def __call__(self, x):
# x.shape == (batchsize, 3, 128, 64)
batchsize = x.shape[0]
h = F.elu(self.bn1(self.conv1_1(x)))
h = F.elu(self.bn2(self.conv1_2(h)))
h = F.max_pooling_2d(h, 3, 2, cover_all=False)
h = self.conv2_1(h)
h = self.conv2_3(h)
h = self.conv3_1(h)
h = self.conv3_3(h)
h = self.conv4_1(h)
h = self.conv4_3(h)
h = h.reshape(batchsize, -1)
h = F.dropout(h, ratio=0.6)
h = F.elu(self.fc1_bn(self.fc1(h)))
# Features in rows, normalize axis 1.
weights = self.mean_vectors
features = self.ball(h)
features = F.normalize(features, eps=1e-8)
scale = F.softplus(self.scale)
normalized_weight = F.normalize(weights, axis=0, eps=1e-8)
logits = F.tile(scale[None, ], (batchsize, 1)) * \
F.matmul(features, normalized_weight)
return logits
def __call__(self, X):
h0 = F.pad(X, ((0, 0), (0, 0), (0, 0), (37, 37)),
'constant') # (1, 96, 1366) -> (1, 96, 1440)
h1 = F.transpose(self.norm0(F.transpose(h0, axes=(0, 3, 1, 2))),
axes=(0, 2, 3, 1)) # normalize along time axis is OK?
h1 = F.max_pooling_2d(F.elu(self.norm1(self.conv1(h1))), (2, 2),
stride=(2, 2))
h1 = F.dropout(h1, ratio=0.1)
h2 = F.max_pooling_2d(F.elu(self.norm2(self.conv2(h1))), (3, 3),
stride=(3, 3))
h2 = F.dropout(h2, ratio=0.1)
h3 = F.max_pooling_2d(F.elu(self.norm3(self.conv3(h2))), (4, 4),
stride=(4, 4))
h3 = F.dropout(h3, ratio=0.1)
h4 = F.max_pooling_2d(F.elu(self.norm4(self.conv4(h3))), (4, 4),
stride=(4, 4))
h4 = F.dropout(h4, ratio=0.1)
h4 = F.transpose(h4, axes=(0, 3, 1, 2))
h4 = F.reshape(h4, (h4.shape[0], 15, 128))
self.gru1.reset_state() # reset hidden states per. track Is this OK?
self.gru2.reset_state() # reset hidden states per. track Is this OK?
for i in range(h4.shape[1]):
h5 = self.gru1(h4[:, i, :])
h6 = self.gru2(h5)
h6 = F.dropout(h6, ratio=0.3)
h7 = F.sigmoid(self.fc1(h6))
return h7
def forward(self, ws, cs, ls, dep_ts=None):
ws = map(self.emb_word, ws)
cs = [F.squeeze(
F.max_pooling_2d(
self.conv_char(
F.expand_dims(
self.emb_char(c), 1)), (int(l[0]), 1)))
for c, l in zip(cs, ls)]
xs_f = [F.dropout(F.concat([w, c]), 0.5) for w, c in zip(ws, cs)]
xs_b = [x[::-1] for x in xs_f]
_, _, hs_f = self.lstm_f(None, None, xs_f)
_, _, hs_b = self.lstm_b(None, None, xs_b)
hs_b = [x[::-1] for x in hs_b]
hs = [F.concat([h_f, h_b]) for h_f, h_b in zip(hs_f, hs_b)]
dep_ys = [self.biaffine_arc(
F.elu(F.dropout(self.arc_dep(h), 0.32)),
F.elu(F.dropout(self.arc_head(h), 0.32))) for h in hs]
if dep_ts is not None:
heads = dep_ts
else:
heads = [F.argmax(y, axis=1) for y in dep_ys]
cat_ys = [self.biaffine_tag(
F.elu(F.dropout(self.rel_dep(h), 0.32)),
F.elu(F.dropout(self.rel_head(
F.embed_id(t, h, ignore_label=IGNORE)), 0.32)))
for h, t in zip(hs, heads)]
return cat_ys, dep_ys
def forward(self, ws, ss, ps):
batchsize, length = ws.shape
