Python dnn.dnn_conv函数代码示例

 def apply(self, input):
     """
     Apply this discriminator module to the given input. This produces a
     collection of filter responses for feedforward and a spatial grid of
     discriminator outputs.
     """
     bm = int((self.filt_dim - 1) / 2) # use "same" mode convolutions
     ss = self.ds_stride               # stride for "learned downsampling"
     # apply first conv layer
     h1 = dnn_conv(input, self.w1, subsample=(1, 1), border_mode=(bm, bm))
     if self.apply_bn_1:
         h1 = batchnorm(h1, g=self.g1, b=self.b1)
     h1 = lrelu(h1)
     # apply second conv layer (may include downsampling)
     if self.use_pooling:
         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 = lrelu(h2)
         h2 = dnn_pool(h2, (ss,ss), stride=(ss, ss), mode='max', pad=(0, 0))
     else:
         h2 = dnn_conv(h1, self.w2, subsample=(ss, ss), border_mode=(bm, bm))
         if self.apply_bn_2:
             h2 = batchnorm(h2, g=self.g2, b=self.b2)
         h2 = lrelu(h2)
     
     # apply discriminator layer
     y = dnn_conv(h2, self.wd, subsample=(1, 1), border_mode=(bm, bm))
     y = sigmoid(T.flatten(y, 2)) # flatten to (batch_size, num_preds)
     return h2, y

    def get_output(self, train=False):
        X = self.get_input(train)
        border_mode = self.border_mode
        if on_gpu() and dnn.dnn_available():
            if border_mode == 'same':
                assert(self.subsample == (1, 1))
                pad_x = (self.nb_row - self.subsample[0]) // 2
                pad_y = (self.nb_col - self.subsample[1]) // 2
                conv_out = dnn.dnn_conv(img=X,
                                        kerns=self.W,
                                        border_mode=(pad_x, pad_y))
            else:
                conv_out = dnn.dnn_conv(img=X,
                                        kerns=self.W,
                                        border_mode=border_mode,
                                        subsample=self.subsample)
        else:
            if border_mode == 'same':
                border_mode = 'full'
                assert(self.subsample == (1, 1))

            conv_out = T.nnet.conv.conv2d(X, self.W,
                                          border_mode=border_mode,
                                          subsample=self.subsample,
                                          image_shape=self.input_shape,
                                          filter_shape=self.W_shape)
            if self.border_mode == 'same':
                shift_x = (self.nb_row - 1) // 2
                shift_y = (self.nb_col - 1) // 2
                conv_out = conv_out[:, :, shift_x:X.shape[2] + shift_x, shift_y:X.shape[3] + shift_y]

        return self.activation(conv_out + self.b.dimshuffle('x', 0, 'x', 'x'))

def discrim(X, w, w2, g2, b2, w3, g3, b3, wy, by):
    h = lrelu(dnn_conv(X, w, subsample=(2, 2), border_mode=(2, 2)))
    h2 = lrelu(batchnorm(dnn_conv(h, 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))
    h3 = T.flatten(h3, 2)
    y = -softplus(T.dot(h3, wy)+by)
    return y

def encoder( s, w1, w2, g2, b2, w3, g3, b3, w4, g4, b4, w5, g5, b5 ):
    h1 = lrelu( dnn_conv( s, 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 ) )
    z = lrelu( batchnorm( dnn_conv( h4, w5, subsample = ( 1, 1 ), border_mode = ( 0, 0 ) ), g = g5, b = b5 ) )
    return T.flatten( z, 2 )

def discrim( t, w1, w2, g2, b2, w3, g3, b3, w4, g4, b4, w5 ):
    h1 = lrelu( dnn_conv( t, 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 ) )
    yd = sigmoid( T.dot( T.flatten( h4, 2 ), w5 ) )
    return yd

