• 해양환경안전학회지
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• 제2권1호
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• pp.97-106
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• 1996

One of the main problems in evaluating complex objects, such as an ill-defined system, is how to treat ambiguous aspect of the evaluation. Due to the Complexity and ambiguity of the objects, many types of evaluation attributes should be identified based on the rational dsision. One of these attributes is an analytical hierarchy process (AHP). the weight of evaluation attribtes in AHP however comes from the probability measure based on the additivity. Therefore, it is notapplicable to the objects which have the property of non-additivity. In the previous studies by other researchers they intriduced the Hierarchical Fuzzy Integral method or mergd AHP and fuzzy measure for the analysis of the overlaps among the evaluation objects. But, they need more anlyses in terms of transformation of the probability measure into fuzzy measure which fits for the additivity and overlapping coefficient which affects to the fuzzy measure. Considering these matters, this paper deals that, ⅰ) clarifying the relation between the fuzzy and probability measure adopted in AHP, ii) calculating directly the family of fuzzy measure from the overlapping coefficient and probability measure. A simple algorithm for the calculation of fuzzy measures and set family of those from the above results is also proposed. Finally, the effectiveness of the algorithm developed by applying this to the problems for estimation of safety in ship berthing and for evaluation of ports in competition is verified. This implied that the new algoritnm gives better description of the system evaluation.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 2004년도 춘계공동학술대회 논문집
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• pp.590-594
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• 2004

본 연구는 통합의사결정지원시스템을 위한 3-단계 모델과 이를 사용자가 쉽게 활용할 수 있도록 웹 기반의 전산 프로그램을 개발하고 응용 사례를 들어 보았다. 의사결정문제의 대안 선정, 대안을 평가시스템 및 여러 평가 위원들의 평가 결과를 종합하는 문제들을 포함하였으며 AHP(Analytic Hierarchy Process) 방법과 Fuzzy AHP방법을 활용하여 평가구조 평가인자 구성 및 각 가중치 등 개관적인 방법을 사용하였다. 이러한 3단계의 통합의사 결정방법은 1) Brain storming 단계서 대안 및 평가구조를 도출하고, 2) AHP 및 Fuzzy-AHP 방법으로 각 대안을 평가하여 의사 결정의 기반을 삼으며, 3) 여러 평가자들의 평가 결과를 합리적으로 통합하여 최선의 대안을 도출하는 방법이다.

• 디지털융복합연구
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• 제18권1호
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• pp.301-307
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• 2020

최근 추천 시스템은 5G 시대의 시작과 동시에 여러 분야에서 도입하고 있으며, 주로 도서나 영화, 음악 분야의 서비스에서 크게 두각을 나타내고 있다. 그러나 이러한 추천 시스템에서 사용자마다 선호하는 정도가 주관적이고, 불확실하여 정확한 추천 서비스를 제공하기가 어렵다. 추천 시스템의 성능을 향상시키기 위해서는 많은 양의 학습 데이터가 필요하며, 추론 기술이 보다 정확해야 한다. 이러한 문제점을 해결하기 위하여 본 연구에서는 Fuzzy-AHP와 Word2Vec 학습 기법을 이용한 영화 추천 시스템을 제안하였다. 본 시스템에서는 사용자의 선호도를 객관적으로 예측하기 위해 Fuzzy-AHP를 사용하였으며, 스크레이핑한 데이터를 분류하기 위해 Word2Vec 학습 기법을 사용하였다. 본 시스템의 성능을 평가하기 위해 그리드 서치를 이용하여 Word2Vec 학습 결과의 정확도를 측정하였고, 그 후 본 시스템이 예측한 평점과 관객들이 평가한 영화의 평점 간 차이를 비교하였다. 그 결과 최적의 교차 검증 정확도가 91.4%로 우수한 성능을 나타내었으며, 예측한 평점과 관객들이 평가한 영화의 평점 간 차이를 Fuzzy-AHP 시스템과 비교한 결과 10% 정도 우수함을 확인할 수 있었다.

