maoyw57

Results 2 issues of maoyw57

When I convert det_train.json to det_train_cocofmt.json, I meet this problem in picture. But I can convert det_val.json and track successfully. I'm confused this situation. ![1625198117(1)](https://user-images.githubusercontent.com/73291365/124218936-d8aa9000-db2d-11eb-8b93-f89df7e2db84.png) ![1625198117(1)](https://user-images.githubusercontent.com/73291365/124218958-e3fdbb80-db2d-11eb-8266-1d62168de379.png)

I can't find the two documents. "hard example mining" in siamban/dataset/dataset.py needs a json document. How do you get it?