* V2 updates the evaluation results of all methods on the ECSSD dataset
(Table. 3 on Page. 8). In V1 we used the old version of ground-truths of
ECSSD, which were updated later by its authors. In V2 we use the updated ones
instead. Although the numerical evaluation scores of all methods on ECSSD in
V1 and V2 vary slightly, the overall trending is still the same Access Paper or Ask Questions