Title :
Active subset selection approach to nonlinear modeling of ECG data
Author :
Merkwirth, C. ; Wichard, J.D. ; Ogorzalek, M.J.
Author_Institution :
Comp. Biol. & Appl. Algorithmics Group, Max-Planck-Inst. fur Inf., Saarbrucken, Germany
Abstract :
In this article we report results concerning an ensembling approach for regression modeling which could be used for data compression and prediction. We train a sequence of models on small subsets of a large data set in order to achieve small computation time and memory consumption. An active learning approach is used to increase the training subset iteratively to cover the full dynamics of the data set without using all observations for the actual training. The algorithm is part of a software toolbox for ensemble regression modeling that is used to demonstrate the performance of this method on examples of measured ECG time series.
Keywords :
biomedical measurement; computational complexity; electrocardiography; medical signal processing; software tools; statistical analysis; time series; ECG time series; active learning approach; active subset selection approach; computation time; data compression; data prediction; data set dynamics; data set subsets; ensemble regression modeling; iteratively increased training subset; memory consumption; model sequence training; nonlinear ECG data modeling; observations; regression modeling; software toolbox; Biological system modeling; Boosting; Computational biology; Data compression; Decorrelation; Electrocardiography; Iterative algorithms; Predictive models; Sequences; Software algorithms;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205130