• Title/Summary/Keyword: Alternative Decision

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Multi-Criteria Group Decision Making under Imprecise Preference Judgments: Using Fuzzy Logic with Linguistic Quantifier

  • Choi, Duke-Hyun;Ahn, Byeong-Seok;Kim, Soung-Hie
    • Proceedings of the Korea Inteligent Information System Society Conference
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    • 2005.11a
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    • pp.557-567
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    • 2005
  • The increasing complexity of the socio-economic environments makes it less and less possible for single decision-maker to consider all relevant aspects of problem. Therefore are, many organizations employ groups in decision making. In this paper, we present a multiperson decision making method using fuzzy logic with linguistic quantifier when each of group members specifies imprecise judgments possibly both on performance evaluations of alternatives with respect to the multiperson criteria and on the criteria. Inexact or vague preferences have appeared in the decision making literatures with a view to relaxing the burdens of preference specifications imposed to the decision-makers and thus taking into account the vagueness of human judgments. Allowing for the types of imprecise judgments in the model, however, makes more difficult a clear selection of alternative(s) that a group wants to make. So, further interactions with the decision-makers may proceed to the extent to compensate for the initial comforts of preference specifications. These interaction may not however guarantee the selection of the best alternative to implement. To circumvent this deadlock situation, we present a procedure for obtaining a satisfying solution by the use of linguistic quantifier guided aggregation which implies fuzzy majority. This is an approach to combine a prescriptive decision method via a mathematical programming and a well-established approximate solution method to aggregate multiple objects.

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A Dual-Level Model of Team Decision Making (팀 의사결정에 대한 이원적 단계 모델)

  • Kang, Min-Cheol
    • Asia pacific journal of information systems
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    • v.14 no.2
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    • pp.37-59
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    • 2004
  • Team decision making is a collective behavior that needs to be understood by considering properties belonging to team and individual member domains together. This paper introduces a conceptual model called "Dual-Level(DL)" model that describes a team decision-making process in terms of team level, member level, and the relationship between them. The team-level view explains the decision-making process by considering the team as a wholeand divides the process into three stages: Problem Conceptualization, Alternative Generation, and Selection. The member-level view describes what happens to individual members when they go through the group process and splits it into the five phases: Individual Cognitive Mapping, Problem Decomposition, Subproblem Session, Subproblem Integration, and Team Decision. The DL model works as a theoretical framework to explore team decision making by using a set of computational models of team design and team members. In practice, the conceptual framework is used to build a computational model of decision making team, called "Team-Soar."

On the Optimal Decision Making in the Compensatory Models (보정모형에서의 최적 의사결정에 관한 연구)

  • Chung, Soon-Suk
    • Journal of the Korea Safety Management & Science
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    • v.8 no.4
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    • pp.205-218
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    • 2006
  • Multi-criteria decision making is deducing the relative importance in the criterion of decision making and each alternative which is able to making a variety of choices measures the preferred degree in the series of town ranking criterions. Moreover, this is possible by synthesizing them systematically. In general, a fundamental problem decision maker solve for multi-criteria decision making is evaluating a set of activities which an considered as the target logically, and this kind of work is evaluated and synthesized by various criterions of the value which a chain of activities usually hold in common. In this paper, we use the compensatory models for the optimal decision making. For the purpose of optimal decision making, the data of five different car models are used in Europe.

A Strategy Evaluation Procedure using VDMP (VDMP를 이용한 전략대안 분석 및 평가절차)

  • 조용욱;박명규
    • Journal of the Korea Safety Management & Science
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    • v.3 no.2
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    • pp.133-144
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    • 2001
  • This article deals with the multiple alternative proposal of Strategy. when Decision makers meet a very complex and important problems to take a good choice. It might not be easy that we make a decision and accept the decision as an exact result of analysis at a complication and uncertain situation. Although the decision under unpredictable state is many existence and each field is classified to support it. he can not provide exact estimations and be able to specify a result and forecasting. This is the reason why the original research use Statistical Survey method and Visual Decision Making Process(VDMP) to improve decision analysis method. Therefore, Our research suggests that the VDMP utilized in the strategic decision making situation as a group decision adding tool, can be applied in the development of a process vision and implementation plan. as a result, researcher describe step by step the process of VDMP.