xp = chainer.cuda.get_array_module(ws[0])
ws = self.emb_word(ws) # (batch, length, word_dim)
ss = F.reshape(self.emb_suf(ss), (batchsize, length, -1))
ps = F.reshape(self.emb_prf(ps), (batchsize, length, -1))
hs = F.transpose(F.concat([ws, ss, ps], 2), (1, 0, 2))
hs = F.dropout(hs, self.dropout_ratio, train=self.train)
hs = F.split_axis(hs, length, 0)
hs_f = []
hs_b = []
self._init_state()
for h_in_f, h_in_b in zip(hs, reversed(hs)):
h_f = self.lstm_f2(self.lstm_f1(F.reshape(h_in_f, (-1, self.in_dim))))
hs_f.append(h_f)
h_b = self.lstm_b2(self.lstm_b1(F.reshape(h_in_b, (-1, self.in_dim))))
hs_b.append(h_b)
hs = zip(hs_f, reversed(hs_b))
cat_ys = [self.linear_cat2(F.dropout(
F.elu(self.linear_cat1(h)), 0.5, train=self.train)) for h in hs]
dep_ys = [self.biaffine(
F.elu(F.dropout(self.linear_dep(h), 0.32, train=self.train)),
F.elu(F.dropout(self.linear_head(h), 0.32, train=self.train))) for h in hs]
return cat_ys, dep_ys
def __call__(self, x, test=False):
h = F.elu(self.c0(
x)) # no bn because images from generator will katayotteru?
h = F.elu(self.bn1(self.c1(h), test=test))
h = F.elu(self.bn2(self.c2(h), test=test))
h = F.elu(self.bn3(self.c3(h), test=test))
return self.l4l(h)
def forward(self, x):
n = x.data.shape[0]
h = F.reshape(x, (n, 1, 28, 28))
h = F.elu(self.conv1(h))
h = F.elu(self.conv2(h))
h = self.lin(h)
return h
def __call__(self, x):
# x.shape == (batchsize, 3, 128, 64)
batchsize = x.shape[0]
h = F.elu(self.bn1(self.conv1_1(x)))
h = F.elu(self.bn2(self.conv1_2(h)))
h = F.max_pooling_2d(h, 3, 2, cover_all=False)
h = self.conv2_1(h)
h = self.conv2_3(h)
h = self.conv3_1(h)
h = self.conv3_3(h)
h = self.conv4_1(h)
h = self.conv4_3(h)
h = h.reshape(batchsize, -1)
h = F.dropout(h, ratio=0.6)
h = F.elu(self.fc1_bn(self.fc1(h)))
# Features in rows, normalize axis 1.
weights = self.mean_vectors
features = self.ball(h)
features = F.normalize(features, eps=1e-8)
scale = F.softplus(self.scale)
normalized_weight = F.normalize(weights, axis=0, eps=1e-8)
logits = F.tile(scale[None, ], (batchsize, 1)) * \
F.matmul(features, normalized_weight)
return logits
def __call__(self, x):
h = F.elu(self.bnc1(self.c1(x)))
h = F.elu(self.bnc2(self.c2(h)))
h = F.elu(self.bnc3(self.c3(h)))
h = F.elu(self.bnc4(self.c4(h)))
h = self.c5(h)
return h
def fwd(self,x):
h_input = F.relu(self.l_input(x))
h0=F.elu(self.l0(h_input))
h1=F.elu(self.l1(h0))
h2=F.elu(self.l2(h1))
h3=F.elu(self.l3(h2))
h_output = self.l_output(h3)
return h_output
def __call__(self, z, test=False):
# mattya's implementation does not have bn after c1
h = F.elu(self.bn1(self.c1(z), test=test))
h = F.elu(self.bn2(self.c2(h), test=test))
h = F.elu(self.bn3(self.c3(h), test=test))
h = self.l0z(h)
print h.shape
return h
def __call__(self, x, test=False):
