def call(self, inputs): stride = self.strides[0] output_length, feature_dim, filters = self.kernel_shape xs = [] for i in range(output_length): slice_length = slice(i * stride, i * stride + self.kernel_size[0]) xs.append(K.reshape(inputs[:, slice_length, :], (1, -1, feature_dim))) x_aggregate = K.concatenate(xs, axis=0) # Shape: `(output_length, batch_size, filters)`. output = K.batch_dot(x_aggregate, self.kernel) output = K.permute_dimensions(output, (1, 0, 2)) if self.use_bias: output += K.reshape(self.bias, (1, output_length, filters)) if self.activation is not None: output = self.activation(output) return output
def call(self, inputs): stride = self.strides[0] output_length, feature_dim, filters = self.kernel_shape xs = [] for i in range(output_length): slice_length = slice(i * stride, i * stride + self.kernel_size[0]) xs.append(K.reshape(inputs[:, slice_length, :], (1, -1, feature_dim))) x_aggregate = K.concatenate(xs, axis=0) # Shape: `(output_length, batch_size, filters)`. output = K.batch_dot(x_aggregate, self.kernel) output = K.permute_dimensions(output, (1, 0, 2)) if self.use_bias: output += K.reshape(self.bias, (1, output_length, filters)) if self.activation is not None: output = self.activation(output) return output
def call(self, inputs): x1 = inputs[0] x2 = inputs[1] if isinstance(self.axes, int): if self.axes < 0: axes = [self.axes % K.ndim(x1), self.axes % K.ndim(x2)] else: axes = [self.axes] * 2 else: axes = [] for i in range(len(self.axes)): if self.axes[i] < 0: axes.append(self.axes[i] % K.ndim(inputs[i])) else: axes.append(self.axes[i]) if self.normalize: x1 = K.l2_normalize(x1, axis=axes[0]) x2 = K.l2_normalize(x2, axis=axes[1]) output = K.batch_dot(x1, x2, axes) return output
def call(self, inputs): stride_row, stride_col = self.strides _, feature_dim, filters = self.kernel_shape if self.data_format == 'channels_first': if K.backend() == 'theano': output = [] for i in range(self.output_row): for j in range(self.output_col): slice_row = slice(i * stride_row, i * stride_row + self.kernel_size[0]) slice_col = slice(j * stride_col, j * stride_col + self.kernel_size[1]) x_flatten = K.reshape(inputs[:, :, slice_row, slice_col], (1, -1, feature_dim)) output.append( K.dot(x_flatten, self.kernel[i * self.output_col + j, :, :])) output = K.concatenate(output, axis=0) else: xs = [] for i in range(self.output_row): for j in range(self.output_col): slice_row = slice(i * stride_row, i * stride_row + self.kernel_size[0]) slice_col = slice(j * stride_col, j * stride_col + self.kernel_size[1]) xs.append( K.reshape(inputs[:, :, slice_row, slice_col], (1, -1, feature_dim))) x_aggregate = K.concatenate(xs, axis=0) output = K.batch_dot(x_aggregate, self.kernel) output = K.reshape(output, (self.output_row, self.output_col, -1, filters)) output = K.permute_dimensions(output, (2, 3, 0, 1)) elif self.data_format == 'channels_last': xs = [] for i in range(self.output_row): for j in range(self.output_col): slice_row = slice(i * stride_row, i * stride_row + self.kernel_size[0]) slice_col = slice(j * stride_col, j * stride_col + self.kernel_size[1]) xs.append( K.reshape(inputs[:, slice_row, slice_col, :], (1, -1, feature_dim ))) x_aggregate = K.concatenate(xs, axis=0) output = K.batch_dot(x_aggregate, self.kernel) output = K.reshape(output, (self.output_row, self.output_col, -1, filters)) output = K.permute_dimensions(output, (2, 0, 1, 3)) if self.use_bias: if self.data_format == 'channels_first': output += K.reshape(self.bias, (1, filters, self.output_row, self.output_col)) elif self.data_format == 'channels_last': output += K.reshape(self.bias, (1, self.output_row, self.output_col, filters)) output = self.activation(output) return output
def call(self, inputs): stride_row, stride_col = self.strides _, feature_dim, filters = self.kernel_shape if self.data_format == 'channels_first': if K.backend() == 'theano': output = [] for i in range(self.output_row): for j in range(self.output_col): slice_row = slice(i * stride_row, i * stride_row + self.kernel_size[0]) slice_col = slice(j * stride_col, j * stride_col + self.kernel_size[1]) x_flatten = K.reshape(inputs[:, :, slice_row, slice_col], (1, -1, feature_dim)) output.append( K.dot(x_flatten, self.kernel[i * self.output_col + j, :, :])) output = K.concatenate(output, axis=0) else: xs = [] for i in range(self.output_row): for j in range(self.output_col): slice_row = slice(i * stride_row, i * stride_row + self.kernel_size[0]) slice_col = slice(j * stride_col, j * stride_col + self.kernel_size[1]) xs.append( K.reshape(inputs[:, :, slice_row, slice_col], (1, -1, feature_dim))) x_aggregate = K.concatenate(xs, axis=0) output = K.batch_dot(x_aggregate, self.kernel) output = K.reshape(output, (self.output_row, self.output_col, -1, filters)) output = K.permute_dimensions(output, (2, 3, 0, 1)) elif self.data_format == 'channels_last': xs = [] for i in range(self.output_row): for j in range(self.output_col): slice_row = slice(i * stride_row, i * stride_row + self.kernel_size[0]) slice_col = slice(j * stride_col, j * stride_col + self.kernel_size[1]) xs.append( K.reshape(inputs[:, slice_row, slice_col, :], (1, -1, feature_dim ))) x_aggregate = K.concatenate(xs, axis=0) output = K.batch_dot(x_aggregate, self.kernel) output = K.reshape(output, (self.output_row, self.output_col, -1, filters)) output = K.permute_dimensions(output, (2, 0, 1, 3)) if self.use_bias: if self.data_format == 'channels_first': output += K.reshape(self.bias, (1, filters, self.output_row, self.output_col)) elif self.data_format == 'channels_last': output += K.reshape(self.bias, (1, self.output_row, self.output_col, filters)) output = self.activation(output) return output