Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Improvement of Modeling Capability of GMDH Algorithm with Interlayer Connection

층간 연결에 의한 GMDH 알고리듬의 모델링 성능 향상

  • 홍연찬 (인천대학교 전자공학과)
  • Published : 2009.06.30
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Abstract

The GMDH(Group Method of Data Handling) algorithm can be used to model the complex nonlinear systems. The traditional GMDH algorithm produces the output of the system model in the output layer through the input layer and the intermediate layers as the prescribed process. The outputs of each layer are produced only by the outputs of the former layer. However among the inputs there may be the inputs which can influence the modeling result more than the other inputs. Therefore in this paper the method which improve the modeling capability by interlayer connection of more influential inputs is proposed. The capability improvement of the proposed algorithm compared to the traditional algorithm is verified through computer simulation.

복잡한 비선형 시스템을 모델링하기 위하여 GMDH(Group Method of Data Handling) 알고리듬을 사용할 수 있다. 기존의 GMDH 알고리듬은 정해진 절차에 의해 입력층부터 중간층들을 거쳐 출력층에서 시스템의 모델링 출력을 생성한다. 각 층의 출력은 전 층의 출력에 의해서만 생성된다. 그러나 입력들 중에서는 다른 입력들보다 모델링 결과에 더 큰 영향을 줄 수 있는 입력들이 있을 수 있다. 따라서 본 논문에서는 영향이 큰 입력들을 층간 연결하여 모델링 성능을 향상시키는 방법을 제안하였다. 제안된 알고리듬이 기존의 알고리듬보다 성능이 향상된 것을 컴퓨터 시뮬레이션을 통해 검증하였다.

Keywords

References

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