Questions of Loss function calculation about graphcl HOT 3 CLOSED

Hi @cGy147,

Thanks for your interest. Recalling the GraphCL loss is defined as: - log( sim(positive pair) / sum of sim(negative pairs) ), where negative pairs excluding the positive ones (diagonal values of sim_matrix). Thus subtraction is performed here.

from graphcl.

But in your paper:

I think your implemention of your code is different from the equation 3, which consists of 1 positive pair and N-1 negative pairs. Am I misunderstanding?

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Hi @cGy147,

Yeah thanks a lot for pointing this out. The formulation should be corrected. The denominator should be sum^N_{k=1, k \neq i} exp(sim(kth neg pair)/t). I will submit a corrected version arXiv today.

from graphcl.