def train():
# Get SVHN dataset
svhn_maybe_download_and_extract()
file_name = os.path.join(FLAGS.svhn_data_dir, "train_32x32.mat")
train = sio.loadmat(file_name)
tr_data_svhn = np.zeros((len(train['y']), 32 * 32 * 3), dtype=float)
tr_label_svhn = np.zeros((len(train['y']), 10), dtype=float)
for i in range(len(train['y'])):
tr_data_svhn[i] = np.reshape(train['X'][:, :, :, i], [1, 32 * 32 * 3])
tr_label_svhn[i, train['y'][i][0] - 1] = 1.0
tr_data_svhn = tr_data_svhn / 255.0
file_name = os.path.join(FLAGS.svhn_data_dir, "test_32x32.mat")
test = sio.loadmat(file_name)
ts_data_svhn = np.zeros((len(test['y']), 32 * 32 * 3), dtype=float)
ts_label_svhn = np.zeros((len(test['y']), 10), dtype=float)
for i in range(len(test['y'])):
ts_data_svhn[i] = np.reshape(test['X'][:, :, :, i], [1, 32 * 32 * 3])
ts_label_svhn[i, test['y'][i][0] - 1] = 1.0
ts_data_svhn = ts_data_svhn / 255.0
data_num_len_svhn = len(tr_label_svhn)
# Get CIFAR 10 dataset
cifar10.maybe_download_and_extract()
tr_label_cifar10 = np.zeros((50000, 10), dtype=float)
ts_label_cifar10 = np.zeros((10000, 10), dtype=float)
for i in range(1, 6):
file_name = os.path.join(FLAGS.cifar_data_dir,
"data_batch_" + str(i) + ".bin")
f = open(file_name, "rb")
data = np.reshape(bytearray(f.read()), [10000, 3073])
if (i == 1):
tr_data_cifar10 = data[:, 1:] / 255.0
else:
tr_data_cifar10 = np.append(tr_data_cifar10,
data[:, 1:] / 255.0,
axis=0)
for j in range(len(data)):
tr_label_cifar10[(i - 1) * 10000 + j, data[j, 0]] = 1.0
file_name = os.path.join(FLAGS.cifar_data_dir, "test_batch.bin")
f = open(file_name, "rb")
data = np.reshape(bytearray(f.read()), [10000, 3073])
for i in range(len(data)):
ts_label_cifar10[i, data[i, 0]] = 1.0
ts_data_cifar10 = data[:, 1:] / 255.0
data_num_len_cifar10 = len(tr_label_cifar10)
print(ts_label_cifar10.shape)
print(ts_label_cifar10[0])
if (FLAGS.cifar_first):
tr_data1 = tr_data_cifar10
tr_label1 = tr_label_cifar10
ts_data1 = ts_data_cifar10
ts_label1 = ts_label_cifar10
data_num_len1 = data_num_len_cifar10
tr_data2 = tr_data_svhn
tr_label2 = tr_label_svhn
ts_data2 = ts_data_svhn
ts_label2 = ts_label_svhn
data_num_len2 = data_num_len_svhn
else:
tr_data1 = tr_data_svhn
tr_label1 = tr_label_svhn
ts_data1 = ts_data_svhn
ts_label1 = ts_label_svhn
data_num_len1 = data_num_len_svhn
tr_data2 = tr_data_cifar10
tr_label2 = tr_label_cifar10
ts_data2 = ts_data_cifar10
ts_label2 = ts_label_cifar10
data_num_len2 = data_num_len_cifar10
## TASK 1
sess = tf.InteractiveSession()
# Input placeholders
with tf.name_scope('input'):
x = tf.placeholder(tf.float32, [None, 32 * 32 * 3], name='x-input')
y_ = tf.placeholder(tf.float32, [None, 10], name='y-input')
with tf.name_scope('input_reshape'):
image_shaped_input = tf.reshape(x, [-1, 32, 32, 3])
tf.summary.image('input', image_shaped_input, 2)
# geopath_examples
geopath = pathnet.geopath_initializer(FLAGS.L, FLAGS.M)
# fixed weights list
fixed_list = np.ones((FLAGS.L, FLAGS.M), dtype=str)
for i in range(FLAGS.L):
for j in range(FLAGS.M):
fixed_list[i, j] = '0'
# Hidden Layers
weights_list = np.zeros((FLAGS.L, FLAGS.M), dtype=object)
biases_list = np.zeros((FLAGS.L, FLAGS.M), dtype=object)
# model define
layer_modules_list = np.zeros(FLAGS.M, dtype=object)
# conv layer
i = 0
for j in range(FLAGS.M):
layer_modules_list[j], weights_list[i, j], biases_list[
i,
j] = pathnet.conv_module(image_shaped_input, FLAGS.filt, [5, 5],
geopath[i, j], 1,
'layer' + str(i + 1) + "_" + str(j + 1))
net = np.sum(layer_modules_list) / FLAGS.M
# res-fire layer
i = 1
for j in range(FLAGS.M):
layer_modules_list[j], weights_list[i, j], biases_list[
i, j] = pathnet.res_fire_layer(
net, FLAGS.filt, 10, 10, geopath[i, j],
'layer' + str(i + 1) + "_" + str(j + 1))
net = np.sum(layer_modules_list) / FLAGS.M
# dimensionality_reduction layer
i = 2
for j in range(FLAGS.M):
layer_modules_list[j], weights_list[i, j], biases_list[
i, j] = pathnet.Dimensionality_reduction_module(
net, 10, geopath[i, j],
'layer' + str(i + 1) + "_" + str(j + 1))
net = np.sum(layer_modules_list) / FLAGS.M
# conv layer
i = 3
for j in range(FLAGS.M):
layer_modules_list[j], weights_list[i, j], biases_list[
i,
j] = pathnet.conv_module(image_shaped_input, FLAGS.filt, [5, 5],
geopath[i, j], 1,
'layer' + str(i + 1) + "_" + str(j + 1))
net = np.sum(layer_modules_list) / FLAGS.M
# output layer
# reshape
_shape = net.shape[1:]
_length = 1
for _i in _shape:
_length *= int(_i)
net = tf.reshape(net, [-1, _length])
# full connection layer
y, output_weights, output_biases = pathnet.nn_layer(
net, 10, 'output_layer')
# Cross Entropy
with tf.name_scope('cross_entropy'):
diff = tf.nn.softmax_cross_entropy_with_logits(labels=y_, logits=y)
with tf.name_scope('total'):
cross_entropy = tf.reduce_mean(diff)
tf.summary.scalar('cross_entropy', cross_entropy)
# Need to learn variables
var_list_to_learn = [] + output_weights + output_biases
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '0'):
var_list_to_learn += weights_list[i, j] + biases_list[i, j]
# GradientDescent
with tf.name_scope('train'):
train_step = tf.train.GradientDescentOptimizer(
FLAGS.learning_rate).minimize(cross_entropy,
var_list=var_list_to_learn)
# Accuracy
with tf.name_scope('accuracy'):
with tf.name_scope('correct_prediction'):
correct_prediction = tf.equal(tf.argmax(y, 1), tf.argmax(y_, 1))
with tf.name_scope('accuracy'):
accuracy = tf.reduce_mean(tf.cast(correct_prediction, tf.float32))
tf.summary.scalar('accuracy', accuracy)
# Merge all the summaries and write them out to /tmp/tensorflow/mnist/logs/mnist_with_summaries (by default)
merged = tf.summary.merge_all()
train_writer = tf.summary.FileWriter(FLAGS.log_dir + '/train1', sess.graph)
test_writer = tf.summary.FileWriter(FLAGS.log_dir + '/test1')
tf.global_variables_initializer().run()
# Generating randomly geopath
geopath_set = np.zeros(FLAGS.candi, dtype=object)
for i in range(FLAGS.candi):
geopath_set[i] = pathnet.get_geopath(FLAGS.L, FLAGS.M, FLAGS.N)
# parameters placeholders and ops
var_update_ops = np.zeros(len(var_list_to_learn), dtype=object)
var_update_placeholders = np.zeros(len(var_list_to_learn), dtype=object)
for i in range(len(var_list_to_learn)):
var_update_placeholders[i] = tf.placeholder(
var_list_to_learn[i].dtype, shape=var_list_to_learn[i].get_shape())
var_update_ops[i] = var_list_to_learn[i].assign(
var_update_placeholders[i])
# geopathes placeholders and ops
geopath_update_ops = np.zeros((len(geopath), len(geopath[0])),
dtype=object)
geopath_update_placeholders = np.zeros((len(geopath), len(geopath[0])),
dtype=object)
for i in range(len(geopath)):
for j in range(len(geopath[0])):
geopath_update_placeholders[i, j] = tf.placeholder(
geopath[i, j].dtype, shape=geopath[i, j].get_shape())
geopath_update_ops[i, j] = geopath[i, j].assign(
geopath_update_placeholders[i, j])
acc_geo = np.zeros(FLAGS.B, dtype=float)
summary_geo = np.zeros(FLAGS.B, dtype=object)
for i in range(FLAGS.max_steps):
# Select Candidates to Tournament
compet_idx = range(FLAGS.candi)
np.random.shuffle(compet_idx)
compet_idx = compet_idx[:FLAGS.B]
# Learning & Evaluating
for j in range(len(compet_idx)):
# Shuffle the data
idx = range(len(tr_data1))
np.random.shuffle(idx)
tr_data1 = tr_data1[idx]
tr_label1 = tr_label1[idx]
# Insert Candidate
pathnet.geopath_insert(sess, geopath_update_placeholders,
geopath_update_ops,
geopath_set[compet_idx[j]], FLAGS.L,
FLAGS.M)
acc_geo_tr = 0
for k in range(FLAGS.T):
'''
print(x.shape)
print(tr_data1[k*FLAGS.batch_num:(k+1)*FLAGS.batch_num,:].shape)
print(y.shape)
print(tr_label1[k*FLAGS.batch_num:(k+1)*FLAGS.batch_num,:].shape)
'''
summary_geo_tr, _, acc_geo_tmp = sess.run(
[merged, train_step, accuracy],
feed_dict={
x:
tr_data1[k * FLAGS.batch_num:(k + 1) *
FLAGS.batch_num, :],
y_:
tr_label1[k * FLAGS.batch_num:(k + 1) *
FLAGS.batch_num, :]
})
acc_geo_tr += acc_geo_tmp
acc_geo[j] = acc_geo_tr / FLAGS.T
summary_geo[j] = summary_geo_tr
# Tournament
winner_idx = np.argmax(acc_geo)
acc = acc_geo[winner_idx]
summary = summary_geo[winner_idx]
# Copy and Mutation
for j in range(len(compet_idx)):
if (j != winner_idx):
geopath_set[compet_idx[j]] = np.copy(
geopath_set[compet_idx[winner_idx]])
geopath_set[compet_idx[j]] = pathnet.mutation(
geopath_set[compet_idx[j]], FLAGS.L, FLAGS.M, FLAGS.N)
train_writer.add_summary(summary, i)
