• Title/Summary/Keyword: Fuzzy-AHP Analysis

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Feasibility Analysis of Korea TURA Reflecting Fuzzy Weights (Fuzzy 가중치를 반영한 배출 저감 규제의 타당성 분석)

  • Yoon, Daniel Jongsoo;Byun, Hun-Soo
    • Korean Chemical Engineering Research
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    • v.59 no.2
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    • pp.186-190
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    • 2021
  • The toxics regulatory body provides a benefit/cost ratio as a justification criterion while implementing regulations that induce the industry to reduce emissions voluntarily. Furthermore, since, the body wants to reflect not only the efficiency standard but also the policy standard in the evaluation of feasibility, it calculates the ratio by adjusting the importance weights. The problem is that respondents answer ambiguously. It should be removed for the reasonable evaluation. This study introduced a fuzzy-AHP methodology for this, and applied it to the voluntary emission reduction plan program in Korea.

Analysis of Logistics Network between Gwangyang Port and China Ports using Fuzzy-AHP (Fuzzy-AHP를 이용한 광양항과 중국항만간의 물류네트워크 분석)

  • Yeun, Dong-Ha;Choi, Yong-Seok
    • Journal of Korea Port Economic Association
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    • v.27 no.4
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    • pp.91-107
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    • 2011
  • This paper is concerned about applying the Fuzzy-AHP(Analytic Hierarchy Process) for an analysis of logistics network between Gwangyang port and China ports. In this study, measurement areas were selected for hardware aspect, software aspect, and marketing aspect. As for the analysis regarding measurement area, the results were shown as follows: a marketing aspect(38.7%) as the first rank: a hardware aspect(35.3%) as the second rank: a software aspect(26.0%) as the third rank. The analysis result of hardware aspect reveals that the most important element is regular route addition between Gwangyang port and China ports(45.2%). The most important element of software and marketing aspect were a government support(46.4%) and a high value transshipment cargo inducement(36.4%). As for the whole priority which conversion weight was applied, the results were shown as follows: a regular route addition between Gwangyang port and China ports(15.9%) as the first rank: a high value transshipment cargo inducement(14.1%) as the second rank: a attracting import cargo from China(12.9%) as the third rank. The result of this study suggests some guidelines for deciding priority of logistics network between Gwangyang port and China ports.

Segmenting Inpatients by Mixture Model and Analytical Hierarchical Process(AHP) Approach In Medical Service (의료서비스에서 혼합모형(Mixture model) 및 분석적 계층과정(AHP)를 이용한 입원환자의 시장세분화에 관한 연구)

  • 백수경;곽영식
    • Health Policy and Management
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    • v.12 no.2
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    • pp.1-22
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    • 2002
  • Since the early 1980s scholars have applied latent structure and other type of finite mixture models from various academic fields. Although the merits of finite mixture model are well documented, the attempt to apply the mixture model to medical service has been relatively rare. The researchers aim to try to fill this gap by introducing finite mixture model and segmenting inpatients DB from one general hospital. In section 2 finite mixture models are compared with clustering, chi-square analysis, and discriminant analysis based on Wedel and Kamakura(2000)'s segmentation methodology schemata. The mixture model shows the optimal segments number and fuzzy classification for each observation by EM(expectation-maximization algorism). The finite mixture model is to unfix the sample, to Identify the groups, and to estimate the parameters of the density function underlying the observed data within each group. In section 3 and 4 we illustrate results of segmenting 4510 patients data including menial and ratio scales. And then, we show AHP can be identify the attractiveness of each segment, in which the decision maker can select the best target segment.

A Method of consciousness Structure Analysis Using Analytic Hierarchy Process (AHP를 이용한 의식구조분석법)

  • 황승국
    • Journal of the Korean Institute of Intelligent Systems
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    • v.6 no.4
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    • pp.61-70
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    • 1996
  • This paper deals with consciousn~s structure by means of human subjective judgement. Fuzzy structural modeling which is a modeling method for consciousness structure have the large number of pairwise comparigon by human subjective judgement, is difficplt to check the consistency index which denotes the precision for human judgement. To improve these points, we set the structure of consciousness by fuzzy structural modeling method using the concept of pairwise compariqon matrix in AHP. The efficiency of this method is showed by means of the consciousness structure graph to the qyality system construction.

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A Study on the Safety Factor Analysis of Bulk Cargo Handling Using Fuzzy-AHP : Focused on steel cargo (Fuzzy-AHP를 활용한 벌크화물 하역 안전요인 분석에 관한 연구 : 철재화물을 중심으로)

  • Kim, Byung-Hwa;Park, Sung-hoon;Gong, Jeong-min;Yeo, Gi-Tae
    • Journal of Digital Convergence
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    • v.16 no.2
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    • pp.179-188
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    • 2018
  • In this paper, we analyze accident factors that occur in the unloading of steel cargoes and try to derive priority of importance among factors. The Fuzzy-AHP, which enables hierarchical analysis through pairwise comparison of factors, is used to derive priorities of safety factors to consider when unloading steel cargo. In the top factor analysis results, weights were ranked in order of human factors, safety education, equipment and facilities, and business environment. The purpose of this paper is to contribute to the improvement of the safety consciousness of the field workers and enterprises and to reduce the incidence of accidents in the unloading and unloading operations by deriving the relative importance between the factors. In the future, it is necessary to study the cargoes of other disasters such as container cargo as well as steel cargo.

