• 제목/요약/키워드: Stepping Stone

검색결과 169건 처리시간 0.025초

정규화 및 통합 방법이 순위의 변동성과 순위 역전에 미치는 영향 (Effects of Normalization and Aggregation Methods on the Volatility of Rankings and Rank Reversals)

  • 박영선
    • 품질경영학회지
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    • 제41권4호
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    • pp.709-724
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    • 2013
  • Purpose: The purpose of this study is to examine five evaluation models constructed by different normalization and aggregation methods in terms of the volatility of rankings and rank reversals. We also explore how the volatility of rankings of the five models changes and how often the rank reversals occur when the outliers are removed. Methods: We used data published in the Complete University Guide 2014. Two universities with missing values were excluded from the data. The university rankings were derived by using the five models, and then each model's volatility of rankings was measured. The box-plot was used to detect outliers. Results: Model 1 has the lowest volatility among the five models whether or not the outliers are included. Model 5 has the lowest number of rank reversals. Model 3, which has been used by many institutions, appears to be in the middle among the five in terms of the volatility and the rank reversals. Conclusion: The university rankings vary from one evaluation model to another depending on what normalization and aggregation methods are used. No single model exhibits clear superiority over others in both the volatility and the rank reversal. The findings of this study are expected to provide a stepping stone toward a superior model which is both reliable and robust.

전통한국건축과 서구건축의 유기성에 관한 비교연구 (A Comparative Study on the organic Traits of Korea Traditional Architecture and Occidental Architecture)

  • 권영걸
    • 한국실내디자인학회논문집
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    • 제14호
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    • pp.130-136
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    • 1998
  • The stepping stone of the study is provided through understanding the transformation of the cultural value with the paradigm shift at the turning point of late 20th century and examining the cultural relationaship between the East and the West. By researching the oriental and occidental culture in terms of the origin formation relation and differences which should be divided into broad branches that is natural ideological formative and spatial aspects and so forth. This paper makes it possible to understand the fundamental differences and relativities between two divergent cultures by way of analyzing the architecture in plastic and cognitive aspects to residential space. this study intends to elucidate common traits of korean traditional architecture and that of the Occident and the discrepancies of their attitudes toward nature and space. In Western civilization they used to consider architecture as a physical organization while the oriental people consider it a object what is so of itself. The former concentrated on the functional rationality of scientific technology with the uncontextual propensity which does not consider natural environment the latter could reach the naturalness more harmonious to environment. What counts in the upcoming age of coexistence of Globalism that emphasizes the worlds universality and Nationalism that sticks to local cultural characteristics is to establish the new value system and identity based upon natural order and organic quality. As a result we could recognize the organic quality as a cosmic order could be a valid means to achieve the globalization of our culture through the compatibility between gap and common ground of both cultural sphere.

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공간구문론을 이용한 종합병원 수직동선체계 연구 (A Study of Vertical Circulation System in General Hospitals by Using Space Syntax)

  • 이현진;박재승
    • 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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    • 제19권4호
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    • pp.47-60
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    • 2013
  • Purpose: This study examines construction core plans for the users of vertical-typed general hospitals to effectivly use the flow line. Methods: The study sampled representative 9 hospitals, calculated the depth value through Convex Map of Space Syntax and Justified Graph according to the determination of form of construction cire, and analyzed its functional connectivity. Results: The analysis of the connectivity between operation core part and emergency part of core space with high importance in the hospitals showed that the types of hospital and hospital have the lowest depth value in the spatial phase diagram, where central treatment part and outpatient part are arranged well vertically. Elevators for patients at these hospitals are close to operation and emergency parts actually separated from the elevators for passengers. For shortening of flow line of patients and private movement environment, however, it is desirable to arrange the elevators for patients to be adjacent to the operation parts and to arrange the emergent patient entrances more effectively to separate them from the flow line of visitors and guardians. Implications: Consideration should be taken into account for the effective flow line design. This study hopefully may serve as a stepping stone for the standard design of horizontal/vertical flow line.