print('Training Accuracy at step %s: %s' % (i, acc))
acc_task1 = acc
task1_optimal_path = geopath_set[compet_idx[winner_idx]]
# Fix task1 Optimal Path
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (task1_optimal_path[i, j] == 1.0):
fixed_list[i, j] = '1'
# Get variables of fixed list
var_list_to_fix = []
#var_list_to_fix=[]+output_weights+output_biases;
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '1'):
var_list_to_fix += weights_list[i, j] + biases_list[i, j]
var_list_fix = pathnet.parameters_backup(var_list_to_fix)
# parameters placeholders and ops
var_fix_ops = np.zeros(len(var_list_to_fix), dtype=object)
var_fix_placeholders = np.zeros(len(var_list_to_fix), dtype=object)
for i in range(len(var_list_to_fix)):
var_fix_placeholders[i] = tf.placeholder(
var_list_to_fix[i].dtype, shape=var_list_to_fix[i].get_shape())
var_fix_ops[i] = var_list_to_fix[i].assign(var_fix_placeholders[i])
## TASK 2
# Need to learn variables
var_list_to_learn = [] + output_weights + output_biases
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '0'):
var_list_to_learn += weights_list[i, j] + biases_list[i, j]
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '1'):
tmp = biases_list[i, j][0]
break
break
# Initialization
merged = tf.summary.merge_all()
train_writer = tf.summary.FileWriter(FLAGS.log_dir + '/train2', sess.graph)
test_writer = tf.summary.FileWriter(FLAGS.log_dir + '/test2')
tf.global_variables_initializer().run()
# Update fixed values
pathnet.parameters_update(sess, var_fix_placeholders, var_fix_ops,
var_list_fix)
# GradientDescent
with tf.name_scope('train'):
train_step = tf.train.GradientDescentOptimizer(
FLAGS.learning_rate).minimize(cross_entropy,
var_list=var_list_to_learn)
# Generating randomly geopath
geopath_set = np.zeros(FLAGS.candi, dtype=object)
for i in range(FLAGS.candi):
geopath_set[i] = pathnet.get_geopath(FLAGS.L, FLAGS.M, FLAGS.N)
# parameters placeholders and ops
var_update_ops = np.zeros(len(var_list_to_learn), dtype=object)
var_update_placeholders = np.zeros(len(var_list_to_learn), dtype=object)
for i in range(len(var_list_to_learn)):
var_update_placeholders[i] = tf.placeholder(
var_list_to_learn[i].dtype, shape=var_list_to_learn[i].get_shape())
var_update_ops[i] = var_list_to_learn[i].assign(
var_update_placeholders[i])
acc_geo = np.zeros(FLAGS.B, dtype=float)
summary_geo = np.zeros(FLAGS.B, dtype=object)
for i in range(FLAGS.max_steps):
# Select Candidates to Tournament
compet_idx = range(FLAGS.candi)
np.random.shuffle(compet_idx)
compet_idx = compet_idx[:FLAGS.B]
# Learning & Evaluating
for j in range(len(compet_idx)):
# Shuffle the data
idx = range(len(tr_data2))
np.random.shuffle(idx)
tr_data2 = tr_data2[idx]
tr_label2 = tr_label2[idx]
geopath_insert = np.copy(geopath_set[compet_idx[j]])
for l in range(FLAGS.L):
for m in range(FLAGS.M):
if (fixed_list[l, m] == '1'):
geopath_insert[l, m] = 1.0
# Insert Candidate
pathnet.geopath_insert(sess, geopath_update_placeholders,
geopath_update_ops, geopath_insert, FLAGS.L,
FLAGS.M)
acc_geo_tr = 0
for k in range(FLAGS.T):
summary_geo_tr, _, acc_geo_tmp = sess.run(
[merged, train_step, accuracy],
feed_dict={
x:
tr_data2[k * FLAGS.batch_num:(k + 1) *
FLAGS.batch_num, :],
y_:
tr_label2[k * FLAGS.batch_num:(k + 1) *
FLAGS.batch_num, :]
})
acc_geo_tr += acc_geo_tmp
acc_geo[j] = acc_geo_tr / FLAGS.T
summary_geo[j] = summary_geo_tr
# Tournament
winner_idx = np.argmax(acc_geo)
acc = acc_geo[winner_idx]
summary = summary_geo[winner_idx]
# Copy and Mutation
for j in range(len(compet_idx)):
if (j != winner_idx):
geopath_set[compet_idx[j]] = np.copy(
geopath_set[compet_idx[winner_idx]])
geopath_set[compet_idx[j]] = pathnet.mutation(
geopath_set[compet_idx[j]], FLAGS.L, FLAGS.M, FLAGS.N)
train_writer.add_summary(summary, i)
print('Training Accuracy at step %s: %s' % (i, acc))
acc_task2 = acc
if (FLAGS.cifar_first):
print("CIFAR10_SVHN,TASK1:" + str(acc_task1) + ",TASK2:" +
str(acc_task2) + ",Done")
else:
print("SVHN_CIFAR10,TASK1:" + str(acc_task1) + ",TASK2:" +
str(acc_task2) + ",Done")
train_writer.close()
test_writer.close()
def train():
# Get SVHN dataset
svhn_maybe_download_and_extract()
file_name = os.path.join(FLAGS.svhn_data_dir, "train_32x32.mat")
train = sio.loadmat(file_name)
tr_data_svhn = np.zeros((len(train['y']), 32 * 32 * 3), dtype=float)
tr_label_svhn = np.zeros((len(train['y']), 10), dtype=float)
for i in range(len(train['y'])):
tr_data_svhn[i] = np.reshape(train['X'][:, :, :, i], [1, 32 * 32 * 3])
tr_label_svhn[i, train['y'][i][0] - 1] = 1.0
tr_data_svhn = tr_data_svhn / 255.0
tr_label_svhn = np.zeros((len(train['y']), 10), dtype=float)
file_name = os.path.join(FLAGS.svhn_data_dir, "test_32x32.mat")
test = sio.loadmat(file_name)
ts_data_svhn = np.zeros((len(test['y']), 32 * 32 * 3), dtype=float)
ts_label_svhn = np.zeros((len(test['y']), 10), dtype=float)
for i in range(len(test['y'])):
ts_data_svhn[i] = np.reshape(test['X'][:, :, :, i], [1, 32 * 32 * 3])
ts_label_svhn[i, test['y'][i][0] - 1] = 1.0
ts_data_svhn = ts_data_svhn / 255.0
data_num_len_svhn = len(tr_label_svhn)
# Get CIFAR 10 dataset
cifar10.maybe_download_and_extract()
tr_label_cifar10 = np.zeros((50000, 10), dtype=float)
ts_label_cifar10 = np.zeros((10000, 10), dtype=float)
for i in range(1, 6):
file_name = os.path.join(FLAGS.cifar_data_dir,
"data_batch_" + str(i) + ".bin")
f = open(file_name, "rb")
data = np.reshape(bytearray(f.read()), [10000, 3073])
if (i == 1):
tr_data_cifar10 = data[:, 1:] / 255.0
else:
tr_data_cifar10 = np.append(tr_data_cifar10,
data[:, 1:] / 255.0,
axis=0)
for j in range(len(data)):
tr_label_cifar10[(i - 1) * 10000 + j, data[j, 0]] = 1.0
file_name = os.path.join(FLAGS.cifar_data_dir, "test_batch.bin")
f = open(file_name, "rb")
data = np.reshape(bytearray(f.read()), [10000, 3073])
for i in range(len(data)):
ts_label_cifar10[i, data[i, 0]] = 1.0
ts_data_cifar10 = data[:, 1:] / 255.0
data_num_len_cifar10 = len(tr_label_cifar10)
tr_data1 = tr_data_cifar10
tr_label1 = tr_label_cifar10
ts_data1 = ts_data_cifar10
ts_label1 = ts_label_cifar10
data_num_len1 = data_num_len_cifar10
tr_data2 = tr_data_svhn
tr_label2 = tr_label_svhn
ts_data2 = ts_data_svhn
ts_label2 = ts_label_svhn
data_num_len2 = data_num_len_svhn
## TASK 1 (CIFAR 10)
sess = tf.InteractiveSession()
# Create a multilayer model.
# Input placeholders
with tf.name_scope('input'):
x = tf.placeholder(tf.float32, [None, 32 * 32 * 3], name='x-input')
y_ = tf.placeholder(tf.float32, [None, 10], name='y-input')
with tf.name_scope('input_reshape'):
image_shaped_input = tf.reshape(x, [-1, 32, 32, 3])
tf.summary.image('input', image_shaped_input, 10)
# geopath_examples
geopath = pathnet.geopath_initializer(FLAGS.L, FLAGS.M)
# fixed weights list
fixed_list = np.ones((FLAGS.L, FLAGS.M), dtype=str)
for i in range(FLAGS.L):
for j in range(FLAGS.M):
fixed_list[i, j] = '0'
# reinitializing weights list
rein_list = np.ones((FLAGS.L, FLAGS.M), dtype=str)
for i in range(FLAGS.L):
for j in range(FLAGS.M):
rein_list[i, j] = '0'
# Input Layer
"""
input_weights=pathnet.module_weight_variable([784,FLAGS.filt]);
input_biases=pathnet.module_bias_variable([FLAGS.filt]);
net = pathnet.nn_layer(x,input_weights,input_biases,'input_layer');
"""
# Hidden Layers
weights_list = np.zeros((FLAGS.L, FLAGS.M), dtype=object)
biases_list = np.zeros((FLAGS.L, FLAGS.M), dtype=object)
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (i == 0):
weights_list[i, j] = pathnet.module_weight_variable(
[32 * 32 * 3, FLAGS.filt])
biases_list[i, j] = pathnet.module_bias_variable([FLAGS.filt])
else:
weights_list[i, j] = pathnet.module_weight_variable(
[FLAGS.filt, FLAGS.filt])
biases_list[i, j] = pathnet.module_bias_variable([FLAGS.filt])
for i in range(FLAGS.L):
layer_modules_list = np.zeros(FLAGS.M, dtype=object)
for j in range(FLAGS.M):
if (i == 0):
layer_modules_list[j] = pathnet.module(
x, weights_list[i, j], biases_list[i, j],
'layer' + str(i + 1) + "_" + str(j + 1)) * geopath[i, j]
else:
layer_modules_list[j] = pathnet.module(
net, weights_list[i, j], biases_list[i, j],
'layer' + str(i + 1) + "_" + str(j + 1)) * geopath[i, j]
net = np.sum(layer_modules_list)
"""
with tf.name_scope('dropout'):
keep_prob = tf.placeholder(tf.float32)
tf.summary.scalar('dropout_keep_probability', keep_prob)
dropped = tf.nn.dropout(hidden1, keep_prob)
"""
