def __init__(self, kernel_size):
super(MoNet, self).__init__()
self.conv1 = GMMConv(1, 32, dim=2, kernel_size=kernel_size)
self.conv2 = GMMConv(32, 64, dim=2, kernel_size=kernel_size)
self.conv3 = GMMConv(64, 64, dim=2, kernel_size=kernel_size)
self.fc1 = torch.nn.Linear(64, 128)
self.fc2 = torch.nn.Linear(128, 10)
def __init__(self, net_params):
super().__init__()
self.name = 'MoNet'
in_dim_node = net_params['in_dim']
hidden_dim = net_params['hidden_dim']
out_dim = net_params['out_dim']
kernel = net_params['kernel'] # for MoNet
dim = net_params['pseudo_dim_MoNet'] # for MoNet
n_classes = net_params['n_classes']
self.dropout = net_params['dropout']
self.n_layers = net_params['L']
self.readout = net_params['readout']
self.batch_norm = net_params['batch_norm']
self.residual = net_params['residual']
self.device = net_params['device']
self.n_classes = n_classes
self.dim = dim
# aggr_type = "sum" # default for MoNet
aggr_type = "mean"
self.embedding_h = nn.Linear(in_dim_node,
hidden_dim) # node feat is an integer
# self.embedding_e = nn.Linear(1, dim) # edge feat is a float
self.layers = nn.ModuleList()
self.pseudo_proj = nn.ModuleList()
self.batchnorm_h = nn.ModuleList()
# Hidden layer
for _ in range(self.n_layers - 1):
self.layers.append(
GMMConv(hidden_dim,
hidden_dim,
dim,
kernel,
separate_gaussians=False,
aggr=aggr_type,
root_weight=True,
bias=True))
if self.batch_norm:
self.batchnorm_h.append(nn.BatchNorm1d(hidden_dim))
self.pseudo_proj.append(nn.Sequential(nn.Linear(2, dim),
nn.Tanh()))
# Output layer
self.layers.append(
GMMConv(hidden_dim,
out_dim,
dim,
kernel,
separate_gaussians=False,
aggr=aggr_type,
root_weight=True,
bias=True))
if self.batch_norm:
self.batchnorm_h.append(nn.BatchNorm1d(out_dim))
self.pseudo_proj.append(nn.Sequential(nn.Linear(2, dim), nn.Tanh()))
# self.MLP_layer = MLPReadout(out_dim, n_classes)
self.MLP_layer = nn.Linear(out_dim, n_classes, bias=True)
def test_gmm_conv(separate_gaussians):
x1 = torch.randn(4, 8)
x2 = torch.randn(2, 16)
edge_index = torch.tensor([[0, 1, 2, 3], [0, 0, 1, 1]])
row, col = edge_index
value = torch.rand(row.size(0), 3)
adj = SparseTensor(row=row, col=col, value=value, sparse_sizes=(4, 4))
conv = GMMConv(8,
32,
dim=3,
kernel_size=25,
separate_gaussians=separate_gaussians)
assert conv.__repr__() == 'GMMConv(8, 32, dim=3)'
out = conv(x1, edge_index, value)
assert out.size() == (4, 32)
assert torch.allclose(conv(x1, edge_index, value, size=(4, 4)), out)
assert torch.allclose(conv(x1, adj.t()), out)
if is_full_test():
t = '(Tensor, Tensor, OptTensor, Size) -> Tensor'
jit = torch.jit.script(conv.jittable(t))
assert torch.allclose(jit(x1, edge_index, value), out)
assert torch.allclose(jit(x1, edge_index, value, size=(4, 4)), out)
t = '(Tensor, SparseTensor, OptTensor, Size) -> Tensor'
jit = torch.jit.script(conv.jittable(t))
assert torch.allclose(jit(x1, adj.t()), out)
adj = adj.sparse_resize((4, 2))