# no bn because images from generator will katayotteru?
h = F.elu(self.c0(x))
h = F.dropout(h, ratio=0.1, train=not test)
h = F.elu(self.bn1(self.c1(h), test=test))
h = F.elu(self.bn2(self.c2(h), test=test))
h = F.elu(self.bn3(self.c3(h), test=test))
l = self.l4l(h)
return l
def __call__(self, x, t):
n = x.data.shape[0]
h = F.reshape(x, (n, 1, 28, 28))
h = F.elu(self.conv1(h))
h = F.elu(self.conv2(h))
h = self.lin(h)
loss = F.softmax_cross_entropy(h, t)
acc = F.accuracy(h, t)
chainer.report({'loss': loss, 'acc': acc}, self)
return loss
def __call__(self, x):
h = F.elu(self.l0(x))
for i in range(self.n_blocks):
for j in range(self.block_size):
h = getattr(self, 'c{}'.format(i * self.block_size + j))(h)
h = F.elu(h)
if i < self.n_blocks - 1:
h = F.max_pooling_2d(h, ksize=2, stride=2)
return self.ln(h)
def forward(self, inputs):
# Input shape: [batch_size, num_nodes, feature_dims]
batch_size, num_nodes = inputs.shape[:2]
inputs = inputs.reshape(batch_size * num_nodes, -1)
# New shape: [batch_size * num_nodes, feature_dims]
x = F.elu(self.fc1(inputs))
x = F.dropout(x, self.dropout_prob)
x = F.elu(self.fc2(x))
x = self.bn(x)
return x.reshape(batch_size, num_nodes, -1)
def __call__(self, x):
h = x
for iL in range(self.NPLayers):
h = self.__dict__["P%d"%iL](h)
if iL==0: h = F.local_response_normalization(h)
h = F.max_pooling_2d(F.elu(h), ksize=self.NKsize[iL+1], cover_all=True)
h = F.spatial_pyramid_pooling_2d(F.elu(h), 3, F.MaxPooling2D)
h = F.dropout(F.elu(self.L1(h)),ratio=self.L1_dropout,train=self.IsTrain)
h = F.elu(self.L2(h))
y = h
return y
def forward(self, inputs):
# Input shape: [batch_size, num_nodes, feature_dims]
batch_size, num_nodes = inputs.shape[:2]
inputs = inputs.reshape(batch_size * num_nodes, -1)
# New shape: [batch_size * num_nodes, feature_dims]
x = F.elu(self.fc1(inputs))
x = F.dropout(x, self.dropout_prob)
x = F.elu(self.fc2(x))
x = self.bn(x)
return x.reshape(batch_size, num_nodes, -1)
def glimpse_net(self, glimpse, location):
# glimpse network includes next three nodes.
h_glimpse = F.elu(self.emb_x(glimpse))
# Location Encoding
h_location = F.elu(self.emb_l(location))
# g is the final glimpse feature vector
# equal to f_g(theta_g)
g = F.elu(self.fc_loc_to_glimpse(h_location) + \
F.reshape(self.fc_image_to_glimpse(h_glimpse), (glimpse.data.shape[0],-1))
)
return g
def __call__(self, x, test=False):
h = self.b1(F.elu(self.c1(x)), test=test)
h = self.b2(F.elu(self.c2(h)), test=test)
h = self.b3(F.elu(self.c3(h)), test=test)
h = self.r1(h, test=test)
h = self.r2(h, test=test)
h = self.r3(h, test=test)
h = self.r4(h, test=test)
h = self.r5(h, test=test)
h = self.b4(F.elu(self.d1(h)), test=test)
h = self.b5(F.elu(self.d2(h)), test=test)
