def validate(self, sess):
if self._acc_ops is None:
self._acc_ops = self._init_acc_ops()
if self._acc_orient_ops is None:
self._acc_orient_ops = self._init_acc_orient_ops()
sess.run(self._acc_ops.reset)
sess.run(self._acc_orient_ops.reset)
num_batches_val = int(self.data.validation.num_examples/self.batch_size_val)
if self.tf_record_prefix is not None:
# tmp = sum(1 for _ in tf.python_io.tf_record_iterator(self.data.validation.path))
# assert(num_batches_val == tmp)
img, label, label_orient = MNIST.read_and_decode_ops(\
self.data.validation.path,
one_hot=self.data.validation.one_hot,
num_orientations=len(self.data.validation.orientations))
batch_xs_op, batch_ys_op, batch_os_op = tf.train.batch([img, label, label_orient],
batch_size=self.batch_size_val,
capacity=2000,
num_threads=8
)
coord = tf.train.Coordinator()
threads = tf.train.start_queue_runners(sess=sess, coord=coord)
for _ in xrange(num_batches_val):
if self.tf_record_prefix is None:
batch_xs, batch_ys = self.data.validation.next_batch(self.batch_size_val,
shuffle=False)
else:
batch_xs, batch_ys, batch_os = sess.run([batch_xs_op, batch_ys_op, batch_os_op])
batch_xs_in = batch_xs
if self.do_augment_rot:
augment_op, batch_os2 = self.rotation_ops_multiset_val(3)
#TODO remove hardcoded init
rots = rotation_rad(-60,60,15)
num_orients = len(rots)
orients_dense = np.array([rots.index(o) for o in batch_os2])
batch_os_one_hot = dense_to_one_hot(orients_dense, num_orients)
batch_xs_in = sess.run(augment_op, feed_dict={self.x : batch_xs})
else:
#TODO remove hardcoded init
rots = rotation_rad(-60, 60, 15)
batch_os_one_hot = dense_to_one_hot(np.zeros((self.batch_size_val,), dtype=int)+(len(rots)/2), len(rots))
_, _, _, _ = sess.run(\
[self._acc_ops.metric, self._acc_ops.update,
self._acc_orient_ops.metric, self._acc_orient_ops.update,
# tf.argmax(self.model.p,1), tf.argmax(self.y_,1),
],
feed_dict={self.x: batch_xs_in,
self.y_: batch_ys,
self.orient_ : batch_os_one_hot,
}
)
if self.tf_record_prefix is not None:
coord.request_stop()
coord.join(threads)
def read_data_sets(validation_size=5000, one_hot=True):
cifar_filename = "datasets/" + "cifar-10-python.tar.gz"
try:
os.makedirs("datasets")
except OSError:
pass
if not os.path.isfile(cifar_dir + batches[0]):
# Download data
print("Downloading ckplus dataset")
urllib.urlretrieve(
"http://www.cs.toronto.edu/~kriz/cifar-10-python.tar.gz",
cifar_filename)
tar = tarfile.open(cifar_filename)
tar.extractall(path="datasets")
tar.close()
os.remove(cifar_filename)
# Process batches
all_batch_images = []
all_batch_labels = []
for batch_name in batches:
batch = np.load(cifar_dir + batch_name)
batch_images = batch['data']
all_batch_images.append(batch_images)
batch_labels = batch['labels']
all_batch_labels.extend(batch_labels)
all_batch_images = np.vstack(all_batch_images).reshape(-1, 3, 32, 32)
all_batch_images = all_batch_images.transpose([0, 2, 3, 1])
all_batch_labels = np.array(all_batch_labels)
train_images, validation_images, train_labels, validation_labels = train_test_split(
all_batch_images,
all_batch_labels,
test_size=validation_size,
random_state=0)
test_batch = np.load(cifar_dir + "test_batch")
test_images = test_batch['data'].reshape(-1, 3, 32, 32)
test_images = test_images.transpose([0, 2, 3, 1])
test_labels = np.array(test_batch['labels'])
if one_hot:
train_labels = dense_to_one_hot(train_labels, NUM_CLASSES)
validation_labels = dense_to_one_hot(validation_labels, NUM_CLASSES)
test_labels = dense_to_one_hot(test_labels, NUM_CLASSES)
train = DataSet(train_images, train_labels, reshape=False)
validation = DataSet(validation_images, validation_labels, reshape=False)
test = DataSet(test_images, test_labels, reshape=False)
return Datasets(train=train, validation=validation, test=test)
def __init__(self, dirname, one_hot=True):
self._epochs_completed = 0
self._index_in_epoch = 0
self._one_hot = one_hot
self._num_classes = 10
self.maybe_download_and_extract(dirname)
dirname = os.path.join(dirname, 'cifar-10-batches-py/')
images = []
labels = []
for i in range(1, 6):
fpath = os.path.join(dirname, 'data_batch_' + str(i))
image, label = self.load_batch(fpath)
if i == 1:
images = np.array(image)
labels = np.array(label)
else:
images = np.concatenate([images, image], axis=0)
labels = np.concatenate([labels, label], axis=0)
images = np.dstack(
(images[:, :1024], images[:, 1024:2048], images[:, 2048:]))
images = np.reshape(images, [-1, 32, 32, 3])
if self._one_hot:
labels = dense_to_one_hot(labels, self._num_classes)
print 'Cifar images size:', images.shape
print 'Cifar labels size:', labels.shape
self._images = images / 255.0 - 0.5
self._labels = labels
self._num_examples = images.shape[0]
def validate(self, sess):
if self._acc_ops is None:
self._acc_ops = self._init_acc_ops()
if self._acc_orient_ops is None:
self._acc_orient_ops = self._init_acc_orient_ops()
sess.run(self._acc_ops.reset)
sess.run(self._acc_orient_ops.reset)
num_batches_val = int(self.data.validation.num_examples /
self.batch_size_val)
for _ in xrange(num_batches_val):
if self.tf_record_prefix is None:
batch_xs, batch_ys = self.data.validation.next_batch(
self.batch_size_val, shuffle=False)
else:
batch_xs, batch_ys, batch_os = sess.run(
[batch_xs_op, batch_ys_op, batch_os_op])
batch_xs_in = batch_xs
if self.do_augment_rot:
augment_op, batch_os2 = self.rotation_ops_multiset_val(3)
rots = rotation_rad(-60, 60, 15)
num_orients = len(rots)
orients_dense = np.array([rots.index(o) for o in batch_os2])
batch_os_one_hot = dense_to_one_hot(orients_dense, num_orients)
batch_xs_in = sess.run(augment_op,
feed_dict={self.x: batch_xs})
_, _, _, _ = sess.run(\
[self._acc_ops.metric, self._acc_ops.update,
self._acc_orient_ops.metric, self._acc_orient_ops.update,
# tf.argmax(self.model.p,1), tf.argmax(self.y_,1),
],
feed_dict={self.x: batch_xs_in,
self.y_: batch_ys,
self.orient_ : batch_os_one_hot,
}
)
def cifar_datasets(dirname, one_hot=True,
dtype=dtypes.float32,
reshape=False,
seed=None):
maybe_download_and_extract(dirname)
dirname = os.path.join(dirname, 'cifar-10-batches-py/')
train_images = []
train_labels = []
for i in range(1, 6):
fpath = os.path.join(dirname, 'data_batch_' + str(i))
image, label = load_batch(fpath)
if i == 1:
train_images = np.array(image)
train_labels = np.array(label)
else:
train_images = np.concatenate([train_images, image], axis=0)
train_labels = np.concatenate([train_labels, label], axis=0)
train_images = np.dstack((train_images[:, :1024], train_images[:, 1024:2048], train_images[:, 2048:]))
train_images = np.reshape(train_images, [-1, 32, 32, 3])
if one_hot:
train_labels = dense_to_one_hot(train_labels, 10)
print 'Cifar train_images size:', train_images.shape
print 'Cifar train_labels size:', train_labels.shape
train_images = train_images / 255.0 - 0.5
fpath = os.path.join(dirname, "test_batch")
image, label = load_batch(fpath)
test_images = np.array(image)
test_labels = np.array(label)
test_images = np.dstack((test_images[:, :1024], test_images[:, 1024:2048], test_images[:, 2048:]))
test_images = np.reshape(test_images, [-1, 32, 32, 3])
if one_hot:
test_labels = dense_to_one_hot(test_labels, 10)
print "Cifar test_images size:", test_images.shape
print "Cifar test_lables size:", test_labels.shape
test_images = test_images / 255.0 - 0.5
options = dict(dtype=dtype, reshape=reshape, seed=seed)
train = DataSet(train_images, train_labels, options)
test = DataSet(test_images, test_labels, options)
return Datasets(train=train, test=test)
def read_datafile(data_file, one_hot=False, num_classes=10):
mat = np.loadtxt(data_file, np.float32)
images = mat[:, :-1]
labels = mat[:, -1]
labels = labels.astype(np.uint8)
num_images = images.shape[0]
rows = 28
cols = 28
assert rows * cols == images.shape[1],\
"loaded images are not 28*28"
images = images.reshape(num_images, rows, cols, 1)
if one_hot:
labels = mnist.dense_to_one_hot(labels, num_classes)
return images, labels
def loadLabelSet(filename):
print("load label set", filename)
binfile = open(filename, 'rb')
buffers = binfile.read()
head = struct.unpack_from('>II', buffers, 0)
print("head,", head)
offset = struct.calcsize('>II')
print("offset,", offset)
labels = np.frombuffer(buffers, dtype=np.uint8, offset=offset)
binfile.close()
labels = dense_to_one_hot(labels, 10)
print("load label finished")
return labels
def read_user_data(path, ratio):
"""
:param path: 数据所在路径
:param ratio: 训练集和测试集比例
:return:
"""
images = []
labels = []
lablejson = {}
dtype = dtypes.float32
reshape = True
seed = None
with open(os.path.join(path, 'tag.json')) as file:
lablejson = json.load(file)
path = 'data'
for (root, dirs, files) in os.walk(path):
for filename in files:
if filename.endswith('.jpg'):
name = os.path.join(root, filename)
img = Image.open(name)
img = numpy.array(img)
img = img.reshape([img.shape[0], img.shape[1], 1])
labels.append(int(lablejson[filename]))
images.append(img)
images = numpy.array(images)
labels = dense_to_one_hot(numpy.array(labels), 10)
number = labels.shape[0]
middle = int(number * ratio)
train_image = images[:middle]
train_label = labels[:middle]
test_image = images[middle:]
test_label = labels[middle:]
options = dict(dtype=dtype, reshape=reshape, seed=seed)
train = DataSet(train_image, train_label, **options)
test = DataSet(test_image, test_label, **options)
return base.Datasets(train=train, validation=None, test=test)
def initDataSetsClasses():
global dataSetTrain
global dataSetTest
print(FLAGS.train_classes, FLAGS.test_classes)