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Decision of River Rehabilitation Plan using Multi-criteria Decision Making (다기준 의사결정을 활용한 자연형 하천 대안 선정)

  • Cho, Hong-Je;Hwang, Jae-Ho;Yoon, Jong-Chun
    • Journal of Wetlands Research
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    • v.12 no.2
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    • pp.87-93
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    • 2010
  • River restoration plan and selection method are needed to reflect the diversity of river. Meanwhile, the ultimate purpose of river restoration is natural recovery of the river. Recently. hydrophilic enhancement is a tendency to include. In this study, naturalness of a river was used to establish alternative for the natural river recovery. Also, naturalness of a river calculated by using the evaluation of river naturalness that was developed using multi-criteria decision making to fit the environmental conditions in Korea. After selection the evaluation items for assessing the naturalness of the river based on the characteristics of the river, multiple alternatives were constructed and the naturalness of river for each of those alternatives were estimated. Comparing the estimated values has made the measurement of the natural recovery effect for each alternative efficient.

A study on the use of Alternative Therapies for Cancer Patients Undergoing Chemotherapy (항암화학요법제 투여 중인 암환자의 대체요법 이용실태 및 의사결정요인)

  • Oh, Hyo-Sook;Park, Hyeoun-Ae
    • Asian Oncology Nursing
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    • v.4 no.1
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    • pp.5-15
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    • 2004
  • Purpose: This study was conducted to examine utilization of alternative therapies and understand decisional criteria related to use of alternative therapies among chemotherapy patients. Method: Data were collected from 165 cancer patients through the use of questionnaire and interviews at the chemotherapy treatment rooms of two general hospitals located in Seoul. Result: Sixty point six percent of subjects after cancer diagnosis have experience of using alternative therapies and 39.4% were still using alternative therapies. On the average the patients used alternative therapies for 9.4 months and they paid 483,000 Won per month for alternative therapies. Decisional criteria related to use of alternative therapy were curability, social group influence about alternative therapy, confidence in alternative therapy, present symptoms, and who decide on the use of alternative therapy. These variables in the alternative therapy group were statistically different from those of the hospital treatment only group. Conclusion: Utilization rate of alternative therapy among chemotherapy patients is high and cost burden is heavy. Thus, they need to be educated about utilization of alternative therapy by nurse and medical personnel.

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On the Opimal Decision Making using the Eigenvector Methods (고유벡터 법을 이용한 최적 의사결정에 관한 연구)

  • Chung Soon-Suk
    • Proceedings of the Safety Management and Science Conference
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    • 2006.04a
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    • pp.123-131
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    • 2006
  • Multi-criteria decision making is deducing the relative importance in the criterion of decision making and each alternative which is able to making a variety of choices measures the preferred degree in the series of low-raking criterions. Moreover, this is possible by synthesizing them systematically. In general, a fundamental problem decision maker solve for multi-criteria decision making is evaluating a set of activities which are considered as the target logically, and this kind of work is evaluated and synthesized by various criterions of the value which a chain of activities usually hold in common. In this paper, we are the eigenvector methods in weights calculating. For the purpose of making optimal decision, the data of five different car models are used. For computing, we used Visual Numerica Version 1.0 software package.

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Development of A Web-based Buying Decision Support System for A Cyber-Shopping Mall (사이버쇼핑몰을 위한 웹기반 구매 의사결정지원시스템의 개발)

  • Jeong, Byung-Ho;Kim, Woo-Ju;Doo, Kye-Woong;Lee, Keun-Ryul;Yang, Pil-Su
    • Asia pacific journal of information systems
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    • v.13 no.2
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    • pp.105-117
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    • 2003
  • As E-commerce is getting more popular, consumers faces more decision complexity than ever before because they can get greater alternative choices. Futhermore, consumers are sometimes motivated to expand effort in making a good decision in the case of relatively important and non-routine decison, such as buying a house or car. Thus, a buying decision support function is required to help consumers make decisions that have the greatest effects on consumer's lives. We develop a propotype system of a web-based buying decision support system for a cyber shopping mall. A buying decision of a consumer is a multi-attribute decision problem and is supported using analytic hierarchy process model. The system was implemented using HTML, Java, Java applet, JSP.

A Policy Build up & Evaluation Procedure for IT-Venture Business using VDMP (VDMP를 이용한 IT-벤처 사업 정책대안 도출 방법 및 평가절차)

  • 이경록;서장훈;박명규
    • Journal of the Korea Safety Management & Science
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    • v.4 no.3
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    • pp.141-156
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    • 2002
  • This article deals with the multiple alternative proposal of Venture Business policy. when Decision makers meet a very complex and important business to take a good choice. It might not be easy that we make a decision and accept the decision as an exact result of analysis at a complication and uncertain situation. This is the reason why the original research use Statistical Survey method and Visual Decision Making Process(VDMP) to improve decision analysis method. Therefore, Our research suggests that the VDMP utilized in the strategic decision making situation as a group decision adding tool, can be applied in the development of a process vision and implementation plan. as a result, researcher describe step by step the process of VDMP