A Study on the Cost Risk Analysis Method for Construction Projects (건설 프로젝트의 코스트 리스크 분석방법론에 관한 연구)

  • Lee Dong-Un;Kim Yeong-Su
    • Korean Journal of Construction Engineering and Management
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    • v.4 no.4 s.16
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    • pp.201-211
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    • 2003
  • Considering about construction projects characteristics, there Is an existing uncertainty which causes inaccuracy or invalidity under decision making situation. Therefore, cost risk analysis of numerous construction projects are Inclined to depend on expert's experiences and subjective judgements. In Korean domestic construction works, however, there is no reasonable method or process for applying subjective elements. Only probabilistic analysis using objective calculation are being used now. This research suggests a cost risk analysis method to analyze quantitatively Cost Impact by risk, and it appraises expert's subjective elements for the purpose of enhancing validity of cost estimation. Moreover, a new cost risk analysis method is introduced for providing convenient user interface in practical business.

Developing Technology Innovation Capability Evaluation Model for Small and Medium Enterprises (중소기업 육성을 위한 기술혁신역량 평가모형개발)

  • Cho, Joonggil;Lee, Sang-Sun;Byun, Min-Seok;Lee, Jonghwan;Kang, Kyungsu;Lee, Seongbin
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.38 no.1
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    • pp.162-169
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    • 2015
  • In this research, technology innovation capability evaluation model for small and medium enterprises was developed. To develop technology innovation capability evaluation model, two analytic technic was used. First one is AHP (Analytic Hierarchy Process) to give weight to each main index. Second one is fuzzy set theory to represent ambiguous index to numerical value. Finally, technology innovation capability evaluation model was achieved in combination with the same weight to AHP analysis and fuzzy set theory. With these results, small and medium enterprises can know important point in terms of strengthening the innovation capability evaluation.

A Study on the Reduction of Greenhouse Gas in Container Terminal (컨테이너터미널의 온실가스 저감방안에 관한 연구)

  • Kim, Seon-Gu;Choi, Yong-Seok
    • Journal of Korea Port Economic Association
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    • v.28 no.1
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    • pp.105-122
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    • 2012
  • This paper proposes a fuzzy-based AHP model by which the greenhouse gas reduction for container terminal problem was systematically structured and then evaluated. The model was established by exploiting a fuzzy theory and AHP for capturing the inexactness and vagueness of information. In this study, measurement areas were selected for equipment aspect, operating aspect, and energy aspect. The greenhouse gas reduction is the number one priority in the equipment aspect, operating aspect, energy aspect in order. The analysis result of equipment aspect reveals that the most important element is electrical T/C. The most important element of operating and energy aspect were a container rehandling and a LED lighting. As for the whole priority which conversion weight was applied, the results were shown as follows: an electrical T/C(16.2%) as the first rank: a hybrid Y/T(14.4%) as the second rank: a AMP(10.6%) as the third rank. The result of this study suggests some guidelines for deciding priority of greenhouse gas reduction for container terminal.

Predicting Project Performance by Analyzing Key Success Factors on Project Fiancing(PF) Development (건설 프로젝트 파이낸스(PF) 사업의 성공영향요인(KSF) 분석을 통한 사업성과 예측 모델)

  • Lee, Dong-Gun;Cha, Hee-Sung
    • Korean Journal of Construction Engineering and Management
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    • v.15 no.5
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    • pp.127-137
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    • 2014
  • Project Financing (PF) development project is the type which influences national economy and building industry largely because it is exerted by using borrowed money from many kinds of investors and huge amount of financial raising. Many domestic PF projects are focused mainly on the profit maximization lacking in a sufficient feasibility study. Nowadays many projects are suspending due to the global finance debacle and stagnation of real estate industry. Therefore, in this paper, risk factors of PF project are deducted and Key Success Factors (KSFs) are derived through Factor-Analysis and qualified using Fuzzy-AHP method. And through the evaluation of the derived success factors in real projects, a strong correlationship has been identified between the score of each PF success factor and the level of success and/or expected rate of return (ROR). So, the result of this paper can help decision makers of the PF projects make a better decision and give a meaningful guidance in achieving successful PF projects.

A Study on the Analysis of Success Factors about Frozen and Refrigerated Warehouses using Fuzzy-AHP (Fuzzy-AHP를 활용한 냉동·냉장창고의 운영 성공요인 분석에 대한 연구)

  • Gu, Tae-Jun;Cha, Young-Doo;Nam, Tae-Hyun;Yeo, Gi-Tae
    • Journal of Digital Convergence
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    • v.15 no.11
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    • pp.121-131
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    • 2017
  • The Fuzzy-analytic hierarchy process (AHP) was adopted as the methodology for this study because it allows for the use qualitative judgments by experts. Based on results of the analysis of the success factors for frozen storage/cold storage warehouses, the facility factor was identified as the most important to consider. This factor had a weight of 0.307, followed by systems and operations, accessibility, and standardization/automation with weights of 0.263, 0.255, and 0.175, respectively. The conclusions and implications of the study are as follows. First, the efficiency of constant temperature and humidity systems and the heat insulation property of buildings need to be enhanced. Second, the efficiency of the operations should be enhanced through the standardization of equipment rather than by standardizing product loading. Finally, since logistics and transportation costs are higher for frozen storage/cold storage warehouses than for general distribution, accessibility needs to be considered as the first priority.