def gen_function_partial(self, layer, H, w, g, b, u, s, w2, g2, b2, u2, s2, w3, g3, b3, u3, s3, w4, g4, b4, u4, s4, wx):
if layer==1:
h = H
x2, updates2 = running_batchnorm(deconv(h, w2, subsample=(2, 2), border_mode=(2, 2)), g=g2, b=b2,
running_u=u2, running_s=s2, momentum=self.bn_momentum, test_mode=True)
if layer<=2:
if layer==2:
h2 = H
else:
h2 = relu(x2)
x3, updates3 = running_batchnorm(deconv(h2, w3, subsample=(2, 2), border_mode=(2, 2)), g=g3, b=b3,
running_u=u3, running_s=s3, momentum=self.bn_momentum, test_mode=True)
if layer<=3:
if layer==3:
h3 = H
else:
h3 = relu(x3)
x4, updates4 = running_batchnorm(deconv(h3, w4, subsample=(2, 2), border_mode=(2, 2)), g=g4, b=b4,
running_u=u4, running_s=s4, momentum=self.bn_momentum, test_mode=True)
if layer==4:
h4 = H
else:
h4 = relu(x4)
x = tanh(deconv(h4, wx, subsample=self.visible_subsamp, border_mode=self.visible_bmode))
return x
def gen(Z, w, g, b, w2, g2, b2, w3, g3, b3,wx):
h0 = relu(batchnorm(T.dot(Z, w), g=g, b=b))
h0 = h0.reshape((h0.shape[0], ngf*4, 2, 2))
h1 = relu(batchnorm(deconv(h0, w2, subsample=(2, 2), border_mode=(2, 2)), g=g2, b=b2))
h2 = relu(batchnorm(deconv(h1, w3, subsample=(2, 2), border_mode=(2, 2)), g=g3, b=b3))
x = tanh(deconv(h2, wx, subsample=(2, 2), border_mode=(2, 2)))
return x
def gen_test_tanh(_z, _params, _pls, n_layers=3, n_f=128, init_sz=4):
tan_z = tanh(_z)
[gw0, gg0, gb0] = _params[0:3]
hs = []
u = _pls[0]
s = _pls[n_layers + 1]
h0 = relu(
batchnorm(T.dot(T.clip(tan_z, -1.0, 1.0), gw0), u=u, s=s, g=gg0,
b=gb0))
h1 = h0.reshape((h0.shape[0], n_f * 2**n_layers, init_sz, init_sz))
hs.extend([h0, h1])
for n in range(n_layers):
[w, g, b] = _params[3 * (n + 1):3 * (n + 2)]
hin = hs[-1]
u = _pls[n + 1]
s = _pls[n + n_layers + 2]
hout = relu(
batchnorm(deconv(hin, w, subsample=(2, 2), border_mode=(2, 2)),
u=u,
s=s,
g=g,
b=b))
hs.append(hout)
x = tanh(deconv(hs[-1], _params[-1], subsample=(2, 2), border_mode=(2, 2)))
return x
def decoder( z, w1, g1, b1, w2, g2, b2, w3, g3, b3, w4, g4, b4, w5 ):
h1 = relu( batchnorm( T.dot( z, w1 ), g = g1, b = b1 ) )
h1 = h1.reshape( (h1.shape[ 0 ], nf * 8, 4, 4 ) )
h2 = relu( batchnorm( deconv( h1, w2, subsample = ( 2, 2 ), border_mode = ( 2, 2 ) ), g = g2, b = b2 ) )
h3 = relu( batchnorm( deconv( h2, w3, subsample = ( 2, 2 ), border_mode = ( 2, 2 ) ), g = g3, b = b3 ) )
h4 = relu( batchnorm( deconv( h3, w4, subsample = ( 2, 2 ), border_mode = ( 2, 2 ) ), g = g4, b = b4 ) )
t = tanh( deconv( h4, w5, subsample = ( 2, 2 ), border_mode = ( 2, 2 ) ) )
return t
def gen(Z, w, w2, w3, gwx):
h = relu(batchnorm(T.dot(Z, w)))
h2 = relu(batchnorm(T.dot(h, w2)))
h2 = h2.reshape((h2.shape[0], ngf * 2, 7, 7))
h3 = relu(batchnorm(deconv(h2, w3, subsample=(2, 2), border_mode=(2, 2))))
x = sigmoid(deconv(h3, gwx, subsample=(2, 2), border_mode=(2, 2)))
return x
def gen(Z, w, g, b, w2, g2, b2, w3, g3, b3, w4, g4, b4, wx):
h = relu(batchnorm(T.dot(Z, w), g=g, b=b))
h = h.reshape((h.shape[0], ngf*8, 4, 4))
h2 = relu(batchnorm(deconv(h, w2, subsample=(2, 2), border_mode=(2, 2)), g=g2, b=b2))
h3 = relu(batchnorm(deconv(h2, w3, subsample=(2, 2), border_mode=(2, 2)), g=g3, b=b3))
h4 = relu(batchnorm(deconv(h3, w4, subsample=(2, 2), border_mode=(2, 2)), g=g4, b=b4))
x = tanh(deconv(h4, wx, subsample=(2, 2), border_mode=(2, 2)))
return x
def gen(Z, w, g, b, w2, g2, b2, w3, g3, b3, w4, g4, b4, wx):
h = relu(batchnorm(T.dot(Z, w), g=g, b=b))
h = h.reshape((h.shape[0], ngf*8, 4, 4))
h2 = relu(batchnorm(deconv(h, w2, subsample=(2, 2), border_mode=(2, 2)), g=g2, b=b2))
h3 = relu(batchnorm(deconv(h2, w3, subsample=(2, 2), border_mode=(2, 2)), g=g3, b=b3))
h4 = relu(batchnorm(deconv(h3, w4, subsample=(2, 2), border_mode=(2, 2)), g=g4, b=b4))
x = tanh(deconv(h4, wx, subsample=(2, 2), border_mode=(2, 2)))
return x
def generator_function(hidden_data, is_train=True):
h0_0 = relu(batchnorm(X=T.dot(hidden_data, linear_w0_0), g=bn_w0_0, b=bn_b0_0))
h0_1 = relu(batchnorm(X=T.dot(h0_0, linear_w0_1), g=bn_w0_1, b=bn_b0_1))
h0 = h0_1.reshape((h0_1.shape[0], num_gen_filters0, init_image_size, init_image_size))
h1 = relu(batchnorm(deconv(h0, conv_w1, subsample=(2, 2), border_mode=(2, 2)), g=bn_w1, b=bn_b1))
h2 = relu(batchnorm(deconv(h1, conv_w2, subsample=(2, 2), border_mode=(2, 2)), g=bn_w2, b=bn_b2))
