• Title/Summary/Keyword: Analytic Judgement

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Optimal Design of Bank Protection Work Using Analytic Hierarchy Process (계층분석과정을 이용한 최적 호안공법 선정)

  • Lee, Jae-Mun;Lee, Sang-Il
    • Journal of Korea Water Resources Association
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    • v.41 no.6
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    • pp.619-628
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    • 2008
  • Bank protection is a structure constructed to protect directly embankment breakage and erosion by river flow. Traditionally, the type of bank protection has been decided by practitioner's subjective and empirical judgement, which often causes problems after construction. Recently, however, it becomes important to consider not only physical protection but also environment. Various types of bank protection for environment-friendly river are now available. Thus, there is a need for more objective and quantitative decision method for bank protection work. This study adopts the analytic hierarchy process (AHP) to improve the objectiveness in the decision of bank protection work. Criteria for stability, economy, construction, environment are identified and a standardized process is presented for field application. With the proposed method, one can prioritize various bank protection works and make the optimal decision. We believe that the method can serve as a useful tool for river engineers in practice.

A Study on Competition Strategy of Korail's Logistics Services Using Hierarchical Fuzzy Process and Fuzzy Relation Equation (Hierarchical Fuzzy Process법 및 퍼지관계방정식을 이용한 철도물류서비스의 경쟁우위 전략에 관한 연구)

  • Yoo Seung-Yeul;Lee Jae-Won;Kwan Yong-Jang
    • Journal of the Korean Society for Railway
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    • v.9 no.4 s.35
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    • pp.432-440
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    • 2006
  • Prior to the service evaluation, many kinds of its attributes must be identified on the basis of rational decision owing to complexity and ambiguity inherent in logistics service. there are so many evaluation methods but they are not applicable to logistics service the have property of non-additivity and overlapped attributes. Therefore, probability measure can not used to evaluate logistics service but Fuzzy Measure is required. And the method should be easy to calculate it Recently Fuzzy theory has been applied in Various evaluation problem. Fuzzy evaluation based on Fuzzy theory can accommodate fuzziness in judgement with people through introducing Fuzzy Measure. In this paper, Hierarchical Fuzzy Process is applied to evaluate level of logistics service in Korail and the biggest six logistics companies in the korea which is called 3PL Company. Also Fuzzy Relation Equation which is problem identifying evaluation value at these fuzzy evaluation is applied to verify relation between Input and Output data through @-operation. Therefore, we apply this Fuzzy Relation Equation to Hierarchical Fuzzy Process and verify evaluation value which objects of evaluation are able to possess.

A Study on the Design of a Textbook for an Education of Korean Apparel Merchandisers. (한국 어패럴 머천다이저 육성 교재 체제 수립에 대한 연구)

  • 유연실;오현정
    • Korean Journal of Human Ecology
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    • v.3 no.2
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    • pp.101-111
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    • 2000
  • The purpose of this study is to examine needed abilities of Korean apparel merchandisers and to propose a basic design of textbook for an education of Korean apparel merchandisers. For this purpose. the role and needed abilities of Korean apparel merchandisers'. and the contents of other textbooks under same topic were examined. Data of Korean apparel merchandisers'abilities to execute their role were collected by interviewing 7 apparel merchandisers who work for major Korean apparel manufacturers. Korean apparel merchandisers are expected to have following abilities : comprehensive and analytic Judgement. knowledge of clothing and textiles. deep understanding of the apparel market, budget planning and accounting. cooperation in the execution of tasks, ability of summarizing data, healthcare, and computing skills. The textbook is divided into five parts. The titles and brief description of them are as follows : Part I - Introduction Basic concept and composition factors of apparel merchandising and the role of apparel merchandisers in Korean apparel industry will be discussed. Part II - Apparel Merchandising Environment The structure of apparel manufacturers and apparel industries In Korea. other environmental factors, and apparel consumer behavior will be investigated. Part III - Apparel Market Analysis Market segmentation. brand evaluation, product positioning. target market strategies, and market research will be investigated. Part IV- Apparel Merchandising Apparel merchandising processes will be introduced and explained in detail. Part V - Global Apparel Merchandising Global apparel merchandising environment and strategies. and global sourcing and marketing will be discussed.

