def main2():
dnn = DNN(input=28 * 28,
layers=[DropoutLayer(160, LQ),
Layer(10, LCE)],
eta=0.05,
lmbda=1) # 98%
dnn.initialize_rand()
train, test, vadilation = load_mnist_simple()
f_names = [f'mnist_expaned_k0{i}.pkl.gz' for i in range(50)]
shuffle(f_names)
for f_name in f_names:
print(f_name)
with timing("load"):
raw_data = load_data(f_name)
with timing("shuffle"):
shuffle(raw_data)
with timing("reshape"):
data = [(x.reshape((784, 1)), y)
for x, y in islice(raw_data, 100000)]
del raw_data
with timing("learn"):
dnn.learn(data)
del data
print('TEST:', dnn.test(test))
def plot_accuracy():
import numpy as np
from matplotlib import pyplot as plt
train, test, vadilation = load_mnist_simple()
dnn = DNN(input=28 * 28, layers=[Layer(100, LQ), Layer(10, LCE)], eta=0.05, lmbda=1)
for l in dnn.layers:
l.w = np.random.random(l.w.shape) - 0.5
acc1 = list(dnn.learn_iter(train, epochs=20, test=vadilation))
dnn.initialize_rand()
acc2 = list(dnn.learn_iter(train, epochs=20, test=vadilation))
print(acc1)
print(acc2)
plt.plot(acc1)
plt.plot(acc2)
plt.show()
def main():
train, test, vadilation = load_mnist_simple()
# x, y = train[0]
# print("x: ", x.shape)
# print("y: ", y)
with timing(f""):
# dnn = DNN(input=28 * 28, layers=[Layer(30, LQ), Layer(10, LCE)], eta=0.05) # 96%
# dnn = DNN(input=28 * 28, layers=[Layer(30, LQ), Layer(10, SM)], eta=0.001) # 68%
# dnn = DNN(input=28 * 28, layers=[Layer(100, LQ), Layer(10, LCE)], eta=0.05, lmbda=5) # 98%
# dnn = DNN(input=28 * 28, layers=[DropoutLayer(100, LQ), Layer(10, LCE)], eta=0.05) # 97.5%
dnn = DNN(input=28 * 28, layers=[DropoutLayer(160, LQ), Layer(10, LCE)], eta=0.05, lmbda=3)
dnn.initialize_rand()
dnn.learn(train, epochs=30, test=vadilation, batch_size=29)
print('test:', dnn.test(test))
print(dnn.stats())