h3 = relu(batchnorm(deconv(h2, conv_w3, subsample=(2, 2), border_mode=(2, 2)), g=bn_w3, b=bn_b3))
output = tanh(deconv(h3, conv_w4, subsample=(2, 2), border_mode=(2, 2))+conv_b4.dimshuffle('x', 0, 'x', 'x'))
return output
def converter( Z, w5d, g5d, b5d, w4d, g4d, b4d, w3d, g3d, b3d, w2d, g2d, b2d, w1d ):
h5d = relu( batchnorm( dnn_conv( Z, w5d, subsample = ( 1, 1 ), border_mode = ( 0, 0 ) ), g = g5d, b = b5d ) )
h5d = h5d.reshape( ( h5d.shape[ 0 ], nf * 8, 4, 4 ) )
h4d = relu( batchnorm( deconv( h5d, w4d, subsample = ( 2, 2 ), border_mode = ( 2, 2 ) ), g = g4d, b = b4d ) )
h3d = relu( batchnorm( deconv( h4d, w3d, subsample = ( 2, 2 ), border_mode = ( 2, 2 ) ), g = g3d, b = b3d ) )
h2d = relu( batchnorm( deconv( h3d, w2d, subsample = ( 2, 2 ), border_mode = ( 2, 2 ) ), g = g2d, b = b2d ) )
h1d = tanh( deconv( h2d, w1d, subsample = ( 2, 2 ), border_mode = ( 2, 2 ) ) )
y = h1d
return y
def gen(Z, w, w2, w3, wx, use_batchnorm=True):
if use_batchnorm:
batchnorm_ = batchnorm
else:
batchnorm_ = lambda x:x
h = relu(batchnorm_(T.dot(Z, w)))
h2 = relu(batchnorm_(T.dot(h, w2)))
h2 = h2.reshape((h2.shape[0], ngf*2, 7, 7))
h3 = relu(batchnorm_(deconv(h2, w3, subsample=(2, 2), border_mode=(2, 2))))
x = sigmoid(deconv(h3, wx, subsample=(2, 2), border_mode=(2, 2)))
return x
def generator_function(hidden_data, is_train=True):
# layer 0 (linear)
h0 = relu(batchnorm(X=T.dot(hidden_data, linear_w0), g=linear_bn_w0, b=linear_bn_b0))
h0 = h0.reshape((h0.shape[0], num_gen_filters0, init_image_size, init_image_size))
# layer 1 (deconv)
h1 = relu(batchnorm(deconv(h0, conv_w1, subsample=(2, 2), border_mode=(2, 2)), g=conv_bn_w1, b=conv_bn_b1))
# layer 2 (deconv)
h2 = relu(batchnorm(deconv(h1, conv_w2, subsample=(2, 2), border_mode=(2, 2)), g=conv_bn_w2, b=conv_bn_b2))
# layer 3 (deconv)
output = tanh(deconv(h2, conv_w3, subsample=(2, 2), border_mode=(2, 2))+conv_b3.dimshuffle('x', 0, 'x', 'x'))
return output
def gen(Z, Y, w, w2, w3, wx):
yb = Y.dimshuffle(0, 1, 'x', 'x')
Z = T.concatenate([Z, Y], axis=1)
h = relu(batchnorm(T.dot(Z, w)))
h = T.concatenate([h, Y], axis=1)
h2 = relu(batchnorm(T.dot(h, w2)))
h2 = h2.reshape((h2.shape[0], ngf * 2, temp, temp))
h2 = conv_cond_concat(h2, yb)
h3 = relu(batchnorm(deconv(h2, w3, subsample=(2, 2), border_mode=(2, 2))))
h3 = conv_cond_concat(h3, yb)
x = sigmoid(deconv(h3, wx, subsample=(2, 2), border_mode=(2, 2)))
return x
def gen(Z, Y, w, w2, w3, wx):
yb = Y.dimshuffle(0, 1, 'x', 'x')
Z = T.concatenate([Z, Y], axis=1)
h = relu(batchnorm(T.dot(Z, w)))
h = T.concatenate([h, Y], axis=1)
h2 = relu(batchnorm(T.dot(h, w2)))
h2 = h2.reshape((h2.shape[0], ngf*2, npx_, npx_))
h2 = conv_cond_concat(h2, yb)
h3 = relu(batchnorm(deconv(h2, w3, subsample=(2, 2), border_mode=(2, 2))))
h3 = conv_cond_concat(h3, yb)
x = sigmoid(deconv(h3, wx, subsample=(2, 2), border_mode=(2, 2)))
return x
def generator_function(hidden_data, is_train=True):
# layer 0 (linear)
h0 = tanh(entropy_exp(X=T.dot(hidden_data, linear_w0), g=linear_bn_w0, b=linear_bn_b0))
h0 = h0.reshape((h0.shape[0], num_gen_filters0, init_image_size, init_image_size))
# layer 1 (deconv)
h1 = tanh(entropy_exp(deconv(h0, conv_w1, subsample=(2, 2), border_mode=(2, 2)), g=conv_bn_w1, b=conv_bn_b1))
# layer 2 (deconv)
h2 = tanh(entropy_exp(deconv(h1, conv_w2, subsample=(2, 2), border_mode=(2, 2)), g=conv_bn_w2, b=conv_bn_b2))
# layer 3 (deconv)
h3 = tanh(entropy_exp(deconv(h2, conv_w3, subsample=(2, 2), border_mode=(2, 2)), g=conv_bn_w3, b=conv_bn_b3))
# layer 4 (deconv)
output = tanh(deconv(h3, conv_w4, subsample=(2, 2), border_mode=(2, 2)) + conv_b4.dimshuffle("x", 0, "x", "x"))
return output
def gen(Z, Y, w, w2, w3, wx):
#Z: (nbatch, nz) = (128, 100)
#Y: (nbatch, ny) = (128, 10)
#w: (nz+ny, ngfc) = (110, 1024)
#w2: (ngfc+ny, ngf*2*7*7) = (1024+10, 64*2*7*7) = (1034, 6272)
#w3: (ngf*2+ny, ngf, 5, 5) = (128+10, 64, 5, 5 ) = (138, 64, 5, 5)
#wx: (ngf+ny, nc, 5, 5) = (64+10, 1, 5, 5) = (74, 1, 5, 5)
print '\n@@@@ gen()'
printVal('Y', Y)
printVal('w', w) #matrix
printVal('w2', w2) #matrix
printVal('w3', w3) #tensor
printVal('wx', wx) #tensor
# Yの要素の並びの入れ替え。数字の引数は、次元番号。'x' は ブロードキャスト
#(G1)
yb = Y.dimshuffle(0, 1, 'x', 'x')
# yb は４次元テンソル
printVal('yb', yb)
# 行列 Z と Y を結合（横方向）:いわゆる Conditional GAN の形にする。
#(G2)