# Do not apply softmax activation yet, see below.
output_weights = pathnet.module_weight_variable([FLAGS.filt, 10])
output_biases = pathnet.module_bias_variable([10])
y = pathnet.nn_layer(net,
output_weights,
output_biases,
'output_layer',
act=tf.identity)
with tf.name_scope('cross_entropy'):
diff = tf.nn.softmax_cross_entropy_with_logits(labels=y_, logits=y)
with tf.name_scope('total'):
cross_entropy = tf.reduce_mean(diff)
tf.summary.scalar('cross_entropy', cross_entropy)
# Need to learn variables
#var_list_to_learn=[]+input_weights+input_biases+output_weights+output_biases;
var_list_to_learn = [] + output_weights + output_biases
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '0'):
var_list_to_learn += weights_list[i, j] + biases_list[i, j]
with tf.name_scope('train'):
train_step = tf.train.AdamOptimizer(FLAGS.learning_rate).minimize(
cross_entropy, var_list=var_list_to_learn)
def feed_dict(train, tr_flag=0):
#Make a TensorFlow feed_dict: maps data onto Tensor placeholders.
if train or FLAGS.fake_data:
xs = tr_data1[tr_flag:tr_flag + 16, :]
ys = tr_label1[tr_flag:tr_flag + 16, :]
k = FLAGS.dropout
else:
xs = ts_data1
ys = ts_label1
k = 1.0
return {x: xs, y_: ys}
with tf.name_scope('accuracy'):
with tf.name_scope('correct_prediction'):
correct_prediction = tf.equal(tf.argmax(y, 1), tf.argmax(y_, 1))
with tf.name_scope('accuracy'):
accuracy = tf.reduce_mean(tf.cast(correct_prediction, tf.float32))
tf.summary.scalar('accuracy', accuracy)
# Merge all the summaries and write them out to /tmp/tensorflow/mnist/logs/mnist_with_summaries (by default)
merged = tf.summary.merge_all()
train_writer = tf.summary.FileWriter(FLAGS.log_dir + '/train', sess.graph)
test_writer = tf.summary.FileWriter(FLAGS.log_dir + '/test')
tf.global_variables_initializer().run()
# Generating randomly geopath
geopath_set = np.zeros(FLAGS.candi, dtype=object)
for i in range(FLAGS.candi):
geopath_set[i] = pathnet.get_geopath(FLAGS.L, FLAGS.M, FLAGS.N)
# parameters placeholders and ops
var_update_ops = np.zeros(len(var_list_to_learn), dtype=object)
var_update_placeholders = np.zeros(len(var_list_to_learn), dtype=object)
for i in range(len(var_list_to_learn)):
var_update_placeholders[i] = tf.placeholder(
var_list_to_learn[i].dtype, shape=var_list_to_learn[i].get_shape())
var_update_ops[i] = var_list_to_learn[i].assign(
var_update_placeholders[i])
# geopathes placeholders and ops
geopath_update_ops = np.zeros((len(geopath), len(geopath[0])),
dtype=object)
geopath_update_placeholders = np.zeros((len(geopath), len(geopath[0])),
dtype=object)
for i in range(len(geopath)):
for j in range(len(geopath[0])):
geopath_update_placeholders[i, j] = tf.placeholder(
geopath[i, j].dtype, shape=geopath[i, j].get_shape())
geopath_update_ops[i, j] = geopath[i, j].assign(
geopath_update_placeholders[i, j])
tr_flag = 0
for i in range(FLAGS.max_steps):
# Select Two Candidate to Tournament
first, second = pathnet.select_two_candi(FLAGS.candi)
# First Candidate
pathnet.geopath_insert(sess, geopath_update_placeholders,
geopath_update_ops, geopath_set[first], FLAGS.L,
FLAGS.M)
var_list_backup = pathnet.parameters_backup(var_list_to_learn)
tr_flag_bak = tr_flag
for j in range(FLAGS.T):
summary_geo1_tr, _ = sess.run([merged, train_step],
feed_dict=feed_dict(train=True,
tr_flag=tr_flag))
tr_flag = (tr_flag + 16) % data_num_len1
summary_geo1_ts, acc_geo1 = sess.run([merged, accuracy],
feed_dict=feed_dict(train=False))
var_list_task1 = pathnet.parameters_backup(var_list_to_learn)
tr_flag = tr_flag_bak
# Second Candidate
pathnet.geopath_insert(sess, geopath_update_placeholders,
geopath_update_ops, geopath_set[second],
FLAGS.L, FLAGS.M)
pathnet.parameters_update(sess, var_update_placeholders,
var_update_ops, var_list_backup)
for j in range(FLAGS.T):
summary_geo2_tr, _ = sess.run([merged, train_step],
feed_dict=feed_dict(train=True,
tr_flag=tr_flag))
tr_flag = (tr_flag + 16) % data_num_len1
summary_geo2_ts, acc_geo2 = sess.run([merged, accuracy],
feed_dict=feed_dict(train=False))
var_list_task2 = pathnet.parameters_backup(var_list_to_learn)
# Compatition between two cases
if (acc_geo1 > acc_geo2):
geopath_set[second] = np.copy(geopath_set[first])
pathnet.mutation(geopath_set[second], FLAGS.L, FLAGS.M, FLAGS.N)
pathnet.parameters_update(sess, var_update_placeholders,
var_update_ops, var_list_task1)
train_writer.add_summary(summary_geo1_tr, i)
test_writer.add_summary(summary_geo1_ts, i)
print('Accuracy at step %s: %s' % (i + 1, acc_geo1))
else:
geopath_set[first] = np.copy(geopath_set[second])
pathnet.mutation(geopath_set[first], FLAGS.L, FLAGS.M, FLAGS.N)
pathnet.parameters_update(sess, var_update_placeholders,
var_update_ops, var_list_task2)
train_writer.add_summary(summary_geo2_tr, i)
test_writer.add_summary(summary_geo2_ts, i)
print('Accuracy at step %s: %s' % (i + 1, acc_geo2))
if (acc_geo1 > acc_geo2):
task1_acc = acc_geo1
task1_optimal_path = geopath_set[first]
else:
task1_acc = acc_geo2
task1_optimal_path = geopath_set[second]
## TASK 2 (SVHN)
# Fix task1 Optimal Path
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (task1_optimal_path[i, j] == 1.0):
fixed_list[i, j] = '1'
else:
rein_list[i, j] = '1'
# reinitializing weights
var_list_to_reinitial = []
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (rein_list[i, j] == '1'):
var_list_to_reinitial += weights_list[i, j] + biases_list[i, j]
tf.variables_initializer(var_list=var_list_to_reinitial).run()
# Output Layer for Task2
output_weights2 = pathnet.module_weight_variable([FLAGS.filt, 10])
output_biases2 = pathnet.module_bias_variable([10])
y2 = pathnet.nn_layer(net,
output_weights2,
output_biases2,
'output_layer2',
act=tf.identity)
with tf.name_scope('cross_entropy2'):
diff2 = tf.nn.softmax_cross_entropy_with_logits(labels=y_, logits=y2)
with tf.name_scope('total2'):
cross_entropy2 = tf.reduce_mean(diff2)
tf.summary.scalar('cross_entropy2', cross_entropy2)
# Need to learn variables
#var_list_to_learn=[]+input_weights+input_biases+output_weights2+output_biases2;
var_list_to_learn = [] + output_weights2 + output_biases2
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '0'):
var_list_to_learn += weights_list[i, j] + biases_list[i, j]
with tf.name_scope('train2'):
train_step2 = tf.train.AdamOptimizer(FLAGS.learning_rate).minimize(
cross_entropy2, var_list=var_list_to_learn)
#train_step2 = tf.train.GradientDescentOptimizer(FLAGS.learning_rate).minimize(
# cross_entropy2,var_list=var_list_to_learn)
with tf.name_scope('accuracy2'):
with tf.name_scope('correct_prediction2'):
correct_prediction2 = tf.equal(tf.argmax(y2, 1), tf.argmax(y_, 1))
with tf.name_scope('accuracy2'):
accuracy2 = tf.reduce_mean(tf.cast(correct_prediction2,
tf.float32))
tf.summary.scalar('accuracy2', accuracy2)
# Merge all the summaries and write them out to /tmp/tensorflow/mnist/logs/mnist_with_summaries (by default)
merged2 = tf.summary.merge_all()
train_writer = tf.summary.FileWriter(FLAGS.log_dir + '/train2', sess.graph)
test_writer = tf.summary.FileWriter(FLAGS.log_dir + '/test2')
tf.global_variables_initializer().run()
def feed_dict2(train, tr_flag=0):
#Make a TensorFlow feed_dict: maps data onto Tensor placeholders.