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Evaluating the effectiveness of ERS for vessel oil spills using fuzzy evidential reasoning

  • Wang, H.Y.;Ren, J.;Yang, J.Q.;Wang, J.
    • Ocean Systems Engineering
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    • v.5 no.3
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    • pp.161-179
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    • 2015
  • An emergency response system (ERS) for vessel oil spills is a complex and dynamic system comprising a number of subsystems and activities. Failures may occur during the emergency response operations, this has negative impacts on the effectiveness of the ERS. Of the classes of problems in analyzing failures, the lack of quantitative data is fundamental. In fact, most of the empirical data collected via questionnaire survey is subjective in nature and is inevitably associated with uncertainties caused by the human being's inability to provide complete judgement. In addition, incomplete information and/or vagueness of the meaning about the failures add difficulties in evaluating the effectiveness of the system. Therefore this paper proposes a framework to evaluate the ERS effectiveness by using the combination of fuzzy reasoning and evidential synthesis approaches. Based on analyzing the procedure of ERS for oil spills, the failures in the system could be identified, using Analytic Hierarchy Process(AHP)to determine the relative weight of identified failures. Fuzzy reasoning combined with evidential synthesis is applied to evaluate the effectiveness of ERS for oil spills under uncertainties last. The proposed method is capable of dealing with uncertainties in data including ignorance and vagueness which traditional methods cannot effectively handle. A case study is used to illustrate the application of the proposed method.

A Study on Priority Decision for Roundabouts Implementation using Analytic Hierarchy Process (AHP기법을 이용한 회전교차로 도입의 우선순위 결정에 관한 연구)

  • Woo, Yong-Han;Kim, Min-Seok
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.12 no.6
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    • pp.87-96
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    • 2013
  • Roundabouts are recently paid a lot of attention, but in the process of implementation, there are insufficient logical grounds for clear criteria and priority of introduction. As a result, in determining priority of introduction of roundabouts, a local government often depends on a policy maker's subjective judgement. Therefore, this study was conducted to suggest methodology for priority decision of introduction of roundabouts. Assessment elements of six main elements including accident type at intersections and each one has three subelements. Survey was carried out targeting fifty-three public officials in charge and experts in order to analyze the significance of each assessment element. The theoretical background of analysis is based on AHP developed by Saaty, which is one of multiple criteria decision making methods. 'Expert Choice 2000' was used as a software program. Five intersections representing different situations were selected as examples of analysis. It was also paired with sensibility analysis to grasp how priority might be changed by different weight. Through this result, it can be inferred that priority might change by manipulating field situation from other areas.

A Fuzzy Evaluation Method of Traveler's Path Choice in Transportation Network (퍼지평가방법을 이용한 교통노선 결정)

  • 이상훈;김덕영;김성환
    • Journal of Korean Society of Transportation
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    • v.20 no.1
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    • pp.65-76
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    • 2002
  • This study is realized using fuzzy evaluation and AHP(the analytic hierarchy process) for the optimum search of traffic route and estimated by the quantitative analysis in the vague subjective judgement. It is different from classical route search and noticed thinking method of human. Appraisal element, weight, appraisal value of route is extracted from basic of the opinion gathering fur the driving expert and example of route model was used for the finding of practice utility. Model assessment was performed attribute membership function making of estimate element, estimate value setting, weight define by the AHP, non additive presentation of weight according to $\lambda$-fuzzy measure, Choquet fuzzy integral.

Optimal Deployment for Evacuation Safety Zone at Intermodal Transfer Station (복합환승센터 피난대피구역 적정 배치 방법론 개발)

  • You, So-Young;Jeong, Eunbi
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.18 no.1
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    • pp.27-42
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    • 2019
  • It is not easy to evacuate when people face with emergency situation in deep underground space because space perception and synthetic judgement are readily lowered. In stead of evacuating safely outside within the given time, evacuation safety zone is required to be designed and installed. In this study, PATS (Pedestrian movement based Assessment Toolkit for Simulation) is applied to build a comprehensive and analytic framework for seeking the optimal (or proper) numbers and locations of evacuation safety zone. With two scenarios of emergency situation at intermodal transfer center with the 6 floor in underground, the problematic location on the evacuation path has been identified and the proper locations has been presented.

