Analysis of acoustic cardiac signals for heart rate variability and murmur detection using nonnegative matrix factorization-based hierarchical decomposition

Ghafoor Shah, Peter Koch, Constantinos B. Papadias

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2 Citations (Scopus)

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.
Original languageEnglish
Title of host publicationBioinformatics and Bioengineering (BIBE), 2014 IEEE 14th International Conference on
PublisherIEEE Computer Society Press
Publication date2014
Pages46-53
DOIs
Publication statusPublished - 2014
Event2014 IEEE International Conference on Bioinformatics and Bioengineering - Boca Raton, Florida, United States
Duration: 10 Nov 201412 Nov 2014
Conference number: 34280

Conference

Conference2014 IEEE International Conference on Bioinformatics and Bioengineering
Number34280
Country/TerritoryUnited States
CityBoca Raton, Florida
Period10/11/201412/11/2014

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