• 제목/요약/키워드: Evaluation approaches

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로봇활용교육의 효과성 검증을 위한 평가도구 개발 : 사회·문화적 맥락 및 컴퓨팅 사고 연계 (Development of a Holistic Measure of Learning Effects in Robotics Program: Connecting Sociocultural Context and Computational Thinking)

  • 최형신
    • 정보교육학회논문지
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    • 제18권4호
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    • pp.541-548
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    • 2014
  • 본 연구의 목적은 초등 교육현장에서 활용되는 로봇수업에서 학생들이 배양할 수 있는 역량으로 컴퓨팅 사고(Computational Thinking) 능력에 초점을 맞추고 이를 평가할 수 있는 평가 방안을 제안하는 것이다. 또한 지금까지 로봇수업의 평가로 개인 역량에만 치중하였던 것을 사회문화적 관점에서 조명하여 대인관계적 역량 및 협력의 경험을 평가할 수 있는 방안을 제안하였다. 이를 위해 초등학교 5학년 로봇수업에서 한 학기 동안 운영할 수 있는 프로그램을 고안하고 컴퓨팅 사고 능력 평가 설문 및 학습과정 모니터링 루브릭을 개발하여 평가를 실시하였다. 본 연구의 결과는 최근 이론적으로 주목받고 있고 컴퓨팅 사고 개념을 로봇교육과 연계한 평가 방안을 고안하고 사회문화적 관점인 대인간의 관계를 평가에 포함시킴으로써 그 범위를 확장하였다는 점에서 의의가 있다.

경관평가연구의 국내외 동향 (Domestic and Foreign Trends in the Study of the Landscape Evaluation)

  • 주신하;임승빈
    • 한국조경학회지
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    • 제28권2호
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    • pp.49-60
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    • 2000
  • The purpose of this study is to overview domestic and foreign trends in the study of the landscape evaluation through new framework of landscape evaluation studies. 108 studies on the landscape evaluation are summarized and categorized into theoretical studies, verification of theories, development of evaluation methods and applications in physical planning. Major theories in the landscape evaluation came from the psycho-physics, the evolutionary theory ann the cultural-learning theory, and were verified and applied into physical planning. Early experimental researches on landscape evaluation, based on psycho-physics, were focused on relatively simple responses to landscapes. But many studies have been gradually related to the evolutionary theory and the cultural learning theory, emphasizing biological and cultural effects on landscape evaluation. Especially, Appleton's Prospect-Refuge theory' and Kaplans' 'Information Processing model' have very strong influence in landscape evaluation. Relatively there have been many application researches in Korea, which tells there have been strong needs to solve pending practical problems caused by the rapid economic and social growth for several decades. Almost of applications in physical planning are focused on physical features of landscapes, but for more comprehensive landscape evaluation, many other factors such as cognitive and sociocultural variables should be integrated into the whole evaluation system. As a result of reviewing of landscape evaluation studies, I found the overall domestic and foreign trends and the necessity of more research on the applications in physical planning. Because this study mainly focused on academic researches, for more appropriate landscape evaluation and management there should be more practical researches including various approaches.

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정신과에 의뢰된 내과계 환자들에 대한 치료적 접근 -환자에 대한 평가와 이해 - (Therapeutic Approaches to the Patients Who Were Referred for Psychiatric Consultation from Medical Departments - Focused on Evaluation and Understanding -)

  • 이정호;이기철
    • 정신신체의학
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    • 제1권1호
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    • pp.75-80
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    • 1993
  • To understand and evaluate the patients who were referred for psychiatric consultation from medical departments, the authors reviewed the concept of disease, psychological reaction to disease, problems on psychiatric diagnosis and evaluation which were encountered at the medical ward. In addition, we reviewed what psychiatrists should do during consultation.