# Variable to read out the labels & data of the DataSet Object.
mnistData = read_data_sets('./', one_hot=True)
# MNIST labels & data for training.
mnistLabelsTrain = mnistData.train.labels
mnistDataTrain = mnistData.train.images
# MNIST labels & data for testing.
mnistLabelsTest = mnistData.test.labels
mnistDataTest = mnistData.test.images
print("LABELS", mnistLabelsTest.shape, mnistLabelsTrain.shape)
if FLAGS.permuteTrain != -1:
# training dataset
np.random.seed(FLAGS.permuteTrain)
permTr = np.random.permutation(mnistDataTrain.shape[1])
mnistDataTrainPerm = mnistDataTrain[:, permTr]
mnistDataTrain = mnistDataTrainPerm
# dataSetTrain = DataSet(255. * dataSetTrainPerm,
# mnistLabelsTrain, reshape=False)
if FLAGS.permuteTest != -1:
# testing dataset
np.random.seed(FLAGS.permuteTest)
permTs = np.random.permutation(mnistDataTest.shape[1])
mnistDataTestPerm = mnistDataTest[:, permTs]
# dataSetTest = DataSet(255. * dataSetTestPerm,
# mnistLabelsTest, reshape=False)
mnistDataTest = mnistDataTestPerm
if True:
# args = parser.parse_args()
print(FLAGS.train_classes, FLAGS.test_classes)
if FLAGS.train_classes[0:]:
labels_to_train = [int(i) for i in FLAGS.train_classes[0:]]
if FLAGS.test_classes[0:]:
labels_to_test = [int(i) for i in FLAGS.test_classes[0:]]
# Filtered labels & data for training and testing.
labels_train_classes = np.array([
mnistLabelsTrain[i].argmax()
for i in xrange(0, mnistLabelsTrain.shape[0])
if mnistLabelsTrain[i].argmax() in labels_to_train
],
dtype=np.uint8)
data_train_classes = np.array([
mnistDataTrain[i, :] for i in xrange(0, mnistLabelsTrain.shape[0])
if mnistLabelsTrain[i].argmax() in labels_to_train
],
dtype=np.float32)
labels_test_classes = np.array([
mnistLabelsTest[i].argmax()
for i in xrange(0, mnistLabelsTest.shape[0])
if mnistLabelsTest[i].argmax() in labels_to_test
],
dtype=np.uint8)
data_test_classes = np.array([
mnistDataTest[i, :] for i in xrange(0, mnistDataTest.shape[0])
if mnistLabelsTest[i].argmax() in labels_to_test
],
dtype=np.float32)
labelsTrainOnehot = dense_to_one_hot(labels_train_classes, 10)
labelsTestOnehot = dense_to_one_hot(labels_test_classes, 10)
dataSetTrain = DataSet(255. * data_train_classes,
labelsTrainOnehot,
reshape=False)
dataSetTest = DataSet(255. * data_test_classes,
labelsTestOnehot,
reshape=False)
def learn(self, sess):
if self.y_ is None:
self.logger.info("Define placeholder for ground truth. Dims: %d" % self.model.n_nodes[-1])
self.y_ = tf.placeholder("float", [None, self.model.n_nodes[-1]])
suffix = ''
if self.do_finetune:
self.logger.info("Finetuning!")
