# NNet rendering of the neural net in Grokking, p. 159
import numpy as np
import sys
from netExamples.grokking.mnist import \
images, labels, test_images, test_labels
from nnet import NNet
np.random.seed(1)
batch_size = 100
iterations = 301
nn = NNet(sizes=[784, 100, 10], batch_size=batch_size)
nn.setActivations(['brelu', 'linear'])
nn.setMaskPr({1: 2})
nn.setAlpha(0.001)
nn.scale(0.1)
for j in range(iterations):
error, correct_cnt = (0.0, 0)
for i in range(int(len(images) / batch_size)):
batch_start, batch_end = ((i * batch_size), ((i + 1) * batch_size))
prediction = nn.learn(images[batch_start:batch_end],
labels[batch_start:batch_end])
# vprint(i, nn, suffix='a', quit=True)
# vprint(i, nn.dropout_masks[1], suffix='m', quit=True)
# nn.train(labels[batch_start:batch_end])
# vprint(i, nn, stage='b', quit=True)
error += np.sum((labels[batch_start:batch_end] - prediction) ** 2)
for k in range(batch_size):
def vprintnn(i, quit=False, suffix=''):
ll = [layer_0, layer_1, layer_2]
ww = [weights_0_1, weights_1_2]
nn = NNet(weights=ww, layerList=ll)
nn.setAlpha(alpha)
vprint(i, nn, quit=quit, prefix='gro', suffix=suffix)
from nnet import NNet
from verbosePrint import vprint
import verbosePrint
np.random.seed(1)
batch_size = 128
iterations = 300
cm = ConvolutionMatrix(rows=9, cols=16, shapes=((28, 28), (3, 3)))
hLen = cm.outputLength()
nn = NNet(sizes=[784, hLen, 10], batch_size=batch_size)
nn.replaceLayer(0, cm)
nn.setActivations(['tanh', 'softmax'])
nn.setMaskPr({1: 2})
nn.setAlpha(2)
nn.scale(0.01, 0)
nn.scale(0.1, 1)
# vprint(0, nn, quit=True)
# params = (test_images, test_labels)
# nn.checkup(*params)
for j in range(0, iterations + 1):
correct_cnt = 0
for i in range(int(len(images) / batch_size)):
batch_start, batch_end = ((i * batch_size), ((i + 1) * batch_size))
prediction = nn.learn(images[batch_start:batch_end],
labels[batch_start:batch_end])
# vprint(i, nn, suffix='a', quit=True)
# vprint(i, nn.dropout_masks[1], suffix='m', quit=True)
from nnet import NNet
from verbosePrint import vp, vprint, vprintnn
import verbosePrint
demo = 6
verbosePrint.vIteration = 0
verbosePrint.stage = ''
vp()
if demo == 4:
# weights = [[[0.1],
# [0.2],
# [-0.1]]]
nn = NNet([[[0.1], [0.2], [-0.1]]])
nn.setAlpha(0.01)
datain = np.array([[8.5, 0.65, 1.2]])
goal = np.array([[1]])
for i in range(4):
output = nn.fire(datain)
print('Goal: ' + str(goal))
print(nn)
nn.learn(datain, goal)
if demo == 6:
nn = NNet([[[0.5], [0.48], [-0.7]]])
nn.setAlpha(0.1)
streetlights = np.array([[1, 0, 1], [0, 1, 1], [0, 0, 1], [1, 1, 1],
[0, 1, 1], [1, 0, 1]])
# NNet rendering of the neural net in Grokking, p. 147
import numpy as np
import sys
from netExamples.grokking.mnist import \
images, labels, test_images, test_labels
from nnet import NNet
np.random.seed(1)
iterations = 351
nn = NNet(sizes=[784, 40, 10])
nn.setActivations(['relu', 'linear'])
nn.setAlpha(0.005)
nn.scale(0.1)
nn.fire(images[0:1])
nn.checkup(images[0:1], labels[0:1])
# vprint(0, nn)
for j in range(iterations):
error, correct_cnt = (0.0, 0)
for i in range(len(images)):
# vprint(i, nn, quit=True)
prediction = nn.learn(images[i:i + 1], labels[i:i + 1])
# vprint(i, nn, suffix='b', quit=True)
error += np.sum((labels[i:i + 1] - prediction)**2)
correct_cnt += int(np.argmax(prediction) == \
np.argmax(labels[i:i + 1]))
# NNet rendering of the neural net in Grokking, p. 174
import numpy as np
import sys
from netExamples.grokking.mnist import \
images, labels, test_images, test_labels
from nnet import NNet
np.random.seed(1)
batch_size = 100
iterations = 301
nn = NNet(sizes=[784, 100, 10], batch_size=batch_size)
nn.setActivations(['tanh', 'softmax'])
nn.setMaskPr({1: 2})
nn.setAlpha(0.2)
nn.scale(0.1)
# vprint(0, nn, quit=True)
for j in range(iterations):
correct_cnt = 0
for i in range(int(len(images) / batch_size)):
batch_start, batch_end = ((i * batch_size), ((i + 1) * batch_size))
prediction = nn.learn(images[batch_start:batch_end],
labels[batch_start:batch_end])
# vprint(i, nn, suffix='a', quit=True)
# vprint(i, nn.dropout_masks[1], suffix='m', quit=True)
for k in range(batch_size):
correct_cnt += int(
correct_cnt += int(np.argmax(layer_2) == \
np.argmax(test_labels[i:i + 1]))
sys.stdout.write(
" Test-Err:" + str(error / float(len(test_images)))[0:5]
+ " Test-Acc:" + str(correct_cnt / float(len(test_images)))
)
print()
if demo == 82:
np.random.seed(1)
iterations = 351
nn = NNet(sizes=[784, 40, 10])
nn.setActivations(['brelu', 'linear'])
nn.setAlpha(0.005)
nn.scale(0.1)
nn.fire(images[0:1])
vprint(0, nn)
for j in range(iterations):
error, correct_cnt = (0.0, 0)
for i in range(len(images)):
vprint(i, nn, quit=True)
prediction = nn.learn(images[i:i+1], labels[i:i+1])
vprint(i, nn, suffix='b', quit=True)
error += np.sum((labels[i:i+1] - prediction) ** 2)
correct_cnt += int(np.argmax(prediction) == \
np.argmax(test_labels[i:i + 1]))
import numpy as np
from nnet import NNet
from verbosePrint import vprint
nn = NNet([[[0.5],
[0.48],
[-0.7]]])
nn.setAlpha(0.1)
streetlights = np.array([[1, 0, 1],
[0, 1, 1],
[0, 0, 1],
[1, 1, 1],
[0, 1, 1],
[1, 0, 1]])
walk_vs_stop = np.array([[0, 1, 0, 1, 1, 0]]).T
datain = streetlights[0] # [1,0,1]
goal_prediction = walk_vs_stop[0] # equals 0... i.e. "stop"
for iteration in range(40):
vprint(iteration, '~~~~~~~~~~~ Iteration %d ~~~~~~~~~~~' % iteration)
error_for_all_lights = 0
for row_index in range(len(walk_vs_stop)):
datain = streetlights[row_index:row_index + 1]
goal_prediction = walk_vs_stop[row_index:row_index + 1]
prediction = nn.fire(datain)
# print('Prediction:' + str(prediction))
vprint(iteration, nn)