def __init__(self,
num_factors,
num_users,
num_items,
L=5,
d=16,
d_prime=4,
drop_ratio=0.05,
**kwargs):
super(Caser, self).__init__(**kwargs)
self.P = nn.Embedding(num_users, num_factors)
self.Q = nn.Embedding(num_items, num_factors)
self.d_prime, self.d = d_prime, d
# Vertical convolution layer
self.conv_v = nn.Conv2D(d_prime, (L, 1), in_channels=1)
# Horizontal convolution layer
h = [i + 1 for i in range(L)]
self.conv_h, self.max_pool = nn.Sequential(), nn.Sequential()
for i in h:
self.conv_h.add(nn.Conv2D(d, (i, num_factors), in_channels=1))
self.max_pool.add(nn.MaxPool1D(L - i + 1))
# Fully-connected layer
self.fc1_dim_v, self.fc1_dim_h = d_prime * num_factors, d * len(h)
self.fc = nn.Dense(in_units=d_prime * num_factors + d * L,
activation='relu',
units=num_factors)
self.Q_prime = nn.Embedding(num_items, num_factors * 2)
self.b = nn.Embedding(num_items, 1)
self.dropout = nn.Dropout(drop_ratio)
def __init__(self, channels, reduction=16):
super(SELayer, self).__init__()
self.avg_pool = nn.AdaptiveAvgPool2d(1)
self.fc = nn.Sequential(
nn.Conv2D(channels,
channels // reduction,
kernel_size=1,
padding=0), nn.ReLU(inplace=True),
nn.Conv2D(channels,
channels // reduction,
kernel_size=1,
padding=0), nn.Sigmoid())
def convolution_block(filters, size, strides=(1, 1), padding='same', activation=True):
result = nn.Sequential(
nn.Conv2D(filters, size, strides=strides, padding=padding),
nn.BatchNorm2d(),
nn.ReLU6()
)
return result
def __init__(self): super(Generator,self).__init__() #first layer of convolution without the residual block self.conv1=nn.Sequuential(nn.Conv2d(3,64,9,1,4), nn.Prelu()) #a serie of residual blocks (8) resBlocks=[] for i in range(8): resBlocks.append(ResBlock(64)) self.resBlocks=nn.Sequuential(*resBlocks) #second convolution after the residual blocks self.conv2=nn.Sequential(nn.Conv2d(64,64,3,1,1),nn.BatchNorm2D(64,0.8)) # upsampling layer with PixelShuffle like stated in the paper self.upsampling=nn.Sequential(nn.Conv2d(64,256,3,1,1), nn.BatchNorm2D(256), nn.PixelShuffle(2), nn.PRelu(), nn.Conv2d(64,256,3,1,1), nn.BatchNorm2D(256), nn.PixelShuffle(2), nn.PRelu()) self.conv3=nn.Sequential(nn.Conv2D(64,3,9,1,4),nn.Tahn())
def __init__(self,
state_size,
action_size,
learning_rate,
name='DQNetwork'):
self.state_size = state_size
self.action_size = action_size
self.learning_rate = learning_rate
linear = nn.linear
self.feature = nn.Sequential(
nn.Conv2d(in_channels=4,
out_channels=32,
kernel_size=8,
filters=32,
stride=4), nn.ELU(), nn.BatchNorm2d(32),
nn.Conv2d(in_channels=4,
out_channels=64,
kernel_size=4,
filters=64,
stride=2), nn.ELU(), nn.BatchNorm2d(64),
nn.Conv2D(in_channels=4,
out_channels=128,
kernel_size=4,
filters=128), nn.BatchNorm2d(128), nn.ELU(), Flatten(),
linear(7 * 7 * 64, 256), nn.ELU(), linear(256, 448), nn.ELU())
def hg(**kwargs):
model = HourglassNet(
Bottleneck2D,
head=kwargs.get("head", lambda c_in, c_out: nn.Conv2D(c_in, c_out, 1)),
depth=kwargs["depth"],
num_stacks=kwargs["num_stacks"],
num_blocks=kwargs["num_blocks"],
num_classes=kwargs["num_classes"],
)
return model
def LateralConnect2D(upsample2D,
downsample2D,
filters):
channels = upsample2D.view(upsample2D.size(0), -1)
result = torch.add(upsample2D, nn.Conv2d(
channels, filters, 1, (1, 1))(downsample2D))
result = nn.Conv2D(channels, filters, 1, (1, 1))(result)
return result
def __init__(self):
super().__init__()
self.encoder = nn.Sequential(
nn.Conv2D(36, 64),
nn.ReLU(),
nn.Linear(64, 3))
self.decoder = nn.Sequential(
nn.Linear(3, 64),
nn.ReLU(),
nn.Linear(64, 28 * 28))
def __init__(self, start_neurons, dropout_ratio=0.5):
super().__init__()
self.conv1 = nn.Sequential(