suffix += 'finetune'
dir_train = self.dirpath('train', suffix=suffix)
dir_val = self.dirpath('validation', suffix=suffix)
summary_writer_train = tf.summary.FileWriter(dir_train,
sess.graph)
summary_writer_val = tf.summary.FileWriter(dir_val)
cost, loss = self._cost_loss(self.dirname('train', suffix=suffix))
vars_new = None
if not self.do_finetune:
vars_new = self.model.vars_new() # limit optimizaer vars if not finetuning
optimizer = setup_optimizer(cost, self.learning_rate, var_list=vars_new)
if not self.do_finetune:
vars_new = self.model.vars_new()
self.init_vars(sess, vars_new)
summaries_merged_train = self._merge_summaries_scalars([cost, loss])
if self._acc_ops is None:
self._acc_ops = self._init_acc_ops()
sess.run(self._acc_ops.reset)
if self._acc_orient_ops is None:
self._acc_orient_ops = self._init_acc_orient_ops()
sess.run(self._acc_orient_ops.reset)
summaries_merged_val = self._merge_summaries_scalars([self._acc_ops.metric,
self._acc_orient_ops.metric])
#
# in_ = self.model.x
# xx = tf.placeholder("float", [None, 784])
# augment_op = augment_rotation(xx,
# -90, 90, 15,
# self.batch_size_train)
# self.model.x = augment_op
if self.tf_record_prefix is not None:
img, label, label_orient = MNIST.read_and_decode_ops(\
self.data.train.path,
one_hot=self.data.train.one_hot,
num_orientations=len(self.data.train.orientations))
batch_xs_op, batch_ys_op, batch_os_op = tf.train.shuffle_batch([img, label, label_orient],
batch_size=self.batch_size_train,
capacity=2000,
min_after_dequeue=1000,
num_threads=8
)
coord = tf.train.Coordinator()
threads = tf.train.start_queue_runners(sess=sess, coord=coord)
if self.do_augment_rot:
#TODO remove hardcoded init
rots = rotation_rad(-60, 60, 15)
self._init_saver()
itr_exp = 0
result = collections.namedtuple('Result', ['max', 'last', 'name', 'history', 'epoch_last'])
result_orient = collections.namedtuple('Result', ['max', 'last', 'name', 'history', 'epoch_last'])
result.name = self._acc_ops.metric.name
result.max = 0
result.history = collections.deque(maxlen=3)
result_orient.name = self._acc_orient_ops.metric.name
result_orient.max = 0
result_orient.history = collections.deque(maxlen=3)
for epoch in xrange(self.training_epochs):
self.logger.info("Start %s epoch %d, step %d" % (suffix, epoch, itr_exp))
# Loop over all batches
for itr_epoch in xrange(self.num_batches_train):
if self.tf_record_prefix is None:
batch_xs, batch_ys = self.data.train.next_batch(self.batch_size_train)
else:
batch_xs, batch_ys, batch_os = sess.run([batch_xs_op, batch_ys_op, batch_os_op])
# f = sess.run([augment_op], feed_dict={xx:batch_xs})
batch_xs_in = batch_xs
if self.do_augment_rot:
augment_op, batch_os2 = self.rotation_ops_multiset_train(3)
batch_xs_in = sess.run(augment_op, feed_dict={self.x : batch_xs})
orients_dense = np.array([rots.index(o) for o in batch_os2])
batch_os_one_hot = dense_to_one_hot(orients_dense, len(rots))
else:
#TODO remove hardcoded init
rots = rotation_rad(-60, 60, 15)
batch_os_one_hot = dense_to_one_hot(np.zeros((self.batch_size_train,), dtype=int)+(len(rots)/2), len(rots))
_, _, sess_summary = sess.run([optimizer,
cost,
summaries_merged_train],
feed_dict={self.x : batch_xs_in,
self.y_: batch_ys,
self.orient_ : batch_os_one_hot}
)
if self.is_time_to_track_train(itr_exp):
summary_writer_train.add_summary(sess_summary, itr_exp)
# self.logger.debug("training batch loss after step %d: %f" % (itr_exp, loss_batch))
itr_exp += 1
self.validate(sess)
# run metric op one more time, data in feed dict is dummy data, does not influence metric
acc, acc_orient, sess_summary = sess.run([
self._acc_ops.metric,
self._acc_orient_ops.metric,
summaries_merged_val],
feed_dict={self.x : batch_xs,
self.y_ : batch_ys,
self.orient_ : batch_os_one_hot}
)
if self.is_time_to_track_val(itr_exp):
summary_writer_val.add_summary(sess_summary, itr_exp)
self.logger.debug("validation accuracy after %s step %d: %f" % (suffix, itr_exp, acc))
self.logger.debug("validation orientation accuracy after %s step %d: %f" % (suffix, itr_exp, acc_orient))
fpath_save = os.path.join(dir_train, self._get_save_name())
self.logger.debug("Save model at %s step %d to '%s'" % (suffix, itr_exp, fpath_save))
self.saver.save(sess, fpath_save, global_step=itr_exp)
result.last = acc
result.epoch_last = epoch
result.max = max(result.max, result.last)
result.history.append(result.last)
result_orient.last = acc_orient
result_orient.max = max(result_orient.max, result_orient.last)
result_orient.history.append(result_orient.last)
result_orient.epoch_last = epoch
if self.do_task_recognition:
if len(result.history) == result.history.maxlen and np.absolute(np.mean(result.history)-result.last) < 1e-5:
self.logger.debug("Validation accuracy not changing anymore. Stop iterating.")