y = self.d3(h)
return (F.tanh(y) + 1) * 127.5
def __call__(self, x, test=False):
h = x
h = F.elu(self.bn1(self.c1(h), test=test))
h = F.max_pooling_2d(h, 2)
h = F.elu(self.bn2(self.c2(h), test=test))
h = F.max_pooling_2d(h, 2)
h = F.elu(self.bn3(self.c3(h), test=test))
h = F.max_pooling_2d(h, 2)
h = F.elu(self.bn4(self.c4(h), test=test))
h = F.average_pooling_2d(h, 2)
mu = self.out_mu(F.sigmoid(self.c5_mu(h)))
vr = self.out_vr(F.sigmoid(self.c5_vr(h)))
return mu, vr
def __call__(self, x, test=False):
h = self.b1(F.elu(self.c1(x)))
h = self.b2(F.elu(self.c2(h)))
h = self.b3(F.elu(self.c3(h)))
h = self.r1(h)
h = self.r2(h)
h = self.r3(h)
h = self.r4(h)
h = self.r5(h)
h = self.b4(F.elu(self.d1(h)))
h = self.b5(F.elu(self.d2(h)))
y = self.d3(h)
return (F.tanh(y) + 1) * 127.5
def __call__(self, x):
h = funcs.elu(self.fc1(x))
h = funcs.elu(self.fc2(h))
hs = funcs.elu(self.fc3(h))
ha = funcs.elu(self.fc4(h))
state_value = self.state_value(hs)
advantage_value = self.advantage_value(ha)
advantage_mean = (funcs.sum(advantage_value, axis=1) /
float(self.output_size)).reshape(-1, 1)
q_value = funcs.concat(
[state_value for _ in range(self.output_size)],
axis=1) + (advantage_value - funcs.concat(
[advantage_mean for _ in range(self.output_size)], axis=1))
return q_value
def forward_one_step(self, state, x_last, train=True):
x = Variable(x_last, volatile=False)
a = F.elu(self.conv1(x))
l1 = F.dropout(F.elu(self.l1_x(a) + self.l1_h(state['h1'])),
train=train)
c1, h1 = F.lstm(state['c1'], l1)
l2 = F.dropout(F.elu(self.l2_h1(h1) + self.l2_h(state['h2'])),
train=train)
c2, h2 = F.lstm(state['c2'], l2)
state = {'c1': c1, 'h1': h1, 'c2': c2, 'h2': h2, 'x_last': x}
return state
def forward_down(self, x, sample=False):
"""
"""
h = F.elu(x)
h = self.down1(h)
sections = [self.z_dim, self.z_dim*2, self.z_dim*3,
self.z_dim*4, self.z_dim*4+self.h_dim]
pz_mean, pz_logv, rz_mean, rz_logv, down_context, h_det = \
F.split_axis(h, sections, axis=1)
prior = F.gaussian(pz_mean, 2 * pz_logv)
logps = self.gaussian_diag_logps(pz_mean, 2*pz_logv, prior)
if sample:
z = prior
context = 0
logqs = chainer.Variable(
self.xp.zeros(logps.shape, dtype="float32"), name="logqs")
else:
post_mean = rz_mean + self.qz_mean
post_logv = 2 * (rz_logv + self.qz_logv)
posterior = F.gaussian(post_mean, post_logv)
context = self.up_context + down_context
logqs = self.gaussian_diag_logps(post_mean, post_logv, posterior)
z = posterior
# autoregressive nn
h = self.ar1(z)
h = h + context
h = self.ar2(h)
sections = [self.z_dim]
arw_mean, arw_logv = F.split_axis(h, sections, axis=1)
# arw_mean, arw_logv = h[0] * 0.1, h[1] * 0.1 # ??
z = (z - 0.1*arw_mean) / F.exp(F.clip(0.1*arw_logv, -100., 100.))