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SOME OUTSTANDING PROBLEMS IN NEUTRON TRANSPORT COMPUTATION

  • Cho, Nam-Zin;Chang, Jong-Hwa
    • Nuclear Engineering and Technology
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    • 제41권4호
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    • pp.381-390
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    • 2009
  • This article provides selects of outstanding problems in computational neutron transport, with some suggested approaches thereto, as follows: i) ray effect in discrete ordinates method, ii) diffusion synthetic acceleration in strongly heterogeneous problems, iii) method of characteristics extension to three-dimensional geometry, iv) fission source and $k_{eff}$ convergence in Monte Carlo, v) depletion in Monte Carlo, vi) nuclear data evaluation, and vii) uncertainty estimation, including covariance data.

AHP 기법을 이용한 시설 원예의 적지평가모델 개발 (Development of the Evaluation Model of Location Suitability for Protected Horiculture by AHP Method)

  • 황한철
    • 한국농공학회지
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    • 제41권3호
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    • pp.51-58
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    • 1999
  • It is necessary to evaluate the location suitability of protected horticulutre facilities to guide and/or plan new protected horticulture facilities in rural areas. In this study, as one of methodological approaches for objective and systematic evaluation of location suitability for protected horiculture, the evaluation model of location sutitability for protected horticulture was formulated using AHP (Analytic Hierarchy Process) as a base technique. The evaluation model was made in three different selected regions ; suburban, plain, and mountainous, The results showed that there were significant differences in evaluation model of location suitability for protected horticulture among three regions.

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학교평가 정책: 한국과 스웨덴의 비교 (Education Policy of School Evaluation: A Comparative Case study in South Korea and Sweden)

  • 정지원
    • 비교교육연구
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    • 제23권5호
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    • pp.19-52
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    • 2013
  • 이 논문은 한국과 스웨덴의 학교평가 시스템을 기술하고 학교 자체 및 외부 평가라는 두 영역에서 두 나라간 교육환경에 따른 평가정책의 양상을 상호 비교하고자 한다. '학교의 질 제고' 및 '교육 분권화'의 방향으로 세계 교육환경의 관심이 전환되면서, '교육 평가'의 중요성에 대한 인식 또한 증대되고 있다. '학교 평가'를 통해 기술되어지는 교육 기관들의 취약점을 보완하고, 이들이 가진 강점을 고양시켜 장기적 관점에서 학교 질제고에 기여할 수 있게 된다는 것이다. 연구문제는 한국과 스웨덴에서 시행되고 있는 학교평가의 양상이 두 나라의 교육환경에서 어느 정도 변용되어 시행되고 있는가 이며 연구내용은 '평가목표, 도구, 기준 및 결과 처리 방법'의 범위에서 학교자체평가를 '평가기관, 기준 및 결과처리 방법'의 영역에서 학교외부평가의 양상을 한국과 스웨덴으로 나누어 살펴보고 교육환경의 차이가 가져다준 학교평가의 유사점 및 상이점을 분석하는 것이다. 이를 위해 인터뷰 및 문서 자료 분석을 중심으로 한 질적 연구를 수행하였다. 연구결과에서는 교육 분권화가 정착단계에 있는 스웨덴과 과도기에 있는 한국의 학교평가 양상은 상당히 다른 모습을 보이고 있음을 각 범주별로 기술하고 논의하였다. 이에 교육정책의 양상은 각 나라의 교육환경과 밀접한 관련을 맺고 있으며 한국과 스웨덴 간 학교평가정책 운영의 우위를 논하기 보다는 분권화 정도에 따라 교육평가 정책이 효율적으로 운영되고 있는지를 논의하였고 앞으로 차용할 외국의 교육정책 또한 현 국가의 실태에 맞춰 변용할 필요가 있음을 언급하고 있다.