nn.Conv2D(start_neurons * 1, (3, 3), activation=None, padding=0),
self.residual_block(start_neurons * 1),
self.residual_block(start_neurons * 1),
nn.ReLU6(),
nn.MaxPool2d((2, 2)),
nn.Dropout2d(dropout_ratio / 2),
)
self.conv2 = nn.Sequential(
nn.Conv2D(start_neurons * 2, (3, 3), activation=None, padding=0),
self.residual_block(start_neurons * 2),
self.residual_block(start_neurons * 2),
nn.ReLU6(),
nn.MaxPool2d((2, 2)),
nn.Dropout2d(dropout_ratio)
)
self.conv3 = nn.Sequential(
nn.Conv2D(start_neurons * 4, (3, 3), activation=None, padding=0),
self.residual_block(start_neurons * 4),
self.residual_block(start_neurons * 4),
nn.ReLU6(),
nn.MaxPool2d((2, 2)),
nn.Dropout2d(dropout_ratio)
)
self.conv4 = nn.Sequential(
nn.Conv2d(start_neurons * 8, (3, 3), activation=None, padding=0),
self.residual_block(start_neurons * 8),
self.residual_block(start_neurons * 8),
nn.ReLU6(),
nn.MaxPool2d((2, 2)),
nn.Dropout2d(dropout_ratio),
)
def __init__(self):
super(simpleModel, self).__init__()
self.conv = nn.Conv2D(in_channels=3,
out_channels=16,
kernel_size=3,
padding=1,
strides=1,
bias=False)
self.batchnorm = nn.BatchNorm2D(16, affine=True)
self.relu = nn.Activation('relu')
self.avg_pool = AvgPool2D(8)
self.flatten = Flatten()
self.fc = nn.Linear(256,
10) #torch에는 softmax가 없고 대신 crossetnrotpyloss를 쓴다
def __init__(self, state_size):
super().__init__(name='')
prev_channels = state_size[-1]
self.activation = nn.ReLU()
self.conv2A = nn.Conv2d(in_channels=prev_channels,
out_channels=32,
kernel_size=8,
stride=4)
self.conv2B = nn.Conv2d(in_channels=32,
out_channels=64,
kernel_size=4,
stride=2)
self.conv2C = nn.Conv2d(in_channels=64,
out_channels=64,
kernel_size=3,
stride=1)
self.conv2d = nn.Conv2D(in_channels=64,
out_channels=64,
kernel_size=3,
stride=1)
def __init__(self,
in_channels,
out_channels,
stride=1,
width_factor=1,
base_width=64):
super(ResBlock, self).__init__()
self.relu = nn.ReLU(inplace=True)
self.conv1 = nn.Conv2d(in_channels,
out_channels,
3,
padding=1,
bias=False)
self.bn1 = nn.BatchNorm2d(out_channels)
self.conv2 = nn.Conv2D(out_channels,
out_channels,
3,
padding=1,
bias=False)
self.bn2 = nn.BatchNorm2d(out_channels)
self.res_con = nn.Sequential(
nn.Conv2d(in_channels, out_channels, 1, bias=False, stride=stride),
nn.BatchNorm2d(out_channels))
def __init__(self):
super(BaselineAMT,self).__init__()
self.conv1 = nn.Conv2D(1,64,kernel_size=3)
self.conv2 = nn.Conv2D(64,64,kernel_size=3)
self.conv3 = nn.Conv2D(64,64,kernel_size=3)
return
def _conv_layer(self, in_channels, out_channels, kernel_size, stride,
padding):
return nn.Sequential(
nn.Conv2D(in_channels, out_channels, kernel_size, stride, padding),
nn.ReLU(-1)
)
def __init__(self,
D_shape_in,
A_dim,
conv_hiddens,
kernel_sizes=5,
strides=2,
linear_hiddens=[],
D_out=1,
activation=F.relu,
use_batch_norm=True,
transform_hiddens=[],
use_action_gating=False,
use_residual=False):
"""
D_shape_in: tupe of two ints, the shape of input images
D_out: a int or a list of ints in length of degree of freedoms
hiddens, kernel_sizes, strides: either an int or a list of ints with the same length
"""
super(DDPGCNNCritic, self).__init__()
if isinstance(conv_hiddens, int): conv_hiddens = [conv_hiddens]
if isinstance(linear_hiddens, int): linear_hiddens = [linear_hiddens]
if isinstance(kernel_sizes, int): kernel_sizes = [kernel_sizes]
if isinstance(strides, int): strides = [strides]
self.n_layer = max(len(conv_hiddens), len(kernel_sizes), len(strides))
self.hiddens = conv_hiddens
self.kernel_sizes = kernel_sizes
self.strides = strides
self.use_residual = use_residual
if use_residual:
assert use_batch_norm, 'residual network requires batch norm!'