def discrim(X, w, b, w2, g2, b2, w3, g3, b3, w4, g4, b4, wy, wy1):
    h0 = dnn_conv(X, w, subsample=(2, 2), border_mode=(2, 2))
    if args.db1:
        h0 += b.dimshuffle('x', 0, 'x', 'x')
    h1 = lrelu(h0)
    h1 = dropout(h1, args.dropout)
    h1 = dnn_conv(h1, w2, subsample=(2, 2), border_mode=(2, 2))
    if args.dbn:
        h1 = batchnorm(h1, g=g2, b=b2)
    else:
        h1 += b2.dimshuffle('x', 0, 'x', 'x')
    h2 = lrelu(h1)
    h2 = dropout(h2, args.dropout)
    h2 = dnn_conv(h2, w3, subsample=(2, 2), border_mode=(2, 2))
    if args.dbn:
        h2 = batchnorm(h2, g=g3, b=b3)
    else:
        h2 += b3.dimshuffle('x', 0, 'x', 'x')
    h3 = lrelu(h2)
    h3 = dropout(h3, args.dropout)
    h3 = dnn_conv(h3, w4, subsample=(2, 2), border_mode=(2, 2))
    if args.dbn:
        h3 = batchnorm(h3, g=g4, b=b4)
    else:
        h3 += b4.dimshuffle('x', 0, 'x', 'x')
    h4 = lrelu(h3)
    h4 = dropout(h4, args.dropout)
    h4 = T.flatten(h4, 2)
    y = sigmoid(T.dot(h4, wy))
    y1 = sigmoid(T.dot(h4, wy1))
    return y, y1

def discrim(X, w, w2, g2, b2, w3, g3, b3, wy, by):
    h0 = dropout(relu(dnn_conv(X, w, subsample=(2, 2), border_mode=(2, 2))), p=0.5)
    h1 = dropout(relu(batchnorm(dnn_conv(h0, w2, subsample=(2, 2), border_mode=(2, 2)), g=g2, b=b2)), p=0.5)
    h2 = dropout(relu(batchnorm(dnn_conv(h1, w3, subsample=(2, 2), border_mode=(2, 2)), g=g3, b=b3)), p=0.5)
    h2 = T.flatten(h2, 2)
    y = -relu(T.dot(h2, wy)+by)
    return y

    def get_output(self, train=False):
        X = self.get_input(train)
        newshape = (X.shape[0]*X.shape[1], X.shape[2], X.shape[3], X.shape[4])
        Y = theano.tensor.reshape(X, newshape) #collapse num_samples and num_timesteps
        border_mode = self.border_mode
        if on_gpu() and dnn.dnn_available():
            if border_mode == 'same':
                assert(self.subsample == (1, 1))
                pad_x = (self.nb_row - self.subsample[0]) // 2
                pad_y = (self.nb_col - self.subsample[1]) // 2
                conv_out = dnn.dnn_conv(img=Y,
                                        kerns=self.W,
                                        border_mode=(pad_x, pad_y))
            else:
                conv_out = dnn.dnn_conv(img=Y,
                                        kerns=self.W,
                                        border_mode=border_mode,
                                        subsample=self.subsample)
        else:
            if border_mode == 'same':
                border_mode = 'full'

            conv_out = theano.tensor.nnet.conv.conv2d(Y, self.W,
                border_mode=border_mode, subsample=self.subsample)

            if self.border_mode == 'same':
                shift_x = (self.nb_row - 1) // 2
                shift_y = (self.nb_col - 1) // 2
                conv_out = conv_out[:, :, shift_x:Y.shape[2] + shift_x, shift_y:Y.shape[3] + shift_y]

        output = self.activation(conv_out + self.b.dimshuffle('x', 0, 'x', 'x'))
        newshape = (X.shape[0], X.shape[1], output.shape[1], output.shape[2], output.shape[3])
        return theano.tensor.reshape(output, newshape)

    def get_output(self, train):
        X = self.get_input(train)
        border_mode = self.border_mode
        if dnn.dnn_available() and theano.config.device[:3] == 'gpu':
            if border_mode == 'same':
                assert(self.subsample == (1, 1))
                pad_x = (self.nb_row - self.subsample[0]) // 2
                pad_y = (self.nb_col - self.subsample[1]) // 2
                conv_out = dnn.dnn_conv(img=X,
                                        kerns=self.W,
                                        border_mode=(pad_x, pad_y))
            else:
                conv_out = dnn.dnn_conv(img=X,
                                        kerns=self.W,
                                        border_mode=border_mode,
                                        subsample=self.subsample)
        else:
            if border_mode == 'same':
                border_mode = 'full'

            conv_out = T.nnet.conv.conv2d(X, self.W,
                                          border_mode=border_mode,
                                          subsample=self.subsample)
            if self.border_mode == 'same':
                shift_x = (self.nb_row - 1) // 2
                shift_y = (self.nb_col - 1) // 2
                conv_out = conv_out[:, :, shift_x:X.shape[2] + shift_x, shift_y:X.shape[3] + shift_y]

