• 산업경영시스템학회지
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• 제13권22호
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• pp.51-57
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• 1990

A new interactive multiobjective decision making technique, which is called the fuzzy sequential proxy optimization technique, has been proposed. This technique is the revised version the sequential proxy optimization technique that the decision-maker's marginal rates of substitution is interpreted as type of L-R fuzzy numbers. It used to the square of normalized scalar product as the doptimalilry condition. However, this technique ignores the imprecise nature of a decision-maker's judgement of marginal rates of substitution. Also, it have a shortcoming that can be only applied over three objective functions. In this paper, considering the imprecise nature of a decision-maker's judgement, we presents an interactive fuzzy decision-making method on the basis of the decision-maker's MRS presented through the use of five types of membership functions including non-linear functions. FORTRAN programs that run in conversational mode are developed to implement man-machine interactive procedure.

• 한국콘텐츠학회논문지
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• 제17권9호
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• pp.575-586
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• 2017

본 연구는 대학생들의 진로결정 자기효능감에 진로장벽과 사회적 지지의 영향을 알아보고자 하였다. 진로장벽과 진로결정 자기효능감의 관계에서 사회적 지지의 조절효과 모델을 설정하였다. 5개 대학의 1-4학년 대학생 307명의 응답이 분석되었다. 통계분석결과 진로결정 자기효능감은 학년이나 계열에 따른 차이는 나타나지 않았지만 성별에 따른 차이는 유의미하게 나타났다. 남학생이 여학생에 비해 진로결정 자기효능감이 높았다. 진로장벽은 진로결정 자기효능감에 부적 영향을 주었다. 진로장벽이 증가할수록, 진로결정 자기효능감은 낮아졌다. 또한 진로장벽은 사회적 지지와 상호작용 하여 진로결정 자기효능감에 영향을 주었다. 사회적 지지가 높은 경우에는 진로장벽이 진로결정 자기효능감에 더 많은 영향력을 행사하였지만 사회적 지지가 낮은 경우에는 진로장벽이 진로결정 자기효능감에 더 적은 영향을 주었다. 진로장벽을 낮추고 사회적 지지를 높이는 것은 결과적으로 진로결정 자기효능감을 높여 대학생의 진로발달에 도움을 줄 것이다.

• 경영과학
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• 제25권1호
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• pp.1-9
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• 2008

This paper investigates the R&D project portfolio selection problem. Despite its importance and impact on real world projects, there exist few practical techniques that help construct an non-dominated portfolio for a decision makers satisfaction. One of the difficulties constructing the portfolio is that such project portfolio problem is, in nature, a multi-attribute decision-making problem, which is an NP-hard class problem. This paper investigates the R&D project portfolio selection problem. Despite its importance and impact on real world projects, there exist few practical techniques that help construct an non-dominated portfolio for a decision makers satisfaction. One of the difficulties constructing the portfolio is that such project portfolio problem is, in nature, a multi-attribute decision-making problem, which is an NP-hard class problem. In order to obtain the non-dominated portfolio that a decision maker or a user is satisfied with, we devise a user-interface algorithm, in that the user provides the maximum/minimum input values for each project attribute. Then the system searches the non-dominated portfolio that satisfies all the given constraints if such a portfolio exists. The process that the user adjusts the maximum/minimum values on the basis of the portfolio found continues repeatedly until the user is optimally satisfied with. We illustrate the algorithm proposed, and the computational results show the efficacy of our procedure.

• 한국지능시스템학회논문지
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• 제19권2호
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• pp.265-272
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• 2009

Fuzzy number intuitionistic fuzzy sets (FNIFSs), each of which is characterized by a membership function and a non-membership function whose values are trigonometric fuzzy number rather than exact numbers, are a very useful means to describe the decision information in the process of decision making. Wang [10] developed some arithmetic aggregation operators, such as the fuzzy number intuitionistic fuzzy weighted averaging (FIFWA) operator, the fuzzy number intuitionistic fuzzy ordered weighted averaging (FIFOWA) operator and the fuzzy number intuitionistic fuzzy hybrid aggregation (FIFHA) operator. In this paper, based on the FIFHA operator and the FIFWA operator, we investigate the group decision making problems in which all the information provided by the decision-makers is presented as fuzzy number intuitionistic fuzzy decision matrices where each of the elements is characterized by fuzzy number intuitionistic fuzzy numbers, and the information about attribute weights is partially known. An example is used to illustrate the applicability of the proposed approach.

• 성인간호학회지
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• 제22권5호
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• pp.488-498
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• 2010

Purpose: The purpose of this study was to explore clinical nurse's reported conflict experience toward end-of-life medical decision making. Methods: Data were collected by in-depth interviews with eight nurses from three different wards of university hospital in D city of Korea. Conventional qualitative analysis was used to analyze the data. Results: Results were three major themes and twelve categories from the analysis. The three major themes were prioritization of treatment, non-disclosure of diagnosis, and hierarchical and power relations. Conclusion: The results of this study suggest that shared decision making in end of life among patient, family members, physician, and nurse may contribute to improve end-of-life care performance as well as dignified dying of patient in end of life.

