about the negative samples?

[qqqlz]

Thank you for your code.
I want to know how to generate the negative samples' action classes?

[llrebecca]

I also want to ask how to generate trainval_GT and trainval_Neg?
For trainval_GT, each image only has 1 human bbox and 1 obj bbox. However, I see multiple bboxes in the hico annotations bbox_train.
For trainval_Neg. Why some images has negative samples, some image don't? How to get these negative human-object bboxes with hoi class labels?

Thank you!