        return self.activation(conv_out + self.b.dimshuffle('x', 0, 'x', 'x'))

 def discrim(X, w, w2, w3, wy):
     h = lrelu(dnn_conv(X, w, subsample=(2, 2), border_mode=(2, 2)))
     h2 = lrelu(batchnorm(dnn_conv(h, w2, subsample=(2, 2), border_mode=(2, 2))))
     h2 = T.flatten(h2, 2)
     h3 = lrelu(batchnorm(T.dot(h2, w3)))
     y = sigmoid(T.dot(h3, wy))
     return y

    def get_output(self, train=False):
        X = self.get_input(train)
        X = T.reshape(X, (X.shape[0], X.shape[1], X.shape[2], 1)).dimshuffle(0, 2, 1, 3)

        border_mode = self.border_mode
        if on_gpu() and dnn.dnn_available():
            if border_mode == 'same':
                assert(self.subsample_length == 1)
                pad_x = (self.filter_length - self.subsample_length) // 2
                conv_out = dnn.dnn_conv(img=X,
                                        kerns=self.W,
                                        border_mode=(pad_x, 0))
            else:
                conv_out = dnn.dnn_conv(img=X,
                                        kerns=self.W,
                                        border_mode=border_mode,
                                        subsample=self.subsample)
        else:
            if border_mode == 'same':
                assert(self.subsample_length == 1)
                border_mode = 'full'

            conv_out = T.nnet.conv.conv2d(X, self.W,
                                          border_mode=border_mode,
                                          subsample=self.subsample)
            if self.border_mode == 'same':
                shift_x = (self.filter_length - 1) // 2
                conv_out = conv_out[:, :, shift_x:X.shape[2] + shift_x, :]

        output = self.activation(conv_out + self.b.dimshuffle('x', 0, 'x', 'x'))
        output = T.reshape(output, (output.shape[0], output.shape[1], output.shape[2])).dimshuffle(0, 2, 1)
        return output

def domain_discrim( st, w1, w2, g2, b2, w3, g3, b3, w4, g4, b4, w5, g5, b5, w6 ):
    h1 = lrelu( dnn_conv( st, 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 ) )
    ydd = sigmoid( T.dot( T.flatten( h5, 2 ), w6 ) )
    return ydd

def discrim(X, w, w2, g2, b2, w3, g3, b3, wy, wa):
    h0 = dropout(relu(dnn_conv(X, w, subsample=(2, 2), border_mode=(2, 2))), p=0.5)
    h1 = dropout(relu(batchnorm(dnn_conv(h0, w2, subsample=(2, 2), border_mode=(2, 2)), g=g2, b=b2)), p=0.5)
    h2 = dropout(relu(batchnorm(dnn_conv(h1, w3, subsample=(2, 2), border_mode=(2, 2)), g=g3, b=b3)), p=0.5)
    h2 = T.flatten(h2, 2)
    y = square(T.dot(h2, wy))
    y = T.dot(T.log(1+y), T.exp(wa))
    return y

 def feature_function(input_data, is_train=True):
     h0 = relu(batchnorm(X=dnn_conv(input_data, conv_w0, subsample=(2, 2), border_mode=(2, 2)), g=bn_w0, b=bn_b0))
     h1 = relu(batchnorm(X=dnn_conv(h0,         conv_w1, subsample=(2, 2), border_mode=(2, 2)), g=bn_w1, b=bn_b1))
     h2 = relu(batchnorm(X=dnn_conv(h1,         conv_w2, subsample=(2, 2), border_mode=(2, 2)), g=bn_w2, b=bn_b2))
     h3 = relu(batchnorm(X=dnn_conv(h2,         conv_w3, subsample=(2, 2), border_mode=(2, 2)), g=bn_w3, b=bn_b3))
     h3 = T.flatten(h3, 2)
     f  = tanh(T.dot(h3, linear_w4)+linear_b4)
     return f

def discrim(X, w, w2, g2, b2, w3, g3, b3, w4, g4, b4, wy):
    h = lrelu(dnn_conv(X, w, subsample=(2, 2), border_mode=(2, 2)))
    h2 = lrelu(batchnorm(dnn_conv(h, 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))
    h4 = T.flatten(h4, 2)
    y = sigmoid(T.dot(h4, wy))
    return y