An Empirical Study on Evaluation for Administrative Service Quality of Public Institution : Focused on District Offices in Seoul (공공기관의 행정서비스품질 평가에 관한 실증적 연구 : 서울시 구청 중심으로)

  • Park, Kyung-Ho;Lee, Kang-In
    • Journal of the Korea Society of Computer and Information
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    • v.14 no.9
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    • pp.167-177
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    • 2009
  • As the service quality has been reconsidered in public sector as well as private enterprises, the need for public sectors to adopt principle and practices of private sectors is concerned with customer-focused approach, the different business culture of public service organizations makes it difficult to improve service qualify. Also, Since concept of service contains intangibility, heterogeneity, Simultaneousness and perishability, it makes peoples more difficult to measure service quality. Therefore, this study proposes synthetic Administrative Service duality Index(ASQI) using fuzzy set theory and analytic hierarchy process to evaluate the service qualify in subjective environment. In ASQI model, Fuzzy set theory helps to measure the ambiguity of concepts that are relative to human being's subjective judgement. Also, this study utilizes AHP method to evaluate the preference weights of service quality dimensions (tangibility, reliability, responsiveness, assurance, empathy) for customers.

A Study on the Precedence of the Risk of Problem Features of Senile Dementia Patients (치매노인의 문제특성에 대한 위험순위에 관한 연구)

  • You, Ji-Hye;Lee, Hang-Woon;Eom, Jin-Sup;Park, Soo-Jun;Lee, Bong-Soo;Lee, Jeong-Whan;Tack, Gye-Rae;Chung, Soon-Cheol
    • Science of Emotion and Sensibility
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    • v.10 no.1
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    • pp.79-86
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    • 2007
  • Selected cognitive ability test and survey of basic & problem characteristics were conducted on 110 hospitalized senile dementia patients to extract important problem features. Twenty important problem features were extracted by the factor analysis. In this study, the precedence of the risk of 20 problem features was determined for care of senile dementia patients. Questionnaire was conducted on 32 clinical psychologists who had experienced the diagnosis and treatment of senile dementia patients. Using AHP (Analytic Hierarchy Process), relative risk levels were studied and the precedence of risk was determined by making 20 important problem features in order of the risk. Results of two analyses indicated that during normal daily activities of senile dementia patients the cognitive problem such as memory impairment, judgement disorder and disorientation is the most dangerous risk factor.

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A Study on the Entrepreneurship Curriculum Development Model to Systemize Entrepreneurship Education in Entrepreneurial Graduate School (AHP를 활용한 창업대학원 교과목 선호도 평가요인별 중요도에 관한 연구: 창업대학원 재학생을 대상으로)

  • Lee, Il han;Kim, Hyun sook
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.11 no.6
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    • pp.131-142
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    • 2016
  • Since global circumstances have become competitive, entrepreneurship has been regarded as the most important factors in economic revitalization not only in korea but also internationally. According to these changes, public entrepreneurship education has been started from the year of 2004 establishing Entrepreneurial Graduate School as a part of governmental plan. Although entrepreneurship education history is not long enough in korea, but the need for entrepreneurship education in social is now going ahead of the public education systems such as universities and graduate schools. Therefore, this study is conducted for the purpose of drawing the subject frame for systematized integration curriculum of entrepreneurship education through evaluating the importance of the subjects by Analytic Hierarchy Process analysis after being composed of 6 modularity in the Entrepreneurship subjects. This was structured based on studying the current status for entrepreneurship education in domestic universities and graduate schools. The research findings under the condition of Judgement consistency ratio 0.1 are as follows. The most important factors are in order as following; "Entrepreneurial Issues for Fund"(.242), "Entrepreneurship Plan"(.195), "Entrepreneurship & Entrepreneurship mindset"(.161), "Entrepreneurial Issues for Growth & Development"(.160), "Management Skill & Strategy"(.150), and "Special Entrepreneurship"(.093). Then, these findings also represent subfactors as well. The results of this study provide the practical guidelines where the curriculums needed for the entrepreneurship education at graduate schools by suggesting consistency for the systematic and comprehensive curriculum design. It was reflected the survey result from the graduate students taking the entrepreneurship subjects. Therefore, it will contribute the foundation of the present curriculum of Entrepreneurial Graduate School.

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