Z = T.concatenate([Z, Y], axis=1) # Z: (128, 110)
#(G3)
# Z*w をバッチ正規化して、ReLU 適用
t1 = T.dot(Z, w) #full connect : t1: (128, 1024)
printVal('t1', t1)
h = relu(batchnorm(t1))
# h: (128, 1024)
#(G4)
h = T.concatenate([h, Y], axis=1) # h: (128, 1034)
#(G5)
h2 = relu(batchnorm(T.dot(h, w2) #NOT full connect
))
#(G6)
h2 = h2.reshape((h2.shape[0], ngf * 2, 7, 7))
#(G7)
h3, yb2 = conv_cond_concat2(h2, yb) #XXX
#(G8)デコンボリューション:論文によれば、空間プーリングの代わりに適用する
d = deconv(h3, w3, subsample=(2, 2), border_mode=(2, 2))
printVal('d', d) # (128, 64, 14, 14)
#h3 = relu(batchnorm(deconv(h2, w3, subsample=(2, 2), border_mode=(2, 2))))
#(G9)
h4 = relu(batchnorm(d))
#(G10)
h5, yb3 = conv_cond_concat2(h4, yb)
#(G11)
x = sigmoid(deconv(h5, wx, subsample=(2, 2), border_mode=(2, 2)))
return x, yb, yb2, d, h3, h5
def converter( IS, w1, w2, g2, b2, w3, g3, b3, w4, g4, b4, w5, g5, b5,
w5d, g5d, b5d, w4d, g4d, b4d, w3d, g3d, b3d, w2d, g2d, b2d, w1d ):
h1 = lrelu( dnn_conv( IS, w1, subsample = ( 2, 2 ), border_mode = ( 2, 2 ) ) )
h2 = lrelu( batchnorm( dnn_conv( h1, w2, subsample = ( 2, 2 ), border_mode = ( 2, 2 ) ), g = g2, b = b2 ) )
h3 = lrelu( batchnorm( dnn_conv( h2, w3, subsample = ( 2, 2 ), border_mode = ( 2, 2 ) ), g = g3, b = b3 ) )
h4 = lrelu( batchnorm( dnn_conv( h3, w4, subsample = ( 2, 2 ), border_mode = ( 2, 2 ) ), g = g4, b = b4 ) )
h5 = lrelu( batchnorm( dnn_conv( h4, w5, subsample = ( 1, 1 ), border_mode = ( 0, 0 ) ), g = g5, b = b5 ) )
h5d = relu( batchnorm( dnn_conv( h5, w5d, subsample = ( 1, 1 ), border_mode = ( 0, 0 ) ), g = g5d, b = b5d ) )
h5d = h5d.reshape( ( h5d.shape[0], nf * 8, 4, 4 ) )
h4d = relu( batchnorm( deconv( h5d, w4d, subsample = ( 2, 2 ), border_mode = ( 2, 2 ) ), g = g4d, b = b4d ) )
h3d = relu( batchnorm( deconv( h4d, w3d, subsample = ( 2, 2 ), border_mode = ( 2, 2 ) ), g = g3d, b = b3d ) )
h2d = relu( batchnorm( deconv( h3d, w2d, subsample = ( 2, 2 ), border_mode = ( 2, 2 ) ), g = g2d, b = b2d ) )
h1d = tanh( deconv( h2d, w1d, subsample = ( 2, 2 ), border_mode = ( 2, 2 ) ) )
y = h1d
return y
def gen_function(self, test_mode, Z, w, g, b, u, s, w2, g2, b2, u2, s2, w3, g3, b3, u3, s3, w4, g4, b4, u4, s4, wx):
x1, updates1 = running_batchnorm(T.dot(Z, w), g=g, b=b, running_u=u, running_s=s, momentum=self.bn_momentum,
test_mode=test_mode)
h = relu(x1)
h = h.reshape((h.shape[0], self.ngf*16, self.last_shape[0], self.last_shape[1]))
x2, updates2 = running_batchnorm(deconv(h, w2, subsample=(2, 2), border_mode=(2, 2)), g=g2, b=b2,
running_u=u2, running_s=s2, momentum=self.bn_momentum, test_mode=test_mode)
h2 = relu(x2)
x3, updates3 = running_batchnorm(deconv(h2, w3, subsample=(2, 2), border_mode=(2, 2)), g=g3, b=b3,
running_u=u3, running_s=s3, momentum=self.bn_momentum, test_mode=test_mode)
h3 = relu(x3)
x4, updates4 = running_batchnorm(deconv(h3, w4, subsample=(2, 2), border_mode=(2, 2)), g=g4, b=b4,
running_u=u4, running_s=s4, momentum=self.bn_momentum, test_mode=test_mode)
h4 = relu(x4)
x = tanh(deconv(h4, wx, subsample=self.visible_subsamp, border_mode=self.visible_bmode))
return x, updates1 + updates2 + updates3 + updates4
def decoder_function(hidden_data):
# layer 0 (linear)
h0 = T.dot(hidden_data, linear_w0) + linear_b0
h0 = h0.reshape((h0.shape[0], num_gen_filters0, init_image_size, init_image_size))
# layer 1 (deconv)
h1 = deconv(relu(h0), conv_w1, subsample=(2, 2), border_mode=(2, 2)) + conv_b1.dimshuffle("x", 0, "x", "x")
# layer 2 (deconv)
h2 = deconv(relu(h1), conv_w2, subsample=(2, 2), border_mode=(2, 2)) + conv_b2.dimshuffle("x", 0, "x", "x")
# layer 3 (deconv)
h3 = deconv(relu(h2), conv_w3, subsample=(2, 2), border_mode=(2, 2)) + conv_b3.dimshuffle("x", 0, "x", "x")
# layer_output (deconv)
h4 = deconv(relu(h3), conv_w4, subsample=(2, 2), border_mode=(2, 2)) + conv_b4.dimshuffle("x", 0, "x", "x")
output = tanh(h4)
return [
[hidden_data, T.flatten(h0, 2), T.flatten(h1, 2), T.flatten(h2, 2), T.flatten(h3, 2), T.flatten(h4, 2)],
output,
]
def decoder_feature_function(hidden_data):
# layer 0 (linear)
h0 = T.dot(hidden_data, linear_w0) + linear_b0
h0 = h0.reshape((h0.shape[0], num_gen_filters0, init_image_size, init_image_size))
# layer 1 (deconv)
h1 = deconv(relu(h0), conv_w1, subsample=(2, 2), border_mode=(2, 2)) + conv_b1.dimshuffle('x', 0, 'x', 'x')
