• 제목/요약/키워드: Relative importance index

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A Probabilistic Fuzzy Logic Approach to Identify Productivity Factors in Indian Construction Projects

  • Princy, J. Darwin;Shanmugapriya, S.
    • Journal of Construction Engineering and Project Management
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    • 제7권3호
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    • pp.39-55
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    • 2017
  • Preeminent performance of construction industry are unattainable with poor productivity resulting in time and cost over runs. Enhancement in productivity cannot be achieved without identifying and analyzing factors that adversely affect productivity. The objective therefore is to propose a productivity analysis model to quantify the probability of effect of factors influencing productivity by using fuzzy logic incorporated with relative importance index method, for various types of construction projects. To achieve this objective, a questionnaire survey was carried out targeting respondents of Indian construction industry, from four distinct projects, namely, residential, commercial, infrastructure and industrial projects. Based on questionnaire administered, the relative importance and ranks of factors demonstrated using relative importance index method. Probability assessment model to analyze productivity was then developed by using Fuzzy Logic Toolbox of MATLAB. The applicability of the proposed model was tested in seven construction projects and the probability of impact of factors on productivity evaluated. The results of application of model in the construction firms infers that the most contributing factor groups for most of the projects were discerned to be manpower, motivation and time group.

도시 비오톱의 자연체험 가치 평가모형의 개발과 적용 (Development and Application of an Evaluation Model for Urban Biotope Appraisal)

  • 나정화;류연수
    • 한국조경학회지
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    • 제30권3호
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    • pp.1-11
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    • 2002
  • The purpose of this study is to construct an evaluation criteria based on the relative importance and various combinations of each evaluation index and then to appraise urban biotope in terms of nature experience and recreation. After the standard of evaluation had been developed through the review of existing literature, the relative importance of the evaluation index through expert survey was determined, and the evaluation model to assess biotope value was established. The results of this study are as follows; 1) We have constructed the seventeen evaluation criteria through literature reviews, and have provided relative importance to each evaluation index of the natural in biotope, the diversity of landscape patterns, the appearance-existence of water space, the special landscape elements, and the access based on the results of expert survey. and then we have constructed an evaluation system using the relative importance criteria. 2) To evaluate urban biotope using the evaluation system constructed, we selected 14 sites. The final evaluation results of each site is as follows; The first grade areas are the water space with semi-natural style in front of Gangchon Woobang apartments, the forest zone near Page Temple at Mt. Palgong, the edge area of Jisan and Gosan and the tendril yard against Anshim middle school. The second grade areas are Hyomyung elementary school, the farm land behind the third Anshim Jugong apartment, Ehyun put and the swampy land in front of the Kangchon and Anshim construction site. The third grade areas are Seohan and Hwasung high-rise apartments at Beummul-Dong, the Korea Manpower Agency in the Sungseo industrial zone, and the adjacent area of St. Tongil. The only fourth grade area is the commercial zone near Taegu Department Store. 3) It is highly useful to evaluate urban biotope using the evaluation criteria constructed for this research, the evaluation criteria we developed may be difficult to encompass all expert opinion and the period of space-formation is difficult to estimate urban biotopes. In the future, it is necessary to gather the basic data suitable to estimate biotope and it is necessary to develop detailed evaluation criteria applicable to estimate every biotope that has specific property.

평가지표에 의한 도시 비오톱의 가치평가 -생물종과 서식처 보전을 중심으로- (An Evaluation of Biotope Based on Its Valuation Criteria in Terms of Conservation of Species and Habitat)

  • 나정화;류연수;사공정희
    • 한국조경학회지
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    • 제29권1호
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    • pp.100-112
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    • 2001
  • The purpose of this study is to construct the evaluation criteria based on the relative importance and various combination of each evaluation index and then to evaluate urban biotope in terms of conservation of species and habitat. After the standard of evaluation had been developed through the literature review, the relative importance of the evaluation index through expert survey was found out, and the evaluation model of biotope value has been established. The results of this study are as follows; 1) We have constructed the nineteen evaluation criteria through literature reviews, and have provided relative importance to each evaluation index of the diversity of typical species in biotope, afforestation rate, stratification, Hemeroby grads, and the diversity of landscape patterns based on the results of expert survey. and then we have constructed the evaluation system using the relative importance criteria. 2) To evluate urban biotope using the evaluation system constructed, we selected 14 sites. The final evaluation results of each site is as follows; The III grade areas are Seohan and Hwasung high-rise apartment at Beummul-Dong, Korea Men Power /Agency in Sungs 대 industrial zone, the adjacent area of St. Tongil, and Hyomyung elementary school. The II grade areas are the farm land behind the third Anshim Jugong apartment, and Ehyun park. The I grade areas are swampy land in front of Kangchon and Anshim construction site, water space with semi-natural style in front of Gangchon Woobang apartment, forest zone near page Temple at mt. Palgong, the edge area of Jisan and Gosan, and the tendril yard against Anshim middle school. The only grade IV area is the commercial zone near Taegu Department 3) It is highly useful to evaluate urban biotope using the evaluation criteria constructed for this research, the evaluation criteria we developed may be difficult to guarantee the ability for reproduction and recovery, the appearance-number of the rare and endangered species are difficult to estimate urban biotopes. In the future, it is highly useful to evaluate biotope in terms of conservation of species and habitat through its valuation criteria developed in this research and it is necessary to develop the evaluation criteria applicable to estimation of biotope inventory and reproduction of biotope.