if len(self.hiddens) == 1: self.hiddens = self.hiddens * self.n_layer
if len(self.kernel_sizes) == 1:
self.kernel_sizes = self.kernel_sizes * self.n_layer
if len(self.strides) == 1: self.strides = self.strides * self.n_layer
assert (
(len(self.hiddens) == len(self.kernel_sizes))
and (len(self.strides) == len(self.hiddens))
), '[CNNGumbelPolicy] hiddens, kernel_sizes, strides must share the same length'
assert (isinstance(D_out, int))
self.out_dim = D_out
self.func = activation
# Convolution Layers for Image Features
self.conv_layers = []
self.bc_layers = []
prev_hidden = D_shape_in[0]
for i, dat in enumerate(
zip(self.hiddens, self.kernel_sizes, self.strides)):
h, k, s = dat
if self.use_residual and (i > 0):
shortcut = None if (s == 1) and (
h == prev_hidden) else nn.Conv2D(
prev_hidden, h, kernel_sizes=1, stride=s)
if shortcut is not None:
setattr('resconv_block%d_shortcut' % i, shortcut)
utils.initialize_weights(shortcut)
conv1 = nn.Conv2d(prev_hidden,
prev_hidden,
kernel_size=k,
stride=1)
conv2 = nn.Conv2d(prev_hidden, h, kernel_size=k, stride=s)
setattr(self, 'resconv_block%d_conv1' % i, conv1)
setattr(self, 'resconv_block%d_conv2' % i, conv2)
utils.initialize_weights(conv1)
utils.initialize_weights(conv2)
bc1 = nn.BatchNorm2d(prev_hidden)
bc2 = nn.BatchNorm2d(h)
setattr(self, 'resconv_block%d_bc1' % i, bc1)
setattr(self, 'resconv_block%d_bc2' % i, bc2)
utils.initialize_weights(bc1)
utils.initialize_weights(bc2)
self.bc_layers.append((bc1, bc2))
self.conv_layers.append((conv1, conv2, shortcut))
else:
self.conv_layers.append(
nn.Conv2d(prev_hidden, h, kernel_size=k, stride=s))
setattr(self, 'conv_layer%d' % i, self.conv_layers[-1])
utils.initialize_weights(self.conv_layers[-1])
if use_batch_norm:
self.bc_layers.append(nn.BatchNorm2d(h))
setattr(self, 'bc_layer%d' % i, self.bc_layers[-1])
utils.initialize_weights(self.bc_layers[-1])
else:
self.bc_layers.append(None)
prev_hidden = h
self.feat_size = self._get_feature_dim(D_shape_in)
print('Feature Size = %d' % self.feat_size)
# Transformation Layers to change the action dimension
self.use_action_gating = use_action_gating
self.trans_layers = []
if use_action_gating:
if transform_hiddens[-1] != self.feat_size:
transform_hiddens.append(self.feat_size)
for i, d in enumerate(transform_hiddens):
self.trans_layers.append(nn.Linear(A_dim, d))
setattr(self, 'trans_layer%d' % i, self.trans_layers[-1])
utils.initialize_weights(self.trans_layers[-1])
A_dim = d
# Final Layers for produce final Q value
self.linear_layers = []
if not use_action_gating:
# concatenate feature and action
prev_dim = self.feat_size + A_dim
else:
# use gating
prev_dim = self.feat_size
linear_hiddens.append(self.out_dim)
for i, d in enumerate(linear_hiddens):
self.linear_layers.append(nn.Linear(prev_dim, d))
setattr(self, 'linear_layer%d' % i, self.linear_layers[-1])
utils.initialize_weights(self.linear_layers[-1],
small_init=(i == len(linear_hiddens) - 1))
prev_dim = d