HOI-SDC

In order to avoid the training process of the model being influenced by a portion of HOI classes with a very small number of instances, we remove some of the HOI classes containing a very small number of instances and HOI classes with no interaction from the training \textbf{S}et for the \textbf{D}ouble \textbf{C}hallenge. Finally, there are total 321 HOI classes, 74 object classes and 93 action classes. The training and testing set contain 37,155 and 9,666 images, respectively.