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This repo contains the code for our paper "A novel focal Tversky loss function and improved Attention U-Net for lesion segmentation" accepted at IEEE ISBI 2019.

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Hi, When you've written the loss functions, did you calculate with batch data? E.g. reading your tversky loss implementation, I think you've accidentally summed up everything aggregated over the batch...

Can we use the tversky loss for multiple classes ? Or do we have to make changes accordingly.

Hi, thanks for your work. I have succeeded to run the code. But when I ran it in a new GPU, the data, the code, all the same. However, during...

thanks for your work. I have encountered an issue that when I training the model with my own data, the dsc and val_dsc during training is bigger than 1? if...

https://github.com/nabsabraham/focal-tversky-unet/blob/347d39117c24540400dfe80d106d2fb06d2b99e1/newmodels.py#L268 Hi, thanks for publishing code. I think you made a typo in line 268 in file newmodels.py. I sure it must be: `g3 = UnetGatingSignal(up2, is_batchnorm=True, name='g3')`, can you...

Hi and thanks for open sourcing the code. I have been testing out proposed model `attn_reg` on images with sizes `128x1024x1`. Everything runs well until after a few epochs there's...

Hello, I was just reading your paper and came across the statement "Both models were optimized using stochastic gradient descent with momentum, using an initial learning rate at 0.01 which...

Please tell me whether you have used a batch size of 16 or 8 with ISIC 2018 datatset Because in paper you have mentioned that you are using batch size...

![results](https://user-images.githubusercontent.com/62274255/79558524-b742bd00-80bd-11ea-8ece-59d1044e0f7a.png) i,m trying to run the code using ISIC 2018 dataset, i,m getting the following error: File "C:\Users\LaeeqAhmed\.spyder-py3\isic_train.py", line 146, in precision, recall, thresholds = precision_recall_curve(y_true, y_preds) File "C:\Users\LaeeqAhmed\anaconda3\envs\tensorflow\lib\site-packages\sklearn\metrics\_ranking.py", line...