Interactive Information Retrieval: An Introduction

  • Borlund, Pia
    • Journal of Information Science Theory and Practice
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    • 제1권3호
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    • pp.12-32
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    • 2013
  • The paper introduces the research area of interactive information retrieval (IIR) from a historical point of view. Further, the focus here is on evaluation, because much research in IR deals with IR evaluation methodology due to the core research interest in IR performance, system interaction and satisfaction with retrieved information. In order to position IIR evaluation, the Cranfield model and the series of tests that led to the Cranfield model are outlined. Three iconic user-oriented studies and projects that all have contributed to how IIR is perceived and understood today are presented: The MEDLARS test, the Book House fiction retrieval system, and the OKAPI project. On this basis the call for alternative IIR evaluation approaches motivated by the three revolutions (the cognitive, the relevance, and the interactive revolutions) put forward by Robertson & Hancock-Beaulieu (1992) is presented. As a response to this call the 'IIR evaluation model' by Borlund (e.g., 2003a) is introduced. The objective of the IIR evaluation model is to facilitate IIR evaluation as close as possible to actual information searching and IR processes, though still in a relatively controlled evaluation environment, in which the test instrument of a simulated work task situation plays a central part.

혈액펌프내 혈액 변성 예측에 대한 Lagrangian 및 Eulerian 기법의 평가 (EVALUATION OF LAGRANGIAN AND EULERIAN APPROACHES FOR PREDICTION OF HEMOLYSIS IN BLOOD PUMPS)

  • 홍성민;손창근;강성원;허남건;김원정;강신형
    • 한국전산유체공학회지
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    • 제20권3호
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    • pp.79-86
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    • 2015
  • A blood pump is an important part of a cardiac assist device. Since the shear rate in blood is known to be a primary factor on hemolysis generation, it has been very important to evaluate hemolysis inside blood pumps for understanding performance and reliability of cardiac assist devices. In this study, hemolysis generation inside blood pumps is analyzed using CFD with power-law based models for the blood damage index(BDI), in order to overcome difficulties in measuring hemolysis by experiment. The BDI values in blood pumps can be evaluated using Lagrangian or Eulerian approaches. In this study, several Lagrangian and Eulerian approaches are compared to estimate the efficiency of the numerical methods in a practice sense. It is found that the Eulerian approaches are advantageous in terms of the efficiency and robustness. Two different Eulerian approaches are used to evaluate the BDI values of a few commercial blood pumps. For the conditions of extracorporeal membrane oxygenator(ECMO) and ventricular assist device(VAD), local generation of hemolysis is analyzed using divided regions of blood pumps, in order to investigate the effects of the pump geometry.

두 단계 수리계획 접근법에 의한 신용평점 모델 (Credit Score Modelling in A Two-Phase Mathematical Programming)

  • Sung Chang Sup;Lee Sung Wook
    • 한국경영과학회:학술대회논문집
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    • 대한산업공학회/한국경영과학회 2002년도 춘계공동학술대회
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    • pp.1044-1051
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    • 2002
  • This paper proposes a two-phase mathematical programming approach by considering classification gap to solve the proposed credit scoring problem so as to complement any theoretical shortcomings. Specifically, by using the linear programming (LP) approach, phase 1 is to make the associated decisions such as issuing grant of credit or denial of credit to applicants. or to seek any additional information before making the final decision. Phase 2 is to find a cut-off value, which minimizes any misclassification penalty (cost) to be incurred due to granting credit to 'bad' loan applicant or denying credit to 'good' loan applicant by using the mixed-integer programming (MIP) approach. This approach is expected to and appropriate classification scores and a cut-off value with respect to deviation and misclassification cost, respectively. Statistical discriminant analysis methods have been commonly considered to deal with classification problems for credit scoring. In recent years, much theoretical research has focused on the application of mathematical programming techniques to the discriminant problems. It has been reported that mathematical programming techniques could outperform statistical discriminant techniques in some applications, while mathematical programming techniques may suffer from some theoretical shortcomings. The performance of the proposed two-phase approach is evaluated in this paper with line data and loan applicants data, by comparing with three other approaches including Fisher's linear discriminant function, logistic regression and some other existing mathematical programming approaches, which are considered as the performance benchmarks. The evaluation results show that the proposed two-phase mathematical programming approach outperforms the aforementioned statistical approaches. In some cases, two-phase mathematical programming approach marginally outperforms both the statistical approaches and the other existing mathematical programming approaches.

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