# layer 2 (deconv)
h2 = deconv(relu(h1), conv_w2, subsample=(2, 2), border_mode=(2, 2)) + conv_b2.dimshuffle('x', 0, 'x', 'x')
# layer 3 (deconv)
h3 = deconv(relu(h2), conv_w3, subsample=(2, 2), border_mode=(2, 2)) + conv_b3.dimshuffle('x', 0, 'x', 'x')
# feature
feature = relu(h3)
return [[T.flatten(h0,2),
T.flatten(h1,2),
T.flatten(h2,2),
T.flatten(h3,2)],
feature]
def gen_postlearn(_z, _params, n_layers=3, n_f=128, init_sz=4):
output = []
[gw0, gg0, gb0] = _params[0:3]
hs = []
h0_o = T.dot(_z, gw0)
output = [h0_o]
h0 = relu(batchnorm(h0_o, g=gg0, b=gb0))
h1 = h0.reshape((h0.shape[0], n_f * 2**n_layers, init_sz, init_sz))
hs.extend([h0, h1])
for n in range(n_layers):
[w, g, b] = _params[3 * (n + 1):3 * (n + 2)]
hin = hs[-1]
h_o = deconv(hin, w, subsample=(2, 2), border_mode=(2, 2))
hout = relu(batchnorm(h_o, g=g, b=b))
hs.append(hout)
output.append(h_o)
x = tanh(deconv(hs[-1], _params[-1], subsample=(2, 2), border_mode=(2, 2)))
return x, output
def gen(Z, Y):
yb = Y.dimshuffle(0, 1, 'x', 'x')
Z = T.concatenate([Z, Y], axis=1)
h = relu(batchnorm(T.dot(Z, gw), g=gg, b=gb))
h = h.reshape((h.shape[0], ngf * 4, 4, 4))
h = conv_cond_concat(h, yb)
h2 = relu(
batchnorm(deconv(h, gw2, subsample=(2, 2), border_mode=(2, 2)),
g=gg2,
b=gb2))
h2 = conv_cond_concat(h2, yb)
h3 = relu(
batchnorm(deconv(h2, gw3, subsample=(2, 2), border_mode=(2, 2)),
g=gg3,
b=gb3))
h3 = conv_cond_concat(h3, yb)
x = tanh(deconv(h3, gw4, subsample=(2, 2), border_mode=(2, 2)))
return x
def generator_function(hidden_data, is_train=True):
# layer 0 (linear)
h0 = T.dot(hidden_data, linear_w0)
h0 = h0 + t_rng.normal(size=h0.shape, std=0.01, dtype=t_floatX)
h0 = relu(batchnorm(X=h0, g=linear_bn_w0, b=linear_bn_b0))
h0 = h0.reshape((h0.shape[0], num_gen_filters0, init_image_size, init_image_size))
# layer 1 (deconv)
h1 = deconv(h0, conv_w1, subsample=(2, 2), border_mode=(2, 2))
h1 = h1 + t_rng.normal(size=h1.shape, std=0.01, dtype=t_floatX)
h1 = relu(batchnorm(h1, g=conv_bn_w1, b=conv_bn_b1))
# layer 2 (deconv)
h2 = deconv(h1, conv_w2, subsample=(2, 2), border_mode=(2, 2))
h2 = h2 + t_rng.normal(size=h2.shape, std=0.01, dtype=t_floatX)
h2 = relu(batchnorm(h2, g=conv_bn_w2, b=conv_bn_b2))
# layer 3 (deconv)
h3 = deconv(h2, conv_w3, subsample=(2, 2), border_mode=(2, 2))
h3 = h3 + t_rng.normal(size=h3.shape, std=0.01, dtype=t_floatX)
h3 = relu(batchnorm(h3, g=conv_bn_w3, b=conv_bn_b3))
# layer 4 (deconv)
output = tanh(deconv(h3, conv_w4, subsample=(2, 2), border_mode=(2, 2))+conv_b4.dimshuffle('x', 0, 'x', 'x'))
return output
def gen(_z, _params, n_layers=3, n_f=128, init_sz=4, nc=3):
[gw0, gg0, gb0] = _params[0:3]
hs = []
h0 = relu(batchnorm(T.dot(_z, gw0), g=gg0, b=gb0))
h1 = h0.reshape((h0.shape[0], n_f * 2**n_layers, init_sz, init_sz))
hs.extend([h0, h1])
for n in range(n_layers):
[w, g, b] = _params[3 * (n + 1):3 * (n + 2)]
hin = hs[-1]
hout = relu(
batchnorm(deconv(hin, w, subsample=(2, 2), border_mode=(2, 2)),
g=g,
b=b))
hs.append(hout)
x = deconv(hs[-1], _params[-1], subsample=(2, 2), border_mode=(2, 2))
if nc == 3:
x_f = tanh(x)
if nc == 1:
x_f = sigmoid(x)
return x_f
def gen_test(_z,
_params,
_batchnorm,
n_layers=3,
n_f=128,
init_sz=4,
nc=3,
use_tanh=False):
if use_tanh:
_z = tanh(_z)
# gw0 : weight of dense layer(0)
# gg0 , gb0 : params of batchnorm layer
[gw0, gg0, gb0] = _params[0:3]
hs = []
u = _batchnorm[0]
s = _batchnorm[n_layers + 1]
# Clip z => Dense => BatchNorm => ReLU
h0 = relu(
batchnorm(T.dot(T.clip(_z, -1.0, 1.0), gw0), u=u, s=s, g=gg0, b=gb0))
# reshape to 4D
h1 = h0.reshape((h0.shape[0], n_f * 2**n_layers, init_sz, init_sz))
hs.extend([h0, h1])
for n in range(n_layers):
[w, g, b] = _params[3 * (n + 1):3 * (n + 2)]
hin = hs[-1]
u = _batchnorm[n + 1]
s = _batchnorm[n + n_layers + 2]
hout = relu(
batchnorm(deconv(hin, w, subsample=(2, 2), border_mode=(2, 2)),
u=u,
s=s,
g=g,
b=b))
hs.append(hout)
x = deconv(hs[-1], _params[-1], subsample=(2, 2), border_mode=(2, 2))
if nc == 3:
x_f = tanh(x)
if nc == 1:
x_f = sigmoid(x)
return x_f
def gen(Z, w, g, b, w2, g2, b2, w3, g3, b3, w4, g4, b4, w5, g5, b5, w6, g6, b6,
wx):
h = relu(batchnorm(T.dot(Z, w), g=g, b=b))
h = h.reshape((h.shape[0], ngf * 4, 4, 4))
h2 = relu(
batchnorm(deconv(h, w2, subsample=(2, 2), border_mode=(1, 1)),
g=g2,
b=b2))
h3 = relu(
