# Pytorch
import torch
+import torchvision
from torch import optim
+from torch import multiprocessing
from torch import FloatTensor as Tensor
from torch.autograd import Variable
from torch import nn
from torch.nn import functional as fn
+
from torchvision import datasets, transforms, utils
# SVRT
parser.add_argument('--log_file',
type = str, default = 'default.log')
+parser.add_argument('--nb_exemplar_vignettes',
+ type = int, default = 32)
+
parser.add_argument('--compress_vignettes',
type = distutils.util.strtobool, default = 'True',
help = 'Use lossless compression to reduce the memory footprint')
-parser.add_argument('--deep_model',
- type = distutils.util.strtobool, default = 'True',
- help = 'Use Afroze\'s Alexnet-like deep model')
+parser.add_argument('--model',
+ type = str, default = 'deepnet',
+ help = 'What model to use')
parser.add_argument('--test_loaded_models',
type = distutils.util.strtobool, default = 'False',
# -- full(84x2) -> 2 1
class AfrozeShallowNet(nn.Module):
+ name = 'shallownet'
+
def __init__(self):
super(AfrozeShallowNet, self).__init__()
self.conv1 = nn.Conv2d(1, 6, kernel_size=21)
self.conv3 = nn.Conv2d(16, 120, kernel_size=18)
self.fc1 = nn.Linear(120, 84)
self.fc2 = nn.Linear(84, 2)
- self.name = 'shallownet'
def forward(self, x):
x = fn.relu(fn.max_pool2d(self.conv1(x), kernel_size=2))
# Afroze's DeepNet
class AfrozeDeepNet(nn.Module):
+
+ name = 'deepnet'
+
def __init__(self):
super(AfrozeDeepNet, self).__init__()
self.conv1 = nn.Conv2d( 1, 32, kernel_size=7, stride=4, padding=3)
self.fc1 = nn.Linear(1536, 256)
self.fc2 = nn.Linear(256, 256)
self.fc3 = nn.Linear(256, 2)
- self.name = 'deepnet'
def forward(self, x):
x = self.conv1(x)
######################################################################
+class DeepNet2(nn.Module):
+ name = 'deepnet2'
+
+ def __init__(self):
+ super(DeepNet2, self).__init__()
+ self.conv1 = nn.Conv2d( 1, 32, kernel_size=7, stride=4, padding=3)
+ self.conv2 = nn.Conv2d( 32, 256, kernel_size=5, padding=2)
+ self.conv3 = nn.Conv2d(256, 256, kernel_size=3, padding=1)
+ self.conv4 = nn.Conv2d(256, 256, kernel_size=3, padding=1)
+ self.conv5 = nn.Conv2d(256, 256, kernel_size=3, padding=1)
+ self.fc1 = nn.Linear(4096, 512)
+ self.fc2 = nn.Linear(512, 512)
+ self.fc3 = nn.Linear(512, 2)
+
+ def forward(self, x):
+ x = self.conv1(x)
+ x = fn.max_pool2d(x, kernel_size=2)
+ x = fn.relu(x)
+
+ x = self.conv2(x)
+ x = fn.max_pool2d(x, kernel_size=2)
+ x = fn.relu(x)
+
+ x = self.conv3(x)
+ x = fn.relu(x)
+
+ x = self.conv4(x)
+ x = fn.relu(x)
+
+ x = self.conv5(x)
+ x = fn.max_pool2d(x, kernel_size=2)
+ x = fn.relu(x)
+
+ x = x.view(-1, 4096)
+
+ x = self.fc1(x)
+ x = fn.relu(x)
+
+ x = self.fc2(x)
+ x = fn.relu(x)
+
+ x = self.fc3(x)
+
+ return x
+
+######################################################################
+
+class DeepNet3(nn.Module):
+ name = 'deepnet3'
+
+ def __init__(self):
+ super(DeepNet2, self).__init__()
+ self.conv1 = nn.Conv2d( 1, 32, kernel_size=7, stride=4, padding=3)
+ self.conv2 = nn.Conv2d( 32, 256, kernel_size=5, padding=2)
+ self.conv3 = nn.Conv2d(256, 256, kernel_size=3, padding=1)
+ self.conv4 = nn.Conv2d(256, 256, kernel_size=3, padding=1)
+ self.conv5 = nn.Conv2d(256, 256, kernel_size=3, padding=1)
+ self.conv6 = nn.Conv2d(256, 256, kernel_size=3, padding=1)
+ self.conv7 = nn.Conv2d(256, 256, kernel_size=3, padding=1)
+ self.fc1 = nn.Linear(4096, 512)
+ self.fc2 = nn.Linear(512, 512)
+ self.fc3 = nn.Linear(512, 2)
+
+ def forward(self, x):
+ x = self.conv1(x)
+ x = fn.max_pool2d(x, kernel_size=2)
+ x = fn.relu(x)
+
+ x = self.conv2(x)
+ x = fn.max_pool2d(x, kernel_size=2)
+ x = fn.relu(x)
+
+ x = self.conv3(x)
+ x = fn.relu(x)
+
+ x = self.conv4(x)
+ x = fn.relu(x)
+
+ x = self.conv5(x)
+ x = fn.max_pool2d(x, kernel_size=2)
+ x = fn.relu(x)
+
+ x = self.conv6(x)
+ x = fn.relu(x)
+
+ x = self.conv7(x)
+ x = fn.relu(x)
+
+ x = x.view(-1, 4096)
+
+ x = self.fc1(x)
+ x = fn.relu(x)
+
