Clustering ECG complexes using Hermite functions and self-organizing maps
Lagerholm, M; Peterson, Carsten; Braccini, G.; Edenbrandt, Lars, et al. (2000). Clustering ECG complexes using Hermite functions and self-organizing maps. IEEE Transactions on Biomedical Engineering, 47, (7), 838 - 848
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Published
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English
Authors:
Lagerholm, M
;
Peterson, Carsten
;
Braccini, G.
;
Edenbrandt, Lars
, et al.
Department:
Computational Biology and Biological Physics - Has been reorganised
Nuclear medicine, Malmö
Department of Electrical and Information Technology
Research Group:
Nuclear medicine, Malmö
Abstract:
An integrated method for clustering of QRS complexes is presented which includes basis function representation and self-organizing neural networks (NN's). Each QRS complex is decomposed into Hermite basis functions and the resulting coefficients and width parameter are used to represent the complex. By means of this representation, unsupervised self-organizing NNs are employed to cluster the data into 25 groups. Using the MIT-BIH arrhythmia database, the resulting clusters are found to exhibit a very low degree of misclassification (1.5%). The integrated method outperforms, on the MIT-BIH database, both a published supervised learning method as well as a conventional template cross-correlation clustering method.
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