logqs += arw_logv
kl_cost = logqs - logps
kl_cost, kl_obj = self.kl_sum(kl_cost)
z = F.concat([z, h_det])
z = F.elu(z)
z = self.down2(z)
if self.downsample:
output_shape = z.shape[2:]
x = F.resize_images(x, output_shape)
z = x + 0.1 * z
return z, kl_obj, kl_cost
def __call__(self, x):
h = F.elu(self.conv1(x))
h = F.max_pooling_2d(h, 3, stride=2)
h = self.res2(h, self.train)
h = self.res3(h, self.train)
h = self.res4(h, self.train)
h = self.res5(h, self.train)
h = F.spatial_pyramid_pooling_2d(h, 3, F.MaxPooling2D)
h = F.elu(self.conv2(h))
h = F.dropout(h, ratio=0.5)
h = self.conv3(h)
h = F.reshape(h, (-1, self.num_class))
return h
def self_attention(self, h, adj, step):
attention_layer_index = 0 if self.attention_tying else step
mask = np.sum(adj, axis=1)
mask[mask == 0] = -10000
# [mb, atoms, ch] -> [mb, ch, atoms]
mb, atoms, ch = h.shape
h = functions.transpose(h, axes=(0, 2, 1))
h = self.linear_transform_layer[attention_layer_index](h)
# [mb, 1, atoms]
f_1 = self.conv1d_layer_1[attention_layer_index](h)
# [mb, 1, atoms] -> [mb, atoms, 1]
f_1 = functions.transpose(f_1, axes=(0, 2, 1))
# [mb, atoms, 1] -> [mb, atoms, atoms]
f_1 = functions.tile(f_1, reps=(1, 1, atoms))
# [mb, 1, atoms]
f_2 = self.conv1d_layer_2[attention_layer_index](h)
# [mb, 1, atoms] -> [mb, atoms, atoms]
f_2 = functions.tile(f_2, reps=(1, atoms, 1))
logits = f_1 + f_2
# logits *= mask
# [mb, atoms, atoms]
coefs = functions.softmax(functions.leaky_relu(logits))
coefs = functions.transpose(coefs, axes=(0, 2, 1))
# [mb, ch, atoms] -> [mb, atoms, ch]
h = functions.transpose(h, axes=(0, 2, 1))
h = functions.dropout(
h, ratio=self.dropout_rate) if self.dropout_rate != 0.0 else h
# [mb, atoms, atoms] * [mb, atoms, ch]
vals = functions.matmul(coefs, h)
h = functions.elu(vals)
return h
def forward(self, ws, cs):
batchsize, length, max_word_len = cs.shape
ws = self.emb_word(ws) # (batch, length, word_dim)
cs = F.reshape(
F.max_pooling_2d(
self.conv_char(
F.reshape(
self.emb_char(cs),
(batchsize * length, 1, max_word_len, 50))), (max_word_len, 1)),
(batchsize, length, self.char_dim))
hs = F.transpose(F.concat([ws, cs], 2), (1, 0, 2))
hs = F.dropout(hs, self.dropout_ratio, train=self.train)
hs = F.split_axis(hs, length, 0)
hs_f = []
hs_b = []
self._init_state()
for h_in_f, h_in_b in zip(hs, reversed(hs)):
h_f = self.lstm_f2(self.lstm_f1(F.reshape(h_in_f, (batchsize, -1))))
hs_f.append(h_f)
h_b = self.lstm_b2(self.lstm_b1(F.reshape(h_in_b, (batchsize, -1))))
hs_b.append(h_b)
hs = [F.concat([h_f, h_b]) for h_f, h_b in zip(hs_f, reversed(hs_b))]
cat_ys = [self.linear_cat2(F.dropout(
F.elu(self.linear_cat1(h)), 0.5, train=self.train)) for h in hs]
hs = [F.reshape(h, (length, -1)) for h in \
F.split_axis(F.transpose(F.stack(hs, 2), (0, 2, 1)), batchsize, 0)]
dep_ys = [self.biaffine(
F.relu(F.dropout(self.linear_dep(h), 0.32, train=self.train)),
F.relu(F.dropout(self.linear_head(h), 0.32, train=self.train))) for h in hs]
return cat_ys, dep_ys
def __call__(self, x):
h = x
for iL in range(self.NPLayers):
h = self.__dict__["P%d" % iL](h)
if iL == 0: h = F.local_response_normalization(h)
h = F.max_pooling_2d(F.elu(h),
ksize=self.NKsize[iL + 1],
cover_all=True)