batchnorm(deconv(h2, w3, subsample=(1, 1), border_mode=(1, 1)),
g=g3,
b=b3))
h4 = relu(
batchnorm(deconv(h3, w4, subsample=(2, 2), border_mode=(1, 1)),
g=g4,
b=b4))
h5 = relu(
batchnorm(deconv(h4, w5, subsample=(1, 1), border_mode=(1, 1)),
g=g5,
b=b5))
h6 = relu(
batchnorm(deconv(h5, w6, subsample=(2, 2), border_mode=(1, 1)),
g=g6,
b=b6))
x = tanh(deconv(h6, wx, subsample=(1, 1), border_mode=(1, 1)))
return x
def sample_generator(hidden_data):
# linear stage (hidden_size => 2x2x512)
seed = T.dot(hidden_data, linear_w0) + linear_b0
seed = seed.reshape((seed.shape[0], num_gen_filters0, init_image_size, init_image_size))
seed = relu(seed)
# deconv stage 0 (2x2x512=>4x4x512=>4x4x512=>4x4x512)
h0_0 = deconv( seed, conv_w0_0, subsample=(2, 2), border_mode=(1, 1))+conv_b0_0.dimshuffle('x', 0, 'x', 'x')
h0_1 = dnn_conv(relu(h0_0), conv_w0_1, subsample=(1, 1), border_mode=(1, 1))+conv_b0_1.dimshuffle('x', 0, 'x', 'x')
h0_2 = dnn_conv(relu(h0_1), conv_w0_2, subsample=(1, 1), border_mode=(1, 1))+conv_b0_2.dimshuffle('x', 0, 'x', 'x')
# deconv stage 1 (4x4x512=>8x8x512=>8x8x512=>8x8x512)
h1_0 = deconv(relu(h0_2), conv_w1_0, subsample=(2, 2), border_mode=(1, 1))+conv_b1_0.dimshuffle('x', 0, 'x', 'x')
h1_1 = dnn_conv(relu(h1_0), conv_w1_1, subsample=(1, 1), border_mode=(1, 1))+conv_b1_1.dimshuffle('x', 0, 'x', 'x')
h1_2 = dnn_conv(relu(h1_1), conv_w1_2, subsample=(1, 1), border_mode=(1, 1))+conv_b1_2.dimshuffle('x', 0, 'x', 'x')
# deconv stage 2 (8x8x512=>16x16x256=>16x16x256=>16x16x256)
h2_0 = deconv(relu(h1_2), conv_w2_0, subsample=(2, 2), border_mode=(1, 1))+conv_b2_0.dimshuffle('x', 0, 'x', 'x')
h2_1 = dnn_conv(relu(h2_0), conv_w2_1, subsample=(1, 1), border_mode=(1, 1))+conv_b2_1.dimshuffle('x', 0, 'x', 'x')
h2_2 = dnn_conv(relu(h2_1), conv_w2_2, subsample=(1, 1), border_mode=(1, 1))+conv_b2_2.dimshuffle('x', 0, 'x', 'x')
# deconv stage 3 (16x16x256=>32x32x128=>32x32x128)
h3_0 = deconv(relu(h2_2), conv_w3_0, subsample=(2, 2), border_mode=(1, 1))+conv_b3_0.dimshuffle('x', 0, 'x', 'x')
h3_1 = dnn_conv(relu(h3_0), conv_w3_1, subsample=(1, 1), border_mode=(1, 1))+conv_b3_1.dimshuffle('x', 0, 'x', 'x')
# deconv stage 4 (32x32x128=>64x64x64=>64x64x64)
h4_0 = deconv(relu(h3_1), conv_w4_0, subsample=(2, 2), border_mode=(1, 1))+conv_b4_0.dimshuffle('x', 0, 'x', 'x')
h4_1 = dnn_conv(relu(h4_0), conv_w4_1, subsample=(1, 1), border_mode=(1, 1))+conv_b4_1.dimshuffle('x', 0, 'x', 'x')
# deconv output (64x64x64=>64x64x3)
output = dnn_conv(relu(h4_1), conv_w5, subsample=(1, 1), border_mode=(1, 1))+conv_b5.dimshuffle('x', 0, 'x', 'x')
output = tanh(output)
return [T.flatten(h4_1, 2), T.flatten(h4_0, 2),
T.flatten(h3_1, 2), T.flatten(h3_0, 2),
T.flatten(h2_2, 2), T.flatten(h2_1, 2), T.flatten(h2_0, 2),
T.flatten(h1_2, 2), T.flatten(h1_1, 2), T.flatten(h1_0, 2),
T.flatten(h0_2, 2), T.flatten(h0_1, 2), T.flatten(h0_0, 2),
T.flatten(seed, 2),
output]
def gen_test(_z, _params, _batchnorm, n_layers=3, n_f=128, init_sz=4, nc=3, use_tanh=False):
if use_tanh:
_z= tanh(_z)
[gw0, gg0, gb0] = _params[0:3]
hs = []
u = _batchnorm[0]
s = _batchnorm[n_layers + 1]
h0 = relu(batchnorm(T.dot(T.clip(_z, -1.0, 1.0), gw0), u=u, s=s, g=gg0, b=gb0))
h1 = h0.reshape((h0.shape[0], n_f * 2 ** n_layers, init_sz, init_sz))
hs.extend([h0, h1])
for n in range(n_layers):
[w, g, b] = _params[3 * (n + 1):3 * (n + 2)]
hin = hs[-1]
u = _batchnorm[n + 1]
s = _batchnorm[n + n_layers + 2]
hout = relu(batchnorm(deconv(hin, w, subsample=(2, 2), border_mode=(2, 2)), u=u, s=s, g=g, b=b))
hs.append(hout)
x = deconv(hs[-1], _params[-1], subsample=(2, 2), border_mode=(2, 2))
if nc == 3:
x_f = tanh(x)
if nc == 1:
x_f = sigmoid(x)
return x_f
def gen(Z, Y, w, w2, w3, wx):
print '\n@@@@ gen()'
printVal('Z', Z) # matrix
#printVal( 'Y', Y ) # matrix
printVal('w', w) # matrix
printVal('w2', w2) # matrix
printVal('w3', w3) # tensor
printVal('wx', wx) # tensor
# Yの要素の並びの入れ替え。数字の引数は、次元番号。'x' は ブロードキャスト
# 並び替えの前後で、全体の要素数は変わらない。
yb = Y.dimshuffle(0, 1, 'x', 'x')
# yb は４次元テンソル
#printVal('yb', yb)
# 行列 Z と Y を結合（横方向）
Z = T.concatenate([Z, Y], axis=1) # matrix
# Z*w(Full Connect) をバッチ正規化して、ReLU 適用
tmp_a = T.dot(Z, w) # dot(matrix, matrix)->matrix
printVal('dot(Z,w) -> tmp_a', tmp_a)
h = relu(batchnorm(T.dot(Z, w))) #CCC
h = T.concatenate([h, Y], axis=1) #CCC
