面向类别不平衡ECG的快速患者间域适应心律失常识别方法

冯建超; 吴龙文; 王琪; 李涵; 何欣; 赵雅琴

doi:10.12263/DZXB.20251121

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面向类别不平衡ECG的快速患者间域适应心律失常识别方法

学术论文 | 更新时间：2026-05-28

- 面向类别不平衡ECG的快速患者间域适应心律失常识别方法
- A Fast Inter-Patient Domain-Adaptive Arrhythmia Detection Method for Class-Imbalanced ECG Data
- 电子学报 2026年54卷第2期页码：684-697
- 作者机构：
  
  1.哈尔滨工业大学电子与信息工程学院，黑龙江哈尔滨 150001
  2.哈尔滨工业大学郑州研究院，河南郑州 450008
  3.中国兵器工业集团航空弹药研究院有限公司，黑龙江哈尔滨 150030
- 作者简介：
  
  [ "冯建超男，1999年7月生，云南祥云人。哈尔滨工业大学电子与信息工程学院博士研究生。主要研究方向为人工智能与机器学习、生物医学信号处理。E-mail: 25B905065@stu.hit.edu.cn" ]
  [ "吴龙文男，1988年9月生，江西樟树人。博士，哈尔滨工业大学高级工程师。主要研究方向为辐射源识别、辐射源个体识别、无源定位、医学信号处理。中国电子学会会员编号：E190036434M。E-mail: wulongwen@hit.edu.cn" ]
  [ "王琪男，1988年3月生，山东济宁人。中国兵器工业集团航空弹药研究院有限公司高级工程师，哈尔滨工业大学电子与信息工程学院博士研究生。主要研究方向为高超声速飞行器多物理场耦合力学。中国电子学会会员编号：E190000000N。E-mail: genius@uestc.edu.cn" ]
  [ "李涵男，2006年8月生，河南周口人。哈尔滨工业大学电子与信息工程学院本科生。主要研究方向为生物医学信号处理、毫米波雷达。E-mail: lihan.hnzk@stu.hit.edu.cn" ]
  [ "何欣女，1994年1月生，黑龙江齐齐哈尔人。博士，哈尔滨工业大学副研究员。主要研究方向为遥感图像智能处理。在国内外发表学术论文120余篇。中国电子学会会员编号：E190035066M。E-mail: hexin1@hit.edu.cn" ]
  [ "赵雅琴女，1976年2月生，黑龙江兰西人。博士，哈尔滨工业大学教授。主要研究方向为辐射源识别、辐射源个体识别、无源定位、光通信、医学信号处理。中国电子学会会员编号：E190012844S。E-mail: yaqinzhao@hit.edu.cn" ]
- 基金信息：
  
  国家自然科学基金(62571163;62571167;62071153)
- DOI：10.12263/DZXB.20251121
  中图分类号： TP183;R541.7
- 收稿：2025-01-13，
  
  录用：2026-02-02，
  
  纸质出版：2026-02-25
- 稿件说明：
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冯建超, 吴龙文, 王琪, 等. 面向类别不平衡ECG的快速患者间域适应心律失常识别方法[J]. 电子学报, 2026, 54(02): 684-697.

FENG Jianchao, WU Longwen, WANG Qi, et al. A Fast Inter-Patient Domain-Adaptive Arrhythmia Detection Method for Class-Imbalanced ECG Data[J]. Acta Electronica Sinica, 2026, 54(02): 684-697.
冯建超, 吴龙文, 王琪, 等. 面向类别不平衡ECG的快速患者间域适应心律失常识别方法[J]. 电子学报, 2026, 54(02): 684-697. DOI：10.12263/DZXB.20251121

FENG Jianchao, WU Longwen, WANG Qi, et al. A Fast Inter-Patient Domain-Adaptive Arrhythmia Detection Method for Class-Imbalanced ECG Data[J]. Acta Electronica Sinica, 2026, 54(02): 684-697. DOI：10.12263/DZXB.20251121

