• 제목/요약/키워드: Multi-criteria decision making problem

검색결과 64건 처리시간 0.023초

방사선 방어의 최적화 절차론 개발에 관한 연구 (A Study on the Development of Optimization Procedure for Radiological Protection)

  • 송종순
    • Journal of Radiation Protection and Research
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    • 제19권1호
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    • pp.1-11
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    • 1994
  • 방사선 방어의 최적화 수행에는 적용의 다양함 등을 고려할 때, 절차론이 반드시 필요하게 된다. 본 연구에서는 발전소 설계 단계에서의 최적화 절차론을 제시하고, 이를 피폭 저감대안의 선정 문제에 적용하였다. 의사결정 보조기법으로는 다기준 기법을 사용하였으며, 그 결과 대안의 우선순위를 결정하고, 최적화의 결과를 실제 적용하는 문제를 분석하였다. 이러한 최적화 절차론은 발전소 이외에 방사성 폐기물 관리나 방사선의 의학적 이용 둥의 분야에도 적용될 수 있다.

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불명료한 선호정보 하의 다기준 그룹의사결정 : Linguistic Quantifier를 통한 퍼지논리 활용 (Multi-Criteria Group Decision Making under Imprecise Preference Judgments : Using Fuzzy Logic with Linguistic Quantifier)

  • 최덕현;안병석;김성희
    • 지능정보연구
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    • 제12권3호
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    • pp.15-32
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    • 2006
  • 본 논문에서는 각 대안의 속성 평가와 속성 자체의 중요도에 대한 평가에 있어 불명료한 선호정보 형태로 주어진 경우, linguistic quantifier를 통한 퍼지논리를 활용하여 그룹의사결정을 지원하는 방법을 제시하였다. 불명료한 선호정보는 의사결정 관련 문헌에서 의사결정자에게 요구되는 선호정보 명시의 부담을 줄여주고, 판단의 모호성을 받아들이고자 하는 시각으로서 다뤄져 왔다. 그러나 불명료한 유형의 선호정보를 허용할 경우 의사결정그룹이 원하는 대안의 명확한 선택이 보다 어려워진다. 따라서 추가적인 정보획득을 위한 의사결정자들과의 상호작용이 요구되지만, 이는 불명료한 선호정보를 허용하였던 초기의 취지를 반감시킬 뿐더러, 반드시 최적의 대안을 보장하는 것도 아니다. 이러한 상황을 타계하기 위하여, fuzzy majority의 의미를 반영하고 있는 linguistic quantifier를 활용함으로써 satisfying solution을 구하는 절차를 제시하였다. 이는 mathematical programming을 활용한 의사결정 기법과 다수의 객체를 집성하기 위한 개략적 해법을 결합한 접근방식이다.

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Conceptual Design Based on Scale Laws and Algorithms Sub-critical Transmutation Reactors

  • Lee, Kwang-Gu;Chang, Soon-Heung
    • 한국원자력학회:학술대회논문집
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    • 한국원자력학회 1997년도 추계학술발표회논문집(1)
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    • pp.475-480
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    • 1997
  • In order to conduct the effective integration of computer-aided conceptual design for integrated nuclear power reactor, not only is a smooth information flow required, but also decision making fur both conceptual design and construction process design must be synthesized. In addition to the aboves, the relations between the one step and another step and the methodologies to optimize the decision variables are verified, in this paper especially, that is, scaling laws and scaling criteria. In the respect with the running of the system, the integrated optimization process is proposed in which decisions concerning both conceptual design are simultaneously made. According to the proposed reactor types and power levels, an integrated optimization problems are formulated. This optimization is expressed as a multi-objective optimization problem. The algorithm for solving the problem is also presented. The proposed method is applied to designing a integrated sub-critical reactors.

