• 제목/요약/키워드: Fuzzy measures

검색결과 219건 처리시간 0.021초

OECD 국가의 가족정책과 아동 삶의 질의 관계: 퍼지셋 질적비교분석 (The Relationship between Family Policy and Children's Quality of Life among OECD Countries: Fuzzy-Set Qualitative Comparative Analysis)

  • 박정민;진미정
    • Human Ecology Research
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    • 제60권4호
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    • pp.595-607
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    • 2022
  • This study aims to clarify the relationship between family policy and children's quality of life through an international comparison and to determine which family policy factors contribute to children's quality of life. The research question is "How can family policies be combined to improve children's quality of life in terms of health and economy?" It includes nine categories of family policies related to money, service, and leave. Measures of children's quality of life include low birth weight, infant mortality, and child poverty. Using the OECD Family Database, and the OECD Child Well-being Data, fuzzy-set Qualitative Comparison Analysis (fsQCA) was used among 20 OECD countries. Combinations of family policies significant to the children's quality of life were derived from the results. This study contributes to the literature by revealing the effectiveness of states' investment in family policy. In addition, the study indicates that since family policies interact with each other, those policies combine to improve children's quality of life.

Estimation of shear resistance offered by EB-FRP U-jackets: An approach based on fuzzy-inference system

  • S Kar;E.V. Prasad;Nikhil P. Zade;Parveen Sihag;K.C. Biswal
    • Computers and Concrete
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    • 제32권1호
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    • pp.27-44
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    • 2023
  • The current study targets to apply the adaptive neuro-fuzzy inference system (ANFIS) for the estimation of the shear resistance offered by the externally bonded fiber-reinforced polymer (EB-FRP) U-jackets. A total of 202 groups of data cumulated from previous investigations, were employed for the development and evaluation of the ANFIS model. A relative appraisal between the ANFIS predictions and the results of experiments has shown that the assessments by current ANFIS model are in good concurrence with the latter. In addition, assessment of the accuracy of the ANFIS model was done by relating the ANFIS predictions with the forecasts of eight extensively used design guidelines. Based on the examination of various performance measures, it has been derived that the adequacy of the ANFIS model is better than the available guidelines. A parametric investigation has additionally been done to reconnoiter the influence of individual parameters as well as their combined effects on the shear contribution of EB-FRP. Based on the observations made from the parametric study, it has been witnessed that the ANFIS model has incorporated the effect of different parameters more competently than the considered design guidelines.

가변길이에 따른 Fuzzy Entropy의 외곽선 검출에 관한 연구 (A Study on Edge Detection of Fuzzy Entropy using Variable Length)

  • 박인규;박현철
    • 디지털콘텐츠학회 논문지
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    • 제9권2호
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    • pp.357-362
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    • 2008
  • 본 논문에서는 그레이영상의 경계검출을 위해 가변길이에 의한 샤논함수를 이용하는 새로운 접근방법을 제시하였다. 제안된 방법은 영상에 존재하는 경계를 검출하기 위하여 변형된 샤논함수를 이용하여 경계위치와 관계하는 가능한 공간정보 측정하였다. 또한 퍼지 엔트로피을 이용하여 경계의 가능성을 측정하는 알고리즘을 제안하였다. 본 논문에서 제시한 공간정보를 이용한 방법이 그레이영상의 경우에 영상의 세세한 정보의 검출과 경계 굵기에 대한 민감도의 관점에서 기존의 방법들보다 성능이 우수하다는 것을 여러 실험 결과를 통하여 알 수 있었다.

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집합치 쇼케이적분과 수렴정리에 관한 연구(II) (On set-valued Choquet integrals and convergence theorems(II))

  • 장이채;김태균;전종득
    • 한국지능시스템학회논문지
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    • 제12권4호
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    • pp.323-326
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    • 2002
  • 이 논문에서 구간 수의 값을 갖는 함수들의 쇼케이적분을 생각하고자 한다. 이러한 구간 수의 값을 갖는 함수들의 성질들을 조사하여 오토연속인 퍼지측도에 관련된 쇼케이적분에 대한 수렴성 정리를 증명한다.

A Study on Performance Improvement of Fuzzy Min-Max Neural Network Using Gating Network

  • Kwak, Byoung-Dong;Park, Kwang-Hyun;Z. Zenn Bien
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 2003년도 ISIS 2003
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    • pp.492-495
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    • 2003
  • Fuzzy Min-Max Neural Network(FMMNN) is a powerful classifier, It has, however, some problems. Learning result depends on the presentation order of input data and the training parameter that limits the size of hyperbox. The latter problem affects the result seriously. In this paper, the new approach to alleviate that without loss of on-line learning ability is proposed. The committee machine is used to achieve the multi-resolution FMMNN. Each expert is a FMMNN with fixed training parameter. The advantages of small and large training parameters are used at the same time. The parameters are selected by performance and independence measures. The Decision of each expert is guided by the gating network. Therefore the regional and parametric divide and conquer scheme are used. Simulation shows that the proposed method has better classification performance.

