Title
P3sgd: Patient Privacy Preserving Sgd For Regularizing Deep Cnns In Pathological Image Classification
Abstract
Recently, deep convolutional neural networks (CNNs) have achieved great success in pathological image classification. However, due to the limited number of labeled pathological images, there are still two challenges to be addressed: (1) overfitting: the performance of a CNN model is undermined by the overfitting due to its huge amounts of parameters and the insufficiency of labeled training data. (2) privacy leakage: the model trained using a conventional method may involuntarily reveal the private information of the patients in the training dataset. The smaller the dataset, the worse the privacy leakage.To tackle the above two challenges, we introduce a novel stochastic gradient descent (SGD) scheme, named patient privacy preserving SGD (P3SGD), which performs the model update of the SGD in the patient level via a large-step update built upon each patient's data. Specifically, to protect privacy and regularize the CNN model, we propose to inject the well-designed noise into the updates. Moreover, we equip our P3SGD with an elaborated strategy to adaptively control the scale of the injected noise. To validate the effectiveness of P3SGD, we perform extensive experiments on a real-world clinical dataset and quantitatively demonstrate the superior ability of P3SGD in reducing the risk of overfitting. We also provide a rigorous analysis of the privacy cost under differential privacy. Additionally, we find that the models trained with P3SGD are resistant to the model-inversion attack compared with those trained using non-private SGD.
Year
DOI
Venue
2019
10.1109/CVPR.2019.00220
2019 IEEE/CVF CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION (CVPR 2019)
Field
DocType
Volume
Training set,Stochastic gradient descent,Differential privacy,Convolutional neural network,Computer science,Patient privacy,Artificial intelligence,Overfitting,Contextual image classification,Private information retrieval,Machine learning
Journal
abs/1905.12883
ISSN
Citations 
PageRank 
1063-6919
1
0.36
References 
Authors
0
7
Name
Order
Citations
PageRank
Bingzhe Wu1186.41
Shiwan Zhao231817.41
Guangyu Sun31920111.55
Xiaolu Zhang436.15
Zhong Su52282110.39
Caihong Zeng611.03
Zhihong Liu7104.39