• 지식경영연구
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• 제19권2호
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• pp.109-132
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• 2018

Recently, new financial services related to FinTech has gained attention more and more. Online P2P financial services transactions such as FinTech require careful examination of the constituents of information systems as an investment is made based on the information presented on the online platform without direct face-to-face contact. The purpose of this study is to find out the success factors of online P2P Lending service among FinTech. To serve the purpose, we build IS (information system) success model, and then use Kano model and fuzzy analytic hierarchy process (Fuzzy-AHP) to find out factors for the success of online P2P Lending service. In particular, this study uses Kano model to classify information system satisfaction factors and to calculate the satisfaction coefficient. The Kano model, however, has a drawback of evaluating single criterion. Therefore, we use multi-criteria decision-making technique such as Fuzzy-AHP to derive the relative importance of the factors. The analysis results show different results depending on the analysis technique. In the Kano model, most of the information system factors are a one-dimensional quality attribute. The satisfaction coefficient is highest for personalized service, followed by the responsiveness of service, ease of using a system, understanding of information, usefulness of information' reliability. The service reliability is the highest in dissatisfaction coefficient, followed by system security, service responsiveness, system stability, and personalized service. The results of the Fuzzy-AHP analysis shows that the usefulness of information quality, the personalization of service quality, and the security of system quality are the significant factors and the stability of system quality was a secondary factor.

• 디지털융복합연구
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• 제15권4호
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• pp.461-468
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• 2017

현재 제공되고 있는 모바일 게임 추천 시스템들은 실제 사용자가 선호하는 게임에 대한 패턴을 추천하는지, 아니면 단순히 관심 정도의 패턴을 추천하는지 알 수 없어 사용자의 주관적인 선호도를 직접적으로 알 수 없다는 문제점이 있다. 이를 해결하기 위하여 사용자들의 주관적인 선호도를 직접적으로 반영한 계층적 분석 방법(Analytic Hierarchy Process, AHP) 기반 모바일 게임 추천 시스템을 개발하였지만, 사용자들이 선호하는 항목에 대한 척도가 같다고 할지라도 선호하는 정도까지 동일하다고 볼 수 없다는 문제가 발생하였다. 본 연구에서는 이와 같은 문제점을 해결하기 위해 Fuzzy-AHP 기법의 삼각 퍼지 수(Triangular Fuzzy Numbers)와 베이지안 네트워크에서 평가 항목의 독립성을 적용한 모바일 게임 추천 시스템을 구현하였다. 그 결과 본 연구에서 제안한 추천 시스템이 기존의 시스템과 비교하여 볼 때 추천 결과의 정확도 및 사용자의 만족도가 가장 높은 것을 확인할 수 있었다.

• 대한인간공학회지
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• 제27권2호
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• pp.15-24
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• 2008

As users increasingly recognize the importance of safety and the Product Liability comes into effect, a company should take responsibility of protecting the users who use its product. In order to produce a safe product and satisfy the needs of users, it is critical for develope opriately and understand the characteristics of the product accurately. Furthermore, a safe product can be realized by considering a safety level of the product in a whole product development process. However, in general, product development projects hardly evaluate the safety of a product in the product planning step. In addition, most of safety evaluation methods which are applied in the product planning step have a tendency to be qualitative because a detailed product design step. Therefore, this research aims at enhancing the performance of the safety evaluation process by applying quantitative methods such as 'AHP' and 'Fuzzy'. AHP can help analysts derive the weight of safety factors. Fuzzy is applied to evaluate the degree of safety of product elements in this paper. The proposed method will be able to improve the safety level of a product by using the quantitative methods in the product planning step.

• 산업공학
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• 제22권1호
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• pp.26-37
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• 2009

BPM(Business Process Management) secures the agility of an enterprise through automation, integration, and optimization of business process. For the successful BPM introduction, the evaluation and selection of suitable processes for BPM are very important. But as to process evaluation and selection standards, in fact, various selection elements exist and they have to be considered. Therefore, it is very difficult to evaluate systematically and reasonably business processes for enterprises or concerned persons that plan to introduce BPM. This paper describes a Web-based business process evaluation model for BPM using BSC(Balanced Scorecard) and fuzzy AHP(Analytic Hierarchy Process). A Web-based business process evaluation system was implemented based on this and it provides many useful business process evaluation results to enterprises or concerned persons that have insufficient experience and knowledge about BPM, and initially plan to implement BPMS(Business Process Management System). Thus, this paper demonstrates the applicability of fuzzy AHP concept in business process evaluation and selection for BPM, and provides a systemic guidance in the decision-making process.