摘要

心律失常作为心血管疾病中诱发心源性猝死的关键诱因，其早期精准识别与动态分类对改善患者预后具有重要临床意义。然而，受个体差异、采集设备差异及采集环境变化等因素影响，不同患者及不同数据库之间的心电图（ElectroCardioGram， ECG）信号普遍存在显著的域偏移问题；同时，临床ECG数据中普遍存在类别分布高度不平衡的现象，严重制约了现有模型在跨患者、跨数据库场景下的泛化性能。针对上述问题，本文提出了一种面向类别不平衡ECG信号的轻量级快速患者间域适应心律失常识别框架。首先，在特征层面，本文提出了一种基于宽度学习系统（Broad Learning System，BLS）的特征分布域适应方法BLS-FDDA（BLS-Feature Distribution Domain Adaptation），基于协方差归一化和分布重构技术，深入分析了源域与目标域特征之间的偏移问题，成功实现了源目标域特征空间的对齐。该方法通过对BLS特征扩展矩阵的分布对齐，避免了传统深度学习框架中对复杂模型的依赖，并保证了特征信息的有效传递。其次，在数据层面，本文进一步提出了一种可逆数据域适应方法BLS-DRDA（BLS-Data Reversible Domain Adaptation），结合误差扰动理论，深入推导了源域与目标域之间的数据变换关系。基于这一理论推导，该方法实现了在不重新训练BLS主模型的情况下，快速适应新数据域，大幅降低了迁移成本。此外，BLS-DRDA方法在数据变换中保持了原始信号的判别能力，并有效避免了信息失真。在决策层，针对心律失常数据中类别分布高度不均衡的问题，设计了一种代价敏感判决算法，该算法通过引入类别中心距离和样本分布权重的概念，建立了一个加权决策机制，有效缓解了少数类样本在跨域迁移中的误判问题。最后，在MIT-BIH与INCART公开数据库构建的多患者、多数据库及连续域迁移实验中，所提方法在准确率、F1值及G_mean等指标上均取得接近100%的识别性能，显著优于原始宽度学习模型及多种对比方法。理论分析与实验结果表明，所提出的BLS-FDDA和BLS-DRDA方法在多源数据、跨设备以及连续域适应场景中均表现出优越的性能，验证了该框架在复杂临床ECG应用中的有效性与实用性，特别是在多类别患者间心律失常的识别任务中，所提方法显著提升了少数类的识别能力，并在复杂域偏移和类别不平衡问题下展现出极强的鲁棒性。

Abstract

Arrhythmia

as a key trigger for sudden cardiac death in cardiovascular diseases

holds significant clinical importance for improving patient outcomes through its early

precise identification and dynamic classification. However

due to factors such as individual variability

differences in recording devices

and variations in recording environments

significant domain shift issues are prevalent across ECG signals from different patients and databases. Additionally

clinical ECG data commonly exhibit highly imbalanced class distributions

severely limiting the generalization performance of existing models across patients and databases. To address these challenges

this paper proposes a lightweight

fast inter-patient domain adaptation framework for arrhythmia recognition tailored to class-imbalanced ECG signals. First

at the feature level

we introduce BLS-FDDA (broad learning system-feature distribution domain adaptation)

a domain adaptation method based on the broad learning system (BLS). By leveraging covariance normalization and distribution reconstruction techniques

it thoroughly analyzes the offset between source and target domain features

successfully aligning their feature spaces. By aligning the distributions of the BLS feature expansion matrix

this method avoids reliance on complex models inherent in traditional deep learning frameworks while ensuring effective feature information transfer. Second

at the data level

this paper further proposes a reversible data domain adaptation method

BLS-DRDA (BLS-data reversible domain adaptation). Integrating error perturbation theory

it derives the data transformation relationship between source and target domains. Based on this theoretical derivation

the method achieves rapid adaptation to new data domains without retraining the BLS main model

significantly reducing transfer costs. Moreover

BLS-DRDA preserves the discriminative capability of the original signal during data transformation while effectively preventing information distortion. At the decision layer

addressing the severe class imbalance in arrhythmia data

a cost-sensitive decision algorithm is designed. By introducing concepts of class center distance and sample distribution weights

this algorithm establishes a weighted decision mechanism that effectively mitigates misclassification issues of minority samples during cross-domain transfer. Finally

multi-patient

multi-database

and continuous domain transfer experiments conducted on the MIT-BIH and INCART public datasets demonstrate that the proposed methods achieve recognition performance approaching 100% in metrics such as accuracy

F1_score

and G_mean

significantly outperforming the original width learning model and various comparative methods. Theoretical analysis and experimental results demonstrate that the proposed BLS-FDDA and BLS-DRDA methods exhibit superior performance across multi-source data

cross-device

and continuous domain adaptation scenarios. This validates the framework’s effectiveness and practicality in complex clinical ECG applications

particularly in the task of identifying arrhythmias across multiple patient categories. The proposed methods substantially enhance recognition capabilities for minority classes and demonstrate exceptional robustness under complex domain shifts and class imbalance challenges.

关键词

Keywords

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