break
elif self.do_task_orientation:
if len(result_orient.history) == result_orient.history.maxlen and np.absolute(np.mean(result_orient.history)-result_orient.last) < 1e-5:
self.logger.debug("Validation orientation accuracy not changing anymore. Stop iterating.")
break
if self.tf_record_prefix is not None:
coord.request_stop()
coord.join(threads)
self.logger.info("Classification %s Optimization Finished!" % suffix)
return result, result_orient
def initDataSetsClasses(FLAGS):
"""
global dataSetTrain
global dataSetTest
global dataSetTest2
global dataSetTest3
"""
print("FLAGS", FLAGS.train_classes, FLAGS.test_classes)
# Variable to read out the labels & data of the DataSet Object.
mnistData = read_data_sets('./', one_hot=True)
# MNIST labels & data for training.
mnistLabelsTrain = mnistData.train.labels
mnistDataTrain = mnistData.train.images
# MNIST labels & data for testing.
mnistLabelsTest = mnistData.test.labels
mnistDataTest = mnistData.test.images
print("LABELS", mnistLabelsTest.shape, mnistLabelsTrain.shape)
## starting point:
# TRAINSET: mnistDataTrain, mnistLabelsTrain
# TESTSET: mnistDataTest, mnistLabelsTest
# make a copy
mnistDataTest2 = mnistDataTest + 0.0
mnistLabelsTest2 = mnistLabelsTest + 0.0
# make a copy
mnistDataTest3 = mnistDataTest + 0.0
mnistLabelsTest3 = mnistLabelsTest + 0.0
if FLAGS.permuteTrain != -1:
# training dataset
np.random.seed(FLAGS.permuteTrain)
permTr = np.random.permutation(mnistDataTrain.shape[1])
mnistDataTrainPerm = mnistDataTrain[:, permTr]
if FLAGS.mergeTrainWithPermutation == True:
mnistDataTrain = np.concatenate(
(mnistDataTrain, mnistDataTrainPerm), axis=0)
else:
mnistDataTrain = mnistDataTrainPerm
# dataSetTrain = DataSet(255. * dataSetTrainPerm,
# mnistLabelsTrain, reshape=False)
if FLAGS.permuteTest != -1:
print("Permute")
# testing dataset
np.random.seed(FLAGS.permuteTest)
permTs = np.random.permutation(mnistDataTest.shape[1])
mnistDataTestPerm = mnistDataTest[:, permTs]
# dataSetTest = DataSet(255. * dataSetTestPerm,
# mnistLabelsTest, reshape=False)
mnistDataTest = mnistDataTestPerm
if FLAGS.permuteTest2 != -1:
# testing dataset
print("Permute2")
np.random.seed(FLAGS.permuteTest2)
permTs = np.random.permutation(mnistDataTest.shape[1])
mnistDataTestPerm = mnistDataTest[:, permTs]
mnistDataTest2 = mnistDataTestPerm
if FLAGS.permuteTest3 != -1:
print("Permute3")
# testing dataset
np.random.seed(FLAGS.permuteTest3)
permTs = np.random.permutation(mnistDataTest.shape[1])
mnistDataTestPerm = mnistDataTest[:, permTs]
mnistDataTest3 = mnistDataTestPerm
print "SHAPE", mnistDataTrain.shape
if True:
# args = parser.parse_args()
if FLAGS.train_classes[0:]:
labels_to_train = [int(i) for i in FLAGS.train_classes[0:]]
if FLAGS.test_classes[0:]:
labels_to_test = [int(i) for i in FLAGS.test_classes[0:]]
if FLAGS.test2_classes != None:
labels_to_test2 = [int(i) for i in FLAGS.test2_classes[0:]]
else:
labels_to_test2 = []
if FLAGS.test3_classes != None:
labels_to_test3 = [int(i) for i in FLAGS.test3_classes[0:]]
else:
labels_to_test3 = []