printVal('h', h) # matrix
h2 = relu(batchnorm(T.dot(h, w2))) #CCC
printVal('h2', h2) #h2:matrix
h2r = h2.reshape((h2.shape[0], GEN_NUM_FILTER * 2, 7, 7)) #CCC
printVal('h2r', h2r) #h2r:tensor
h2ry = conv_cond_concat(h2r, yb) #
printVal('h2ry', h2ry) #h2:tensor
# デコンボリューション:論文によれば、空間プーリングの代わりに適用する
d = deconv(h2ry, w3, subsample=(2, 2), border_mode=(2, 2))
printVal('d', d)
#h3 = relu(batchnorm(deconv(h2, w3, subsample=(2, 2), border_mode=(2, 2))))
h3 = relu(batchnorm(d))
h3 = conv_cond_concat(h3, yb)
x = sigmoid(deconv(h3, wx, subsample=(2, 2), border_mode=(2, 2)))
return x, h2
def apply(self, input, rand_vals=None):
"""
Apply this generator module to some input.
"""
batch_size = input.shape[0]
bm = int((self.filt_dim - 1) / 2) # use "same" mode convolutions
ss = self.us_stride # stride for "learned upsampling"
if self.use_pooling:
# "unpool" the input if desired
input = input.repeat(ss, axis=2).repeat(ss, axis=3)
# get shape for random values that will augment input
rand_shape = (batch_size, self.rand_chans, input.shape[2],
input.shape[3])
if self.use_rand:
# augment input with random channels
if rand_vals is None:
if self.rand_type == 'normal':
rand_vals = self.rng.normal(size=rand_shape, avg=0.0, std=1.0, \
dtype=theano.config.floatX)
else:
rand_vals = self.rng.uniform(size=rand_shape, low=-1.0, high=1.0, \
dtype=theano.config.floatX)
rand_vals = rand_vals.reshape(rand_shape)
# stack random values on top of input
full_input = T.concatenate([rand_vals, input], axis=1)
else:
# don't augment input with random channels
full_input = input
# apply first convolution, perhaps with fractional striding
if self.use_pooling:
h1 = dnn_conv(full_input,
self.w1,
subsample=(1, 1),
border_mode=(bm, bm))
else:
# apply first conv layer (with fractional stride for upsampling)
h1 = deconv(full_input,
self.w1,
subsample=(ss, ss),
border_mode=(bm, bm))
if self.apply_bn_1:
h1 = batchnorm(h1, g=self.g1, b=self.b1)
h1 = relu(h1)
# apply second conv layer
h2 = dnn_conv(h1, self.w2, subsample=(1, 1), border_mode=(bm, bm))
if self.apply_bn_2:
h2 = batchnorm(h2, g=self.g2, b=self.b2)
h2 = relu(h2)
return h2
def gen(Z, w, g, b, w2, g2, b2, w3, g3, b3, w4, g4, b4, w5, g5, b5, w6, g6, b6, wx):
h = relu(batchnorm(T.dot(Z, w), g=g, b=b))
h = h.reshape((h.shape[0], ngf*4, 4, 4))
h2 = relu(batchnorm(deconv(h, w2, subsample=(2, 2), border_mode=(1, 1)), g=g2, b=b2))
h3 = relu(batchnorm(deconv(h2, w3, subsample=(1, 1), border_mode=(1, 1)), g=g3, b=b3))
h4 = relu(batchnorm(deconv(h3, w4, subsample=(2, 2), border_mode=(1, 1)), g=g4, b=b4))
h5 = relu(batchnorm(deconv(h4, w5, subsample=(1, 1), border_mode=(1, 1)), g=g5, b=b5))
h6 = relu(batchnorm(deconv(h5, w6, subsample=(2, 2), border_mode=(1, 1)), g=g6, b=b6))
x = tanh(deconv(h6, wx, subsample=(1, 1), border_mode=(1, 1)))
return x
def discrim(X):
current_input = dropout(X, 0.3)
### encoder ###
cv1 = relu(
dnn_conv(current_input, aew1, subsample=(1, 1), border_mode=(1, 1)))
cv2 = relu(
batchnorm(dnn_conv(cv1, aew2, subsample=(4, 4), border_mode=(2, 2)),
g=aeg2,
b=aeb2))
cv3 = relu(
batchnorm(dnn_conv(cv2, aew3, subsample=(1, 1), border_mode=(1, 1)),
g=aeg3,
b=aeb3))
cv4 = relu(
batchnorm(dnn_conv(cv3, aew4, subsample=(4, 4), border_mode=(2, 2)),
g=aeg4,
b=aeb4))
cv5 = relu(
batchnorm(dnn_conv(cv4, aew5, subsample=(1, 1), border_mode=(1, 1)),
g=aeg5,
b=aeb5))
cv6 = relu(
batchnorm(dnn_conv(cv5, aew6, subsample=(4, 4), border_mode=(0, 0)),
g=aeg6,
b=aeb6))
### decoder ###
dv6 = relu(
batchnorm(deconv(cv6, aew6, subsample=(4, 4), border_mode=(0, 0)),
g=aeg6t,
b=aeb6t))
dv5 = relu(
batchnorm(deconv(dv6, aew5, subsample=(1, 1), border_mode=(1, 1)),
g=aeg5t,
b=aeb5t))
dv4 = relu(
batchnorm(deconv(dv5, aew4, subsample=(4, 4), border_mode=(2, 2)),
g=aeg4t,
b=aeb4t))
dv3 = relu(
batchnorm(deconv(dv4, aew3, subsample=(1, 1), border_mode=(1, 1)),
g=aeg3t,
b=aeb3t))
dv2 = relu(
batchnorm(deconv(dv3, aew2, subsample=(4, 4), border_mode=(2, 2)),
g=aeg2t,
b=aeb2t))
dv1 = tanh(deconv(dv2, aew1, subsample=(1, 1), border_mode=(1, 1)))
rX = dv1
mse = T.sqrt(T.sum(T.abs_(T.flatten(X - rX, 2)), axis=1)) + T.sqrt(
T.sum(T.flatten((X - rX)**2, 2), axis=1)) # L1 and L2 loss
return T.flatten(cv6, 2), rX, mse
def apply(self, input, rand_vals=None):
"""
Apply this generator module to some input.