Deep Learning Object Detection to Clearly Differentiate Between Pedestrians and Motorcycles in Tunnel Environment Using YOLOv3 and Kernelized Correlation Filters

  • Mun, Sungchul;Nguyen, Manh Dung;Kweon, Seokkyu;Bae, Young Hoon
    • 방송공학회논문지
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    • 제24권7호
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    • pp.1266-1275
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    • 2019
  • With increasing criminal rates and number of CCTVs, much attention has been paid to intelligent surveillance system on the horizon. Object detection and tracking algorithms have been developed to reduce false alarms and accurately help security agents immediately response to undesirable changes in video clips such as crimes and accidents. Many studies have proposed a variety of algorithms to improve accuracy of detecting and tracking objects outside tunnels. The proposed methods might not work well in a tunnel because of low illuminance significantly susceptible to tail and warning lights of driving vehicles. The detection performance has rarely been tested against the tunnel environment. This study investigated a feasibility of object detection and tracking in an actual tunnel environment by utilizing YOLOv3 and Kernelized Correlation Filter. We tested 40 actual video clips to differentiate pedestrians and motorcycles to evaluate the performance of our algorithm. The experimental results showed significant difference in detection between pedestrians and motorcycles without false positive rates. Our findings are expected to provide a stepping stone of developing efficient detection algorithms suitable for tunnel environment and encouraging other researchers to glean reliable tracking data for smarter and safer City.

다인종.다문화 시대와 경찰활동 변화의 모색 (Searching for Change of Policing in Multicultural and Multiethnic Age)

  • 이효민
    • 한국콘텐츠학회논문지
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    • 제7권9호
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    • pp.148-155
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    • 2007
  • 21세기 세계화 정보화 시대를 맞이하여 국가간의 물적 교류뿐만 아니라 인적 왕래와 자본의 흐름, 정보의 전달이 활발하게 이루어지고 있다. 이런 국가간의 활발한 교류를 통하여 세계는 하나의 지구촌화되어가고 있음은 자명한 사실이다. 국내에 체류하고 있는 외국인의 수는 점차 증가하고 있으며, 합법적인 국적취득을 비롯하여, 불법체류, 밀입국 등을 통해 많은 외국인들이 국내에 체류하고 있는 실정이다. 그러나 이러한 현실에 비추어 우리의 경찰활동은 외국인을 상대하기 위한 교육훈련 및 실무에 필요한 준비가 매우 미흡하다고 할 수 있다. 따라서 본 연구에서는 외국인을 위해 변화되어야 할 경찰활동에 대해서 검토해 보고자 한다.

석유화학 플랜트 프로젝트 상세설계 실패사례활용방안에 대한 연구 (Utilization of Failure Examples in Detail Design for Oil and Petrochemical Plant Project)

  • 강태영;문승재;유호선
    • 플랜트 저널
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    • 제5권2호
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    • pp.62-67
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    • 2009
  • The capability of design and engineering of global EPC companies has long been equalized through past similar construction experiences. Among various key factors in the success of EPC project, the capability of engineering is considered to be the most important factor since the engineering is preceding activities of EPC contract. The failure of engineering may adversely affect the subsequent procurement & construction activities and in turn may cause cost overrun or schedule delay. Therefore, an EPC company needs to continue to improve the engineering capabilities for the success of project. The engineering capabilities can be further improved if the EPC company should prevent recurrence of similar design faults that were previously committed. This study is intended to present how to make the most of the failure examples from previous projects towards a success of project. Failure is but a stepping stone to success. The EPC company can obtain useful lessons from the analysis of past failure examples.

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영암사지(靈巖寺址) 금당의 목조 가구구조(架構構造) 복원에 관한 연구 (A Research on the Reconstruction of Wooden Frame Structure of Kumdang in Yongamsaji)

  • 윤재신
    • 건축역사연구
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    • 제19권5호
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    • pp.25-47
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    • 2010
  • The purpose of this study is to reconstruct the wooden frame structure of Buddhist temple, Kumdang in Youngamsaji which assumed to be built in the 9th century of Unified Silla Dynasty. The remaining site of Kumdang in Youngamsaji is investigated thoroughly with a particular attention to bay size and column distribution. The five ancient Buddhist temples which were built in the same period also have the same frame type as Youngamsaji Kumdang. These five ancient Buddhist temples and Kumdang in Youngamsaji are meticulously investigated in terms of their bay sizes and measuring modules. The framework schema is devised as a conceptual tool to conjecture wooden frame structures of Buddhist temple. A theoretical differentiation between frame type and frame structure is attempted to formulated a wooden frame structure as a stepping-stone for the reconstruction of traditional wooden building. The wooden frame structure of 9C Kumdang in Youngamsaji mainly follows the oldest Korean wooden pavilion, Muryangsujeon in Busuk temple, with a hip and gable roof. The wooden frame structure of 9C Kumdang in Youngamsaji is reconstructed through 3D computer modeling to such an extent that every wooden components of the structure can be 3D printed. The reconstruction also takes reference from the Cai-Fen system in Yingzao Fashi.