# Filtered labels & data for training and testing.
labels_train_classes = np.array([
mnistLabelsTrain[i].argmax()
for i in range(0, mnistLabelsTrain.shape[0])
if mnistLabelsTrain[i].argmax() in labels_to_train
],
dtype=np.uint8)
data_train_classes = np.array([
mnistDataTrain[i, :] for i in range(0, mnistLabelsTrain.shape[0])
if mnistLabelsTrain[i].argmax() in labels_to_train
],
dtype=np.float32)
labels_test_classes = np.array([
mnistLabelsTest[i].argmax()
for i in range(0, mnistLabelsTest.shape[0])
if mnistLabelsTest[i].argmax() in labels_to_test
],
dtype=np.uint8)
labels_test2_classes = np.array([
mnistLabelsTest[i].argmax()
for i in range(0, mnistLabelsTest.shape[0])
if mnistLabelsTest[i].argmax() in labels_to_test2
],
dtype=np.uint8)
if FLAGS.mergeTest12 == False:
labels_test3_classes = np.array([
mnistLabelsTest[i].argmax()
for i in range(0, mnistLabelsTest.shape[0])
if mnistLabelsTest[i].argmax() in labels_to_test3
],
dtype=np.uint8)
data_test_classes = np.array([
mnistDataTest[i, :] for i in range(0, mnistDataTest.shape[0])
if mnistLabelsTest[i].argmax() in labels_to_test
],
dtype=np.float32)
data_test2_classes = np.array([
mnistDataTest[i, :] for i in range(0, mnistDataTest.shape[0])
if mnistLabelsTest[i].argmax() in labels_to_test2
],
dtype=np.float32)
if FLAGS.mergeTest12 == False:
data_test3_classes = np.array([
mnistDataTest[i, :] for i in range(0, mnistDataTest.shape[0])
if mnistLabelsTest[i].argmax() in labels_to_test3
],
dtype=np.float32)
if FLAGS.mergeTest12 == True:
data_test3_classes = np.concatenate(
(data_test_classes, data_test2_classes), axis=0)
labels_test3_classes = np.concatenate(
(labels_test_classes, labels_test2_classes), axis=0)
print "CONCATMERGE", data_test_classes.shape, data_test2_classes.shape, data_test3_classes.shape
labelsTrainOnehot = dense_to_one_hot(labels_train_classes, 10)
labelsTestOnehot = dense_to_one_hot(labels_test_classes, 10)
labelsTest2Onehot = dense_to_one_hot(labels_test2_classes, 10)
labelsTest3Onehot = dense_to_one_hot(labels_test3_classes, 10)
dataSetTrain = DataSet(255. * data_train_classes,
labelsTrainOnehot,
reshape=False)
dataSetTest = DataSet(255. * data_test_classes,
labelsTestOnehot,
reshape=False)
dataSetTest2 = DataSet(255. * data_test2_classes,
labelsTest2Onehot,
reshape=False)
dataSetTest3 = DataSet(255. * data_test3_classes,
labelsTest3Onehot,
reshape=False)
#print ("EQUAL?",np.mean((data_test3_classes==data_test_classes)).astype("float32")) ;
print(data_test3_classes.shape, data_test2_classes.shape)
print(FLAGS.test_classes, FLAGS.test2_classes, FLAGS.test3_classes)
print(labels_to_test3, labels_to_test2)
return dataSetTrain, dataSetTest, dataSetTest2, dataSetTest3
def read_data_sets(split=True,
num_train_folders=90,
num_test_folders=24,
one_hot=True,
frames=3):
all_folders = os.listdir(emotions_path)
random.Random(0).shuffle(all_folders)
if split:
train_folders = all_folders[:num_train_folders]
test_folders = all_folders[num_train_folders:num_train_folders +
num_test_folders]
validation_folders = all_folders[num_train_folders + num_test_folders:]
train_df = pd.DataFrame(read_from_folders(train_folders, frames))
validation_df = pd.DataFrame(
read_from_folders(validation_folders, frames))
test_df = pd.DataFrame(read_from_folders(test_folders, frames))
print("{} CK+ TRAIN datapoints loaded".format(len(train_df)))
print("{} CK+ VALIDATION datapoints loaded".format(len(validation_df)))
print("{} CK+ TEST datapoints loaded".format(len(test_df)))
else:
train_df = pd.DataFrame(read_from_folders(all_folders, frames))
validation_df = train_df.copy()
test_df = train_df.copy()
print("{} CK+ TRAIN datapoints loaded".format(len(train_df)))
if one_hot:
train_labels = dense_to_one_hot(train_df['emotion'].values,
NUM_CLASSES)
validation_labels = dense_to_one_hot(validation_df['emotion'].values,
NUM_CLASSES)
test_labels = dense_to_one_hot(test_df['emotion'].values, NUM_CLASSES)
else:
train_labels = train_df['emotion']
validation_labels = validation_df['emotion']
test_labels = test_df['emotion']
del train_df['emotion']
del validation_df['emotion']
del test_df['emotion']
train_idx = np.arange(len(train_labels))
validation_idx = np.arange(len(validation_labels))
test_idx = np.arange(len(test_labels))
np.random.shuffle(train_idx)
np.random.shuffle(validation_idx)
np.random.shuffle(test_idx)
train_images = train_df.as_matrix()
validation_images = validation_df.as_matrix()
test_images = test_df.as_matrix()
train = DataSet(train_images[train_idx, :],
train_labels[train_idx],
reshape=False)
validation = DataSet(validation_images[validation_idx, :],
validation_labels[validation_idx],
reshape=False)
test = DataSet(test_images[test_idx, :],
test_labels[test_idx],
reshape=False)
return Datasets(train=train, validation=validation, test=test)
with open(training_file, mode='rb') as f:
train = pickle.load(f)
with open(testing_file, mode='rb') as f:
test = pickle.load(f)
X_train, y_train = train['features'], train['labels']
X_test, y_test = test['features'], test['labels']
# number of training examples
n_train = len(X_train)
# number of testing examples
n_test = len(X_test)
y_train = mnist.dense_to_one_hot(y_train, nb_classes)
y_test = mnist.dense_to_one_hot(y_test, nb_classes)
print("done loading")