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낙동강 수계 대가천의 꼬치동자개 Pseudobagrus brevicorpus (Pisces: Bagridae)의 일주기 활동 및 식성 (Diel Activity and Feeding Habitat of Pseudobagrus brevicorpus (Pisces: Bagridae) in the Daegacheon Stream of Nakdonggang River, Korea)

  • 곽영호;김강래;방인철
    • 한국어류학회지
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    • 제31권1호
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    • pp.54-61
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    • 2019
  • 꼬치동자개 Pseudobagrus brevicorpus의 일주기활동과 식성에 관한 연구를 낙동강 지류인 대가천에서 실시하였다. 일주기 활동은 일몰 직후와 일출 전에 2회에 걸쳐 일어났다. 주로 하천의 중층대에서 활동을 하며 먹이생물이 발견하면 접근하여 흡입하는 행동을 취했다. 연령은 3개 그룹으로 구분되었고 위내용물 중 상대중요성지수 (index of relative importance, IRI)가 1%를 초과하는 먹이생물은 하루살이목 (Ephemeroptera) 80.8%, 파리목 (Diptera) 8.6%, 날도래목 (Trichoptera) 8.5% 순으로 나타났다. 또한 모든 연령군에서 하루살이목이 매우 중요한 먹이생물이었고, 성장함에 따라 먹이생물의 크기가 증가하였다.

DDC 색인에 대한 연구 (A Study on the DDC Index)

  • 남태우
    • 한국도서관정보학회지
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    • 제41권3호
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    • pp.155-183
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    • 2010
  • 도서색인은 일종의 위치탐색 장치체계로서, 일반적으로 텍스트에 나오는 용어의 집합과 텍스트 속에서 그 용어가 출현하는 위치를 연결해 주는 역할만 한다. 반면에 DDC 상관색인의 용어는 페이지 수를 지시하기 보다는 분류번호나 혹은 본표에서 발견될 수 있는 이에 상응하는 범주어들을 가리킨다. DDC 색인은 DDC의 탄생 이상으로 그 중요성이 높다. 그래서 연구의 목적은 DDC 색인을 연구하는데 두었다. 상관색인은 본표나 보조표와는 정반대로 '표목 + 관점 + 분류기호'로 구성되어 있다. DDC에서 최초로 응용한 상관색인의 특성을 분석하여 그 기능을 종합하였으며, 또한 DDC 상관색인의 구조적 특성을 분석하였다.

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AHP를 이용한 외식프랜차이즈 가맹본부의 지원서비스의 중요도 및 경쟁력 분석 (Analysis on the Importance and Competitiveness of Support Services of the Food Service Franchise Headquarters AHP Technique)

  • 최채봉;이상석
    • 한국프랜차이즈경영연구
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    • 제10권4호
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    • pp.7-18
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    • 2019
  • Purpose: This study identifies the relative importance of the sub - factors of initial services and continuous services using AHP (Analytic Hierarchy Process) method, and calculates the competitive index for the detailed factors. The purpose of this paper is to propose the establishment of long - term and short - term management strategy for expansion of business of food service franchise, franchisors, long - term and win - win relationship with franchisees, and rationalization of operating system. Research design, data, and methodology: The population for the survey is 92 franchisees in 46 foreign brands and 46 domestic brands in the Seoul metropolitan area (Seoul / Gyeonggi / Incheon). The survey was conducted from July 1 to August 31, 2018 through the survey agency with a telephone interview and a surveyor's direct visit. A total of 100 questionnaires were collected, but a total of 92 parts were used for analysis except 8 parts that were considered to contain false information. Using the AHP method, relative importance and competitiveness index were calculated for the details of initial services and continuous services. Results: The results shows continuous services were significantly higher for both foreign brand franchises, domestic brand franchises, and overall than initial services, This suggests that the continuous services of the affiliated franchisors has a higher relative importance than the initial services. Among the continuous services, brand reinforcement and promotion were significantly higher for both foreign brand merchants and domestic brand franchises. This can be regarded as the most important factor in brand reinforcement and promotion when selecting a food service franchisors. Conclusions: In the Standard Terms and Conditions governed by the Fair Trade Commission, the franchisors should increase the fairness by creating manuals for supporting services, especially after opening, and regularly checking whether the supporting services have been carried out like manuals since the establishment of franchisees. In addition, the Brand Strengthening and Public Relations Committee (tentative name) jointly participated by the franchisors and franchisees for the purpose of strengthening and promoting the brand, suggesting a system for transparent and efficient execution of the brand reinforcement and promotion budget and monitoring afterwards.

