• Journal of Korean Dental Science
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• 제3권2호
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• pp.34-39
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• 2010

In our daily practice, we think about the diagnosis of our patient and get into a situation wherein we have to make a clinical decision. Diagnosis and treatment come from the knowledge and experiences that each dentist should have, but sometimes, we can have doubts on our decisions. "On what evidence did I make such decision? Was that really right?" Drawing our attention these days as a possible answer to this question, evidence-based dentistry seeks to apply the best available evidence gained from the scientific method to medical decision making. To make a good decision, the strength of evidence is assessed. Specifically, randomized controlled trial, systematic review, and meta-analysis are considered the highest level of evidence; cohort study, case control study, case series, animal study, bench test, and biological plausibility follow. With the approach of evidence-based dentistry, we can make objective, scientifically sound clinical decisions. It is also patient-oriented, incorporating clinical experiences and stressing good judgments; thorough and comprehensive, it uses transparent methodology. That is the reason evidence-based dentistry can be better than other assessment methods when we make a clinical decision in modern dentistry.

• 한국산업정보학회:학술대회논문집
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• 한국산업정보학회 2003년도 추계공동학술대회
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• pp.239-250
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• 2003

In this research, we propose a hybrid group decision support mechanism (H-GDSM) based on Fuzzy AHP (Analytic Hierarchy Process) and FCM (Fuzzy Cognitive Map). The AHP elicits a corresponding priority vector interpreting the preferred information among the decision makers. Corresponding vector was composed of the pairwise comparison values of a set of objects. Since pairwise comparison values are the judgments obtained from an appropriate semantic scale. However, AHP couldn't represent the causal relationship among information, which were used by decision makers. In contrast to AHP, FCM could represent the causal relationship among variables or information. Therefore, FCMs were successfully developed and used in several ill-structured domains, such as strategic decision-making, policy making, and simulations. Nonetheless, many researchers used subjective and voluntary inputs to simulate the FCM. As a result of subjective inputs, it couldn't avoid the rebukes of businessman. To overcome these limitations, we incorporated the Fuzzy membership functions, AHP and FCM into a H-GDSM. In contrast to current AHP methods and FCMs, the H-GDSM method developed herein could concurrently tackle the pairwise comparison involving causal relationships under a group decision-making environment. The strengths and contributions of our mechanism were 1) handling of qualitative knowledge and causal relationships, 2) extraction of objective input value to simulate the FCM, 3) multi-phase group decision support based on H-GDSM. To validate our proposed mechanism we developed a simple prototype system to support negotiation-based decisions in electronic commerce (EC).

• The Journal of Asian Finance, Economics and Business
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• 제9권9호
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• pp.351-360
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• 2022

This study aims to determine the factors that can influence investors in selecting stocks in the Indonesian capital market to establish an optimal portfolio, and find phenomena that occurred during the COVID-19 pandemic so that buying interest / the number of investors increased in the Indonesian capital market. This study collection technique uses primary data obtained from the survey questionnaire and secondary data which is market data, stock price movement data sourced from the Indonesia Stock Exchange, Indonesian Central Securities Depository, and Bank Indonesia, as well as empirical literature on behavior finance, investment decision, and interest in buying stock. The method used in this research is the survey questionnaire analysis with the SEM (statistical approach). The results of the analysis using SEM show that investor behavior influences the stock-buying interest, investor behavior, and the stock-buying interest influences investor decision-making. However, risk management does not influence investor-decision making. This occurs when the investigator's psychological capacity produces more decision information by decreasing all potential biases, allowing the best stock selection model to be selected. When the investigator's psychological capacity creates more decision information by reducing biases, the optimum stock selection model can be chosen.

• 한국건축시공학회지
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• 제17권6호
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• pp.559-566
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• 2017

공공공사의 입찰 방식 결정은 공무수행담당자의 경험 및 업무의 편의성 등을 고려하여 결정되고 있는데, 입찰을 위한 방식 결정 과정의 타당성 검증은 이루어지지 못하고 있는 실정이다. 입찰방식의 선정에 있어 또다른 도전과제는 경험위주의 의사결정을 근간으로 하고 있어 새로운 형태의 프로젝트 발주 또는 새로운 형태의 입찰방식 적용 시 그것에 대한 객관적 타당성을 마련할 방법이 쉽지 않다는 점이 있다. 따라서 본 연구는 공공공사 프로젝트 발주 방식 선정에 도움을 줄 수 있는 의사결정모델을 개발하고 이의 활용성을 검토하고자 한다. 본 연구는 계층분석적의사결정기법을 이용하여 모델을 개발하였고 실제 업무 수행 담당자 32명을 통해 검증하였다. 모델 활용결과 32명 중 5명의 모델활용에 일관성이 있었으며, 담당자들은 모델에 전적으로 의존할 수 없다는 사실을 인지하면서도 가이드를 제시해줄 수 있다는 점에서 긍정적 의견을 제시하였다. 이를 통해 본 연구에서 제시한 모델이 향후 새로운 형태의 입찰방식 또는 과제 발생 시 관련 업무 수행자의 업무관련 부담을 줄여주고 객관적인 공무수행에 도움을 줄 수 있을 것으로 기대된다.