if train or FLAGS.fake_data:
xs = tr_data2[tr_flag:tr_flag + 16, :]
ys = tr_label2[tr_flag:tr_flag + 16, :]
k = FLAGS.dropout
else:
xs = ts_data2
ys = ts_label2
k = 1.0
return {x: xs, y_: ys}
# Generating randomly geopath
geopath_set = np.zeros(FLAGS.candi, dtype=object)
for i in range(FLAGS.candi):
geopath_set[i] = pathnet.get_geopath(FLAGS.L, FLAGS.M, FLAGS.N)
# parameters placeholders and ops
var_update_ops = np.zeros(len(var_list_to_learn), dtype=object)
var_update_placeholders = np.zeros(len(var_list_to_learn), dtype=object)
for i in range(len(var_list_to_learn)):
var_update_placeholders[i] = tf.placeholder(
var_list_to_learn[i].dtype, shape=var_list_to_learn[i].get_shape())
var_update_ops[i] = var_list_to_learn[i].assign(
var_update_placeholders[i])
tr_flag = 0
for i in range(FLAGS.max_steps):
# Select Two Candidate to Tournament
first, second = pathnet.select_two_candi(FLAGS.candi)
# First Candidate
pathnet.geopath_insert(sess, geopath_update_placeholders,
geopath_update_ops, geopath_set[first], FLAGS.L,
FLAGS.M)
tr_flag_bak = tr_flag
var_list_backup = pathnet.parameters_backup(var_list_to_learn)
for j in range(FLAGS.T):
summary_geo1_tr, _ = sess.run([merged2, train_step2],
feed_dict=feed_dict2(True, tr_flag))
tr_flag = (tr_flag + 16) % data_num_len2
summary_geo1_ts, acc_geo1 = sess.run([merged2, accuracy2],
feed_dict=feed_dict2(False))
var_list_task1 = pathnet.parameters_backup(var_list_to_learn)
# Second Candidate
pathnet.geopath_insert(sess, geopath_update_placeholders,
geopath_update_ops, geopath_set[first], FLAGS.L,
FLAGS.M)
tr_flag = tr_flag_bak
pathnet.parameters_update(sess, var_update_placeholders,
var_update_ops, var_list_backup)
for j in range(FLAGS.T - 1):
summary_geo2_tr, _, acc_geo2_tmp = sess.run(
[merged2, train_step2, accuracy2],
feed_dict=feed_dict2(True, tr_flag))
tr_flag = (tr_flag + 16) % data_num_len2
summary_geo2_ts, acc_geo2 = sess.run([merged2, accuracy2],
feed_dict=feed_dict2(False))
var_list_task2 = pathnet.parameters_backup(var_list_to_learn)
# Compatition between two cases
if (acc_geo1 > acc_geo2):
geopath_set[second] = np.copy(geopath_set[first])
pathnet.mutation(geopath_set[second], FLAGS.L, FLAGS.M, FLAGS.N)
pathnet.parameters_update(sess, var_update_placeholders,
var_update_ops, var_list_task1)
train_writer.add_summary(summary_geo1_tr, i)
test_writer.add_summary(summary_geo1_ts, i)
print('Accuracy at step %s: %s' % (i, acc_geo1))
else:
geopath_set[first] = np.copy(geopath_set[second])
pathnet.mutation(geopath_set[first], FLAGS.L, FLAGS.M, FLAGS.N)
pathnet.parameters_update(sess, var_update_placeholders,
var_update_ops, var_list_task2)
train_writer.add_summary(summary_geo2_tr, i)
test_writer.add_summary(summary_geo2_ts, i)
print('Accuracy at step %s: %s' % (i, acc_geo2))
if (acc_geo1 > acc_geo2):
task2_acc = acc_geo1
else:
task2_acc = acc_geo2
print("CIFAR10 Acc:" + str(task1_acc) + ",SVHN:" + str(task2_acc))
train_writer.close()
test_writer.close()
def train():
# Import data
mnist = input_data.read_data_sets(FLAGS.data_dir,
one_hot=True,
fake_data=FLAGS.fake_data)
total_tr_data, total_tr_label = mnist.train.next_batch(
mnist.train._num_examples)
# Gathering a1 Data
tr_data_a1 = total_tr_data[(total_tr_label[:, FLAGS.a1] == 1.0)]
for i in range(len(tr_data_a1)):
for j in range(len(tr_data_a1[0])):
rand_num = np.random.rand()
if (rand_num >= 0.5):
tr_data_a1[i, j] = np.minimum(tr_data_a1[i, j] + rand_num, 1.0)
# Gathering a2 Data
tr_data_a2 = total_tr_data[(total_tr_label[:, FLAGS.a2] == 1.0)]
for i in range(len(tr_data_a2)):
for j in range(len(tr_data_a2[0])):
rand_num = np.random.rand()
if (rand_num >= 0.5):
tr_data_a2[i, j] = np.minimum(tr_data_a2[i, j] + rand_num, 1.0)
# Gathering b1 Data
tr_data_b1 = total_tr_data[(total_tr_label[:, FLAGS.b1] == 1.0)]
for i in range(len(tr_data_b1)):
for j in range(len(tr_data_b1[0])):
rand_num = np.random.rand()
if (rand_num >= 0.5):
tr_data_b1[i, j] = np.minimum(tr_data_b1[i, j] + rand_num, 1.0)
# Gathering b2 Data
tr_data_b2 = total_tr_data[(total_tr_label[:, FLAGS.b2] == 1.0)]
for i in range(len(tr_data_b2)):
for j in range(len(tr_data_b2[0])):
rand_num = np.random.rand()
if (rand_num >= 0.5):
tr_data_b2[i, j] = np.minimum(tr_data_b2[i, j] + rand_num, 1.0)
tr_data1 = np.append(tr_data_a1, tr_data_a2, axis=0)
tr_label1 = np.zeros((len(tr_data1), 2), dtype=float)
for i in range(len(tr_data1)):
if (i < len(tr_data_a1)):
tr_label1[i, 0] = 1.0
else:
tr_label1[i, 1] = 1.0
tr_data2 = np.append(tr_data_b1, tr_data_b2, axis=0)
tr_label2 = np.zeros((len(tr_data2), 2), dtype=float)
for i in range(len(tr_data2)):
if (i < len(tr_data_b1)):
tr_label2[i, 0] = 1.0
else:
tr_label2[i, 1] = 1.0
## TASK 1
sess = tf.InteractiveSession()
# Input placeholders
with tf.name_scope('input'):
x = tf.placeholder(tf.float32, [None, 784], name='x-input')
y_ = tf.placeholder(tf.float32, [None, 2], name='y-input')
with tf.name_scope('input_reshape'):
image_shaped_input = tf.reshape(x, [-1, 28, 28, 1])
tf.summary.image('input', image_shaped_input, 2)
# geopath_examples
geopath = pathnet.geopath_initializer(FLAGS.L, FLAGS.M)
# fixed weights list
fixed_list = np.ones((FLAGS.L, FLAGS.M), dtype=str)
for i in range(FLAGS.L):
for j in range(FLAGS.M):
fixed_list[i, j] = '0'
# Hidden Layers
weights_list = np.zeros(
(FLAGS.L, FLAGS.M),
dtype=object) # weights_list also record conv_kernels
biases_list = np.zeros((FLAGS.L, FLAGS.M), dtype=object)
# model define
layer_modules_list = np.zeros(FLAGS.M, dtype=object)
# conv layer
i = 0
for j in range(FLAGS.M):
layer_modules_list[j], weights_list[i, j], biases_list[
i,
j] = pathnet.conv_module(image_shaped_input, FLAGS.filt, [5, 5],
geopath[i, j], 1,
'layer' + str(i + 1) + "_" + str(j + 1))
net = np.sum(layer_modules_list) / FLAGS.M
# res-fire layer
i = 1
for j in range(FLAGS.M):
layer_modules_list[j], weights_list[i, j], biases_list[
i, j] = pathnet.res_fire_layer(
net, FLAGS.filt, 10, 10, geopath[i, j],
'layer' + str(i + 1) + "_" + str(j + 1))
net = np.sum(layer_modules_list) / FLAGS.M
# dimensionality_reduction layer
i = 2
for j in range(FLAGS.M):
layer_modules_list[j], weights_list[i, j], biases_list[
i, j] = pathnet.Dimensionality_reduction_module(
net, 10, geopath[i, j],
'layer' + str(i + 1) + "_" + str(j + 1))
net = np.sum(layer_modules_list) / FLAGS.M
# conv layer
i = 3
for j in range(FLAGS.M):
layer_modules_list[j], weights_list[i, j], biases_list[
i,
j] = pathnet.conv_module(image_shaped_input, FLAGS.filt, [5, 5],
geopath[i, j], 1,
'layer' + str(i + 1) + "_" + str(j + 1))
net = np.sum(layer_modules_list) / FLAGS.M
# output layer
# reshape
_shape = net.shape[1:]
_length = 1
for _i in _shape:
_length *= int(_i)
net = tf.reshape(net, [-1, _length])
# full connection layer
y, output_weights, output_biases = pathnet.nn_layer(
net, 2, 'output_layer')
# Cross Entropy
with tf.name_scope('cross_entropy'):
diff = tf.nn.softmax_cross_entropy_with_logits(labels=y_, logits=y)
with tf.name_scope('total'):
cross_entropy = tf.reduce_mean(diff)
tf.summary.scalar('cross_entropy', cross_entropy)
# Need to learn variables
var_list_to_learn = [] + output_weights + output_biases
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '0'):
var_list_to_learn += weights_list[i, j] + biases_list[i, j]
# GradientDescent
with tf.name_scope('train'):
train_step = tf.train.GradientDescentOptimizer(
FLAGS.learning_rate).minimize(cross_entropy,
var_list=var_list_to_learn)
# Accuracy
with tf.name_scope('accuracy'):
with tf.name_scope('correct_prediction'):
correct_prediction = tf.equal(tf.argmax(y, 1), tf.argmax(y_, 1))
with tf.name_scope('accuracy'):
accuracy = tf.reduce_mean(tf.cast(correct_prediction, tf.float32))
tf.summary.scalar('accuracy', accuracy)
# Merge all the summaries and write them out to /tmp/tensorflow/mnist/logs/mnist_with_summaries (by default)
merged = tf.summary.merge_all()
train_writer = tf.summary.FileWriter(FLAGS.log_dir + '/train1', sess.graph)
test_writer = tf.summary.FileWriter(FLAGS.log_dir + '/test1')
tf.global_variables_initializer().run()
# Generating randomly geopath
geopath_set = np.zeros(FLAGS.candi, dtype=object)
for i in range(FLAGS.candi):
geopath_set[i] = pathnet.get_geopath(FLAGS.L, FLAGS.M, FLAGS.N)
# parameters placeholders and ops
var_update_ops = np.zeros(len(var_list_to_learn), dtype=object)
var_update_placeholders = np.zeros(len(var_list_to_learn), dtype=object)
for i in range(len(var_list_to_learn)):
var_update_placeholders[i] = tf.placeholder(
var_list_to_learn[i].dtype, shape=var_list_to_learn[i].get_shape())
var_update_ops[i] = var_list_to_learn[i].assign(
var_update_placeholders[i])
# geopathes placeholders and ops
geopath_update_ops = np.zeros((len(geopath), len(geopath[0])),
dtype=object)
geopath_update_placeholders = np.zeros((len(geopath), len(geopath[0])),
dtype=object)
for i in range(len(geopath)):
for j in range(len(geopath[0])):
geopath_update_placeholders[i, j] = tf.placeholder(
geopath[i, j].dtype, shape=geopath[i, j].get_shape())
geopath_update_ops[i, j] = geopath[i, j].assign(
geopath_update_placeholders[i, j])
acc_geo = np.zeros(FLAGS.B, dtype=float)
summary_geo = np.zeros(FLAGS.B, dtype=object)
for i in range(FLAGS.max_steps):
# Select Candidates to Tournament
compet_idx = range(FLAGS.candi)
np.random.shuffle(compet_idx)
compet_idx = compet_idx[:FLAGS.B]
# Learning & Evaluating
for j in range(len(compet_idx)):
# Shuffle the data
idx = range(len(tr_data1))
np.random.shuffle(idx)
tr_data1 = tr_data1[idx]
tr_label1 = tr_label1[idx]
# Insert Candidate
pathnet.geopath_insert(sess, geopath_update_placeholders,
geopath_update_ops,
geopath_set[compet_idx[j]], FLAGS.L,
FLAGS.M)
acc_geo_tr = 0
for k in range(FLAGS.T):
summary_geo_tr, _, acc_geo_tmp = sess.run(
[merged, train_step, accuracy],
feed_dict={
x:
tr_data1[k * FLAGS.batch_num:(k + 1) *
FLAGS.batch_num, :],
y_:
tr_label1[k * FLAGS.batch_num:(k + 1) *
FLAGS.batch_num, :]
})
acc_geo_tr += acc_geo_tmp
acc_geo[j] = acc_geo_tr / FLAGS.T
summary_geo[j] = summary_geo_tr
# Tournament
winner_idx = np.argmax(acc_geo)
acc = acc_geo[winner_idx]
summary = summary_geo[winner_idx]
# Copy and Mutation
for j in range(len(compet_idx)):
if (j != winner_idx):
geopath_set[compet_idx[j]] = np.copy(
geopath_set[compet_idx[winner_idx]])
geopath_set[compet_idx[j]] = pathnet.mutation(
geopath_set[compet_idx[j]], FLAGS.L, FLAGS.M, FLAGS.N)
train_writer.add_summary(summary, i)
print('Training Accuracy at step %s: %s' % (i, acc))
if (acc >= 0.99):
print('Learning Done!!')
