Pre-training ten DNN architectures on knowledge-driven synthetic ECGs generated via Gaussian PQRST wave composition improves classification of AF, AFLT, PVC, and WPW, with largest gain of 33.2% for AFLT and stronger benefits on smaller real datasets.
General-to-Detailed GAN for Infrequent Class Medical Images
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abstract
Deep learning has significant potential for medical imaging. However, since the incident rate of each disease varies widely, the frequency of classes in a medical image dataset is imbalanced, leading to poor accuracy for such infrequent classes. One possible solution is data augmentation of infrequent classes using synthesized images created by Generative Adversarial Networks (GANs), but conventional GANs also require certain amount of images to learn. To overcome this limitation, here we propose General-to-detailed GAN (GDGAN), serially connected two GANs, one for general labels and the other for detailed labels. GDGAN produced diverse medical images, and the network trained with an augmented dataset outperformed other networks using existing methods with respect to Area-Under-Curve (AUC) of Receiver Operating Characteristic (ROC) curve.
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cs.LG 1years
2026 1verdicts
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Boosting ECG Classification Performance by Pre-training with Synthesized Data
Pre-training ten DNN architectures on knowledge-driven synthetic ECGs generated via Gaussian PQRST wave composition improves classification of AF, AFLT, PVC, and WPW, with largest gain of 33.2% for AFLT and stronger benefits on smaller real datasets.