yunshengb/SimGNN

I have a question about batches

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Hi,
In the paper, I found that batch_size is set to 128.
Does a sample of one batch represent 128 graph pairs or 128 individual graphs? If it is the former, it indicates that there are only 128 training sessions in a batch, while the latter indicates that there are 173,755 training sessions because the similarity is calculated pairwise.
This question has puzzled me for a long time, and I hope you can answer it. Thank you very much!