print('Optimal Path is as followed.')
print(geopath_set[compet_idx[winner_idx]])
task1_optimal_path = geopath_set[compet_idx[winner_idx]]
break
"""
geopath_sum=np.zeros((len(geopath),len(geopath[0])),dtype=float);
for j in range(len(geopath_set)):
for k in range(len(geopath)):
for l in range(len(geopath[0])):
geopath_sum[k][l]+=geopath_set[j][k][l];
print(geopath_sum);
"""
# record steps to find optimal path in task1
iter_task1 = i
# Fix task1 Optimal Path
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (task1_optimal_path[i, j] == 1.0):
fixed_list[i, j] = '1'
# Get variables of fixed list
var_list_to_fix = []
#var_list_to_fix=[]+output_weights+output_biases;
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '1'):
var_list_to_fix += weights_list[i, j] + biases_list[i, j]
var_list_fix = pathnet.parameters_backup(var_list_to_fix)
"""
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if(task1_optimal_path[i,j]==1.0):
fixed_list[i,j]='0';
"""
# parameters placeholders and ops
var_fix_ops = np.zeros(len(var_list_to_fix), dtype=object)
var_fix_placeholders = np.zeros(len(var_list_to_fix), dtype=object)
for i in range(len(var_list_to_fix)):
var_fix_placeholders[i] = tf.placeholder(
var_list_to_fix[i].dtype, shape=var_list_to_fix[i].get_shape())
var_fix_ops[i] = var_list_to_fix[i].assign(var_fix_placeholders[i])
## TASK 2
# Need to learn variables
var_list_to_learn = [] + output_weights + output_biases
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '0'):
var_list_to_learn += weights_list[i, j] + biases_list[i, j]
'''
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if(fixed_list[i,j]=='1'):
tmp=biases_list[i,j][0];
break;
break;
'''
# Initialization
merged = tf.summary.merge_all()
train_writer = tf.summary.FileWriter(FLAGS.log_dir + '/train2', sess.graph)
test_writer = tf.summary.FileWriter(FLAGS.log_dir + '/test2')
tf.global_variables_initializer().run()
# Update fixed values
pathnet.parameters_update(sess, var_fix_placeholders, var_fix_ops,
var_list_fix)
# GradientDescent
with tf.name_scope('train'):
train_step = tf.train.GradientDescentOptimizer(
FLAGS.learning_rate).minimize(cross_entropy,
var_list=var_list_to_learn)
# Generating randomly geopath
geopath_set = np.zeros(FLAGS.candi, dtype=object)
for i in range(FLAGS.candi):
geopath_set[i] = pathnet.get_geopath(FLAGS.L, FLAGS.M, FLAGS.N)
# parameters placeholders and ops
var_update_ops = np.zeros(len(var_list_to_learn), dtype=object)
var_update_placeholders = np.zeros(len(var_list_to_learn), dtype=object)
for i in range(len(var_list_to_learn)):
var_update_placeholders[i] = tf.placeholder(
var_list_to_learn[i].dtype, shape=var_list_to_learn[i].get_shape())
var_update_ops[i] = var_list_to_learn[i].assign(
var_update_placeholders[i])
acc_geo = np.zeros(FLAGS.B, dtype=float)
summary_geo = np.zeros(FLAGS.B, dtype=object)
for i in range(FLAGS.max_steps):
# Select Candidates to Tournament
compet_idx = range(FLAGS.candi)
np.random.shuffle(compet_idx)
compet_idx = compet_idx[:FLAGS.B]
# Learning & Evaluating
for j in range(len(compet_idx)):
# Shuffle the data
idx = range(len(tr_data2))
np.random.shuffle(idx)
tr_data2 = tr_data2[idx]
tr_label2 = tr_label2[idx]
geopath_insert = np.copy(geopath_set[compet_idx[j]])
for l in range(FLAGS.L):
for m in range(FLAGS.M):
if (fixed_list[l, m] == '1'):
geopath_insert[l, m] = 1.0
# Insert Candidate
pathnet.geopath_insert(sess, geopath_update_placeholders,
geopath_update_ops, geopath_insert, FLAGS.L,
FLAGS.M)
acc_geo_tr = 0
for k in range(FLAGS.T):
summary_geo_tr, _, acc_geo_tmp = sess.run(
[merged, train_step, accuracy],
feed_dict={
x:
tr_data2[k * FLAGS.batch_num:(k + 1) *
FLAGS.batch_num, :],
y_:
tr_label2[k * FLAGS.batch_num:(k + 1) *
FLAGS.batch_num, :]
})
acc_geo_tr += acc_geo_tmp
acc_geo[j] = acc_geo_tr / FLAGS.T
summary_geo[j] = summary_geo_tr
# Tournament
winner_idx = np.argmax(acc_geo)
acc = acc_geo[winner_idx]
summary = summary_geo[winner_idx]
# Copy and Mutation
for j in range(len(compet_idx)):
if (j != winner_idx):
geopath_set[compet_idx[j]] = np.copy(
geopath_set[compet_idx[winner_idx]])
geopath_set[compet_idx[j]] = pathnet.mutation(
geopath_set[compet_idx[j]], FLAGS.L, FLAGS.M, FLAGS.N)
train_writer.add_summary(summary, i)
print('Training Accuracy at step %s: %s' % (i, acc))
if (acc >= 0.99):
print('Learning Done!!')
print('Optimal Path is as followed.')