h = F.spatial_pyramid_pooling_2d(F.elu(h), 3, F.MaxPooling2D)
h = F.dropout(F.elu(self.L1(h)),
ratio=self.L1_dropout,
train=self.IsTrain)
h = F.elu(self.L2(h))
y = h
return y
def __call__(self, x, t):
h = F.elu(self.conv1(x))
h = F.max_pooling_2d(h, 3, stride=2)
p1 = self.score_pool1(h)
h = self.fire2(h)
h = self.fire3(h)
h = self.fire4(h)
h = F.max_pooling_2d(h, 3, stride=2)
u4 = self.upsample_pool4(self.score_pool4(h))
h = self.fire5(h)
h = self.fire6(h)
h = self.fire7(h)
h = self.fire8(h)
# h = F.max_pooling_2d(h, 3, stride=2)
h = self.fire9(h)
u9 = self.upsample_pool9(self.score_pool9(h))
h = F.concat((p1, u4, u9), axis=1)
h = self.add_layer(h)
h = self.upsample_final(h)
self.h = h
self.loss = F.softmax_cross_entropy(h, t)
self.evaluator.preparation(h, t)
self.accuracy = self.evaluator.get_accuracy()
self.iou = self.evaluator.get_iou()
return self.loss
def __call__(self, x, t):
x.volatile = not self.train
h = F.elu(self.conv1(x))
h = F.max_pooling_2d(h, 2, stride=2)
h = self.fire2(h)
h = self.fire3(h)
h = self.fire4(h)
h = F.max_pooling_2d(h, 2, stride=2)
h = self.fire5(h)
h = self.fire6(h)
h = self.fire7(h)
h = self.fire8(h)
h = F.max_pooling_2d(h, 2, stride=2)
h = self.fire9(h)
h = F.reshape(self.conv10(h), (len(x.data), self.n_class))
self.prob = F.softmax(h)
self.loss = F.softmax_cross_entropy(h, t)
self.accuracy = F.accuracy(h, t)
chainer.report({'loss': self.loss, 'accuracy': self.accuracy}, self)
return self.loss
def glimpse_net(self, glimpse, location):
# glimpse network includes next three nodes.
h_glimpse = F.max_pooling_2d(F.elu(self.emb_x(glimpse)), 2, stride=2)
# Location Encoding
h_location = F.elu(self.emb_l(location))
# g is the final glimpse feature vector
# equal to f_g(theta_g)
g_location = self.conv_loc_to_glimpse(h_location)
g_glimpse = F.elu( \
F.max_pooling_2d(self.conv_image_to_glimpse(h_glimpse), 2, stride=2))
g_glimpse = F.reshape(g_glimpse, (glimpse.data.shape[0],-1))
g = F.elu(g_location + g_glimpse)
return g
def masked_self_attention(self, input, adj, step):
adj = np.sum(adj, axis=1)
# [mb, atoms, ch]
mb, atoms, ch = input.shape
attention_layer_index = 0 if self.attention_tying else step
# [mb, atoms, hidden_dim]
h = functions.reshape(input, shape=(mb * atoms, ch))
h = self.linear_transform_layer[attention_layer_index](h)
h = functions.reshape(h, shape=(mb, atoms, -1))
# [mb, atoms, atoms, 2 * hidden_dim]
a_input = functions.concat([functions.tile(h, reps=(1, 1, atoms)).reshape(mb, atoms * atoms, -1),
functions.tile(h, reps=(1, atoms, 1))], axis=-1).reshape(mb, atoms, atoms,
2 * self.hidden_dim)
a_input = functions.reshape(a_input, shape=(mb * atoms * atoms, 2 * self.hidden_dim))
# [mb * atoms * atoms, 2 * hidden_dim] => [mb * atoms * atoms, 1] => [mb, atoms * atoms]
e = functions.leaky_relu(
functions.reshape(functions.squeeze(self.neural_network_layer[attention_layer_index](a_input), axis=-1),
shape=(mb, atoms, atoms)))
# [mb, atoms, atoms]
zero_vec = -9e15 * self.xp.ones_like(e, dtype=self.xp.float32)
# [mb, atoms, atoms]
attention = functions.where(adj > 0, e, zero_vec)
# [mb, atoms, atoms]
attention = functions.softmax(attention, axis=2)
# [mb, atoms, atoms] * [mb, atoms, hidden_dim] => [mb, atoms, hidden_dim]
h_prime = functions.matmul(attention, h)
