• Title, Summary, Keyword: Fuzzy-AHP

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A Study on the Decision Making Model for Construction Projects using Fuzzy-AHP and Fuzzy-Delph (Fuzzy-AHP와 Fuzzy-Delphi기법을 이용한 건설프로젝트의 의사결정 모델에 관한 연구)

  • Lee Dong-Un;Kim Yeong-Su
    • Korean Journal of Construction Engineering and Management
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    • v.4 no.1
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    • pp.81-89
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    • 2003
  • This research suggests the FD-AHP decision making model for Construction Projects which is composed of two main method to prevent a ranking invert situation ; First, to make the consensus of the experts consistent, we utilize Fuzzy-Delphi method to adjust the fuzzy rating of every expert to achive the consensus condition with the fuzzy linguistic presentation. Second, to handle vague linguistic presentation caused by expert's experiences and subjective judgement, we propose Fuzzy-AHP which is able to enhance precision of construction projects decision mating situation. Moreover, with the correlation analysis, we show that the validity of the FD-AHP model under a decision making task specially on where highly demanded expert's experiences and intuition.

The Consideration of Evaluator's Confidence and Risk Attitude in Fuzzy-AHP (퍼지 AHP 적용에 있어서 평가자 신뢰도와 위험인식 성향의 반영)

  • Nam, Ji-Hee;Lee, Young-Gun;Kim, Kwan-Hyun;Choi, Gi-Ryun;Park, Chan-Gook
    • Journal of the Society of Korea Industrial and Systems Engineering
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    • v.30 no.1
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    • pp.89-95
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    • 2007
  • In general, reliability of AHP(Analytic Hierarchy Process) depends on pairwise comparison of evaluators. In addition, human judgment on the importance of alternatives or criteria is always imprecise and vague. To cope with these shortcomings, Fuzzy AHP is suggested and used widely recently. But in Fuzzy AHP, it cannot deal with the evaluator's various attitudes towards risk and confidence owing to evaluator's different expertise and experience. This paper proposes a method for consideration of evaluator's confidence and risk attitude in Fuzzy AHP. And suggested methods are applied various scenarios to verify the meaningfulness. The result shows that the priority of alternatives can be change through the consideration of evaluator's confidence and risk attitude.

Evaluating the Importance of Certification Criteria for Call Center Services (콜센터 서비스인증 심사기준의 중요도 평가)

  • Lee, Mi-na;So, Soon-Hu
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.139-141
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    • 2016
  • With the introduction of national standards (KS) for call centers, customers are expected to have access to better-quality services in the future. The purpose of this study is to evaluate the relative importance of certification criteria for call center services using the Fuzzy AHP(Analytic Hierarchy Process) approach. Fuzzy AHP is the combination of the fuzzy set theory and AHP to deal with the uncertainty or ambiguousness of the decision-making process. The evaluation method proposed in this study can be applied to the KS services certification promoted by government.

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Comparison of Fuzzy AHP Decision Making Approaches for Selection among Information Security Systems (정보 보안 방안 선택을 위한 퍼지 AHP 방법의 비교 검토)

  • Lee, Kyung-Keun;Ryu, Si-Wook
    • The Journal of Information Systems
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    • v.19 no.3
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    • pp.59-73
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    • 2010
  • Along with advance of information technology, value of information is growing much more than ever. And nearly all organizations pay great attentions to information security to protect their own important informations against every kind of hazardous accidents. Therefore, organizations want to select best information security system among many possible alternatives. For this purpose, several fuzzy AHP decision making approaches can be utilized. In this study, we consider a number of qualitative and quantitative factors to evaluate security systems and then apply three fuzzy AHP approaches for simple case to compare the results from three approaches. We find that final decision depends on both fuzzy AHP methods and degree of fuzziness.

A Study on the Selection of Waterproofing Construction Firms using Fuzzy-AHP Model (퍼지 계층분석 모형을 이용한 최적 방수 시공업체 선정에 관한 연구)

  • Shin, Jin-Hak;Lee, Sun-Gyu;Song, Je-Young;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.11-14
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    • 2012
  • The category for waterproofing is one of construction process most affected by falling-off in price competitiveness, construction quality, and material performance. Therefore, in order to select of waterproofing construction firms, it is necessary to consider Incorporating both price competitiveness and construction quality. In this article, I would like to analyze 10 Factors for Selecting using fuzzy-AHP model, including the survey of the waterproofing experts. This fuzzy-AHP model can be shown to calculate the fuzzy trigonometrical function to reflect weights for preference of 10 factors for the waterproofing construction firms. It was found from the result that waterproofing construction firms was searched order of priority for select by fuzzy-AHP model.

