Hi there, I'm Zichen ๐
- ๐ญ Iโm currently working on Machine Learning in Healthcare
- ๐ฑ Iโm currently learning causal inference
Experiments with supervised contrastive learning methods with different loss functions
Hi, it is strange when using custom dataset the loss is nan (I just tried supervised_nt_xent_loss and max_margin_contrastive_loss). do you have any idea ?
thanks
Hi @wangz10,
Thank you for putting together this repository and also the blog post. After going through the code, I had the following doubts. If you could help me clarify I would really appreciate it:
max_margin_contrastive_loss
function, it would be very helpful.Thank you and looking forward to hearing from you.
Thanks for your sharing. I have some trouble in logits_mask.
`
# mask-out self-contrast cases
logits_mask = torch.scatter(
torch.ones_like(mask),
1,
torch.arange(batch_size * anchor_count).view(-1, 1).to(device),
0
)
mask = mask * logits_mask
# compute log_prob
exp_logits = torch.exp(logits) * logits_mask
#
log_prob = logits - torch.log(exp_logits.sum(1, keepdim=True))
`
logits_mask is used to filter out the negative pairs, why not the ~mask but one matrix with the diagonals 0 and the others are 1 ?
Why do need base_temperature when calculating the loss?
Hi ,
Thanks for this implimentation . i like to know how to monitor stage 1 training . i am applying this concept for a custom data for image classification. i the visualized projection are not getting grouped together even after running for 50-60 epoch . can you share some idea on how to monitor. also my batch size id limited to 12 because of GPU limitation . do you think this is am issue ?
thanks
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