why use the same compute_dist way in both selftraining.py and semitraining.py?

[NothingToSay99]

I am confused that why computing the distance between the source features and target ones in SSG in your codes. And it is similar to SSG+. Isn`t it that Self-similarity Grouping is just about target features grouping?
if you could, please point out my mistakes in the comprehension of your paper or code.

thanks for your great works!

[lxc86739795]

I have the same question.
Hope to meet the authors at ICCV19.