• 한국생산제조학회지
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• 제24권4호
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• pp.441-447
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• 2015

This paper proposes a novel fuzzy-based multi-criteria decision making method and implements a footstep planner for humanoid robots with it. Humanoid robots require additional footstep planning process in addition to path planning for the autonomous navigation. Moreover, it is necessary to consider safety and energy consumption as well as path efficiency and multi-criteria decision making is indispensable. The proposed method can provide not only well- distributed and non-dominated, but also more preferable solutions for users. The planned footsteps by the proposed method were verified through simulation. The results indicate that the user's preference is properly reflected in optimized solutions maintaining solution quality.

• 대한간호학회지
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• 제40권6호
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• pp.863-871
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• 2010

Purpose: The purpose of this study was to examine the effects of case-base learning (CBL) using video on clinical decision-making and learning motivation. Methods: This research was conducted between June 2009 and April 2010 as a nonequivalent control group non-synchronized design. The study population was 44 third year nursing students who enrolled in a college of nursing, A University in Korea. The nursing students were divided into the CBL and the control group. The intervention was the CBL with three cases using video. The controls attended a traditional live lecture on the same topics. With questionnaires objective clinical decision-making, subjective clinical decision-making, and learning motivation were measured before the intervention, and 10 weeks after the intervention. Results: Significant group differences were observed in clinical decision-making and learning motivation. The post-test scores of clinical decision-making in the CBL group were statistically higher than the control group. Learning motivation was also significantly higher in the CBL group than in the control group. Conclusion: These results indicate that CBL using video is effective in enhancing clinical decision-making and motivating students to learn by encouraging self-directed learning and creating more interest and curiosity in learning.

• Ecology and Resilient Infrastructure
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• 제7권4호
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• pp.256-261
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• 2020

국내의 도로비점오염저감시설은 오염원을 저감시키는 성능에 근거해서 침투형, 식생형, 저류형, 인공습지 등과 같이 분류된다. 이 분류기법은 기법을 이해하기는 용이하나 도로교통과 관련된 요소가 고려되지 않아 실제 도로기술자가 계획이나 설계에 적용할 때 애로가 많았다. 본 연구에서는 도로비점오염저감시설을 설계에 적용할 때 시설의 종류를 결정할 수 있는 분류방법론을 개발하였다. 도로의 특성 (위치, 차선, 교통량), 시설여유, 도로의 구조물 등을 주요 결정인자로 도로비점저감 대책의 의사결정과정을 만들어 유형별로 시설을 선정할 수 있는 기법을 개발하였다. 각 유형별로 사이트의 조건과 적용이 가능한 시설 및 대책을 정리하여 현장에 적용할 수 있도록 하였다. 개발한 기법은 경기도 도로구역에 적용하여 보완하였고, 비점저감 계획에 사용할 수 있도록 하였다.

• 한국사회복지학
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• 제58권1호
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• pp.291-318
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• 2006

본 연구는 도시지역 미취업노인들의 취업의사결정 요인들을 규명하기 위하여 노인들의 취업의사와 인구사회학적인 요인, 건강 및 심리사회적 요인, 그리고 노동 및 경제적 요인들과의 관계를 분석하였다. 본 연구는 서울시 소재 노인종합복지관을 이용하시는 60세 이상의 노인들 중에서 총 220명을 편의 모집(Purposive Sampling)하여 구조화된 설문지로 면접자에 의한 설문을 실시하였고, 최종 194명을 분석에 활용하였다. 본 연구의 분석방법으로는 취업의사여부에 따른 조사대상들의 특성은 빈도, 백분율, 평균, $X^2$ 및 t-test 등의 통계를 통해서 산출하였고, 취업의사결정에 영향을 미치는 요인들을 규명하기 위하여 로지스틱 회귀분석(Logistic Regression)을 사용하였다. 본 연구의 주요 결과로는 도시거주 미취업 노인들의 취업의사여부는 노인들의 성별, 연령, 학력, 자녀수, 신체적 건강상태, ADL, 자아 효능감, 경제적 스트레스, 노동 총 종사기간 부동산 소득, 가족후원금 및 연금 급여수준 등 다양한 요인들에 의하여 결정된다는 것이 조사되었다. 이러한 노인취업의사결정에 영향을 미치는 다양한 요인들을 고려안 노인고용관련 정책, 제도 및 프로그램 개발 및 운영이 필요하다. 끝으로 본 연구결과를 바탕으로 고령사회에 대비한 노인취업 활성화를 위한 제언 및 함의를 개괄적으로 제시하였다.

• 한국간호교육학회지
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• 제18권3호
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• pp.393-402
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• 2012

Purpose: This study was conducted to test the effect of a Career Search Program on career search efficacy, career search behavior, and career decision making for nursing students. Methods: A non-equivalent pre-post test of a quasi-experimental design was used. Fifty first grade nursing students participated in the study with 22 in the experimental group and 28 in the control group. We used a Career Search Program which was held 6 times over 6 weeks, 90 minutes per session. Descriptive statistics, ${\chi}^2$-test, and independent t-test were used for statistical analysis with SPSS 19.0. Results: There were significant increases in career search efficacy (t=2.07, p=.044) and career search behavior(t=2.65, p=.011) in the experimental group compared to the control group. However, career decision making was not significantly changed (t=0.96, p=.342). Conclusion: These results suggest that a Career grade Search Program has an effect on increasing career search efficacy and career search behavior in first grade nursing students. In addition, more programs to impact career decision making should be developed for nursing college students.