YOLOV7正负样本策略及ComputeLossOTA学习笔记classComputeLossOTA:#Computelossesdef__init__(self,model,autobalance=False):super(ComputeLossOTA,self).__init__()device=next(model.parameters()).device#getmodeldeviceh=model.hyp#hyperparameters#DefinecriteriaBCEcls=nn.BCEWithLogitsLoss(pos_weight=torch.tensor([h['cls_p