"""
batch_size = input.shape[0]
bm = int((self.filt_dim - 1) / 2) # use "same" mode convolutions
ss = self.us_stride # stride for "learned upsampling"
if self.use_pooling:
# "unpool" the input if desired
input = input.repeat(ss, axis=2).repeat(ss, axis=3)
# get shape for random values that will augment input
rand_shape = (batch_size, self.rand_chans, input.shape[2], input.shape[3])
if self.use_rand:
# augment input with random channels
if rand_vals is None:
if self.rand_type == 'normal':
rand_vals = self.rng.normal(size=rand_shape, avg=0.0, std=1.0, \
dtype=theano.config.floatX)
else:
rand_vals = self.rng.uniform(size=rand_shape, low=-1.0, high=1.0, \
dtype=theano.config.floatX)
rand_vals = rand_vals.reshape(rand_shape)
# stack random values on top of input
full_input = T.concatenate([rand_vals, input], axis=1)
else:
# don't augment input with random channels
full_input = input
# apply first convolution, perhaps with fractional striding
if self.use_pooling:
h1 = dnn_conv(full_input, self.w1, subsample=(1, 1), border_mode=(bm, bm))
else:
# apply first conv layer (with fractional stride for upsampling)
h1 = deconv(full_input, self.w1, subsample=(ss, ss), border_mode=(bm, bm))
if self.apply_bn_1:
h1 = batchnorm(h1, g=self.g1, b=self.b1)
h1 = relu(h1)
# apply second conv layer
h2 = dnn_conv(h1, self.w2, subsample=(1, 1), border_mode=(bm, bm))
if self.apply_bn_2:
h2 = batchnorm(h2, g=self.g2, b=self.b2)
h2 = relu(h2)
return h2
def convolve(self, input, **kwargs):
return deconv(input, self.W, subsample=(2, 2), border_mode='half')
def decoder_green_function(feature_data):
decoder_green = deconv(feature_data, green_w, subsample=(2, 2), border_mode=(2, 2)) + green_b.dimshuffle('x', 0, 'x', 'x')
return decoder_green
def convolve(self, input, **kwargs):
return deconv(input, self.W, subsample=(2, 2), border_mode='half')
def decoder_red_function(feature_data):
decoder_red = deconv(feature_data, red_w, subsample=(2, 2), border_mode=(2, 2)) + red_b.dimshuffle('x', 0, 'x', 'x')
return decoder_red
def deconv_and_depool(X, w, s=2, b=None, activation=T.nnet.relu):
return activation(deconv(depool(X, s), w, s, b))
## encode layer
e_layer_sizes = [128, 32, 8]
e_filter_sizes = [1, 256, 1024]
eX, e_params, e_layers = make_conv_set(X, e_layer_sizes, e_filter_sizes, "e")
## generative layer
g_layer_sizes = [8, 16, 32, 64, 128]
g_num_filters = [1024, 512, 256, 256, 128]
g_out, g_params, g_layers = make_conv_set(eX, g_layer_sizes, g_num_filters,
"g")
gwx = gifn((128, 2, 5, 5), 'gwx')
g_params += [gwx]
gX = tanh(deconv(g_out, gwx, subsample=(1, 1), border_mode=(2, 2)))
## discrim layer(s)
df1 = 128
d_layer_sizes = [128, 64, 32, 16, 8]
d_filter_sizes = [2, df1, 2 * df1, 4 * df1, 8 * df1]
dwy = difn((df1 * 8 * 10 * 8, 1), 'dwy')
def discrim(input, name, weights=None):
d_out, disc_params, d_layers = make_conv_set(input,
d_layer_sizes,
d_filter_sizes,
name,
def discrim(X, Y):
def classifier(H, Y):
p_y_given_x = T.nnet.softmax(T.dot(H, logistic_w) + logistic_b)
neg_lik = -T.sum(T.mul(T.log(p_y_given_x), Y), axis=1)
return neg_lik, p_y_given_x
current_input = dropout(X, 0.2)
### encoder ###
cv1 = relu(
dnn_conv(current_input, aew1, subsample=(1, 1), border_mode=(1, 1)))
cv2 = relu(
batchnorm(dnn_conv(cv1, aew2, subsample=(2, 2), border_mode=(0, 0)),
g=aeg2,
b=aeb2))
cv3 = relu(
batchnorm(dnn_conv(cv2, aew3, subsample=(1, 1), border_mode=(1, 1)),
g=aeg3,
b=aeb3))
cv4 = relu(
batchnorm(dnn_conv(cv3, aew4, subsample=(4, 4), border_mode=(0, 0)),
g=aeg4,
b=aeb4))
cv5 = relu(
batchnorm(dnn_conv(cv4, aew5, subsample=(1, 1), border_mode=(1, 1)),
g=aeg5,
b=aeb5))
cv6 = relu(
batchnorm(dnn_conv(cv5, aew6, subsample=(4, 4), border_mode=(0, 0)),
g=aeg6,
b=aeb6))
### decoder ###
dv6 = relu(
batchnorm(deconv(cv6, aew6, subsample=(4, 4), border_mode=(0, 0)),
g=aeg6t,
b=aeb6t))
dv5 = relu(
batchnorm(deconv(dv6, aew5, subsample=(1, 1), border_mode=(1, 1)),
g=aeg5t,
b=aeb5t))
dv4 = relu(
batchnorm(deconv(dv5, aew4, subsample=(4, 4), border_mode=(0, 0)),
g=aeg4t,
b=aeb4t))
dv3 = relu(
batchnorm(deconv(dv4, aew3, subsample=(1, 1), border_mode=(1, 1)),
g=aeg3t,
b=aeb3t))
dv2 = relu(
batchnorm(deconv(dv3, aew2, subsample=(2, 2), border_mode=(0, 0)),
g=aeg2t,
b=aeb2t))
dv1 = tanh(deconv(dv2, aew1, subsample=(1, 1), border_mode=(1, 1)))
hidden = T.flatten(cv6, 2)
rX = dv1
mse = T.sqrt(T.sum(T.flatten((X - rX)**2, 2), axis=1))