# TODO: Split data into training and validation sets.
# TODO: Define placeholders and resize operation.
x = tf.placeholder(tf.float32, (None, 32, 32, 3))
# TODO: Resize the images so they can be fed into AlexNet.
# HINT: Use `tf.image.resize_images` to resize the images
resized = tf.image.resize_images(x, (227, 227))
# TODO: pass placeholder as first argument to `AlexNet`.
fc7 = AlexNet(resized, feature_extract=True)
# NOTE: `tf.stop_gradient` prevents the gradient from flowing backwards
def split_data_set(wanted_digits, fraction_train, fraction_test):
"""
Splits MNIST dataset into two parts: one containing only digits in wanted_digits
and second containing all remaining digits. Labels in dataset with wanted_digits
are mapped to range 0:num_labels, where num_labels - number of wanted digits.
Each of two datasets in turn is split into train, validation and test with number
of samples specified by fraction_train and fraction_test
Output: (label_map, remapped, remaining)
where label_map - dictionary containing mapping from original labels to new ones;
remapped - dataset of type base.Datasets with wanted digits and remapped labels;
remaining - dataset of type base.Datasets with remaining digits and original labels.
"""
# read data set
mnist = input_data.read_data_sets("MNIST_data/")
# concatenate train, validation and test data
concatenated_images = np.concatenate((mnist.test.images, mnist.validation.images, mnist.train.images),axis=0)
concatenated_labels = np.concatenate((mnist.test.labels, mnist.validation.labels, mnist.train.labels),axis=0)
# estimate class frequencies
unique, counts = np.unique(concatenated_labels, return_counts=True)
digit_frequency = dict(zip(unique, counts))
print(digit_frequency)
# rows to extract from dataset
rows_to_extract = np.logical_or.reduce([concatenated_labels == x for x in wanted_digits])
# extract samples corresponding to desired digits
extracted_labels = concatenated_labels[rows_to_extract]
extracted_images = concatenated_images[rows_to_extract]
# remaining samples
remaining_labels = concatenated_labels[np.logical_not(rows_to_extract)]
remaining_images = concatenated_images[np.logical_not(rows_to_extract)]
num_train_extracted = int(extracted_labels.shape[0] * fraction_train)
num_test_extracted = int(extracted_labels.shape[0] * fraction_test)
num_train_remaining = int(remaining_labels.shape[0] * fraction_train)
num_test_remaining = int(remaining_labels.shape[0] * fraction_test)
num_train_all = int(concatenated_labels.shape[0] * fraction_train)
num_test_all = int(concatenated_labels.shape[0] * fraction_test)
# map desired labels to range (0:num_labels)
extracted_remapped_labels = np.empty(shape=extracted_labels.shape, dtype=np.int32)
remaining_remapped_labels = np.empty(shape=remaining_labels.shape, dtype=np.int32)
extracted_label_map = {} # dictionary containing label map
remaining_label_map = {} #
# create map distionary for extracted digits
for i in range(len(wanted_digits)):
extracted_label_map[wanted_digits[i]] = i
# create map distionary for remaining digits
counter = 0
for i in range(num_classes):
if i not in wanted_digits:
remaining_label_map[i] = counter
counter += 1
print("extracted_label map:" ,extracted_label_map)
for i in range(extracted_labels.shape[0]):
extracted_remapped_labels[i] = extracted_label_map[extracted_labels[i]]
print("extracted_remapped_labels:" ,extracted_remapped_labels)
print("remaining_label map:" ,remaining_label_map)
for i in range(remaining_labels.shape[0]):
remaining_remapped_labels[i] = remaining_label_map[remaining_labels[i]]
print("remaining_remapped_labels:" ,remaining_remapped_labels)
num_extracted_digits = len(wanted_digits) # number of classes in dataset with wanted_digits only
# convert labels to one hot
extracted_labels_one_hot = dense_to_one_hot(extracted_labels, num_classes)
extracted_remapped_labels_one_hot = dense_to_one_hot(extracted_remapped_labels, num_extracted_digits)
remaining_labels_one_hot = dense_to_one_hot(remaining_labels, num_classes)
remaining_remapped_labels_one_hot = dense_to_one_hot(remaining_remapped_labels, num_classes - num_extracted_digits)
concatenated_labels_one_hot = dense_to_one_hot(concatenated_labels, num_classes)
print("extracted labels one hot: ",extracted_labels_one_hot)
print("remaining labels one hot: ",remaining_labels_one_hot)