가상세계에서의 건강증진교육의 개념분석 (Health Promotion Education In A Virtual World: A Concept Analysis)

  • ;오진아
    • 한국간호교육학회지
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    • 제18권1호
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    • pp.81-94
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    • 2012
  • Purpose: Virtual worlds are emerging in health care as an innovative way of helping clients take responsibility for and promote their own care. Yet, the concept of health promotion education in this environment has not been elucidated. Therefore, we undertook a concept analysis to discover the underlying attributes and contextual basis to generate a conceptual understanding of virtual worlds in the context of health promotion education. Methods: Using Rodgers' evolutionary view of concept development, we analyzed literature on virtual worlds that describe their use to discover critical attributes, antecedents, and consequences of this phenomenon. Eleven studies matching inclusion criteria were reviewed. Results: Analysis of the literature highlighted three areas of important domains: user, simulated environment, and education. This concept analysis extends our understanding of a virtual world for health promotion education. Conclusion: This study may help anticipate future trends in the use of virtual worlds in the context of health promotion education, serving as a stepping-stone for further research on this aspect of the study. The next step should focus on the development of an evaluation tool that can measure the factors identified in this analysis to determine their effects on outcomes and environmental interactions.

기혼여성 시간제일자리의 상태의존성(state dependence) 변화 (Part-time Jobs of Korean Married Women -The recent change in their state dependence-)

  • 정민수
    • 노동경제논집
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    • 제41권3호
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    • pp.95-128
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    • 2018
  • 본 연구는 우리나라 기혼여성들의 시간제, 전일제 등 근로형태가 오래 지속되는지 아니면 근로형태간 이동이 활발한지를 상태의존성(state dependence) 추정을 통하여 살펴보고, 최근의 변화를 분석하였다. 동태적 다항로짓모형(dynamic multinomial logit model) 추정결과 시간제와 전일제 상호간 이동성이 최근 낮아지면서 각 근로형태의 상태의존성은 강화되는 모습을 보였다. 따라서 시간제일자리는 전일제와 미취업 사이에서 근로형태간 이동을 활발하게 하는 디딤돌 또는 쉼터의 역할이 약화되고 전일제 외에 노동시장 참여 옵션을 제공하는, 전일제와는 구분된 추가적 일자리형태로 기능하고 있는 것으로 판단된다.

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정의의 '정의'를 어떻게 가르칠 것인가? (How can we teach the 'definition' of definitions?)

  • 이지현
    • 한국학교수학회논문집
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    • 제16권4호
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    • pp.821-840
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    • 2013
  • 중학교 기하에서 등장하는 도형의 정의는 그 모양에서 시각적으로 확인할 수 있는 단순한 용어의 뜻으로만 생각하기 쉽다. 그러나 도형의 정의에 대한 낮은 이해도는 이와 같은 도형 정의에 대한 도구적 이해의 한계를 보여주고 있다. 이 연구는 영재중학생들을 대상으로, Freudenthal이 주장했던 도형 성질의 논리적 조직화에 의한 정의의 재발명과정을 구체적으로 실행하여 분석하였다. 그 결과 영재 학생 중 상당수가 도형 성질의 논리적 조직화 경험을 통하여, 도형을 왜 그렇게 정의하는 것인가, 또 다른 성질로는 정의할 수 없는가와 같은 도형 정의의 관계적 이해와 관련된 질문에 대해 깊이 이해하고 있음을 확인할 수 있었다. 이 연구에서 분석한 논리적 조직화에 의한 정의의 재발명과정은 중학교 기하교육의 문제를 반성하고 새로운 대안을 모색하는데 도움이 될 수 있을 것이다.

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