J Korean Soc Med Inform Search


Healthc Inform Res > Volume 10(2); 2004 > Article
Journal of Korean Society of Medical Informatics 2004;10(2):191-200.
DOI: https://doi.org/10.4258/jksmi.2004.10.2.191    Published online June 30, 2004.
Effect of Attractor Construction Methods to Fractal Dimension for Heart Sound Analysis
Youngshin Lee, Hyeyoung Kim, Taesik Kim
1Department of Computer Engineering, Keimyung University, Korea.
2Department of Nursing, Catholic Sangji College, Korea.

Strange attractor can be constructed from time series data such as heart sound. In the areas of the recognition and diagnosis of abnormal heart sounds, signal presentation method is very useful because good features can be detected from good presentation. This paper examines efficiency in diagnosing abnormal heart sounds of the two different methods for constructing attractor. Nine different heart sounds from typical clinical conditions were used for this study. The first method was constructing attractors using original heart sounds, and the second was modifying the original sounds by autocorrelation and they were then applied to the orignal sounds as to cross correlation checks. Attractors could be constructed using signals generated by these methods, and values of fractal dimensions would then be calculated which has been a well known method to measure characteristics of attractors. The results showed that the second method appeared to provide more efficient way to correctly classify abnormal heart sounds.

Key Words: Strange Attractor, Heart Sound, Chaos, Fractal Dimension
Share :
Facebook Twitter Linked In Google+ Line it
METRICS Graph View
  • 0 Crossref
  • 240 View
  • 0 Download
Related articles in Healthc Inform Res


Browse all articles >

Editorial Office
1618 Kyungheegung Achim Bldg 3, 34, Sajik-ro 8-gil, Jongno-gu, Seoul 03174, Korea
Tel: +82-2-733-7637, +82-2-734-7637    E-mail: hir@kosmi.org                

Copyright © 2020 by Korean Society of Medical Informatics. All rights reserved.

Developed in M2community

Close layer
prev next