• Title/Summary/Keyword: Maker Model

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Development of a Decision Support System Shell for Problem Structuring (문제구조화를 위한 의사결정지원시스템츠 쉘의 개발)

  • 이재식;박동진
    • Journal of the Korean Operations Research and Management Science Society
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    • v.19 no.3
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    • pp.15-40
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    • 1994
  • We designed a knowledge-based decision support system for structuring semi-or unstructured problems. Problem structuring involves extraction of the relevant factors from the identified problem, and model construction that represents the relationships among those factors. In this research, we employed a directed graph called Influence Deiagram as a tool for problem structuring. In particular, our proposed system is designed as a shell. Therefore, a decision maker can change the content of the knowledge base to suit his/her own interested domain.

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A Case Study on the Christian Worldview Education Program through Maker Education Based Design Thinking at Christian University (기독 대학의 디자인사고 기반 메이커교육을 통한 기독교 세계관 교육 프로그램 운영 사례 연구)

  • Seongah Lee;Hyeajin Yoon
    • Journal of Christian Education in Korea
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    • v.73
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    • pp.117-137
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    • 2023
  • This is a case study of an extra-curricular program that designed and implemented maker education based on design thinking to foster a Christian worldview. The program was designed at K university in the course of 10 sessions as following stages; tinkering, providing a special lecture for motivation, finding issues, empathizing, making, sharing and reflecting. A total of 15 students in 5 teams participated in the program, progressed through each stage in the process of solving the problems they found around them so that their neighbors and the creative world could become better. As a result of operating this program, the participants became concerned about their neighbors and community and reflected on the change of perspective of the world from a Christian worldview. As a suggestion for follow-up research and projects, to develop a model of maker education based on design thinking for cultivating a Christian view of the world is proposed in order to support to easy design and management of the program even if there is a lack of professional related knowledge and experience. In addition, it is needed to develop a manual and guide book including a facilitator's role and an assessment tool like a rubric that can give feedback on the performance of the program and make improvement.

The selection of computerized manufacturing control system using MCDM model (다기준의사결정 모형을 이용한 전산화된 제조관리시스템의 선정에 관한 연구)

  • 정상윤;양대용
    • Journal of the Korea Society of Computer and Information
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    • v.6 no.1
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    • pp.113-118
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    • 2001
  • The purpose of this study is the optimal selection for evaluating alternative computerized manufacturing control software packages. The evaluation and analysis of the alternative computerized manufacturing control software packages is based on a model for Multi-Criteria Decision Making(MCDM). The ultimate of MCDM is to take the best choice among the alternatives or to rank them and the procedure depends on the decision maker's subjective judgement. An example is given to illustrate the application of the MCDM model.

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Information Cascade and Individual Characteristics in Adopting Blogging (정보 캐스케이드와 개인특성이 블로깅 의도에 미치는 영향)

  • Yang, Kwang-Min;Lim, Byung-H.;Kim, Yong-Kyun
    • Asia pacific journal of information systems
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    • v.15 no.4
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    • pp.89-107
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    • 2005
  • As new information technology(IT) adoption continues to produce many investment opportunities, imperfectly informed IT managers keep trying to acquire credible external signals to update their knowledge on new technologies. Such learning processes usually help them to reach better IT adoption decisions. In some cases, however, the opposite of the goal is achieved. Most IT managers quickly converge to the same adoption decision independent of their private information. Interestingly, such information cascade is the outcome of each individual decision maker's rational choice. A technology acceptance model(TAM) is adopted that has been widely used to predict the end-user's acceptance of a new technology. A model with individual charact-eristics and information cascade variables is constructed to explain user's intention in adopting blogging. The model is empirically tested with surveyed data. The results show that individual characteristics and information cascades have significant impacts in the case of blogging.

A Study on Work-to-Home Trip Distribution Models Based on A Stochastic Equilibrium: A Consumer Welfare Approach (확률적 평행에 토대를 둔 Work-to-Home 통행배분모형 연구)

  • 이호병
    • Journal of Korean Society of Transportation
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    • v.12 no.1
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    • pp.43-54
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    • 1994
  • The major concern of this paper is to investigate the properties of a stochastic equilibrium for each model system in terms of a consumer welfare measure. The primary assumption for this study is that a trip-maker would choose the trip from his origin zone which maximizes his personal welfare. This assumption, finally, leads to a singly constrained gravity model. The consumer welfare measure is derived from the concept of expected welfare of randomly sampled trip-makers. Each of the four different models considered in this paper is differentiated depending on the complexity of its model or the definition of its travel function. In this study, three different regions are chosen for the purpose of taking into account the effects of different zone-systems on the properties of a stochastic equilibrium : (i) Archerville region (5 zone) ; (ii) San Francisco Bay regions (30 zones) ; (iii) Houston, TX region (199 zones). It is concluded that almost identical, "global" consumer welfare values can be obtained in some cases of the gravity-type trip distribution models based on a stochastic equilibrium.