conv = GMMConv((8, 16),
32,
dim=3,
kernel_size=5,
separate_gaussians=separate_gaussians)
assert conv.__repr__() == 'GMMConv((8, 16), 32, dim=3)'
out1 = conv((x1, x2), edge_index, value)
out2 = conv((x1, None), edge_index, value, (4, 2))
assert out1.size() == (2, 32)
assert out2.size() == (2, 32)
assert torch.allclose(conv((x1, x2), edge_index, value, (4, 2)), out1)
assert torch.allclose(conv((x1, x2), adj.t()), out1)
assert torch.allclose(conv((x1, None), adj.t()), out2)
if is_full_test():
t = '(OptPairTensor, Tensor, OptTensor, Size) -> Tensor'
jit = torch.jit.script(conv.jittable(t))
assert torch.allclose(jit((x1, x2), edge_index, value), out1)
assert torch.allclose(jit((x1, x2), edge_index, value, size=(4, 2)),
out1)
assert torch.allclose(jit((x1, None), edge_index, value, size=(4, 2)),
out2)
t = '(OptPairTensor, SparseTensor, OptTensor, Size) -> Tensor'
jit = torch.jit.script(conv.jittable(t))
assert torch.allclose(jit((x1, x2), adj.t()), out1)
assert torch.allclose(jit((x1, None), adj.t()), out2)
def __init__(self, num_features):
super(MoNet, self).__init__()
self.conv1 = GMMConv(in_channels=num_features, out_channels=32, dim=2)
self.batchnorm_1 = torch.nn.BatchNorm1d(32)
self.conv2 = GMMConv(in_channels=32, out_channels=64, dim=2)
self.batchnorm_2 = torch.nn.BatchNorm1d(64)
self.conv3 = GMMConv(in_channels=64, out_channels=64, dim=2)
self.batchnorm_3 = torch.nn.BatchNorm1d(64)
self.fc1 = torch.nn.Linear(64, 80)
self.fc2 = torch.nn.Linear(80, 10)
def __init__(self, kernel_size, dropout=0.5, wgan=False, device='cpu'):
super(MoNet, self).__init__()
self.conv1 = GMMConv(1, 32, dim=2, kernel_size=kernel_size)
self.conv2 = GMMConv(32, 64, dim=2, kernel_size=kernel_size)
self.conv3 = GMMConv(64, 64, dim=2, kernel_size=kernel_size)
self.fc1 = torch.nn.Linear(64, 128)
self.fc2 = torch.nn.Linear(128, 1)
self.dropout = dropout
self.device = device
self.wgan = wgan
def test_gmm_conv():
in_channels, out_channels = (16, 32)
edge_index = torch.tensor([[0, 0, 0, 1, 2, 3], [1, 2, 3, 0, 0, 0]])
num_nodes = edge_index.max().item() + 1
x = torch.randn((num_nodes, in_channels))
pseudo = torch.rand((edge_index.size(1), 3))
conv = GMMConv(in_channels, out_channels, dim=3, kernel_size=25)
assert conv.__repr__() == 'GMMConv(16, 32)'
assert conv(x, edge_index, pseudo).size() == (num_nodes, out_channels)
def __init__(self):
super(Net, self).__init__()
self.conv1 = GMMConv(1, 64, dim=2)
self.bn1 = torch.nn.BatchNorm1d(64)
self.conv2 = GMMConv(64, 128, dim=2)
self.bn2 = torch.nn.BatchNorm1d(128)
self.conv3 = GMMConv(128, 256, dim=2)
self.bn3 = torch.nn.BatchNorm1d(256)
self.conv4 = GMMConv(256, 512, dim=2)
self.bn4 = torch.nn.BatchNorm1d(512)
self.fc1 = torch.nn.Linear(32 * 512, 1024)
self.fc2 = torch.nn.Linear(1024, 10)
def test_gmm_conv():
in_channels, out_channels = (16, 32)
edge_index = torch.tensor([[0, 0, 0, 1, 2, 3], [1, 2, 3, 0, 0, 0]])
