Tsochatzidis Lazaros, Costaridou Lena, Pratikakis Ioannis
Visual Computing Group, Department of Electrical and Computer Engineering, Democritus University of Thrace, 67100 Xanthi, Greece.
Department of Medical Physics, School of Medicine, University of Patras, 26504 Patras, Greece.
J Imaging. 2019 Mar 13;5(3):37. doi: 10.3390/jimaging5030037.
Deep convolutional neural networks (CNNs) are investigated in the context of computer-aided diagnosis (CADx) of breast cancer. State-of-the-art CNNs are trained and evaluated on two mammographic datasets, consisting of ROIs depicting benign or malignant mass lesions. The performance evaluation of each examined network is addressed in two training scenarios: the first involves initializing the network with pre-trained weights, while for the second the networks are initialized in a random fashion. Extensive experimental results show the superior performance achieved in the case of fine-tuning a pretrained network compared to training from scratch.
在乳腺癌计算机辅助诊断(CADx)的背景下,对深度卷积神经网络(CNN)进行了研究。在两个乳腺X线摄影数据集上对先进的CNN进行了训练和评估,这些数据集由描绘良性或恶性肿块病变的感兴趣区域(ROI)组成。在两种训练场景下对每个被检查网络进行性能评估:第一种是使用预训练权重初始化网络,而第二种是随机初始化网络。大量实验结果表明,与从头开始训练相比,微调预训练网络的情况下能取得更优的性能。