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Fuzzy AHP and FCM-driven Hybrid Group Decision Support Mechanism (퍼지 AHP와 퍼지인식도 기반의 하이브리드 그룹 의사결정지원 메커니즘)

  • Kim, Jin-Sung;Lee, Kun-Chang
    • Proceedings of the Korea Society for Industrial Systems Conference
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    • pp.239-250
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    • 2003
  • In this research, we propose a hybrid group decision support mechanism (H-GDSM) based on Fuzzy AHP (Analytic Hierarchy Process) and FCM (Fuzzy Cognitive Map). The AHP elicits a corresponding priority vector interpreting the preferred information among the decision makers. Corresponding vector was composed of the pairwise comparison values of a set of objects. Since pairwise comparison values are the judgments obtained from an appropriate semantic scale. However, AHP couldn't represent the causal relationship among information, which were used by decision makers. In contrast to AHP, FCM could represent the causal relationship among variables or information. Therefore, FCMs were successfully developed and used in several ill-structured domains, such as strategic decision-making, policy making, and simulations. Nonetheless, many researchers used subjective and voluntary inputs to simulate the FCM. As a result of subjective inputs, it couldn't avoid the rebukes of businessman. To overcome these limitations, we incorporated the Fuzzy membership functions, AHP and FCM into a H-GDSM. In contrast to current AHP methods and FCMs, the H-GDSM method developed herein could concurrently tackle the pairwise comparison involving causal relationships under a group decision-making environment. The strengths and contributions of our mechanism were 1) handling of qualitative knowledge and causal relationships, 2) extraction of objective input value to simulate the FCM, 3) multi-phase group decision support based on H-GDSM. To validate our proposed mechanism we developed a simple prototype system to support negotiation-based decisions in electronic commerce (EC).

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Relative priority evaluation of security attributes in cloud computing using fuzzy AHP (Fuzzy AHP를 적용한 클라우드 컴퓨팅 환경에서 보안 속성의 상대적 중요도 평가)

  • Choi, Cheol-Rim;Song, Young-Jae
    • Journal of Advanced Navigation Technology
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    • v.15 no.6
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    • pp.1098-1103
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    • 2011
  • In spite of many advantages of cloud computing, security concerns are a barrier in users' adopting the cloud service. In this paper, we evaluate relative priorities between security attributes of ISO 7498-2 standards affecting overall security quality in cloud computing. For an objective evaluation, the fuzzy AHP(Analytic hierarchical process) is applied. The evaluation results represented the relative priority with concrete number can be an effective management method to choose and develop the cloud computing service.

An efficient Decision-Making using the extended Fuzzy AHP Method(EFAM) (확장된 Fuzzy AHP를 이용한 효율적인 의사결정)

  • Ryu, Kyung-Hyun;Pi, Su-Young
    • Journal of the Korean Institute of Intelligent Systems
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    • v.19 no.6
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    • pp.828-833
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    • 2009
  • WWW which is an applicable massive set of document on the Web is a thesaurus of various information for users. However, Search engines spend a lot of time to retrieve necessary information and to filter out unnecessary information for user. In this paper, we propose the EFAM(the Extended Fuzzy AHP Method) model to manage the Web resource efficiently, and to make a decision in the problem of specific domain definitely. The EFAM model is concerned with the emotion analysis based on the domain corpus information, and it composed with systematic common concept grids by the knowledge of multiple experts. Therefore, The proposed the EFAM model can extract the documents by considering on the emotion criteria in the semantic context that is extracted concept from the corpus of specific domain and confirms that our model provides more efficient decision-making through an experiment than the conventional methods such as AHP and Fuzzy AHP which describe as a hierarchical structure elements about decision-making based on the alternatives, evaluation criteria, subjective attribute weight and fuzzy relation between concept and object.

Fuzzy Membership Functions and AHP-Based Negotiation Support in Electronic Commerce (퍼지 멤버십 함수와 AHP 추론기법을 이용한 전자상거래 협상지원)

  • Kim, Jin-Sung
    • Journal of the Korean Institute of Intelligent Systems
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    • v.12 no.4
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    • pp.347-352
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    • 2002
  • This paper propose the Fuzzy AHP(Analytic Hierarchical Process)-based negotiation support (FAHP-NEGO) mechanism to support the dynamic negotiation process in Electronic Commerce(EC). Negotiation is a form of decision-making with two or more actively involved agents who can not make decisions independently, and therefore must make concessions to achieve a compromise. Having concerned that point, the theoretical framework of FAHP-NEGO mechanism is presented by means of fuzzy membership functions and AHP. This mechanism encompasses both qualitative and quantitative conditions, and the use of multiple negotiation procedures for solving the electronic negotiation problem, adjusting the fuzzy membership function, and restructuring the problem representation. A hypothetical example of a healthcare products purchase is given to illustrate the quality of the proposed mechanism. The results showed that the Fuzzy AHP-based negotiation support mechanism could reflect both qualitative and quantitative conditions in EC. The implications of the study for future directions of research on electronic negotiation support modeling and systems are presented.