print(geopath_set[compet_idx[winner_idx]])
task2_optimal_path = geopath_set[compet_idx[winner_idx]]
break
"""
geopath_sum=np.zeros((len(geopath),len(geopath[0])),dtype=float);
for j in range(len(geopath_set)):
for k in range(len(geopath)):
for l in range(len(geopath[0])):
geopath_sum[k][l]+=geopath_set[j][k][l];
print(geopath_sum);
"""
iter_task2 = i
overlap = 0
for i in range(len(task1_optimal_path)):
for j in range(len(task1_optimal_path[0])):
if (task1_optimal_path[i, j] == task2_optimal_path[i, j]) & (
task1_optimal_path[i, j] == 1.0):
overlap += 1
print("Entire Iter:" + str(iter_task1 + iter_task2) + ",TASK1:" +
str(iter_task1) + ",TASK2:" + str(iter_task2) + ",Overlap:" +
str(overlap))
train_writer.close()
test_writer.close()
def train():
# Import data
mnist = input_data.read_data_sets(FLAGS.data_dir,
one_hot=True,
fake_data=FLAGS.fake_data)
total_tr_data, total_tr_label = mnist.train.next_batch(
mnist.train._num_examples)
# Gathering a1 Data
tr_data_a1 = total_tr_data[(total_tr_label[:, FLAGS.a1] == 1.0)]
for i in range(len(tr_data_a1)):
for j in range(len(tr_data_a1[0])):
rand_num = np.random.rand()
if (rand_num >= 0.5):
tr_data_a1[i, j] = np.minimum(tr_data_a1[i, j] + rand_num, 1.0)
# Gathering a2 Data
tr_data_a2 = total_tr_data[(total_tr_label[:, FLAGS.a2] == 1.0)]
for i in range(len(tr_data_a2)):
for j in range(len(tr_data_a2[0])):
rand_num = np.random.rand()
if (rand_num >= 0.5):
tr_data_a2[i, j] = np.minimum(tr_data_a2[i, j] + rand_num, 1.0)
# Gathering b1 Data
tr_data_b1 = total_tr_data[(total_tr_label[:, FLAGS.b1] == 1.0)]
for i in range(len(tr_data_b1)):
for j in range(len(tr_data_b1[0])):
rand_num = np.random.rand()
if (rand_num >= 0.5):
tr_data_b1[i, j] = np.minimum(tr_data_b1[i, j] + rand_num, 1.0)
# Gathering b2 Data
tr_data_b2 = total_tr_data[(total_tr_label[:, FLAGS.b2] == 1.0)]
for i in range(len(tr_data_b2)):
for j in range(len(tr_data_b2[0])):
rand_num = np.random.rand()
if (rand_num >= 0.5):
tr_data_b2[i, j] = np.minimum(tr_data_b2[i, j] + rand_num, 1.0)
## TASK 1
sess = tf.InteractiveSession()
# Input placeholders
with tf.name_scope('input'):
x = tf.placeholder(tf.float32, [None, 784], name='x-input')
y_ = tf.placeholder(tf.float32, [None, 2], name='y-input')
with tf.name_scope('input_reshape'):
image_shaped_input = tf.reshape(x, [-1, 28, 28, 1])
tf.summary.image('input', image_shaped_input, 2)
# geopath_examples
geopath = pathnet.geopath_initializer(FLAGS.L, FLAGS.M)
# fixed weights list
fixed_list = np.ones((FLAGS.L, FLAGS.M), dtype=str)
for i in range(FLAGS.L):
for j in range(FLAGS.M):
fixed_list[i, j] = '0'
# Hidden Layers
weights_list = np.zeros((FLAGS.L, FLAGS.M), dtype=object)
biases_list = np.zeros((FLAGS.L, FLAGS.M), dtype=object)
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (i == 0):
weights_list[i, j] = pathnet.module_weight_variable(
[784, FLAGS.filt])
biases_list[i, j] = pathnet.module_bias_variable([FLAGS.filt])
else:
weights_list[i, j] = pathnet.module_weight_variable(
[FLAGS.filt, FLAGS.filt])
biases_list[i, j] = pathnet.module_bias_variable([FLAGS.filt])
for i in range(FLAGS.L):
layer_modules_list = np.zeros(FLAGS.M, dtype=object)
for j in range(FLAGS.M):
if (i == 0):
layer_modules_list[j] = pathnet.module(
x, weights_list[i, j], biases_list[i, j],
'layer' + str(i + 1) + "_" + str(j + 1)) * geopath[i, j]
else:
layer_modules_list[j] = pathnet.module2(
j, net, weights_list[i, j], biases_list[i, j],
'layer' + str(i + 1) + "_" + str(j + 1)) * geopath[i, j]
net = np.sum(layer_modules_list)
# Output Layer
output_weights = pathnet.module_weight_variable([FLAGS.filt, 2])
output_biases = pathnet.module_bias_variable([2])
y = pathnet.nn_layer(net, output_weights, output_biases, 'output_layer')
# Cross Entropy
with tf.name_scope('cross_entropy'):
diff = tf.nn.softmax_cross_entropy_with_logits(labels=y_, logits=y)
with tf.name_scope('total'):
cross_entropy = tf.reduce_mean(diff)
tf.summary.scalar('cross_entropy', cross_entropy)
# Need to learn variables
var_list_to_learn = [] + output_weights + output_biases
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '0'):
var_list_to_learn += weights_list[i, j] + biases_list[i, j]
# GradientDescent
with tf.name_scope('train'):
train_step = tf.train.GradientDescentOptimizer(
FLAGS.learning_rate).minimize(cross_entropy,
var_list=var_list_to_learn)
# Accuracy
with tf.name_scope('accuracy'):
with tf.name_scope('correct_prediction'):
correct_prediction = tf.equal(tf.argmax(y, 1), tf.argmax(y_, 1))
with tf.name_scope('accuracy'):
accuracy = tf.reduce_mean(tf.cast(correct_prediction, tf.float32))
tf.summary.scalar('accuracy', accuracy)
# Merge all the summaries and write them out to /tmp/tensorflow/mnist/logs/mnist_with_summaries (by default)
merged = tf.summary.merge_all()
train_writer = tf.summary.FileWriter(FLAGS.log_dir + '/train', sess.graph)
test_writer = tf.summary.FileWriter(FLAGS.log_dir + '/test')
tf.global_variables_initializer().run()
# Make a TensorFlow feed_dict: maps data onto Tensor placeholders.
def feed_dict(train, batch_num=0, tr_flag1=0, tr_flag2=0):
if train or FLAGS.fake_data:
x_1 = tr_data_a1[tr_flag1:tr_flag1 + batch_num, :]
x_2 = tr_data_a2[tr_flag2:tr_flag2 + batch_num, :]
if (len(x_1) < batch_num):
x_1 = np.append(x_1,
tr_data_a1[:(tr_flag1 + batch_num) %
len(tr_data_a1), :],
axis=0)
if (len(x_2) < batch_num):
x_2 = np.append(x_2,
tr_data_a2[:(tr_flag2 + batch_num) %
len(tr_data_a2), :],
axis=0)
xs = np.append(x_1, x_2, axis=0)
ys = np.zeros((batch_num * 2, 2), dtype=float)
for i in range(len(ys)):
if (i < batch_num):
ys[i, 0] = 1.0
else:
ys[i, 1] = 1.0
return {x: xs, y_: ys}
# Generating randomly geopath
geopath_set = np.zeros(FLAGS.candi, dtype=object)
for i in range(FLAGS.candi):
geopath_set[i] = pathnet.get_geopath(FLAGS.L, FLAGS.M, FLAGS.N)
# parameters placeholders and ops
var_update_ops = np.zeros(len(var_list_to_learn), dtype=object)
var_update_placeholders = np.zeros(len(var_list_to_learn), dtype=object)
for i in range(len(var_list_to_learn)):
var_update_placeholders[i] = tf.placeholder(
var_list_to_learn[i].dtype, shape=var_list_to_learn[i].get_shape())
var_update_ops[i] = var_list_to_learn[i].assign(
var_update_placeholders[i])
# geopathes placeholders and ops
geopath_update_ops = np.zeros((len(geopath), len(geopath[0])),
dtype=object)
geopath_update_placeholders = np.zeros((len(geopath), len(geopath[0])),
dtype=object)
for i in range(len(geopath)):
for j in range(len(geopath[0])):
geopath_update_placeholders[i, j] = tf.placeholder(
geopath[i, j].dtype, shape=geopath[i, j].get_shape())
geopath_update_ops[i, j] = geopath[i, j].assign(
geopath_update_placeholders[i, j])
tr_flag1 = 0
tr_flag2 = 0
data_num1 = len(tr_data_a1)
data_num2 = len(tr_data_a2)
for i in range(FLAGS.max_steps):
# Select Two Candidate to Tournament
first, second = pathnet.select_two_candi(FLAGS.candi)
# First Candidate
pathnet.geopath_insert(sess, geopath_update_placeholders,
geopath_update_ops, geopath_set[first], FLAGS.L,
FLAGS.M)
acc_geo1_tr = 0
#var_list_backup=pathnet.parameters_backup(var_list_to_learn);
#tr_flag_bak=tr_flag;
for j in range(FLAGS.T):
summary_geo1_tr, _, acc_geo1_tmp = sess.run(
[merged, train_step, accuracy],
feed_dict=feed_dict(True, int(FLAGS.batch_num / 2),
int(tr_flag1), int(tr_flag2)))
tr_flag1 = (tr_flag1 + FLAGS.batch_num / 2) % data_num1
tr_flag2 = (tr_flag2 + FLAGS.batch_num / 2) % data_num2
acc_geo1_tr += acc_geo1_tmp
#var_list_task1=pathnet.parameters_backup(var_list_to_learn);
#tr_flag=tr_flag_bak;
# Second Candidate
pathnet.geopath_insert(sess, geopath_update_placeholders,
geopath_update_ops, geopath_set[second],
FLAGS.L, FLAGS.M)
acc_geo2_tr = 0
#pathnet.parameters_update(sess,var_update_placeholders,var_update_ops,var_list_backup);
for j in range(FLAGS.T):
summary_geo2_tr, _, acc_geo2_tmp = sess.run(
[merged, train_step, accuracy],
feed_dict=feed_dict(True, int(FLAGS.batch_num / 2),
int(tr_flag1), int(tr_flag2)))
tr_flag1 = (tr_flag1 + FLAGS.batch_num / 2) % data_num1
tr_flag2 = (tr_flag2 + FLAGS.batch_num / 2) % data_num2
acc_geo2_tr += acc_geo2_tmp
#var_list_task2=pathnet.parameters_backup(var_list_to_learn);
# Compatition between two cases
if (acc_geo1_tr > acc_geo2_tr):
geopath_set[second] = np.copy(geopath_set[first])
geopath_set[second] = pathnet.mutation(geopath_set[second],
FLAGS.L, FLAGS.M, FLAGS.N)
#pathnet.parameters_update(sess,var_update_placeholders,var_update_ops,var_list_task1);
train_writer.add_summary(summary_geo1_tr, i)
print('Training Accuracy at step %s: %s' %
(i, acc_geo1_tr / FLAGS.T))
if (acc_geo1_tr / FLAGS.T >= 0.998):
print('Learning Done!!')
print('Optimal Path is as followed.')
print(geopath_set[first])
task1_optimal_path = geopath_set[first]
break
else:
geopath_set[first] = np.copy(geopath_set[second])
geopath_set[first] = pathnet.mutation(geopath_set[first], FLAGS.L,
FLAGS.M, FLAGS.N)
#pathnet.parameters_update(sess,var_update_placeholders,var_update_ops,var_list_task2);
train_writer.add_summary(summary_geo2_tr, i)
print('Training Accuracy at step %s: %s' %
(i, acc_geo2_tr / FLAGS.T))
if (acc_geo2_tr / FLAGS.T >= 0.998):
print('Learning Done!!')
print('Optimal Path is as followed.')
