Question on Anchor

[ZhongyuanW]

Hi! Thank you for your code.
And I want to ask you somthing about the Anchors Size.How dou you select the Anchor Size?From you code, the Anchors are [[1, 2], [1, 3], [2, 1], [3, 1], [1, 1]].

But when I train it on Voc 2007,i got the abnormal loss.

So I think wheather it is caused by the Anchors?And how do you train it?
thanks.