num_nodes = edge_index.max().item() + 1
x = torch.randn((num_nodes, in_channels))
pseudo = torch.rand((edge_index.size(1), 3))
conv = GMMConv(in_channels, out_channels, dim=3, kernel_size=25)
assert conv.__repr__() == 'GMMConv(16, 32)'
out = conv(x, edge_index, pseudo)
assert out.size() == (num_nodes, out_channels)
jit_conv = conv.jittable()
jit_conv = torch.jit.script(jit_conv)
assert jit_conv(x, edge_index, pseudo).tolist() == out.tolist()
conv = GMMConv(in_channels,
out_channels,
dim=3,
kernel_size=25,
separate_gaussians=True)
out = conv(x, edge_index, pseudo)
assert out.size() == (num_nodes, out_channels)
jit_conv = conv.jittable()
jit_conv = torch.jit.script(jit_conv)
assert jit_conv(x, edge_index, pseudo).tolist() == out.tolist()
def __init__(self, num_features, kernel=3, dim=3):
super(MoNet, self).__init__()
self.conv1 = GMMConv(in_channels=num_features,
out_channels=8,
dim=dim,
kernel_size=kernel)
self.conv2 = GMMConv(in_channels=8,
out_channels=16,
dim=dim,
kernel_size=kernel)
self.conv3 = GMMConv(in_channels=16,
out_channels=8,
dim=dim,
kernel_size=kernel)
self.conv4 = GMMConv(in_channels=8,
out_channels=4,
dim=dim,
kernel_size=kernel)
def __init__(self, in_channel, out_channel):
super(ResidualBlock, self).__init__()
self.left_conv1 = GMMConv(in_channel,
out_channel,
dim=3,
kernel_size=5)
self.left_bn1 = torch.nn.BatchNorm1d(out_channel)
self.left_conv2 = GMMConv(out_channel,
out_channel,
dim=3,
kernel_size=5)
self.left_bn2 = torch.nn.BatchNorm1d(out_channel)
self.shortcut_conv = GMMConv(in_channel,
out_channel,
dim=3,
kernel_size=1)
self.shortcut_bn = torch.nn.BatchNorm1d(out_channel)
def __init__(self, num_layers=2, hidden=32, features_num=32, num_class=2):
super(GMM, self).__init__()
self.convs = torch.nn.ModuleList()
for i in range(num_layers):
self.convs.append(GMMConv(hidden, hidden, 1, 1))
self.out = Linear(hidden, num_class)
self.first_lin = Linear(features_num, hidden)
self.fuse_weight = torch.nn.Parameter(torch.FloatTensor(num_layers),requires_grad=True)
self.fuse_weight.data.fill_(float(1) / (num_layers + 1))
def get_layer(self, i, o):
sprint("Created GMMConv %d => %d" % (i, o))
return GMMConv(
in_channels=i,
out_channels=o,
dim=i,
kernel_size=self.kernel_size,
separate_gaussians=self.separate_gaussians,
)
def layers(self):
# TODO adapt to per-layer configurability
self.conv_in = GMMConv(in_channels=self.config.feature_dimensionality,
out_channels=self.config.hidden_units,
dim=self.config.pseudo_dimensionality,
bias=self.config.use_bias)
self.hidden_layers = torch.nn.ModuleList()
for i in range(self.config.hidden_layers):
layer = GMMConv(in_channels=self.config.hidden_units,
out_channels=self.config.hidden_units,
dim=self.config.pseudo_dimensionality,
bias=self.config.use_bias)
self.hidden_layers.append(layer)
self.conv_out = GMMConv(in_channels=self.config.hidden_units,
out_channels=self.model_type.out_channels,