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An Analytic Delphi Network Process for Evaluating Telecommunication management Network Operation Systems (TMNOS)

  • Kim, Soung-Hie;Lee, Jin-Woo
    • 한국국방경영분석학회지
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    • 제24권2호
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    • pp.30-42
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    • 1998
  • The problems of evaluating Telecommunication Management Network Operation Systems (TMNOS) are Multi-Criteria Decision Making (MCDM) problems. A method for evaluating the TMNOS has not yet been clearly defined. A study of an effective and efficient management methodology for TMNOS, which are heterogeneous and complex, is needed. The components of TMNOS have attributes of dependence between considered criteria or alternatives. This type of dependence impact between criteria or alternatives is a network structure. We suggest a methodology of Analytic Delphi Network Process (ADNP) for evaluating TMONS. The TMNOS problem of Korea Telecom (KT) is suggested as a case study of the ADNP.

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Assessing the Unemployment Problem Using A Grey MCDM Model under COVID-19 Impacts: A Case Analysis from Vietnam

  • NGUYEN, Phi-Hung;TSAI, Jung-Fa;NGUYEN, Hong-Phuc;NGUYEN, Viet-Trang;DAO, Trong-Khoi
    • The Journal of Asian Finance, Economics and Business
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    • 제7권12호
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    • pp.53-62
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    • 2020
  • The COVID 19 pandemic has led to a new global recession and is still causing a lot of issues because of the delays in the employment of people. This scenario has severe consequences for many countries' labor markets in the world. This problem's complexity and importance requires an integrated method of subjective and objective evaluation rather than intuitive decisions. This research aims to investigate sustainable indexes for assessing the unemployment problem by using a Multi-Criteria Decision-Making Model (MCDM). Grey theory and Decision Making Trial and Evaluation Laboratory (GDEMATEL) are deployed to transform the experts' opinions into quantitative data. The analysis based on 20 crucial criteria is employed to determine the weights of sustainability of unemployment problems. The results revealed that the top ten of determinants are Economic growth, Industrialization, Foreign direct investment, Real GDP per capita, Education level, Trade Openness, Capacity Utilization Rate, Urbanization, Employability skills, Education system expansion, which have the most significant effects on the unemployment rate under COVID 19 impacts. Furthermore, GDEMATEL could effectively assess the sustainable indicators for unemployment problems in "deep and wide" aspects. The study proposes the Grey MCDM model, contributes to the literature, provides future research directions, and helps policymakers and researchers achieve the best solutions to the unemployment problems under "economic shocks."

Choosing an optimal connecting place of a nuclear power plant to a power system using Monte Carlo and LHS methods

  • Kiomarsi, Farshid;Shojaei, Ali Asghar;Soltani, Sepehr
    • Nuclear Engineering and Technology
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    • 제52권7호
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    • pp.1587-1596
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    • 2020
  • The location selection for nuclear power plants (NPP) is a strategic decision, which has significant impact operation of the plant and sustainable development of the region. Further, the ranking of the alternative locations and selection of the most suitable and efficient locations for NPPs is an important multi-criteria decision-making problem. In this paper, the non-sequential Monte Carlo probabilistic method and the Latin hypercube sampling probabilistic method are used to evaluate and select the optimal locations for NPP. These locations are identified by the power plant's onsite loads and the average of the lowest number of relay protection after the NPP's trip, based on electricity considerations. The results obtained from the proposed method indicate that in selecting the optimal location for an NPP after a power plant trip with the purpose of internal onsite loads of the power plant and the average of the lowest number of relay protection power system, on the IEEE RTS 24-bus system network given. This paper provides an effective and systematic study of the decision-making process for evaluating and selecting optimal locations for an NPP.

공간 다기준 의사결정 방법을 이용한 개별공시지가 비교표준지 선정 (Automatic Methods for Selecting Comparative Standard Land Parcels Using Spatial Multicriteria Making Rules)