print(geopath_set[second])
task1_optimal_path = geopath_set[second]
break
iter_task1 = i
# Fix task1 Optimal Path
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (task1_optimal_path[i, j] == 1.0):
fixed_list[i, j] = '1'
# Get variables of fixed list
var_list_to_fix = []
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '1'):
var_list_to_fix += weights_list[i, j] + biases_list[i, j]
var_list_fix = pathnet.parameters_backup(var_list_to_fix)
# parameters placeholders and ops
var_fix_ops = np.zeros(len(var_list_to_fix), dtype=object)
var_fix_placeholders = np.zeros(len(var_list_to_fix), dtype=object)
for i in range(len(var_list_to_fix)):
var_fix_placeholders[i] = tf.placeholder(
var_list_to_fix[i].dtype, shape=var_list_to_fix[i].get_shape())
var_fix_ops[i] = var_list_to_fix[i].assign(var_fix_placeholders[i])
## TASK 2
# Need to learn variables
var_list_to_learn = [] + output_weights + output_biases
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '0'):
var_list_to_learn += weights_list[i, j] + biases_list[i, j]
# Fixed variables
var_list_to_fix = []
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '1'):
var_list_to_fix += weights_list[i, j] + biases_list[i, j]
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '1'):
tmp = biases_list[i, j][0]
break
break
# Initialization
tf.global_variables_initializer().run()
# Update fixed values
pathnet.parameters_update(sess, var_fix_placeholders, var_fix_ops,
var_list_fix)
# GradientDescent
with tf.name_scope('train'):
train_step = tf.train.GradientDescentOptimizer(
FLAGS.learning_rate).minimize(cross_entropy,
var_list=var_list_to_learn)
# Make a TensorFlow feed_dict: maps data onto Tensor placeholders.
def feed_dict(train, batch_num, tr_flag1=0, tr_flag2=0):
if train or FLAGS.fake_data:
x_1 = tr_data_b1[tr_flag1:tr_flag1 + batch_num, :]
x_2 = tr_data_b2[tr_flag2:tr_flag2 + batch_num, :]
if (len(x_1) < batch_num):
x_1 = np.append(x_1,
tr_data_b1[:(tr_flag1 + batch_num) %
len(tr_data_b1), :],
axis=0)
if (len(x_2) < batch_num):
x_2 = np.append(x_2,
tr_data_b2[:(tr_flag2 + batch_num) %
len(tr_data_b2), :],
axis=0)
xs = np.append(x_1, x_2, axis=0)
ys = np.zeros((batch_num * 2, 2), dtype=float)
for i in range(len(ys)):
if (i < batch_num):
ys[i, 0] = 1.0
else:
ys[i, 1] = 1.0
return {x: xs, y_: ys}
# Generating randomly geopath
geopath_set = np.zeros(FLAGS.candi, dtype=object)
for i in range(FLAGS.candi):
geopath_set[i] = pathnet.get_geopath(FLAGS.L, FLAGS.M, FLAGS.N)
# parameters placeholders and ops
var_update_ops = np.zeros(len(var_list_to_learn), dtype=object)
var_update_placeholders = np.zeros(len(var_list_to_learn), dtype=object)
for i in range(len(var_list_to_learn)):
var_update_placeholders[i] = tf.placeholder(
var_list_to_learn[i].dtype, shape=var_list_to_learn[i].get_shape())
var_update_ops[i] = var_list_to_learn[i].assign(
var_update_placeholders[i])
tr_flag1 = 0
tr_flag2 = 0
data_num1 = len(tr_data_b1)
data_num2 = len(tr_data_b2)
for i in range(FLAGS.max_steps):
# Select Two Candidate to Tournament
first, second = pathnet.select_two_candi(FLAGS.candi)
# First Candidate
pathnet.geopath_insert(sess, geopath_update_placeholders,
geopath_update_ops, geopath_set[first], FLAGS.L,
FLAGS.M)
acc_geo1_tr = 0
tr_flag1_bak = tr_flag1
tr_flag2_bak = tr_flag2
#var_list_backup=pathnet.parameters_backup(var_list_to_learn);
#tr_flag_bak=tr_flag;
for j in range(FLAGS.T):
summary_geo1_tr, _ = sess.run([merged, train_step],
feed_dict=feed_dict(
True, int(FLAGS.batch_num / 2),
int(tr_flag1), int(tr_flag2)))
tr_flag1 = (tr_flag1 + FLAGS.batch_num / 2) % data_num1
tr_flag2 = (tr_flag2 + FLAGS.batch_num / 2) % data_num2
tr_flag1 = tr_flag1_bak
tr_flag2 = tr_flag2_bak
for j in range(FLAGS.T):
acc_geo1_tmp = sess.run([accuracy],
feed_dict=feed_dict(
True, int(FLAGS.batch_num / 2),
int(tr_flag1), int(tr_flag2)))
tr_flag1 = (tr_flag1 + FLAGS.batch_num / 2) % data_num1
tr_flag2 = (tr_flag2 + FLAGS.batch_num / 2) % data_num2
acc_geo1_tr += acc_geo1_tmp[0]
#var_list_task1=pathnet.parameters_backup(var_list_to_learn);
#tr_flag=tr_flag_bak;
# Second Candidate
pathnet.geopath_insert(sess, geopath_update_placeholders,
geopath_update_ops, geopath_set[second],
FLAGS.L, FLAGS.M)
acc_geo2_tr = 0
tr_flag1 = tr_flag1_bak
tr_flag2 = tr_flag2_bak
#pathnet.parameters_update(sess,var_update_placeholders,var_update_ops,var_list_backup);
for j in range(FLAGS.T):
summary_geo2_tr, _ = sess.run([merged, train_step],
feed_dict=feed_dict(
True, int(FLAGS.batch_num / 2),
int(tr_flag1), int(tr_flag2)))
tr_flag1 = (tr_flag1 + FLAGS.batch_num / 2) % data_num1
tr_flag2 = (tr_flag2 + FLAGS.batch_num / 2) % data_num2
tr_flag1 = tr_flag1_bak
tr_flag2 = tr_flag2_bak
for j in range(FLAGS.T):
acc_geo2_tmp = sess.run([accuracy],
feed_dict=feed_dict(
True, int(FLAGS.batch_num / 2),
int(tr_flag1), int(tr_flag2)))
tr_flag1 = (tr_flag1 + FLAGS.batch_num / 2) % data_num1
tr_flag2 = (tr_flag2 + FLAGS.batch_num / 2) % data_num2
acc_geo2_tr += acc_geo2_tmp[0]
#var_list_task2=pathnet.parameters_backup(var_list_to_learn);
# Compatition between two cases
if (acc_geo1_tr > acc_geo2_tr):
geopath_set[second] = np.copy(geopath_set[first])
pathnet.mutation(geopath_set[second], FLAGS.L, FLAGS.M, FLAGS.N)
#pathnet.parameters_update(sess,var_update_placeholders,var_update_ops,var_list_task1);
train_writer.add_summary(summary_geo1_tr, i)
print('Training Accuracy at step %s: %s' %
(i, acc_geo1_tr / FLAGS.T))
if (acc_geo1_tr / FLAGS.T >= 0.998):
print('Learning Done!!')
print('Optimal Path is as followed.')
print(geopath_set[first])
task2_optimal_path = geopath_set[first]
break
else:
geopath_set[first] = np.copy(geopath_set[second])
pathnet.mutation(geopath_set[first], FLAGS.L, FLAGS.M, FLAGS.N)
#pathnet.parameters_update(sess,var_update_placeholders,var_update_ops,var_list_task2);
train_writer.add_summary(summary_geo2_tr, i)
print('Training Accuracy at step %s: %s' %
(i, acc_geo2_tr / FLAGS.T))
if (acc_geo2_tr / FLAGS.T >= 0.998):
print('Learning Done!!')
print('Optimal Path is as followed.')
print(geopath_set[second])
task2_optimal_path = geopath_set[second]
break
iter_task2 = i
overlap = 0
for i in range(len(task1_optimal_path)):
for j in range(len(task1_optimal_path[0])):
if (task1_optimal_path[i, j] == task2_optimal_path[i, j]) & (
task1_optimal_path[i, j] == 1.0):
overlap += 1
print("Entire Iter:" + str(iter_task1 + iter_task2) + ",Overlap:" +
str(overlap))
train_writer.close()
test_writer.close()
def train():
## Get imageNet dataset file queue for task1 and task2
tr_data1, tr_label1 = imagenet_data.create_file_queue(
FLAGS.imagenet_data_dir1)
tr_data2, tr_label2 = imagenet_data.create_file_queue(
FLAGS.imagenet_data_dir2)
## TASK 1
sess = tf.InteractiveSession()
# Input placeholders
with tf.name_scope('input'):
x = tf.placeholder(tf.float32, [None, 224 * 224 * 3], name='x-input')
y_ = tf.placeholder(tf.float32, [None, 10], name='y-input')
with tf.name_scope('input_reshape'):
image_shaped_input = tf.reshape(x, [-1, 224, 224, 3])
tf.summary.image('input', image_shaped_input, 2)
# geopath_examples
geopath = pathnet.geopath_initializer(FLAGS.L, FLAGS.M)
# fixed weights list
fixed_list = np.ones((FLAGS.L, FLAGS.M), dtype=str)
for i in range(FLAGS.L):
for j in range(FLAGS.M):
fixed_list[i, j] = '0'
# Hidden Layers
weights_list = np.zeros((FLAGS.L, FLAGS.M), dtype=object)
biases_list = np.zeros((FLAGS.L, FLAGS.M), dtype=object)
# model define
layer_modules_list = np.zeros(FLAGS.M, dtype=object)
# conv layer
i = 0
for j in range(FLAGS.M):
layer_modules_list[j], weights_list[i, j], biases_list[
i,
j] = pathnet.conv_module(image_shaped_input, FLAGS.filt, [11, 11],
geopath[i, j], 1,
'layer' + str(i + 1) + "_" + str(j + 1))
net = np.sum(layer_modules_list) / FLAGS.M
# dimensionality_reduction layer
i = 1
for j in range(FLAGS.M):
layer_modules_list[j], weights_list[i, j], biases_list[
i, j] = pathnet.Dimensionality_reduction_module(
net, FLAGS.filt / 2, geopath[i, j],
'layer' + str(i + 1) + "_" + str(j + 1))
net = np.sum(layer_modules_list) / FLAGS.M
# res_fire layer
i = 2
for j in range(FLAGS.M):
layer_modules_list[j], weights_list[i, j], biases_list[
i, j] = pathnet.res_fire_layer(
net, FLAGS.filt / 2, geopath[i, j],
'layer' + str(i + 1) + "_" + str(j + 1))
net = np.sum(layer_modules_list) / FLAGS.M
# dimensionality_reduction layer
i = 3
for j in range(FLAGS.M):
layer_modules_list[j], weights_list[i, j], biases_list[
i, j] = pathnet.Dimensionality_reduction_module(
net, FLAGS.filt / 2, geopath[i, j],
'layer' + str(i + 1) + "_" + str(j + 1))
net = np.sum(layer_modules_list) / FLAGS.M
# reshape before full connection layer
_shape = net.shape[1:]
_length = 1
for _i in _shape:
_length *= int(_i)