#mse = T.sqrt(T.sum(T.abs_(T.flatten(X-rX, 2)),axis=1)) + T.sqrt(T.sum(T.flatten((X-rX)**2, 2), axis=1))
neg_lik, p_y_given_x = classifier(hidden, Y)
return hidden, p_y_given_x, rX, mse, neg_lik
def load_model():
[e_params, g_params, d_params] = pickle.load(open("faces_dcgan.pkl", "rb"))
gwx = g_params[-1]
dwy = d_params[-1]
# inputs
X = T.tensor4()
## encode layer
e_layer_sizes = [128, 64, 32, 16, 8]
e_filter_sizes = [3, 256, 256, 512, 1024]
eX, e_params, e_layers = make_conv_set(X,
e_layer_sizes,
e_filter_sizes,
"e",
weights=e_params)
## generative layer
g_layer_sizes = [8, 16, 32, 64, 128]
g_num_filters = [1024, 512, 256, 256, 128]
g_out, g_params, g_layers = make_conv_set(eX,
g_layer_sizes,
g_num_filters,
"g",
weights=g_params)
g_params += [gwx]
gX = tanh(deconv(g_out, gwx, subsample=(1, 1), border_mode=(2, 2)))
## discrim layer(s)
df1 = 128
d_layer_sizes = [128, 64, 32, 16, 8]
d_filter_sizes = [3, df1, 2 * df1, 4 * df1, 8 * df1]
def discrim(input, name, weights=None):
d_out, disc_params, d_layers = make_conv_set(input,
d_layer_sizes,
d_filter_sizes,
name,
weights=weights)
d_flat = T.flatten(d_out, 2)
disc_params += [dwy]
y = sigmoid(T.dot(d_flat, dwy))
return y, disc_params, d_layers
# target outputs
target = T.tensor4()
p_real, d_params, d_layers = discrim(target, "d", weights=d_params)
# we need to make sure the p_gen params are the same as the p_real params
p_gen, d_params2, d_layers = discrim(gX, "d", weights=d_params)
## GAN costs
d_cost_real = bce(p_real, T.ones(p_real.shape)).mean()
d_cost_gen = bce(p_gen, T.zeros(p_gen.shape)).mean()
g_cost_d = bce(p_gen, T.ones(p_gen.shape)).mean()
## MSE encoding cost is done on an (averaged) downscaling of the image
target_pool = max_pool_2d(target, (4, 4),
mode="average_exc_pad",
ignore_border=True)
target_flat = T.flatten(target_pool, 2)
gX_pool = max_pool_2d(gX, (4, 4),
mode="average_exc_pad",
ignore_border=True)
gX_flat = T.flatten(gX_pool, 2)
enc_cost = mse(gX_flat, target_flat).mean()
## generator cost is a linear combination of the discrim cost plus the MSE enocding cost
d_cost = d_cost_real + d_cost_gen
g_cost = g_cost_d + enc_cost / 10 ## if the enc_cost is weighted too highly it will take a long time to train
## N.B. e_cost and e_updates will only try and minimise MSE loss on the autoencoder (for debugging)
e_cost = enc_cost
cost = [g_cost_d, d_cost_real, enc_cost]
elrt = sharedX(0.002)
lrt = sharedX(lr)
d_updater = updates.Adam(lr=lrt,
b1=b1,
regularizer=updates.Regularizer(l2=l2))
g_updater = updates.Adam(lr=lrt,
b1=b1,
regularizer=updates.Regularizer(l2=l2))
e_updater = updates.Adam(lr=elrt,
b1=b1,
regularizer=updates.Regularizer(l2=l2))
d_updates = d_updater(d_params, d_cost)
g_updates = g_updater(e_params + g_params, g_cost)
e_updates = e_updater(e_params, e_cost)
print 'COMPILING'
t = time()
_train_g = theano.function([X, target], cost, updates=g_updates)
_train_d = theano.function([X, target], cost, updates=d_updates)
_train_e = theano.function([X, target], cost, updates=e_updates)
_get_cost = theano.function([X, target], cost)
print('%.2f seconds to compile theano functions' % (time() - t))
img_dir = "gen_images/"
if not os.path.exists(img_dir):
os.makedirs(img_dir)
ae_encode = theano.function([X, target], [gX, target])
return ae_encode
X = T.tensor4()
## encode layer
e_layer_sizes = [128, 32, 8]
e_filter_sizes = [1, 256, 1024]
eX, e_params, e_layers = make_conv_set(X, e_layer_sizes, e_filter_sizes, "e")
## generative layer
g_layer_sizes = [8, 16, 32, 64, 128]
g_num_filters = [1024, 512, 256, 256, 128]
g_out, g_params, g_layers = make_conv_set(eX, g_layer_sizes, g_num_filters, "g")
gwx = gifn((128, 2, 5, 5), 'gwx')
g_params += [gwx]
gX = tanh(deconv(g_out, gwx, subsample=(1, 1), border_mode=(2, 2)))
## discrim layer(s)
df1 = 128
d_layer_sizes = [128, 64, 32, 16, 8]
d_filter_sizes = [2, df1, 2 * df1, 4 * df1, 8 * df1]
dwy = difn((df1 * 8 * 10 * 8, 1), 'dwy')
def discrim(input, name, weights=None):
d_out, disc_params, d_layers = make_conv_set(input, d_layer_sizes, d_filter_sizes, name, weights = weights)
d_flat = T.flatten(d_out, 2)
disc_params += [dwy]
y = sigmoid(T.dot(d_flat, dwy))
def decoder_blue_function(feature_data):
decoder_blue = deconv(feature_data, blue_w, subsample=(2, 2), border_mode=(2, 2)) + blue_b.dimshuffle('x', 0, 'x', 'x')
return decoder_blue