南京大学学报(自然科学版) ›› 2021, Vol. 57 ›› Issue (2): 318326.doi: 10.13232/j.cnki.jnju.2021.02.017
• • 上一篇
陶砚蕴1, 岳国旗1, 王凯欣1, 张宇祯2(), 蒋彬2, 黄杏梅2
Yanyun Tao1, Guoqi Yue1, Kaixin Wang1, Yuzhen Zhang2(), Bin Jiang2, Xinmei Huang2
摘要:
心律失常是常见的心血管疾病,目前临床软件对其识别的准确率不高,医师复核需要大量时间.针对以上问题,提出时空级联网络(CascadedNet)的心电图识别与心律失常分类模型.CascadedNet的双层级联结构提取心电图心搏形态特征并挖掘节律关联信息,实现异常心搏和异常节律的识别.引入端到端的心搏与节律识别双任务学习方法,使任务间共享特征表达式.CascadedNet在MIT?BIH心律失常数据集上的测试结果表明:CascadedNet比内部算法(支持向量机、朴素贝叶斯网络、梯度上升树和随机森林)的准确率高出19.7%以上;比长短时记忆网络和循环神经网络准确率高出5.23%;与单维卷积网络相比,CascadedNet的总体准确率相当,但召回率和精确度分别高出9.96%和7.94%,且网络复杂度比单维卷积网络更低,结构有更好的可解释性.
中图分类号:
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