优化功能基于融合的修改级联内核极端学习机器,用于在电子医疗保健中预测心脏病
Sumit Kumar1, Kamal Kumar Gola1, Narayan Jee1
1COER University, Roorkee, Uttarakhand, 247667, India.
概括
这项研究引入了一种新的级联极端学习机器,用于准确预测心脏病 (HD),克服常见的计算和准确性挑战. 先进的模型实现了高性能指标,证明了其在临床应用中的有效性.
科学领域:
- 医疗信息学 医疗信息学
- 机器学习 机器学习
- 心血管健康 心血管健康
背景情况:
- 预测心脏病的传统方法面临诸多挑战,包括高计算成本,错误和精度降低.
- 现有的机器学习模型经常在训练效率和数据存储要求方面扎.
研究的目的:
- 提出一个创新的级联极端学习机器 (ELM) 模型,用于增强心脏病预测.
- 通过提高准确性,减少错误和提高培训能力来解决当前方法的局限性.
主要方法:
- 数据预处理涉及缺失的数据过和规范化.
- 特性提取利用了Framingham风险因子模块,然后使用犀牛羊群优化算法进行特征融合和选择.
- 进行分类时使用了 Cascaded 内核软件加上 ELM 与堆叠自动编码器,在 Python 中进行性能分析.
主要成果:
- 拟议的模型在克利夫兰-匈牙利数据集上实现了90%的准确性,94%的精度,91.3%的回忆率和92.6%的F1分数.
- 在单独的心脏病患者数据集上,获得了92.6%的准确性.
- 与现有方法相比,该模型表现出优越的性能,减少了过拟合和改善了融合.
结论:
- 开发的级联ELM模型为心脏病预测提供了强大而有效的解决方案.
- 该模型在准确性,效率和错误减少方面的改进突显了其临床采用潜力.
- 这项研究在应用机器学习用于心血管健康诊断方面取得了重大进展.
相关概念视频
Heart Failure IV: Classification and Diagnostic Evaluation
21
Heart failure can be classified in various ways, with the most common classifications based on physical activity limitations, disease progression, severity, and treatment strategies.The Functional Classification of Heart Failure divides patients into four categories based on physical activity limitation due to symptom burden.Class I: Patients in this class have cardiac disease but no physical activity limitations. Ordinary activities like walking, climbing stairs, or routine tasks do not cause...
21
Heart Failure I: Introduction
24
Heart failure refers to a clinical syndrome caused by structural or functional cardiac disorders that prevent the heart from pumping an adequate amount of blood to meet the body's metabolic needs. This condition often arises from myocardial infarction or ischemia, leading to decreased cardiac output, reduced tissue perfusion, impaired gas exchange, fluid volume imbalance, and decreased functional ability.Heart failure can result from disruptions in the mechanisms that regulate cardiac output...
24
Heart Failure II: Pathophysiology
16
Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
16


