arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.11834cs.CVcs.AI
收藏

医疗保健用卷积神经网络激活层随机选择的比较

Comparisons among different stochastic selection of activation layers for convolutional neural networks for healthcare

University of Padua(帕多瓦大学);Università di Bologna(博洛尼亚大学)

Loris Nanni, Alessandra Lumini, Stefano Ghidoni, Gianluca Maguolo

摘要:

生物图像的分类是一项重要的任务,在许多领域具有重要的应用,例如细胞表型识别,细胞器检测和组织病理学分类,并且它可能有助于早期医学诊断,允许自动疾病分类而不需要人类专家。在本文中,我们分类生物医学图像使用集成的神经网络。我们使用ResNet 50架构创建了这个集成,并通过用其他函数替换ReLU来修改其激活层。我们在以下几种中选择我们的激活:ReLU,leaky ReLU,Parametric ReLU,ELU,Adaptive Piecewice Linear Unit,S-Shaped ReLU,Swish,Mish,Mexican Linear Unit,Gaussian Linear Unit,Parametric Deformable Linear Unit,Soft Root Sign(SRS)等。作为基线,我们使用了一个只使用ReLU激活的神经网络集合。我们在几个中小型生物医学图像数据集上测试了我们的网络。我们的结果证明,我们的最好的合奏获得了更好的性能比天真的方法。为了鼓励这项工作的可重复性,所有实验的MATLAB代码将在https://github.com/LorisNanni上共享。

英文摘要:

Classification of biological images is an important task with crucial application in many fields, such as cell phenotypes recognition, detection of cell organelles and histopathological classification, and it might help in early medical diagnosis, allowing automatic disease classification without the need of a human expert. In this paper we classify biomedical images using ensembles of neural networks. We create this ensemble using a ResNet50 architecture and modifying its activation layers by substituting ReLUs with other functions. We select our activations among the following ones: ReLU, leaky ReLU, Parametric ReLU, ELU, Adaptive Piecewice Linear Unit, S-Shaped ReLU, Swish , Mish, Mexican Linear Unit, Gaussian Linear Unit, Parametric Deformable Linear Unit, Soft Root Sign (SRS) and others. As a baseline, we used an ensemble of neural networks that only use ReLU activations. We tested our networks on several small and medium sized biomedical image datasets. Our results prove that our best ensemble obtains a better performance than the ones of the naive approaches. In order to encourage the reproducibility of this work, the MATLAB code of all the experiments will be shared at https://github.com/LorisNanni.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