dim=self.config.pseudo_dimensionality,
bias=self.config.use_bias)
def makeConv(self, nin, nout, conv_args):
# FeaStConv
if(conv_args['name'] == 'FeaSt'):
return FeaStConv(nin, nout, conv_args["num_heads"])
# SplineConv
if(conv_args['name'] == 'Spline'):
return SplineConv(nin, nout,
self.edge_dim,
conv_args["kernel_size"],
is_open_spline=conv_args["open_spline"],
degree=conv_args["degree"]
)
# GMMConv
if(conv_args['name'] == "GMM"):
return GMMConv(nin, nout,
self.edge_dim,
conv_args["kernel_size"]
)
# NNConv
if(conv_args["name"] == "NN"):
h = nn.Sequential(
nn.Linear(self.edge_dim, nin*nout),
nn.ReLU()
#nn.Linear(int(nin*nout/2), nin*nout)
)
return NNConv(nin, nout, h)
# PPFConv
if(conv_args["name"] == "PPF"):
cin = nin+4
hl = nn.Sequential(
nn.Linear(cin, conv_args['nhidden']),
nn.ReLU()
)
hg = nn.Linear(conv_args['nhidden'], nout)
#hl = nn.Sequential(
#nn.Linear(cin, int(conv_args['nhidden']/2)),
#nn.ReLU(),
#nn.Linear(int(conv_args['nhidden']/2), conv_args['nhidden'])
#)
#hg = nn.Sequential(
#nn.Linear(conv_args['nhidden'], nout),
#nn.ReLU(),
#nn.Linear(nout, nout)
#)
return PPFConv(hl, hg)
# CGConv
if(conv_args["name"] == "CG"):
return CGConv(nin, self.edge_dim)
def __init__(self, args):
super(GaussianGenerator, self).__init__()
self.args = args
self.conv1 = GMMConv(self.args.channels[0],
5 * self.args.channels[1],
dim=2,
kernel_size=args.kernel_size)
self.conv2 = GMMConv(self.args.channels[1],
3 * self.args.channels[2],
dim=2,
kernel_size=args.kernel_size)
self.conv3 = GMMConv(self.args.channels[2],
self.args.channels[3],
dim=2,
kernel_size=args.kernel_size)
self.pos1fc1 = torch.nn.Linear(2 + self.args.channels[1], 128)
self.pos1fc2 = torch.nn.Linear(128, 64)
self.pos1fc3 = torch.nn.Linear(64, 2)
self.pos2fc1 = torch.nn.Linear(2 + self.args.channels[2], 128)
self.pos2fc2 = torch.nn.Linear(128, 64)
self.pos2fc3 = torch.nn.Linear(64, 2)
def __init__(self,
input_dim=1024,
net_type='gcn',
channel_dims=[256, 256, 512],
fc_dim=512,
num_classes=256,
cheb_order=2):
super(GraphCNN, self).__init__()
# Define graph convolutional layers
gcn_dims = [input_dim] + channel_dims
self.net_type = net_type
if net_type == 'gcn':
gcn_layers = [
GCNConv(gcn_dims[i - 1], gcn_dims[i], bias=True)
for i in range(1, len(gcn_dims))
]
elif net_type == 'chebcn':
gcn_layers = [
ChebConv(gcn_dims[i - 1],
gcn_dims[i],
K=cheb_order,
normalization='sym',
bias=True) for i in range(1, len(gcn_dims))
]
elif net_type == 'gmmcn':
gcn_layers = [
GMMConv(gcn_dims[i - 1],
gcn_dims[i],
dim=1,
kernel_size=1,
separate_gaussians=False,
bias=True) for i in range(1, len(gcn_dims))
]
elif net_type == 'gincn':
gcn_layers = [
GINConv(MLP(gcn_dims[i - 1], gcn_dims[i], gcn_dims[i]),
eps=0,
train_eps=False) for i in range(1, len(gcn_dims))
]
self.gcn = nn.ModuleList(gcn_layers)
# Define dropout
self.drop = nn.Dropout(p=0.3)
# Define fully-connected layers
self.fc_dim = fc_dim
if self.fc_dim > 0:
