Quasar > Machine Learning > Deep learning

Deep learning


An overview of the different functions and classes:

cudnn_activation_backwardCalculates the gradient of the neural activation function
cudnn_activation_forwardApplies a pointwise neural activation function to the input signal
cudnn_convolution_backward_biasCalculates the gradient of the convolution with respect to the bias, which is defined as the sum of all intensities per feature map across all images of the input tensor.
cudnn_convolution_backward_dataCalculates the gradient of the convolution with respect to the data using the CUDNN library
cudnn_convolution_backward_filterCalculates the gradient of the convolution with respect to the filter coefficients, using the CUDNN library.
cudnn_convolution_forwardCalculates a forward convolution or cross-correlation using the CUDNN library.
cudnn_hwcn_tensorConverts a 4D tensor in nchw format to hwcn format (h=height, w=width, c=channels, n=images)
cudnn_nchw_tensorConverts a 4D tensor in hwcn format to nchw format (h=height, w=width, c=channels, n=images)
cudnn_pooling_backwardCalculates the gradient of the pooling operation, using the CUDNN library
cudnn_pooling_forwardPerforms pooling of the input values (i.e., the maximum or average of a local neighborhood of values), resulting in a tensor of smaller dimensions. The dimensions of this tensor can be retrieved using
cudnn_pooling_getforwardoutputdimProvides the output tensor dimensions after the pooling has been applied, using the following formula which is applied to the spatial dimensions of the tensor.
cudnn_softmax_backwardThis function calculates the gradient of the softmax function, using the CUDNN library
cudnn_softmax_forwardThis function calculates the softmax function, using the CUDNN library
cudnn_versionReturns the version of the currently installed cuDNN library.
qdnn_activation_descriptorThe base class for all objects in Quasar
qdnn_conv_descriptorThe base class for all objects in Quasar
qdnn_pooling_descriptorThe base class for all objects in Quasar