h_prime = functions.elu(h_prime)
return h_prime
def forward(self, ws, ss, ps, dep_ts=None):
batchsize = len(ws)
xp = chainer.cuda.get_array_module(ws[0])
split = scanl(lambda x, y: x + y, 0, [w.shape[0] for w in ws])[1:-1]
wss = self.emb_word(F.hstack(ws))
sss = F.reshape(self.emb_suf(F.vstack(ss)), (-1, 4 * self.afix_dim))
pss = F.reshape(self.emb_prf(F.vstack(ps)), (-1, 4 * self.afix_dim))
ins = F.dropout(F.concat([wss, sss, pss]),
self.dropout_ratio,
train=self.train)
xs_f = list(F.split_axis(ins, split, 0))
xs_b = [x[::-1] for x in xs_f]
cx_f, hx_f, cx_b, hx_b = self._init_state(xp, batchsize)
_, _, hs_f = self.lstm_f(hx_f, cx_f, xs_f, train=self.train)
_, _, hs_b = self.lstm_b(hx_b, cx_b, xs_b, train=self.train)
hs_b = [x[::-1] for x in hs_b]
# ys: [(sentence length, number of category)]
hs = [F.concat([h_f, h_b]) for h_f, h_b in zip(hs_f, hs_b)]
dep_ys = [
self.biaffine_arc(
F.elu(F.dropout(self.arc_dep(h), 0.32, train=self.train)),
F.elu(F.dropout(self.arc_head(h), 0.32, train=self.train)))
for h in hs
]
# if dep_ts is not None and random.random >= 0.5:
if dep_ts is not None:
heads = dep_ts
else:
heads = [F.argmax(y, axis=1) for y in dep_ys]
heads = F.elu(F.dropout(
self.rel_head(
F.vstack([F.embed_id(t, h, ignore_label=IGNORE) \
for h, t in zip(hs, heads)])),
0.32, train=self.train))
childs = F.elu(
F.dropout(self.rel_dep(F.vstack(hs)), 0.32, train=self.train))
cat_ys = self.biaffine_tag(childs, heads)
cat_ys = list(F.split_axis(cat_ys, split, 0))
return cat_ys, dep_ys
def __call__(self, x, t=None):
self.clear()
x.volatile = not self.train
t.volatile = 'AUTO'
h = F.elu(self.conv1(x))
h = F.max_pooling_2d(h, 3, stride=2)
h = self.fire2(h)
h = self.fire3(h)
h = self.fire4(h)
h = F.max_pooling_2d(h, 3, stride=2)
h = self.fire5(h)
h = self.fire6(h)
h = self.fire7(h)
h = self.fire8(h)
h = F.spatial_pyramid_pooling_2d(h, 3, F.MaxPooling2D)
h = F.elu(self.conv9(h))
memory_h = chainer.Variable(h.data, volatile='AUTO')
with chainer.no_backprop_mode():
weight, self.memory = \
self.apply_memory(memory_h, t, self.update_weight, self.train)
if self.train:
self.apply_memory.memory.data = self.memory.data
h = F.dropout(h, ratio=0.5, train=self.train)
h = self.conv_infer(h)
h = F.reshape(h, (-1, self.n_class))
h = h*weight
self.h = h
self.prob = F.softmax(h)
if self.active_learn:
t = mask_gt_for_active_learning(self.prob, t, self.xp, self.n_class)
self.loss = F.softmax_cross_entropy(h, t)
self.accuracy = F.accuracy(h, t)
chainer.report({'loss': self.loss, 'accuracy': self.accuracy}, self)
return self.loss
def forward_up(self, x):
"""
"""
h = F.elu(x)
h = self.up1(h)
sections = [self.z_dim, self.z_dim*2, self.z_dim*2+self.h_dim]
self.qz_mean, self.qz_logv, self.up_context, h = \
F.split_axis(h, sections, axis=1)
h = F.elu(h)
h = self.up2(h)
if self.downsample:
output_shape = h.shape[2:]
x = F.resize_images(x, output_shape)
return x + 0.1 * h
def check_forward(self, x_data):
x = chainer.Variable(x_data)
y = functions.elu(x, alpha=self.alpha)
self.assertEqual(y.data.dtype, numpy.float32)
expected = self.x.copy()
for i in numpy.ndindex(self.x.shape):
if self.x[i] < 0:
expected[i] = self.alpha * (numpy.exp(expected[i]) - 1)