print("extracted remapped labels one hot: ",extracted_remapped_labels_one_hot)
print("remaining remapped labels one hot: ",remaining_remapped_labels_one_hot)
# split datasets
extracted_train = DataSet(extracted_images[:num_train_extracted] * MAX_INTENSITY, extracted_labels_one_hot[:num_train_extracted],
dtype=dtypes.float32, reshape=False, one_hot=True)
extracted_test = DataSet(extracted_images[num_train_extracted:(num_train_extracted + num_test_extracted)] * MAX_INTENSITY,
extracted_labels_one_hot[num_train_extracted:(num_train_extracted + num_test_extracted)],
dtype=dtypes.float32, reshape=False, one_hot=True)
extracted_validation = DataSet(extracted_images[(num_train_extracted + num_test_extracted):] * MAX_INTENSITY,
extracted_labels_one_hot[(num_train_extracted + num_test_extracted):],
dtype=dtypes.float32, reshape=False, one_hot=True)
extracted_remapped_train = DataSet(extracted_images[:num_train_extracted] * MAX_INTENSITY, extracted_remapped_labels_one_hot[:num_train_extracted],
dtype=dtypes.float32, reshape=False, one_hot=True)
extracted_remapped_test = DataSet(extracted_images[num_train_extracted:(num_train_extracted + num_test_extracted)] * MAX_INTENSITY,
extracted_remapped_labels_one_hot[num_train_extracted:(num_train_extracted + num_test_extracted)],
dtype=dtypes.float32, reshape=False, one_hot=True)
extracted_remapped_validation = DataSet(extracted_images[(num_train_extracted + num_test_extracted):] * MAX_INTENSITY,
extracted_remapped_labels_one_hot[(num_train_extracted + num_test_extracted):],
dtype=dtypes.float32, reshape=False, one_hot=True)
remaining_train = DataSet(remaining_images[:num_train_remaining] * MAX_INTENSITY, remaining_labels_one_hot[:num_train_remaining],
dtype=dtypes.float32, reshape=False, one_hot=True)
remaining_test = DataSet(remaining_images[num_train_remaining:(num_train_remaining + num_test_remaining)] * MAX_INTENSITY,
remaining_labels_one_hot[num_train_remaining:(num_train_remaining + num_test_remaining)],
dtype=dtypes.float32, reshape=False, one_hot=True)
remaining_validation = DataSet(remaining_images[(num_train_remaining + num_test_remaining):] * MAX_INTENSITY,
remaining_labels_one_hot[(num_train_remaining + num_test_remaining):],
dtype=dtypes.float32, reshape=False, one_hot=True)
remaining_remapped_train = DataSet(remaining_images[:num_train_remaining] * MAX_INTENSITY, remaining_remapped_labels_one_hot[:num_train_remaining],
dtype=dtypes.float32, reshape=False, one_hot=True)
remaining_remapped_test = DataSet(remaining_images[num_train_remaining:(num_train_remaining + num_test_remaining)] * MAX_INTENSITY,
remaining_remapped_labels_one_hot[num_train_remaining:(num_train_remaining + num_test_remaining)],
dtype=dtypes.float32, reshape=False, one_hot=True)
remaining_remapped_validation = DataSet(remaining_images[(num_train_remaining + num_test_remaining):] * MAX_INTENSITY,
remaining_remapped_labels_one_hot[(num_train_remaining + num_test_remaining):],
dtype=dtypes.float32, reshape=False, one_hot=True)
# data sets comprised of all digits
all_train = DataSet(concatenated_images[:num_train_all] * MAX_INTENSITY, concatenated_labels_one_hot[:num_train_all],
dtype=dtypes.float32, reshape=False, one_hot=True)
all_test = DataSet(concatenated_images[num_train_all:(num_train_all + num_test_all)] * MAX_INTENSITY, concatenated_labels_one_hot[num_train_all:(num_train_all + num_test_all)],
dtype=dtypes.float32, reshape=False, one_hot=True)
all_validation = DataSet(concatenated_images[(num_train_all + num_test_all):] * MAX_INTENSITY, concatenated_labels_one_hot[(num_train_all + num_test_all):],
dtype=dtypes.float32, reshape=False, one_hot=True)
# combine data sets into single base.Datasets class
extracted = base.Datasets(train=extracted_train, validation=extracted_validation, test=extracted_test)
extracted_remapped = base.Datasets(train=extracted_remapped_train, validation=extracted_remapped_validation, test=extracted_remapped_test)
remaining = base.Datasets(train=remaining_train, validation=remaining_validation, test=remaining_test)
remaining_remapped = base.Datasets(train=remaining_remapped_train, validation=remaining_remapped_validation, test=remaining_remapped_test)
all_digits = base.Datasets(train=all_train, validation=all_validation, test=all_test)
return (extracted_label_map, remaining_label_map, extracted, extracted_remapped, \
remaining, remaining_remapped, all_digits)