한국지능시스템학회논문지 (Journal of the Korean Institute of Intelligent Systems)

  • 제16권3호
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  • Pages.378-382
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  • 2006
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  • 1976-9172(pISSN)
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  • 2288-2324(eISSN)
한국지능시스템학회 (Korean Institute of Intelligent Systems)
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NEWFM을 이용한 자동 조기심실수축 탐지

Automatic Premature Ventricular Contraction Detection Using NEWFM

  • 임준식 (경원대학교 전자거래학부)
  • Lim Joon-Shik (Department of E-Commerce Software, Kyungwon University)
  • 발행 : 2006.06.01
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초록

본 논문은 가중 퍼지소속함수 기반 신경망(neural network with weighted fuzzy membership functions, NEWFM)을 이용하여 심전도(ECG) 신호로부터 조기심실수축(premature ventricular contractions, PVC)을 자동 탐지하는 방안을 제시하고 있다. NEWFM은 MIT-BIH 데이터베이스의 부정맥 심전도를 웨이블릿 변환(wavelet transform, WT)한 계수로부터 학습하여 정상 파형과 PVC 파형을 구분한다. 비중복면적 분산 측정법을 적용하여 중요도가 가장 높은 계수 2개를 추출하여 분류규칙을 최소화하였고, 이를 사용하여 99.90%의 PVC 분류성능을 나타내었다. 또한 추출된 두 계수의 R파를 기준으로 한 위치를 제시함으로써 두 위치의 정보만으로 PVC를 탐지할 수 있음을 보여주었다.

This paper presents an approach to detect premature ventricular contractions(PVC) using the neural network with weighted fuzzy membership functions(NEWFM). NEWFM classifies normal and PVC beats by the trained weighted fuzzy membership functions using wavelet transformed coefficients extracted from the MIT-BIH PVC database. The two most important coefficients are selected by the non-overlap area distribution measurement method to minimize the classification rules that show PVC classification rate of 99.90%. By Presenting locations of the extracted two coefficients based on the R wave location, it is shown that PVC can be detected using only information of the two portions.

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참고문헌

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