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Article type: Research Article
Authors: Wu, Panpana; 1 | Qu, Yuea; 1 | Zhao, Zipinga; * | Cui, Yuea | Xu, Yuroua | An, Penga | Yu, Hengyongb; *
Affiliations: [a] College of Computer and Information Engineering, Tianjin Normal University, Tianjin, China | [b] Department of Electrical and Computer Engineering, University of Massachusetts Lowell, Lowell, MA, USA
Correspondence: [*] Corresponding author: Ziping Zhao, College of Computer and Information Engineering, Tianjin Normal University, Tianjin 300387, China. E-mail: zhaoziping@tjnu.edu.cn and Hengyong Yu, Department of Electrical and Computer Engineering, University of Massachusetts Lowell, Lowell, MA 01854, USA. E-mail: hengyong-yu@ieee.org.
Note: [1] These authors contributed equally to this work.
Abstract: Diabetic retinopathy (DR) is one of the leading causes of blindness. However, because the data distribution of classes is not always balanced, it is challenging for automated early DR detection using deep learning techniques. In this paper, we propose an adaptive weighted ensemble learning method for DR detection based on optical coherence tomography (OCT) images. Specifically, we develop an ensemble learning model based on three advanced deep learning models for higher performance. To better utilize the cues implied in these base models, a novel decision fusion scheme is proposed based on the Bayesian theory in terms of the key evaluation indicators, to dynamically adjust the weighting distribution of base models to alleviate the negative effects potentially caused by the problem of unbalanced data size. Extensive experiments are performed on two public datasets to verify the effectiveness of the proposed method. A quadratic weighted kappa of 0.8487 and an accuracy of 0.9343 on the DRAC2022 dataset, and a quadratic weighted kappa of 0.9007 and an accuracy of 0.8956 on the APTOS2019 dataset are obtained, respectively. The results demonstrate that our method has the ability to enhance the ovearall performance of DR detection on OCT images.
Keywords: Diabetic retinopathy, ensemble learning, decision fusion
DOI: 10.3233/XST-230252
Journal: Journal of X-Ray Science and Technology, vol. 32, no. 2, pp. 285-301, 2024
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