_base_ = '../retinanet/retinanet_r50_fpn_1x_coco.py' model = dict( bbox_head=dict( type='PISARetinaHead', loss_bbox=dict(type='SmoothL1Loss', beta=0.11, loss_weight=1.0)), train_cfg=dict(isr=dict(k=2., bias=0.), carl=dict(k=1., bias=0.2)))