• 대한안전경영과학회지
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• 제14권3호
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• pp.119-126
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• 2012

Recently, the breakdown of online banking servers and the leakage of customer information give rise to much concern about the security of information systems in financial and banking companies in Korea. The enforcement of security for information system becomes much more important issue than earlier. However, the security reinforcement of information system is restricted by a budget. In addition, the activities' cost to secure information system from threatening are under uncertain circumstances and should be established by a human decision maker who is basically uncertain and vague. Thus, making the budget for information system is exposed to any extent of the risk for these reasons. First, we introduce brief fuzzy set theory and fuzzy AHP (Analytic Hierarchy Process) methodology. Then, the cost elements that comprise yearly budget are presented and the priorities among the cost elements are calculated by fuzzy AHP. The cost elements that are exposed to risk are evaluated from the both perspectives of the risk impact and risk occurrence possibility which are expressed as linguistic terms. To get information on the risk profiles-pessimistic, most likely, and optimistic-for each cost element, the evaluation is accomplished and the result is presented. At last, the budget ranges-minimum, mode, maximum-for each cost element are estimated with the consideration of the risk profiles.

• 한국항해항만학회지
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• 제44권4호
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• pp.319-325
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• 2020

최근 정부는 수상운송기업의 경쟁력을 강화하기 위한 지원정책을 추진하고 있다. 이러한 정책을 효과적으로 수행하기 위해서는 수상운송기업의 경영성과를 평가하고 정책의 모니터링이 필요하다. 이 연구는 통합 FUZZY AHP-PROMETHEE법을 이용하여 우리나라 수상운송기업의 경영성과를 평가하여 우선순위를 선정하기 위한 것이다. 이를 위해 먼저 수상운송기업을 7개의 대상그룹으로 구분하고, 경영성과 평가를 위한 평가항목을 추출한다. 두번째는 전문가 설문조사를 통해 Fuzzy AHP법을 이용하여 평가항목의 중요도를 산정한다. 마지막으로 평가항목의 중요도와 Fuzzy PROMETHEE II법을 결합하여 수상운송기업군의 전체 우선순위를 결정하고 Fuzzy PROMETHEE I법을 이용하여 기업군간의 우선순위를 분석한다. 따라서 제안된 모델에서는 성장성, 생산성, 수익성, 기술성 등 4개의 평가 항목이 추출되었다. 그 결과 기타해상운송업의 경영성과가 가장 높게 나타났고, 내륙수상여객및화물운송업의 경영성과가 가장 낮게 나타났다. 따라서 기타해상운송업은 성과를 지속하기 위해 생산성을 증대해야 하고, 내륙수상여객및화물운송업은 성과향상을 위해 모든 항목을 증대해야 할 것이다.

• 신재생에너지
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• 제4권1호
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• pp.19-24
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• 2008

Energy environment has been changing rapidly such as high oil prices and the effectuation of UNFCCC. Oil prices have continued to rise and Dubai crude prices recorded about 90 dollars per barrel in 2007. In addition, the effectuation of UNFCCC will affect Korean economy and national energy security. Korea is the 9th $CO_2$ emissions country and takes the 1st place related to the increase rate of $CO_2$ emissions globally. Energy technology development is a key breakthrough and one of the optimal alternatives to cope with national energy security. In this study, we prioritize energy technologies in the sectors of high oil prices and UNFCCC related to ETRM for well focus R&D and efficiency of finite resources allocations. We applied to the extended method of AHP, fuzzy AHP reflecting the fuzziness of human thoughts and perception, for prioritizing the relative importance among energy technologies in ETRM for the first time as we make an energy policy in Korea.