some different between darknet with your yolov3?

[zlheos]

in darknet

1. obj/no obj loss l.delta[obj_index] = 0 - l.output[obj_index]; // no obj diff if (best_iou > l.ignore_thresh) { l.delta[obj_index] = 0; } if (best_iou > l.truth_thresh) { l.delta[obj_index] = 1 - l.output[obj_index]; //obj diff } why your yolov3 has no ignore_thresh ?
2. you swap data through logistic_activate