Figure 1. An illustration of the difference between the proposed
DWmethodandexistinglabelassignmentmethods,e.g.,GFL[21]
and VFL [43]. For ambiguous anchors B, C and D, GFL and VFL
willassignnearlythesameposandnegweightsto{B,D}and{C,
D}, respectively. In contrast, our DW assigns a distinct (pos, neg)
pair for each anchor.