为了稳固的心电图分类,设计相对网络架构
Christopher Wiedeman1, Ge Wang2
1Department of Electrical and Computer Systems Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.
Patterns (New York, N.Y.)
|January 8, 2025
概括
这项研究引入了一种新的组合方法,使用特征去关系和富里埃分区来增强人工智能 (AI) 对医疗任务的信任. 这种方法改善了AI.
科学领域:
- 人工智能在医学中的应用
- 机器学习安全 机器学习安全
- 信号处理 信号处理
背景情况:
- 值得信赖的AI对于患者关键的医疗应用至关重要.
- 目前用于不确定性估计的集合方法容易受到对抗性攻击.
- 整体模型之间的共同漏洞限制了它们的稳定性.
研究的目的:
- 为AI在医疗任务中开发一种强大的整体方法.
- 增强AI识别不确定性和抵制对抗攻击的能力.
- 提高AI在患者关键应用中的可靠性.
主要方法:
- 提出了一种组合方法,将特征对比和富里埃分区结合起来.
- 训练有素的网络学习各种特征,减少对干扰的敏感性.
- 对心电图 (ECG) 数据的白盒对抗性攻击进行了测试.
- 适应对抗训练和DVERGE用于组合比较.
主要成果:
- 折叠关系和富里埃分区组合在未被干扰的数据上保持了性能.
- 针对预计的梯度下降和平稳的对抗性攻击,证明了优越的不确定性估计.
- 该方法显示了对不同规模的对抗性攻击的稳定性.
- 在培训期间不需要昂贵的对抗样本优化.
结论:
- 拟议的组合方法增强了AI在医疗任务中的稳定性和不确定性估计.
- 特征脱关系和富里埃分区有效地减少了对敌对攻击的脆弱性.
- 这种方法提供了一种更可靠,更有效的方法,可以为医疗保健建立值得信赖的AI.
- 这些方法适用于其他需要强大的AI模型的领域.
相关概念视频
01:25Correlation between ECG and Cardiac Cycle
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The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
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01:28Electrocardiogram Fundamentals
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Introduction
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
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01:29Electrocardiogram
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An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
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01:30Classification of Signals
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01:30Pulse rhythm
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Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
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