Empirical Investigation of Consensus Clustering for large ECG Data Sets

Andrei Kelarev, Andrew Stranieiri, John Yearwood, Herbert Jelinek

Research output: Book chapter/Published conference paperConference paperpeer-review

7 Citations (Scopus)

Abstract

This article investigates a novel machine learning approach applying consensus clustering in conjunction with classification for the data mining of very large and highly dimensional ECG data sets. To obtain robust and stable clusterings, consensus functions can be applied for clustering ensembles combining a multitude of independent initial clusterings. Direct applications of consensus functions to highly dimensional ECG data sets remain computationally expensive and impracticable. We introduce a multistage scheme including various procedures for dimensionality reduction, consensus clustering of randomized samples, followed by the use of a fast supervised classification algorithm. Applying the Hybrid Bipartite Graph Formulation combined with rank ordering and SMO we obtained an area under the receiver operating curve of 0.987. The performance of the classification algorithm at the final stage is crucial for the effectiveness of this technique. It can be regarded as an indication of the reliability, quality and stability of the combined consensus clustering.
Original languageEnglish
Title of host publicationProceedings of CBMS 2012
Subtitle of host publicationThe 25th IEEE International Symposium on Computer-Based Medical Systems
EditorsPaolo Soda, Francesco Tortorella, Sameer Antani, Mykola Pechenizkiy, Mario Cannataro, Alexey Tsymbal
Place of PublicationUnited States
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages1-4
Number of pages4
ISBN (Electronic)9781467320511
DOIs
Publication statusPublished - 2012
Event25th IEEE International Symposium on Computer-Based Medical Systems: CBMS 2012 - Universita Campus Bio-Medico di Roma, Rome, Italy
Duration: 20 Jun 201222 Jun 2012
https://web.archive.org/web/20120501142858/http://www.cbms2012.org/ (Conference website)

Conference

Conference25th IEEE International Symposium on Computer-Based Medical Systems
Country/TerritoryItaly
CityRome
Period20/06/1222/06/12
OtherCBMS 2012 will provide an international forum for discussing the latest developments in the field of computational medicine, biomedical informatics and related fields. The conference is part of the Bioengineering Week, an exciting week totally dedicated to bioengineering research, featuring a unique concentration of several scientific, cultural and educational events, mostly taking place in Rome.
Internet address

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