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An Interactive Multi-objective Decision Making Technique for Sequencing Mixed Model Assembly Lines Based on Evolution Programs (진화프로그램에 기반을 둔 혼합모델 조립라인의 투입순서를 위한 대화형 다목적 의사결정 기법)

  • Kim, Yeo-Keun;Lee, Soo-Yeon
    • Journal of Korean Institute of Industrial Engineers
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    • v.25 no.3
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    • pp.310-320
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    • 1999
  • A mixed model assembly line (MMAL) is a special type of production line where a variety of product models similar in product characteristics are assembled. Determining the model sequence is an important problem for the efficient use of MMALs. This paper considers interactive multiobjective decision making problems for MMAL sequencing. Evolution program is employed as an underlying framework. In this study, a way of approximating the linear utility function is first studied. To improve its search efficiency to the solution space preferred by a decision maker, some modifications of a standard evolution program are made: operating several subpopulations instead of a single population and merging two or more subpopulations to a single subpopulation, and using a Pareto pool. Extensive computational experiments are carried out to verify the performance of the proposed approach. The computational results show that our approach is promising in solution quality.

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Changes in Risk-taking Bahavior in Repetitive Choice Situation (반복적 의사결정에서 위험선호성향의 변화)

  • 이강인;정지안;김영겸;조성구
    • Journal of the Korean Operations Research and Management Science Society
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    • v.18 no.3
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    • pp.65-77
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    • 1993
  • It is not to observe that a decision-maker frequently changes his choice strategy in the repetitive gamble choice situation. This change in risk preference attitude, however, is not well explained with the existing gamble choice models, such as Bell's disappointment-elation model which is an interesting extension of the classical MEU model. This paper shows that this change in risk preference attitude should be interpreted as a systematic transition of "d" and "e", the disappointment and elation constants of Bell's model repectively. A laboratory experiment is also performed to identify the factors which greatly affect the decision-makers' risk preference attitude change. The number of consecutive successes/failures and the amount of remaining capital found to be statistically significant factors.significant factors.

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Changes in risk-taking behavior in repetitive choice situation (반복적 의사결정시 위험선호성향의 변화)

  • 이강인;조성구
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 1992.04b
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    • pp.282-292
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    • 1992
  • It is not rare to observe that a decision-maker frequently changes his choice strategy in the repetitive gamble choice situation. This change in risk preference attitude, however, is not well explained with the existing gamble choice models, such as Bell's disappointment-elation model which is an interesting extension of the classical MEU model. The paper shows that this change in risk preference attitude should be interpreted as a systematic transition of "d" and "e", the disappointment and elation constants of Bell's model. A laboratory experiment is also performed to identify the factors which greatly affect the decision-makers' risk preference attitude change. The number of consecutive successes/failures and the amount of remaining capital found to be statistically significant factors.significant factors.

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An Interactive Group Decision Support Procedure Considering Preference Strength (선호강도를 고려한 그룹의사결정지원 앨고리듬)

  • Han, Chang-Hee
    • Journal of the Korean Operations Research and Management Science Society
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    • v.27 no.4
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    • pp.111-126
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    • 2002
  • This paper presents an interactive decision procedure to aggregate each group member's preferences when each group member articulates his or her preference information incompletely. An index, an indicative for the preference strength between alternatives, is derived to aid each decision maker to articulate preference information about alternatives. We develop a mathematical programming model that can establish dominance relations when the preference information about values of alternatives, attribute weights, and group member's importance weights are provided incompletely. Also, the preference relation between alternatives is to be considered in the model. Based on the preference strength measure and mathematical model, we develop an interactive group decision support procedure.

Design of Fuzzy IMM Algorithm based on Basis Sub-models and Time-varying Mode Transition Probabilities

  • Kim Hyun-Sik;Chun Seung-Yong
    • International Journal of Control, Automation, and Systems
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    • v.4 no.5
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    • pp.559-566
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    • 2006
  • In the real system application, the interacting multiple model (IMM) based algorithm requires less computing resources as well as a good performance with respect to the various target maneuverings. And it further requires an easy design procedure in terms of its structures and parameters. To solve these problems, a fuzzy interacting multiple model (FIMM) algorithm, which is based on the basis sub-models defined by considering the maneuvering property and the time-varying mode transition probabilities designed by using the mode probabilities as inputs of a fuzzy decision maker, is proposed. To verify the performance of the proposed algorithm, airborne target tracking is performed. Simulation results show that the FIMM algorithm solves all problems in the real system application of the IMM based algorithm.