softmaxfocalloss
the focal loss in Aritcal Focal Loss for Dense Object Detection
Code is test on MxNet 0.11.0
Installation
- Clone the softmaxfocalloss repository, and we'll call the directory that you cloned softmaxfocalloss as ${FOCAL_LOSS_ROOT}. 
git clone https://github.com/yuantangliang/softmaxfocalloss.git
- Install MXNet: - 3.1 Clone MXNet and checkout to MXNet by - git clone --recursive https://github.com/dmlc/mxnet.git
git submodule update - 3.2 Copy operators in - $(FOCAL_LOSS_ROOT)/source/softmaxfocal_output.xxxby
 - cp -r $(FOCAL_LOSS_ROOT)/source/* $(MXNET_ROOT)/src/operator/contrib/ - 3.3 Compile MXNet - cd ${MXNET_ROOT}
make -j $(nproc) USE_OPENCV=1 USE_BLAS=openblas USE_CUDA=1 USE_CUDA_PATH=/usr/local/cuda USE_CUDNN=1- 3.4 Install the MXNet Python binding by - cd python
sudo python setup.py install 
Test
- run test function to make sure everything is ok by 
cd  $(FOCAL_LOSS_ROOT)
python softmaxfocaltest.py