self.fc = nn.Linear(channel_dims[-1], fc_dim)
self.fc_out = nn.Linear(fc_dim, num_classes)
else:
self.fc_out = nn.Linear(channel_dims[-1], num_classes)
def __init__(self):
super(Net, self).__init__()
self.conv1 = GMMConv(1, 64, dim=3, kernel_size=5)
self.bn1 = torch.nn.BatchNorm1d(64)
self.block1 = ResidualBlock(64, 128)
self.block2 = ResidualBlock(128, 256)
self.block3 = ResidualBlock(256, 512)
self.fc1 = torch.nn.Linear(8 * 512, 1024)
self.bn = torch.nn.BatchNorm1d(1024)
self.drop_out = torch.nn.Dropout()
self.fc2 = torch.nn.Linear(1024, 20)
def __init__(self, config):
super(MoNet, self).__init__()
monet_hidden_layer_sizes = [config.num_node_features] + list(
config.monet_params.hidden_layer_sizes)
linear_layer_sizes = (
[monet_hidden_layer_sizes[-1]] +
list(config.linear_layer_params.intermediate_layer_sizes) +
[config.num_classes])
self.monet_layers = ModuleList([
GMMConv(
in_channels=in_channels,
out_channels=out_channels,
dim=2,
kernel_size=config.kernel_size,
) for in_channels, out_channels in zip(
monet_hidden_layer_sizes[:-1], monet_hidden_layer_sizes[1:])
])
self.linear_layers = ModuleList([
Linear(in_features=in_features, out_features=out_features)
for in_features, out_features in zip(linear_layer_sizes[:-1],
linear_layer_sizes[1:])
])
def test_lazy_gmm_conv(separate_gaussians):
x1 = torch.randn(4, 8)
x2 = torch.randn(2, 16)
edge_index = torch.tensor([[0, 1, 2, 3], [0, 0, 1, 1]])
value = torch.rand(edge_index.size(1), 3)
conv = GMMConv(-1,
32,
dim=3,
kernel_size=25,
separate_gaussians=separate_gaussians)
assert conv.__repr__() == 'GMMConv(-1, 32, dim=3)'
out = conv(x1, edge_index, value)
assert out.size() == (4, 32)
conv = GMMConv((-1, -1),
32,
dim=3,
kernel_size=25,
separate_gaussians=separate_gaussians)
assert conv.__repr__() == 'GMMConv((-1, -1), 32, dim=3)'
out = conv((x1, x2), edge_index, value)
assert out.size() == (2, 32)
def __init__(self, in_channels, dim, out_size):
super(GaussGNN, self).__init__()
self.conv1 = GMMConv(in_channels, in_channels, dim, kernel_size=25)
self.conv2 = GMMConv(in_channels, in_channels, dim, kernel_size=25)
self.conv3 = GMMConv(in_channels, in_channels, dim, kernel_size=25)
self.linear = nn.Linear(in_channels, out_size)
def init_layers(self, batch):
self.layer_lst = [] ##[in_channel, out_channel, in_pn, out_pn, max_neighbor_num, neighbor_num_lst,neighbor_id_lstlst,conv_layer, residual_layer]
self.layer_num = len(self.channel_lst)
in_point_num = self.point_num
in_channel = 3
for l in range(self.layer_num):
out_channel = self.channel_lst[l]
weight_num = self.weight_num_lst[l]
residual_rate = self.residual_rate_lst[l]
connection_info = np.load(self.connection_layer_fn_lst[l])
print ("##Layer",self.connection_layer_fn_lst[l])
out_point_num = connection_info.shape[0]
neighbor_num_lst = torch.FloatTensor(connection_info[:,0].astype(float)).cuda() #out_point_num*1