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Application of Similarity Measure for Fuzzy C-Means Clustering to Power System Management

  • Park, Dong-Hyuk;Ryu, Soo-Rok;Park, Hyun-Jeong;Lee, Sang-H.
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • 제8권1호
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    • pp.18-23
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    • 2008
  • A FCM with locational price and regional information between locations are proposed in this paper. Any point in a networked system has its own values indicating the physical characteristics of that networked system and regional information at the same time. The similarity measure used for FCM in this paper is defined through the system-wide characteristic values at each point. To avoid the grouping of geometrically distant locations with similar measures, the locational information are properly considered and incorporated in the proposed similarity measure. We have verified that the proposed measure has produced proper classification of a networked system, followed by an example of a networked electricity system.

퍼지적분을 이용한 내용기반 검색 사용자 의견 반영시스템 (Relevance Feedback for Content Based Retrieval Using Fuzzy Integral)

  • Young Sik Choi
    • 인터넷정보학회논문지
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    • 제1권2호
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    • pp.89-96
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    • 2000
  • 영상의 유사성에 대한 사용자의 주관적인지를 학습하는 방법으로 relevance feedback 기술이 사용되며, 최근 들어 이에 대한 관심이 높아지고 있다. 대부분의 relevance feedback기술은 영상 유사성을 측정하는데 사용되는 특징이 서로 독립적이라는 가정하고 있으나, 이러한 가정은 유사성 판단을 모델링 하는데 있어서 상당한 제약을 두는 것이다. 이 논문에서는. 퍼지 측정과 Choquet 적분을 이용하여, 유사성 판단에 대한 보다 나은 모델링 방법을 제안하고, 이를 이용한 relevance feedback 알고리즘을 제안한다. 실험결과를 통하여, 기존의 가중치 평균 방식에 의한 relevance feedback보다 제안된 방식이 우수함을 보인다.

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An Integrated Mathematical Model for Supplier Selection

  • Asghari, Mohammad
    • Industrial Engineering and Management Systems
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    • 제13권1호
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    • pp.29-42
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    • 2014
  • Extensive research has been conducted on supplier evaluation and selection as a strategic and crucial component of supply chain management in recent years. However, few articles in the previous literature have been dedicated to the use of fuzzy inference systems as an aid in decision-making. Therefore, this essay attempts to demonstrate the application of this method in evaluating suppliers, based on a comprehensive framework of qualitative and quantitative factors besides the effect of gradual coverage distance. The purpose of this study is to investigate the applicability of the numerous measures and metrics in a multi-objective optimization problem of the supply chain network design with the aim of managing the allocation of orders by coordinating the production lines to satisfy customers' demand. This work presents a dynamic non-linear programming model that examines the important aspects of the strategic planning of the manufacturing in supply chain. The effectiveness of the configured network is illustrated using a sample, following which an exact method is used to solve this multi-objective problem and confirm the validity of the model, and finally the results will be discussed and analyzed.

Implementation and Performance Evaluation of a Firm's Green Supply Chain Management under Uncertainty

  • Lin, Yuanhsu;Tseng, Ming-Lang;Chiu, Anthony S.F.;Wang, Ray
    • Industrial Engineering and Management Systems
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    • 제13권1호
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    • pp.15-28
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    • 2014
  • Evaluation of the implementation and performance of a firm's green supply chain management (GSCM) is an ongoing process. Balanced scorecard is a multi-criteria evaluation concept that highlights implementation and performance measures. The literature on the framework is abundant literature but scarce on how to build a hierarchical framework under uncertainty with dependence relations. Hence, this study proposes a hybrid approach, which includes applied interpretive structural modeling to build a hierarchical structure and uses the analytic network process to analyze the dependence relations. Additionally, this study applies the fuzzy set theory to determine linguistic preferences. Twenty dependence criteria are evaluated for a GSCM implemented firm in Taiwan. The result shows that the financial aspect and life cycle assessment are the most important performance and weighted criteria.

퍼지적분을 이용한 메시지 프로토콜 검증 (A New Approach to the Verification of a Message Protocol : Fuzzy Integral)

  • 신승중;박인규
    • 한국정보처리학회논문지
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    • 제7권6호
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    • pp.1903-1910
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    • 2000
  • 본 논문은 TCP/IP상에서 전자서병고 공개키 분배 및 인증 등의 기능이 포함된 메시지전송 프로토콜로 구현된 프로그램의 검증문제를 퍼지적분을 이용하여 해결하였다. 기능별로 보안기술, 보안정책, 전자문서처리, 전자문서전송, 임.복호화키로 나누어 분류하여 구현된 내용을 기능별점수와 전문가의 요구사항을 구현된 크로토콜에서 산출 값과 비교하여메시지 보안프로토콜을 기능별로 점수화하여 검증하였다.

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