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arXiv 2008.02731cs.LGstat.ML
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冠心病危险度的判别神经网络分析

Analysing Risk of Coronary Heart Disease through Discriminative Neural Networks

Vellore Institute of Technology(韦洛尔理工学院);Centre for Development of Advanced Computing(高级计算发展中心)

Ayush Khaneja, Siddharth Srivastava, Astha Rai, A S Cheema, P K Srivastava

摘要:

数据采掘、机器学习和人工智能技术在诊断领域的应用并不是一个新概念,这些技术已经非常成功地应用于各种应用,特别是在皮肤病学和癌症研究中。但是,在涉及导致真或假的测试(二元分类)的医疗问题的情况下,数据通常具有类别不平衡,样本主要属于一个类别(例如:患者接受定期测试,结果是假的)。当试图根据数据对预测系统进行建模时,数据中的这种差异会导致问题。在诊断等关键应用中,这种类别不平衡不容忽视,必须给予额外的关注。在我们的研究中,我们描述了如何通过使用判别模型的神经网络和使用连体神经网络结构的对比损失来处理这种类别不平衡。这样的模型不适用于基于概率的方法来将样本分类为标签。相反,它使用基于距离的方法来区分分类在不同标签下的样本。代码可在https://tinyurl.com/DiscriminativeCHD/上获得

英文摘要:

The application of data mining, machine learning and artificial intelligence techniques in the field of diagnostics is not a new concept, and these techniques have been very successfully applied in a variety of applications, especially in dermatology and cancer research. But, in the case of medical problems that involve tests resulting in true or false (binary classification), the data generally has a class imbalance with samples majorly belonging to one class (ex: a patient undergoes a regular test and the results are false). Such disparity in data causes problems when trying to model predictive systems on the data. In critical applications like diagnostics, this class imbalance cannot be overlooked and must be given extra attention. In our research, we depict how we can handle this class imbalance through neural networks using a discriminative model and contrastive loss using a Siamese neural network structure. Such a model does not work on a probability-based approach to classify samples into labels. Instead it uses a distance-based approach to differentiate between samples classified under different labels. The code is available at https://tinyurl.com/DiscriminativeCHD/

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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