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@AlexeyAB You gave an implementation of focal loss in the yolo layer (6056b83#diff-180a7a56172e12a8b79e41ec95ae569dR121).
### Question 1
Is this the full code of focal loss for Yolo v3?
Accordin…
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when i change softmaxwithloss to focal-loss, in the beginning of training, the loss becomes 87.3365.
When using softmaxwithloss, there is no such a problem.
Is the code still under the testing pha…
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Hi,
Is there any implementation of Focal Loss in Keras or an ongoing effort? I really appreciate cooperation in such a work, please e-mail me if so.
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Hi, have you compared the performance between Focal Loss and OHEM? If you have, which is the better one?
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hello , i read your code ,i have an issue in loss.py, line 88-90:
` cl = -(judge_matrix * torch.log(possibility_matrix) + (1.0 - judge_matrix) * torch.log(1.0 - possibility_matrix))
c…
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Hello, guys.
Well done!
I have a quick question about `sigmoid_focal_loss` as follows:
https://github.com/IDEACVR/DINO/blob/67bbcd97ef30a48cf343b7b0f3ad9ea0795b6fcd/models/dino/dino.py#L379
…
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class FocalLoss(nn.Module):
def __init__(self, gamma=2, alpha=1.0, size_average=True):
super(FocalLoss, self).__init__()
self.gamma = gamma
self.alpha = alpha
…
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In function `loss_layer()`, I find out that you use a coefficient `conf_focal`.
I would like to know is this a Focal Loss? Why `alpha` in focal loss is always 1?
Thanks
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Has anyone ever use focal loss with ssd framework to solve the hard example probem,can you please share how it works with me.Thanks!
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## 🚀 Feature
Define an official multi-class focal loss function
## Motivation
Most object detectors handle more than 1 class, so a multi-class focal loss function would cover more use-cases t…