What is the format of indices_tuple in contrastive loss, Tuplemarginal loss etc ?

[1hansir]

What is the format of indices_tuple in contrastive loss, Tuplemarginal loss etc ?

[KevinMusgrave]

For pair-based losses like ContrastiveLoss, MultiSimilarityLoss etc see this post: #435 (comment)

For triplet-based losses, the format is (a, p, n) where a contains the anchor indices, p contains the positive indices, and n contains the negative indices.