gradient_check.assert_allclose(expected, y.data)
def check_backward(self, x_data, y_grad):
x = chainer.Variable(x_data)
y = functions.elu(x, alpha=self.alpha)
y.grad = y_grad
y.backward()
func = y.creator
f = lambda: func.forward((x.data,))
gx, = gradient_check.numerical_grad(f, (x.data,), (y.grad,))
gradient_check.assert_allclose(gx, x.grad)
def __call__(self, x):
h = x
h = self.__dict__["P1_1"](F.elu(h))
h = self.__dict__["BN1_1"](h)
h = self.__dict__["P1_2"](F.elu(h))
h = self.__dict__["BN1_2"](h)
h = F.max_pooling_2d(F.elu(h), ksize=3, stride=2, cover_all=False)
h = self.__dict__["P2_1"](h)
h = self.__dict__["P2_2"](F.elu(h))
h = self.__dict__["P2_2"](F.elu(h))
h = F.max_pooling_2d(F.elu(h), ksize=3, stride=2, cover_all=False)
h = self.__dict__["P3_1"](h)
h = self.__dict__["P3_2"](F.elu(h))
h = self.__dict__["P3_3"](F.elu(h))
h = F.average_pooling_2d(F.elu(h), ksize=6)
y = F.reshape(h,(len(h.data),self.F_unit))
return y
def check_forward(self, x_data):
x = chainer.Variable(x_data)
y = functions.elu(x, alpha=self.alpha)
self.assertEqual(y.data.dtype, self.dtype)
expected = self.x.copy()
for i in numpy.ndindex(self.x.shape):
if self.x[i] < 0:
expected[i] = self.alpha * (numpy.exp(expected[i]) - 1)
testing.assert_allclose(
expected, y.data, **self.check_forward_options)
def __call__(self, x):
h = add_noise(x)
h = F.elu(add_noise(self.c0_0(h)))
h = F.elu(add_noise(self.bn0_1(self.c0_1(h))))
h = F.elu(add_noise(self.bn1_0(self.c1_0(h))))
h = F.elu(add_noise(self.bn1_1(self.c1_1(h))))
h = F.elu(add_noise(self.bn2_0(self.c2_0(h))))
h = F.elu(add_noise(self.bn2_1(self.c2_1(h))))
h = F.elu(add_noise(self.bn3_0(self.c3_0(h))))
return self.l4(h)
def __call__(self, x):
h = self.b0(x,test=not self.train)
h = self.b1_1(F.elu(self.c1_1(h)),test=not self.train)
h = self.b1_2(F.elu(self.c1_2(h)),test=not self.train)
h = F.max_pooling_2d(h,2,stride=2)
h = self.b2_2(F.elu(self.c2_1(h)),test=not self.train)
h = self.b2_2(F.elu(self.c2_2(h)),test=not self.train)
h = F.max_pooling_2d(h,2,stride=2)
h = self.b3_1(F.elu(self.c3_1(h)),test=not self.train)
h = self.b3_2(F.elu(self.c3_2(h)),test=not self.train)
h = F.max_pooling_2d(h,2,stride=2)
#print h.data
h = F.dropout(F.elu(self.f1(h)),train=self.train)
#print h.data
return self.f2(h)
def __call__(self, x): return F.elu(x, self.alpha)
def __call__(self, x, test=False):
h = F.elu(self.c0(x)) # no bn because images from generator will katayotteru?
h = F.elu(self.bn1(self.c1(h), test=test))
h = F.elu(self.bn2(self.c2(h), test=test))
h = F.elu(self.bn3(self.c3(h), test=test))
return self.l4l(h)
def __call__(self, vector):
vector = self.l1(vector)
vector = F.elu(vector)
vector = self.l2(vector)
return vector
def __call__(self, sentence):
self.fwd.reset_state()
fwds = map(self.fwd, sentence)
self.bwd.reset_state()
bwds = reversed(map(self.bwd, reversed(sentence)))
return [F.elu(self.mix(f, b)) for f, b in zip(fwds, bwds)]
def f(x):
y = functions.elu(x, alpha=self.alpha)
return y * y
def forward(self, inputs, device):
x, = inputs
return functions.elu(x, alpha=self.alpha),
def __call__(self, x): return functions.elu(x, self.alpha)
def f(x):
return functions.elu(x, alpha=self.alpha)
