It seems a typo in the equation (4) of the paper

[thangvubk]

It seems a minus is missing in eq (4) - the MarginRankingLoss. It should be max(0, -(s1 − s2) ∗ γ + ε).

[WenlongZhang0517]

I'm sorry for this writing mistake. I will correct it in Arxiv version and clarify it in the project page. Thanks very much.