neighbor_id_dist_lstlst = connection_info[:, 1:] #out_point_num*(max_neighbor_num*2)
neighbor_id_lstlst = neighbor_id_dist_lstlst.reshape((out_point_num, -1,2))[:,:,0] #out_point_num*max_neighbor_num
#neighbor_id_lstlst = torch.LongTensor(neighbor_id_lstlst)
avg_neighbor_num = neighbor_num_lst.mean().item()
max_neighbor_num = neighbor_id_lstlst.shape[1]
pc_mask = torch.ones(in_point_num+1).cuda()
pc_mask[in_point_num]=0
neighbor_mask_lst = pc_mask[ torch.LongTensor(neighbor_id_lstlst)].contiguous() #out_pn*max_neighbor_num neighbor is 1 otherwise 0
if((residual_rate<0) or (residual_rate>1)):
print ("Invalid residual rate", residual_rate)
####parameters for conv###############
conv_layer = ""
if(residual_rate<1):
edge_index_lst = self.get_edge_index_lst_from_neighbor_id_lstlst(neighbor_id_lstlst, neighbor_num_lst)
print ("edge_index_lst", edge_index_lst.shape)
if(self.conv_method=="Cheb"):
conv_layer = edge_index_lst, ChebConv(in_channel, out_channel, K=6, normalization='sym', bias=True)
for p in conv_layer[-1].parameters():
p.data=p.data.cuda()
ii=0
for p in conv_layer[-1].parameters():
p.data=p.data.cuda()/10
self.register_parameter("GMM"+str(l)+"_"+str(ii),p)
ii+=1
elif(self.conv_method=="GAT"):
#conv_layer = edge_index_lst,GATConv(in_channel, out_channel, heads=1)
if((l!=((self.layer_num/2)-2)) and (l!=(self.layer_num-1))): #not middle or last layer
conv_layer = edge_index_lst, GATConv(in_channel, out_channel, heads=8, concat=True)
out_channel=out_channel*8
else:
conv_layer = edge_index_lst, GATConv(in_channel, out_channel, heads=8, concat=False)
for p in conv_layer[-1].parameters():
p.data=p.data.cuda()
ii=0
for p in conv_layer[-1].parameters():
p.data=p.data.cuda()
self.register_parameter("GAT"+str(l)+"_"+str(ii),p)
ii+=1
#conv_layer = edge
elif(self.conv_method=="GMM"):
pseudo_coordinates = self.get_GMM_pseudo_coordinates( edge_index_lst, neighbor_num_lst) #edge_num*2
#print ("pseudo_coordinates", pseudo_coordinates.shape)
conv_layer = edge_index_lst,pseudo_coordinates, GMMConv(in_channel, out_channel, dim=2 , kernel_size=25)
ii=0
for p in conv_layer[-1].parameters():
p.data=p.data.cuda()
self.register_parameter("GMM"+str(l)+"_"+str(ii),p)
ii+=1
elif(self.conv_method=="FeaST"):
conv_layer = edge_index_lst,FeaStConv(in_channel, out_channel, heads=32)
ii=0
for p in conv_layer[-1].parameters():
p.data=p.data.cuda()
self.register_parameter("FeaST"+str(l)+"_"+str(ii),p)
ii+=1
elif(self.conv_method=="vw"):
weights = torch.randn(out_point_num, max_neighbor_num, out_channel,in_channel)/(avg_neighbor_num*weight_num)
weights = nn.Parameter(weights.cuda())
self.register_parameter("weights"+str(l),weights)
bias = nn.Parameter(torch.zeros(out_channel).cuda())
if(self.perpoint_bias == 1):
bias= nn.Parameter(torch.zeros(out_point_num, out_channel).cuda())
self.register_parameter("bias"+str(l),bias)
conv_layer = (weights, bias)
else:
print ("ERROR! Unknown convolution layer!!!")