+ x = self.fc2(x)
+ x = fn.relu(x)
+
+ x = self.fc3(x)
+
+ return x
+
+######################################################################
+
def nb_errors(model, data_set):
ne = 0
for b in range(0, data_set.nb_batches):
######################################################################
-def train_model(model, train_set, validation_set):
+def train_model(model, model_filename, train_set, validation_set, nb_epochs_done = 0):
batch_size = args.batch_size
criterion = nn.CrossEntropyLoss()
start_t = time.time()
- for e in range(0, args.nb_epochs):
+ for e in range(nb_epochs_done, args.nb_epochs):
acc_loss = 0.0
for b in range(0, train_set.nb_batches):
input, target = train_set.get_batch(b)
log_string('train_loss {:d} {:f}'.format(e + 1, acc_loss),
' [ETA ' + time.ctime(time.time() + dt * (args.nb_epochs - e)) + ']')
+ torch.save([ model.state_dict(), e + 1 ], model_filename)
+
if validation_set is not None:
nb_validation_errors = nb_errors(model, validation_set)
)
self.last_t = t
+def save_examplar_vignettes(data_set, nb, name):
+ n = torch.randperm(data_set.nb_samples).narrow(0, 0, nb)
+
+ for k in range(0, nb):
+ b = n[k] // data_set.batch_size
+ m = n[k] % data_set.batch_size
+ i, t = data_set.get_batch(b)
+ i = i[m].float()
+ i.sub_(i.min())
+ i.div_(i.max())
+ if k == 0: patchwork = Tensor(nb, 1, i.size(1), i.size(2))
+ patchwork[k].copy_(i)
+
+ torchvision.utils.save_image(patchwork, name)
+
######################################################################
if args.nb_train_samples%args.batch_size > 0 or args.nb_test_samples%args.batch_size > 0:
log_string('using_uncompressed_vignettes')
VignetteSet = svrtset.VignetteSet
+########################################
+model_class = None
+for m in [ AfrozeShallowNet, AfrozeDeepNet, DeepNet2, DeepNet3 ]:
+ if args.model == m.name:
+ model_class = m
+ break
+if model_class is None:
+ print('Unknown model ' + args.model)
+ raise
+
+log_string('using model class ' + m.name)
+########################################
+
for problem_number in map(int, args.problems.split(',')):
log_string('############### problem ' + str(problem_number) + ' ###############')
- if args.deep_model:
- model = AfrozeDeepNet()
- else:
- model = AfrozeShallowNet()
+ model = model_class()
if torch.cuda.is_available(): model.cuda()
model_filename = model.name + '_pb:' + \
str(problem_number) + '_ns:' + \
- int_to_suffix(args.nb_train_samples) + '.param'
+ int_to_suffix(args.nb_train_samples) + '.state'
nb_parameters = 0
for p in model.parameters(): nb_parameters += p.numel()
##################################################
# Tries to load the model
- need_to_train = False
try:
- model.load_state_dict(torch.load(model_filename))
+ model_state_dict, nb_epochs_done = torch.load(model_filename)
+ model.load_state_dict(model_state_dict)
log_string('loaded_model ' + model_filename)
except:
- need_to_train = True
+ nb_epochs_done = 0
+
##################################################
# Train if necessary
- if need_to_train:
+ if nb_epochs_done < args.nb_epochs:
log_string('training_model ' + model_filename)
train_set.nb_samples / (time.time() - t))
)
+ if args.nb_exemplar_vignettes > 0:
+ save_examplar_vignettes(train_set, args.nb_exemplar_vignettes,
+ 'examplar_{:d}.png'.format(problem_number))
+
if args.validation_error_threshold > 0.0:
validation_set = VignetteSet(problem_number,
args.nb_validation_samples, args.batch_size,
else:
validation_set = None
- train_model(model, train_set, validation_set)
- torch.save(model.state_dict(), model_filename)
+ train_model(model, model_filename, train_set, validation_set, nb_epochs_done = nb_epochs_done)
log_string('saved_model ' + model_filename)
nb_train_errors = nb_errors(model, train_set)
##################################################
# Test if necessary
- if need_to_train or args.test_loaded_models:
+ if nb_epochs_done < args.nb_epochs or args.test_loaded_models:
t = time.time()
projects / pysvrt.git / blobdiff