  • 박수홍;홍성언;김현석;김정엽
    • Spatial Information Research
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    • 제11권1호
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    • pp.1-12
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    • 2003
  • 현재 개별공시지가를 산정하는 과정에서 비교표준지를 선정하는 작업은 지적 담당공무원의 수작업에 의하여 이루어지고 있다. 한정된 시간에 많은 개별필지의 비교표준지 선정 작업으로 인하여, 객관적이고 합리적으로 비교표준지를 선정하기에는 어려움이 있다. 또한 현재 NGIS(국가지리정보체계)나 US(도시정보체계)등에 의한 국가적인 지형정보체계 구축사업이 급속도로 진전되고 있다. 이에 따라 토지의 가치평가의 한 분야인 개별토지의 지가산정 작업도 최신의 자동화된 방법을 적용할 필요성이 증대되고 있다. 따라서, 본 연구에서는 공간 다기준 의사결정 방법 중에서 AHP, Concordance, Ideal Point 방법을 이용하며 비교표준지를 자동으로 선정하였다. 세 가지 방법을 적용하여 나온 결과를 현재의 비교표준지와 비교하여본 결과, Ai)p 방법이 가장 현실성이 있는 대안으로 선정되었다. 본 연구의 결과와 현재 사용중인 비교표준지를 연계하여 이용한다면 좀더 객관적이고 합리적인 비교표준지 선정이 이루어질 것으로 기대한다.

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휴대폰 렌즈모듈 조립라인 설계안 결정을 위한 경제성 분석 및 AHP응용 (Economic Assessment and Application of AHP for Determining the Design of Assembly Line for the Lens Module of Mobile Phone)

  • 문덕희;이근현;송준엽
    • 한국생산제조학회지
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    • 제20권4호
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    • pp.509-515
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    • 2011
  • When a manufacturing system is designed, various kinds of evaluation methods are used for selecting the best alternative. Net present value, inner rate of return and payback period are popular quantitative measures for the economic assessment, but other qualitative measures should be considered for evaluation. The analytic hierarchy process(AHP) has been used as the popular method for the multi criteria decision making problem that considers both quantitative and qualitative criteria. This paper explains the process of economic assessment, and how to use the AHP for evaluating the designs of the assembly lines for lens module installed in mobile phone.

AHP-Based Evaluation Model for Optimal Selection Process of Patching Materials for Concrete Repair: Focused on Quantitative Requirements

  • Do, Jeong-Yun;Kim, Doo-Kie
    • International Journal of Concrete Structures and Materials
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    • 제6권2호
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    • pp.87-100
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    • 2012
  • The process of selecting a repair material is a typical one of multi-criteria decision-making (MCDM) problems. In this study Analytical Hierarch Process was applied to solve this MCDM problem. Many factors affecting a process to select an optimal repair material can be classified into quantitative and qualitative requirements and this study handled only quantitative items. Quantitative requirements in the optimal selection model for repair material were divided into two parts, namely, the required chemical performance and the required physical performance. The former is composed of alkali-resistance, chloride permeability and electrical resistivity. The latter is composed of compressive strength, tensile strength, adhesive strength, drying shrinkage, elasticity and thermal expansion. The result of the study shows that this method is the useful and rational engineering approach in the problem concerning the selection of one out of many candidate repair materials even if this study was limited to repair material only for chloride-deteriorated concrete.

클라우드 컴퓨팅에서 Analytic hierarchy process를 활용한 작업 스케줄링 기법 (A Job Scheduling Scheme based on Analytic Hierarchy Process in Cloud Computing)

  • 김정원
    • 한국컴퓨터정보학회논문지
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    • 제18권8호
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    • pp.9-15
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    • 2013
  • 클라우드 컴퓨팅을 구성하는 자원은 이질적인 자원으로 구성되므로 다양한 요구사항의 작업을 이질적인 자원에 할당하는 것은 중요한 문제이다. 이는 다수의 판단 기준하에 다수의 선택 문제로 정의할 수 있는데 본 연구에서는 AHP (Analytic hierarchy process) 기법을 통해 이 문제를 해결하고자 한다. 본 연구에서는 작업의 특성을 고려한 우선순위기반 스케줄링 기법을 제안하는데 1단계에서는 작업의 중요도에 의해 우선순위를 부여하고 2단계에서는 응답시간, 시스템 이용율, 그리고 비용을 판단기준으로 하여 AHP알고리즘에 의해 최적의 자원에 작업을 할당한다. 제안하는 알고리즘의 분석과 실험을 통해 제안 기법의 효율성을 제시하고자 한다.