new_column)
print("done")
print("it took: ", time.time() - startTime)
# In[ ]:
import numpy as np
import sys
import math
from helper import save_data,load_data
import mnist_reader
# In[ ]:
X_train, y_train = mnist_reader.load_mnist('data/fashion', kind='train')
X_test, y_test = mnist_reader.load_mnist('data/fashion', kind='t10k')
# In[ ]:
training_data=(X_train>127)
validating_data=(X_test>127)
# In[ ]:
def sigmoid(x):
x=np.array(x)
