Abstract
The detection of heart rate variability (HRV) via cardiac auscultation examination can
be a useful and inexpensive tool which, however, is challenging in the presence of pathological
signals and murmurs. The aim of this research is to analyze acoustic cardiac signals for HRV and
murmur detection. A novel method based on hierarchical decomposition of the single channel
mixture using various nonnegative matrix factorization techniques is proposed, which provides
unsupervised clustering of the underlying component signals. HRV is determined over the
recovered normal cardiac acoustic signals. This novel decomposition technique is compared
against the state-of-the-art techniques; experiments are performed using real-world clinical data,
which show the potential significance of the proposed technique.
be a useful and inexpensive tool which, however, is challenging in the presence of pathological
signals and murmurs. The aim of this research is to analyze acoustic cardiac signals for HRV and
murmur detection. A novel method based on hierarchical decomposition of the single channel
mixture using various nonnegative matrix factorization techniques is proposed, which provides
unsupervised clustering of the underlying component signals. HRV is determined over the
recovered normal cardiac acoustic signals. This novel decomposition technique is compared
against the state-of-the-art techniques; experiments are performed using real-world clinical data,
which show the potential significance of the proposed technique.
Original language | English |
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Title of host publication | Bioinformatics and Bioengineering (BIBE), 2014 IEEE 14th International Conference on |
Publisher | IEEE Computer Society Press |
Publication date | 2014 |
Pages | 46-53 |
DOIs | |
Publication status | Published - 2014 |
Event | 2014 IEEE International Conference on Bioinformatics and Bioengineering - Boca Raton, Florida, United States Duration: 10 Nov 2014 → 12 Nov 2014 Conference number: 34280 |
Conference
Conference | 2014 IEEE International Conference on Bioinformatics and Bioengineering |
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Number | 34280 |
Country/Territory | United States |
City | Boca Raton, Florida |
Period | 10/11/2014 → 12/11/2014 |