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Dice Loss 最先是在VNet 这篇文章中被提出，后来被广泛的应用在了医学影像分割之中。 1、Dice系数与Dice Loss. Dice系数是一种集合相似度度量函数，通常用于计算两个样本的相似度，取值范围在[0,1]：

In many competitions, papers and projects about medical image segmentation, it is found that Dice coefficient loss function appears more ...

The combination of cross entropy and Dice loss is a popular pairing for loss functions [15]. Alone, the Dice loss is robust to minor class imbalances but ...

11.07.2017 · In order to mitigate this issue, strategies such as the weighted cross-entropy function, the sensitivity function or the Dice loss function, have been proposed. In this work, we investigate the behavior of these loss functions and their sensitivity to learning rate tuning in the presence of different rates of label imbalance across 2D and 3D segmentation tasks.

Another popular loss function for image segmentation tasks is based on the Dice coefficient, (which you have tried already) which is ...

When using cross entropy loss, the statistical distributions of labels play a big role in training accuracy. The more unbalanced the label ...

Combo loss is a combination of Dice Loss and a modified Cross-Entropy function that, like Tversky loss, has additional constants which penalise either false ...

04.01.2018 · I would recommend you to use Dice loss when faced with class imbalanced datasets, which is common in the medicine domain, for example. Also, Dice loss was introduced in the paper "V-Net: Fully Convolutional Neural Networks for Volumetric Medical Image Segmentation" and in that work the authors state that Dice loss worked better than mutinomial …

introduced a new log-cosh dice loss function and compared its performance on NBFS skull-segmentation open source data-set.

01.03.2020 · Therefore, Dice loss considers the loss information both locally and globally, which is critical for high accuracy. The Results Fig.5: results of …

In order to formulate a loss function which can be minimized, we'll simply use 1−Dice. This loss function is known as the soft Dice loss ...

dice_loss_for_keras.py. """. Here is a dice loss for keras which is smoothed to approximate a linear (L1) loss. It ranges from 1 to 0 (no error), and returns results similar to binary crossentropy. """. # define custom loss and metric functions. from keras import backend as K.

19.08.2019 · With a multinomial cross-entropy loss function, this yields okay-ish results, especially considering the sparse amount of training data I´m working …

One compelling reason for using cross-entropy over dice-coefficient or the similar IoU metric is that the gradients are nicer.