net = tf.reshape(net, [-1, _length])
# model1 layer
i = 4
for j in range(FLAGS.M):
layer_modules_list[j], weights_list[i, j], biases_list[
i, j] = pathnet.module(net, FLAGS.full_connection_filt, geopath[i,
j],
'layer' + str(i + 1) + "_" + str(j + 1))
net = np.sum(layer_modules_list) / FLAGS.M
# output layer
y, output_weights, output_biases = pathnet.nn_layer(
net, 10, 'output_layer')
# Cross Entropy
with tf.name_scope('cross_entropy'):
diff = tf.nn.softmax_cross_entropy_with_logits(labels=y_, logits=y)
with tf.name_scope('total'):
cross_entropy = tf.reduce_mean(diff)
tf.summary.scalar('cross_entropy', cross_entropy)
# Need to learn variables
var_list_to_learn = [] + output_weights + output_biases
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '0'):
var_list_to_learn += weights_list[i, j] + biases_list[i, j]
# GradientDescent
with tf.name_scope('train'):
train_step = tf.train.GradientDescentOptimizer(
FLAGS.learning_rate).minimize(cross_entropy,
var_list=var_list_to_learn)
# Accuracy
with tf.name_scope('accuracy'):
with tf.name_scope('correct_prediction'):
correct_prediction = tf.equal(tf.argmax(y, 1), tf.argmax(y_, 1))
with tf.name_scope('accuracy'):
accuracy = tf.reduce_mean(tf.cast(correct_prediction, tf.float32))
tf.summary.scalar('accuracy', accuracy)
# Merge all the summaries and write them out to /tmp/tensorflow/mnist/logs/mnist_with_summaries (by default)
merged = tf.summary.merge_all()
train_writer = tf.summary.FileWriter(FLAGS.log_dir + '/train1', sess.graph)
test_writer = tf.summary.FileWriter(FLAGS.log_dir + '/test1')
# init
tf.global_variables_initializer().run()
tf.local_variables_initializer().run()
# start data reading queue
coord = tf.train.Coordinator()
threads = tf.train.start_queue_runners(sess=sess, coord=coord)
# Generating randomly geopath
geopath_set = np.zeros(FLAGS.candi, dtype=object)
for i in range(FLAGS.candi):
geopath_set[i] = pathnet.get_geopath(FLAGS.L, FLAGS.M, FLAGS.N)
# parameters placeholders and ops
var_update_ops = np.zeros(len(var_list_to_learn), dtype=object)
var_update_placeholders = np.zeros(len(var_list_to_learn), dtype=object)
for i in range(len(var_list_to_learn)):
var_update_placeholders[i] = tf.placeholder(
var_list_to_learn[i].dtype, shape=var_list_to_learn[i].get_shape())
var_update_ops[i] = var_list_to_learn[i].assign(
var_update_placeholders[i])
# geopathes placeholders and ops
geopath_update_ops = np.zeros((len(geopath), len(geopath[0])),
dtype=object)
geopath_update_placeholders = np.zeros((len(geopath), len(geopath[0])),
dtype=object)
for i in range(len(geopath)):
for j in range(len(geopath[0])):
geopath_update_placeholders[i, j] = tf.placeholder(
geopath[i, j].dtype, shape=geopath[i, j].get_shape())
geopath_update_ops[i, j] = geopath[i, j].assign(
geopath_update_placeholders[i, j])
acc_geo = np.zeros(FLAGS.B, dtype=float)
summary_geo = np.zeros(FLAGS.B, dtype=object)
for i in range(FLAGS.max_steps):
# Select Candidates to Tournament
compet_idx = range(FLAGS.candi)
np.random.shuffle(compet_idx)
compet_idx = compet_idx[:FLAGS.B]
# Learning & Evaluating
for j in range(len(compet_idx)):
# Insert Candidate
pathnet.geopath_insert(sess, geopath_update_placeholders,
geopath_update_ops,
geopath_set[compet_idx[j]], FLAGS.L,
FLAGS.M)
acc_geo_tr = 0
for k in range(FLAGS.T):
'''
print(x.shape)
print(tr_data1[k*FLAGS.batch_num:(k+1)*FLAGS.batch_num,:].shape)
print(y.shape)
print(tr_label1[k*FLAGS.batch_num:(k+1)*FLAGS.batch_num,:].shape)
'''
tr_data1_val, tr_label1_val = imagenet_data.read_batch(
sess, tr_data1, tr_label1, FLAGS.batch_num,
FLAGS.imagenet_data_dir1)
summary_geo_tr, _, acc_geo_tmp = sess.run(
[merged, train_step, accuracy],
feed_dict={
x: tr_data1_val,
y_: tr_label1_val
})
acc_geo_tr += acc_geo_tmp
acc_geo[j] = acc_geo_tr / FLAGS.T
summary_geo[j] = summary_geo_tr
# Tournament
winner_idx = np.argmax(acc_geo)
acc = acc_geo[winner_idx]
summary = summary_geo[winner_idx]
# Copy and Mutation
for j in range(len(compet_idx)):
if (j != winner_idx):
geopath_set[compet_idx[j]] = np.copy(
geopath_set[compet_idx[winner_idx]])
geopath_set[compet_idx[j]] = pathnet.mutation(
geopath_set[compet_idx[j]], FLAGS.L, FLAGS.M, FLAGS.N)
train_writer.add_summary(summary, i)
print('Training Accuracy at step %s: %s' % (i, acc))
if i == FLAGS.max_steps - 1:
acc_task1 = acc
task1_optimal_path = geopath_set[compet_idx[winner_idx]]
print('Task1 Optimal Path is as followed.')
print(task1_optimal_path)
# Fix task1 Optimal Path
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (task1_optimal_path[i, j] == 1.0):
fixed_list[i, j] = '1'
# Get variables of fixed list
var_list_to_fix = []
#var_list_to_fix=[]+output_weights+output_biases;
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '1'):
var_list_to_fix += weights_list[i, j] + biases_list[i, j]
var_list_fix = pathnet.parameters_backup(var_list_to_fix)
# parameters placeholders and ops
var_fix_ops = np.zeros(len(var_list_to_fix), dtype=object)
var_fix_placeholders = np.zeros(len(var_list_to_fix), dtype=object)
for i in range(len(var_list_to_fix)):
var_fix_placeholders[i] = tf.placeholder(
var_list_to_fix[i].dtype, shape=var_list_to_fix[i].get_shape())
var_fix_ops[i] = var_list_to_fix[i].assign(var_fix_placeholders[i])
## TASK 2
# Need to learn variables
var_list_to_learn = [] + output_weights + output_biases
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '0'):
var_list_to_learn += weights_list[i, j] + biases_list[i, j]
for i in range(FLAGS.L):
for j in range(FLAGS.M):
if (fixed_list[i, j] == '1'):
tmp = biases_list[i, j][0]
break
break
# Initialization
merged = tf.summary.merge_all()
train_writer = tf.summary.FileWriter(FLAGS.log_dir + '/train2', sess.graph)
test_writer = tf.summary.FileWriter(FLAGS.log_dir + '/test2')
tf.global_variables_initializer().run()
tf.local_variables_initializer().run()
# Update fixed values
pathnet.parameters_update(sess, var_fix_placeholders, var_fix_ops,
var_list_fix)
# GradientDescent
with tf.name_scope('train'):
train_step = tf.train.GradientDescentOptimizer(
FLAGS.learning_rate).minimize(cross_entropy,
var_list=var_list_to_learn)
# Generating randomly geopath
geopath_set = np.zeros(FLAGS.candi, dtype=object)
for i in range(FLAGS.candi):
geopath_set[i] = pathnet.get_geopath(FLAGS.L, FLAGS.M, FLAGS.N)
# parameters placeholders and ops
var_update_ops = np.zeros(len(var_list_to_learn), dtype=object)
var_update_placeholders = np.zeros(len(var_list_to_learn), dtype=object)
for i in range(len(var_list_to_learn)):
var_update_placeholders[i] = tf.placeholder(
var_list_to_learn[i].dtype, shape=var_list_to_learn[i].get_shape())
var_update_ops[i] = var_list_to_learn[i].assign(
var_update_placeholders[i])
acc_geo = np.zeros(FLAGS.B, dtype=float)
summary_geo = np.zeros(FLAGS.B, dtype=object)
for i in range(FLAGS.max_steps):
# Select Candidates to Tournament
compet_idx = range(FLAGS.candi)
np.random.shuffle(compet_idx)
compet_idx = compet_idx[:FLAGS.B]
# Learning & Evaluating
for j in range(len(compet_idx)):
geopath_insert = np.copy(geopath_set[compet_idx[j]])
for l in range(FLAGS.L):
for m in range(FLAGS.M):
if (fixed_list[l, m] == '1'):
geopath_insert[l, m] = 1.0
# Insert Candidate
pathnet.geopath_insert(sess, geopath_update_placeholders,
geopath_update_ops, geopath_insert, FLAGS.L,
FLAGS.M)
acc_geo_tr = 0
for k in range(FLAGS.T):
tr_data2_val, tr_label2_val = imagenet_data.read_batch(
sess, tr_data2, tr_label2, FLAGS.batch_num,
FLAGS.imagenet_data_dir2)
summary_geo_tr, _, acc_geo_tmp = sess.run(
[merged, train_step, accuracy],
feed_dict={
x: tr_data2_val,
y_: tr_label2_val
})
acc_geo_tr += acc_geo_tmp
acc_geo[j] = acc_geo_tr / FLAGS.T
summary_geo[j] = summary_geo_tr
# Tournament
winner_idx = np.argmax(acc_geo)
acc = acc_geo[winner_idx]
summary = summary_geo[winner_idx]
# Copy and Mutation
for j in range(len(compet_idx)):
if (j != winner_idx):
geopath_set[compet_idx[j]] = np.copy(
geopath_set[compet_idx[winner_idx]])
geopath_set[compet_idx[j]] = pathnet.mutation(
geopath_set[compet_idx[j]], FLAGS.L, FLAGS.M, FLAGS.N)
train_writer.add_summary(summary, i)
print('Training Accuracy at step %s: %s' % (i, acc))
if i == FLAGS.max_steps - 1:
acc_task2 = acc
task2_optimal_path = geopath_set[compet_idx[winner_idx]]
print('Task2 Optimal Path is as followed.')
print(task2_optimal_path)
# close data reading queue
coord.request_stop()
coord.join(threads)
overlap = 0
for i in range(len(task1_optimal_path)):
for j in range(len(task1_optimal_path[0])):
if (task1_optimal_path[i, j] == task2_optimal_path[i, j]) & (
task1_optimal_path[i, j] == 1.0):
overlap += 1
print("ImageNet,TASK1:" + str(acc_task1) + ",TASK2:" + str(acc_task2) +
", Overlap:" + str(overlap))
train_writer.close()
test_writer.close()