A Comparison of Statistical Machine Learning Methods in Heartbeat Detection and Classification
In health care, patients with heart problems require quick responsiveness in a clinical setting or in the operating theatre. Towards that end, automated classification of heartbeats is vital as some heartbeat irregularities are time consuming to detect. Therefore, analysis of electro-cardiogram (ECG) signals is an active area of research. The methods proposed in the literature depend on the structure of a heartbeat cycle. In this paper, we use interval and amplitude based features together with a few samples from the ECG signal as a feature vector. We studied a variety of classification algorithms focused especially on a type of arrhythmia known as the ventricular ectopic fibrillation (VEB). We compare the performance of the classifiers against algorithms proposed in the literature and make recommendations regarding features, sampling rate, and choice of the classifier to apply in a real-time clinical setting. The extensive study is based on the MIT-BIH arrhythmia database. Our main contribution is the evaluation of existing classifiers over a range sampling rates, recommendation of a detection methodology to employ in a practical setting, and extend the notion of a mixture of experts to a larger class of algorithms.
KeywordsHeart arrhythmia ECG Classification Mixture of Experts
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- 1.Goldberger, A.L., Amaral, L.A.N., Glass, L., Hausdorff, J.M., Ivanov, P.C., Mark, R.G., Mietus, J.E., Moody, G.B., Peng, C.-K., Stanley, H.E.: PhysioBank, PhysioToolkit, and PhysioNet: Components of a new research resource for complex physiologic signals. Circulation 101(23), e215–e220 (2000)Google Scholar
- 3.Mark, R., Wallen, R.: AAMI-recommended practice: testing and reporting performance results of ventricular arrhythmia detection algorithms. Tech. Rep. AAMI ECAR (1987)Google Scholar
- 6.Tan, P.N., Steinbach, M., Kumar, V.: Introduction to Data Mining. Addison-Wesley (2005)Google Scholar
- 7.Alvarado, A.S., Lakshminarayan, C., Principe, J.C.: Time-based Compression and Classification of Heartbeats. IEEE Transactions on Biomedical Engineering 99 (2012)Google Scholar
- 9.Mark, R., Moody, G.: MIT-BIH Arrhythmia Database (May 1997), http://ecg.mit.edu/dbinfo.html
- 10.Wiens, J., Guttag, J.: Active learning applied to patient-adaptive heartbeat classification. In: Lafferty, J., Williams, C.K.I., Shawe-Taylor, J., Zemel, R., Culotta, A. (eds.) Advances in Neural Information Processing Systems, vol. 23, pp. 2442–2450 (2010)Google Scholar