zeros_batch_outpn_outchannel = torch.zeros((batch, out_point_num, out_channel)).cuda()
####parameters for residual###############
residual_layer = ""
if(residual_rate>0):
p_neighbors = ""
weight_res = ""
if((out_point_num != in_point_num) and (self.use_vanilla_pool == 0)):
p_neighbors = nn.Parameter((torch.randn(out_point_num, max_neighbor_num)/(avg_neighbor_num)).cuda())
self.register_parameter("p_neighbors"+str(l),p_neighbors)
if(out_channel != in_channel):
weight_res = torch.randn(out_channel,in_channel)
#self.normalize_weights(weight_res)
weight_res = weight_res/out_channel
weight_res = nn.Parameter(weight_res.cuda())
self.register_parameter("weight_res"+str(l),weight_res)
residual_layer = (weight_res, p_neighbors)
#####put everythin together
layer = (in_channel, out_channel, in_point_num, out_point_num, weight_num, max_neighbor_num, neighbor_num_lst,neighbor_id_lstlst, conv_layer, residual_layer, residual_rate, neighbor_mask_lst, zeros_batch_outpn_outchannel)
self.layer_lst +=[layer]
print ("in_channel", in_channel,"out_channel",out_channel, "in_point_num", in_point_num, "out_point_num", out_point_num, "weight_num", weight_num,
"max_neighbor_num", max_neighbor_num, "avg_neighbor_num", avg_neighbor_num)
in_point_num=out_point_num
in_channel = out_channel
def __init__(
self,
nIn,
nOut=None,
conv_args={},
pool_args={},
crf_args={},
nhidden=32,
nhidden_lin=16,
level_hidden_size_down=None,
level_hidden_size_up=None,
depth=2,
num_top_convs=3,
num_pool_convs=1,
num_unpool_convs=1,
act='relu',
use_skips=True,
#sum_skips=False,
dropout=0.5,
edge_dim=9,
name='net_conv_pool',
use_lin=True,
use_crf=False,
scale_edge_features=None):
super(NetConvPool, self).__init__()
self.depth = depth
self.dropout = dropout
self.use_skips = use_skips
#self.sum_skips = sum_skips
self.num_top_convs = num_top_convs
self.num_pool_convs = num_pool_convs
self.num_unpool_convs = num_unpool_convs
self.edge_dim = edge_dim
self.name = name
self.lin = use_lin
self.crf = use_crf
# get activation function
if (act == 'relu'):
self.act = F.relu
elif (act == 'elu'):
self.act = F.elu
elif (act == 'selu'):
self.act = F.selu
else:
self.act = act # assume we are passed a function
# determine convolution and pooling types
if depth > 0:
self.pool_type = pool_args["name"]
# build transforms
if self.pool_type == "MeshPool":
transforms = [GeometricEdgeFeatures()]
else:
transforms = [GenerateMeshNormals(), PointPairFeatures()]
if scale_edge_features:
transforms.append(ScaleEdgeFeatures(method=scale_edge_features))
self.transforms = Compose(transforms)
# containers to hold the layers
self.top_convs = torch.nn.ModuleList()
self.down_pools = torch.nn.ModuleList()
self.down_convs = torch.nn.ModuleList()
self.up_convs = torch.nn.ModuleList()
# set hidden size of every level
if level_hidden_size_down is None:
level_hidden_size_down = [nhidden] * (depth + 1)
if level_hidden_size_up is None:
level_hidden_size_up = level_hidden_size_down[(depth - 1)::-1]
level_hidden_size_up = [level_hidden_size_down[-1]
] + level_hidden_size_up
assert len(level_hidden_size_down) == depth + 1
assert len(level_hidden_size_up) == depth + 1
# down FC layer (dimentionality reduction)
self.lin1 = nn.Linear(nIn, nhidden_lin)
# top convolutions
nin = nhidden_lin
nout = level_hidden_size_down[0]
for i in range(num_top_convs):
self.top_convs.append(
GMMConv(nin, nout, edge_dim, conv_args["kernel_size"]))
nin = nout
# down layers
nin = nout
for i in range(depth):
nout = level_hidden_size_down[i + 1]
# pooling
self.down_pools.append(self.makePool(nin, **pool_args))
# convolution
for j in range(num_pool_convs):
self.down_convs.append(
GMMConv(nin, nout, edge_dim, conv_args["kernel_size"]))
nin = nout
# up layers
for i in range(depth):
j = depth - i - 1
nin = level_hidden_size_up[i] + level_hidden_size_down[
j] if use_skips else level_hidden_size_up[i]
nout = level_hidden_size_up[i + 1]
# convolution
for k in range(num_unpool_convs):
self.up_convs.append(
GMMConv(nin, nout, edge_dim, conv_args["kernel_size"]))
nin = nout
if use_crf:
# continuous CRF layer
self.crf1 = ContinuousCRF(**crf_args)
if use_lin:
# final FC layers
self.lin2 = nn.Linear(nout, nout)
self.lin3 = nn.Linear(nout, nout)
self.lin4 = nn.Linear(nout, nOut)