공공보건의료체계 발전 방안에 대한 상대적 중요도 분석 (Analyzing the Relative Importance for the Development Plan of the Public Health Care System)

  • 김유호
    • Journal of health informatics and statistics
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    • 제43권4호
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    • pp.300-306
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    • 2018
  • Objectives: The purpose of this study is to demonstrate empirically through a specialist AHP analysis what factors should be more important in the development of the public health care system. In addition, we will use Analytic Hierarchy Process (AHP) method for experts to achieve research purpose. Methods: The data analysis method of this study is as follows. First, we set up three metrics in order to measure the relative importance between the factors to be improved for the development of the public health care system and each of the sub-factors. A total of nine measurements (items) were set by combining the three measurement criteria for each measurement index. Second, the relative importance and priority analysis use the AHP analysis. Third, the subjects of this study were 15 experts in the field of public health care. The statistical processing was performed using the Expert Choice 2000 statistical program. Results: In order to development of the public health care system, experts ranked the most important as improvement in the systematic aspect of public health care (56%) as the first priority. Next, the relative importance analysis of the measurement items considering the multiple-weights of the sub-factors is as follows. The strengthen institutional improvement (revitalization of secondary public function hospital) was the number one, strengthen cooperation between agencies was the second, and Re-establishing the role of local public health care system was the third place. Conclusions: Considering the relative importance, factors that are considered to be important in the first place may not be improved as the best policy alternative due to limitations in spatial, temporal, financial, and institutional aspects. In this case, we suggest that we should choose the best policy alternative by using prioritization considering relative weights.

AHP 분석을 이용한 사물주소 부여대상의 상대적 중요도에 대한 전문가와 일반인의 인식 비교분석 (Public and Experts Perception Analysis about Relative Importance of Address of Things Using AHP)

  • 조수지;배성훈;김민관;이기광
    • 산업경영시스템학회지
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    • 제44권1호
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    • pp.71-78
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    • 2021
  • Recently the meaning of the road name address is expended as an information through the revision of the Road Name Address Act. As this revision, the address of things (AoT) become more important indicating the possibility for the expansion to the related business. However, recent study about AoT does not concern how the current priority system works from the first research. In this study, we analyze perception about addressable object between AoT experts and public using AHP analysis. We structured the importance of addressable objects as two categories; urgency and value creation. The necessity in emergency or daily, accessibility and welfare conform the urgency index. Meanwhile, public value creation in public domain or profitability in the business area and economics conform value creation index. We conducted survey for total of 89 of experts and public. The results of this study indicate the relative importance of AoT measured by experts and public. Generally, public tend to concern more about accessibility conforming the urgency index than experts. Moreover, the public WiFi and the sports complex scored the high priority among the remain addressable objects, in respect of the urgency and the value creation. This result could be implemented for the activation of the smart city industry base on the geospatial information including AoT.

원자력발전소 운영 관련 연구개발 우선 순위 설정 모형 (R&D Priority Model for Nuclear Power Utility Company)

  • 신영균;장한수;최기련;강병국;김용진;권종주
    • 에너지공학
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    • 제11권4호
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    • pp.359-369
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    • 2002
  • 원자력발전소는 여러 공학 분야의 기술이 결집된 거대 시스템이므로 연구개발의 우선 순위를 설정하는 기준을 정립하기가 간단하지 않고 설정 기준의 상대적 중요도에 대한 이해당사자간의 공감대가 부족하다. 본 연구는 이러한 배경에서 원전의 운영 관련 기술 체계를 정립하고 각 기술의 중요도 평가 기준을 설정하고 이 평가 기준들 간의 상대적 중요도를 파악하여 최종적으로는 각 기술의 상대적 중요도를 평가하였다. 연구 과정에서 기존의 연구기획 관련 문헌을 모두 조사하여 기술체계를 마련하고 계층화 분석법을 적용하여 기술간의 상대적 중요도를 결정하였으며 일관성지수와 현장인터뷰 결과를 활용하여 연구 결과의 검증을 시도하였다.

경동맥 혈류유동에서의 혈액의 비뉴우토니안 특성의 상대적 중요성 해석 (THE RELATIVE IMPORTANCE OF NON-NEWTONIAN CHARACTERISTICS OF BLOOD IN THE HEMODYNAMICS OF THE CAROTID BIFURCATION)

  • 이상욱
    • 한국전산유체공학회:학술대회논문집
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    • 한국전산유체공학회 2008년도 학술대회
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    • pp.181-185
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    • 2008
  • In this study, we attempted to quantify the relative importance of assumptions regarding blood rheology. Three patient-specific carotid bifurcation geometries and time-varying flow rates were obtained using magnetic resonance imaging. For each subject, CFD simulations were carried out assuming two different non-Newtonian rheology models Carreau and Ballyk models) and rescaled Newtonian viscosities based on characteristic shear rates to account for the shear-thinning property of blood. The sensitivity of WSS and oscillatory shear index (OSI) were contextualized with respect to the reproducibility of the reconstructed geometry and to assumptions regarding the inlet boundary conditions. We conclude that the assumption of Newtonian fluid is reasonable for studies aimed at quantifying the distribution of WSS-based extrema in an image-based CFD model of carotid bifurcation.

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