• 한국가족복지학
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• 제54호
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• pp.107-153
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• 2016

본 연구의 목적은 연상녀-연하남 부부의 결혼결정 경험과 과정을 알아보고, 연상녀-연하남 부부의 결혼결정 과정에 영향을 미치는 요인을 탐색하는 것이다. 이를 위하여 연상녀-연하남 부부인 30-40대 여성 11명을 대상으로 심층면접을 실시하였고, 자료 분석은 근거이론 방법을 적용하였다(Strauss and Corbin, 1998; Corbin and Strauss, 2008). 본 연구의 연구문제는 '연상녀-연하남 부부의 결혼결정 경험과 과정은 어떠한가?', '연상녀-연하남 부부의 결혼결정 과정에 영향을 미치는 요인은 무엇인가?'이다. 본 연구결과 78개의 개념들과 31개의 하위범주, 14개의 범주가 도출되었다. 중심현상으로 '친밀감과 불안의 양가감정'의 범주가 도출되었으며, 연상녀-연하남 부부의 결혼결정 과정은 '조정단계', '수용단계', '행동화단계'로 나타났다. 연상녀-연하남 부부의 결혼결정 과정의 핵심범주는 '다름의 편견을 넘어 신뢰로운 친밀함에 안착함'이었다. 연구결과와 논의를 토대로 연상녀-연하남 부부를 위한 전문적 조력개입 방안 및 실천적 함의를 제시하였다.

• Smart Structures and Systems
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• 제21권1호
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• pp.123-137
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• 2018

Structural monitoring is the most important part of the construction and operation of the embankment dams. Appropriate instruments selection for dams is vital, as inappropriate selection causes irreparable loss in critical condition. Due to the lack of a systematic approach to determine adequate instruments, a framework based on three comparable Multi-Attribute Decision Making (MADM) methods, which are VIKOR, technique of order preference by similarity to ideal solution (TOPSIS) and Preference ranking organization method for enrichment evaluation (PROMETHEE), has been developed. MADM techniques have been widely used for optimizing priorities and determination of the most suitable alternatives. However, the results of the different methods of MADM have indicated inconsistency in ranking alternatives due to closeness of judgements from decision makers. In this study, 9 criteria and 42 geotechnical instruments have been applied. A new method has been developed to determine the decision makers' importance weights and an aggregation method has been introduced to optimally select the most suitable instruments. Consequently, the outcomes of the aggregation ranking correlate about 94% with TOPSIS and VIKOR, and 83% with PROMETHEE methods' results providing remarkably appropriate prioritisation of instruments for embankment dams.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2006년도 정기학술발표대회 논문집
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• pp.698-701
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• 2006

연약지반 상에 구조물의 안정 및 침하 문제를 해결하기 위해 다양한 연약지반 개량공법들이 사용되고 있으며, 계속해서 새로운 공법들이 검증과정을 거쳐 소개되고 있다. 이처럼 다양한 공법들 중에서 해당 공사에 가장 적합한 공법을 선정하는 것은 매우 중요한 일이다. 본 연구에서는 의사결정시 사용되는 영향요소들의 중요도를 정량화시켜 가중치와 우선순위를 도출함으로써 연약지반 개량공법 선정 과정에서 기술적 ${\cdot}$ 경제적 항목에 대한 체계적인 기준을 제시하고자 하였다.

• Industrial Engineering and Management Systems
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• 제1권1호
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• pp.58-63
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• 2002

Recently a new multi-attribute analysis method is one of the evident areas of important points in the decision support system analysis. The area of decision support system may be broken into three primary area: idea generation, multi-attribute structured analysis method, and the integration of the results of analysis. This research developed an internet/intranet-based solution builder for a three-step decision support system in the view of 1) brainstorming for the idea generation, 2) analytic hierarchy process as a multi-attribute structured analysis method and 3) aggregating logic model to integrate the results of individual analysis. A computer program is developed and demonstrated in internet/intranet-based decision problem. This solution builder provides decision makers a good tool for remote group decision making.

• 성인간호학회지
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• 제15권2호
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• pp.236-246
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• 2003

Purpose: The purpose of this study was to examine the differences of the process of change, decision making, self-efficacy and perception of subjective health according to the stages of exercise behaviors suggested by transtheoretical models among older adults. Method: The subjects consisted of 291 older adults. Trained research assistants interviewed the older adults using structured questionnaires. ANOVA analyses with post hoc test were used to examine the mean differences for each stage of exercise behavior using SPSS for windows. Result: The subjects were divided into five stages of exercise behavior: 24.4% precontemplation, 12.4% contemplation, 17.9% preparation, 12.4% action, 33.0% maintenance stage. There were significant differences in process of change, decision making, self-efficacy and subjective health perception according to the exercise stage of change. 'Self-liberation' and 'stimulus control' were important strategies for intention of exercise, while 'reinforcing management' for the actual practice of exercise. 'Self-efficacy' was an effective strategy to change older adults from pre-contemplation to preparation stage. Conclusion: For exercise intervention, older adults should be classified into groups according to their stages of exercise behaviors and provided effective individualized intervention depending on their stage.

• 중환자간호학회지
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• 제9권1호
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• pp.15-26
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• 2016

Purpose: The aim of this study was to identify thinking strategies in the complicated decision-making process based on real patient-based data of triage nurses in the emergency department (ED). Methods: This study used the 'think aloud' method to collect data from 8 triage nurses from one general hospital ED in South Korea. The data were analyzed with protocol analysis using thinking strategies. Results: The triage process was divided into three stages. The first stage consisted of 8 thinking strategies, including searching for information. They used intuition based on directly observed concepts for identifying a crisis. The second stage consisted of 17 thinking strategies related to the decision-making process. They assessed patients and generated a hypothesis to try to understand their health problems through analytic thinking. The third stage consisted of 10 thinking strategies, including qualifying. They considered the situation of the ED and properly triaged the patients. During the triage process, they frequently used judging the value and searching for information on 17 thinking strategies. Conclusions: Triage nurses demonstrated various connected thinking strategies for each stage. Based on our results, further studies should be done to develop a triage education program.