Journal of the Korean Institute of Intelligent Systems (한국지능시스템학회논문지)

Korean Institute of Intelligent Systems (한국지능시스템학회)
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Adaptive Fuzzy Drop Manager for Service of Reliable Distribution Application Domain Objects

신뢰성 있는 분산 도메인 객체 서비스를 위한 적응형 퍼지 드럽 관리기

  • 정택원 (전북대학교 응용시스템공학부 전자통신공학) ;
  • 이종득 (전북대학교 응용시스템공학부 전자통신공학)
  • Received : 2009.01.09
  • Accepted : 2009.07.22
  • Published : 2009.08.25
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Abstract

A lot of methods are proposed to provide services for object informations in distributed domain to satisfy the recent increase of user-centered services. This paper proposed a method called fuzzy drop manager for the service of reliable distribution application domain objects. The proposed system accesses the domain using replica parameter ci,j and access matrix Z, and evaluates the reference relatedness inside the domain using the relatedness, given by the mapping of intra-domain fuzzy relevance, between fuzzy sets. Objects in the domain generated an $\alpha$-level set according to the reference relatedness obtained by applying $\alpha$-level to extend queries. Simulation results showed that the proposed method has better performance than the other methods.

최근에 사용자 위주의 서비스 요구가 증가됨에 따라 분산 도메인의 객체 정보를 서비스하기 위한 여러 기법들이 제안되고 있다. 본 논문에서는 이와 같은 요구에 따라 신뢰성 있는 분산 도메인 객체를 서비스하기 위한 퍼지 드롭 관리기를 제안하였다. 제안된 시스템은 사본 변수 $c_{i,j}$와 접근행렬 Z를 이용하여 도메인에 접근할 수 있도록 하였으며, 도메인 내에서는 인트라 도메인 퍼지 적합도를 사상시켜 퍼지집합 사이의 관계성을 적용하여 객체들의 참조 관련성을 평가하였다. 그리고 질의를 확장하기 위해 도메인의 객체들에 대해서는 알파 레벨을 적용하여 참조 관련성에 따라 알파 레벨 집합을 생성하였다. 그 결과 우리의 기법이 다른 기법들에 비해서 성능평가가 향상됨을 알 수 있었다.

Keywords

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