• 아동학회지
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• 제21권3호
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• pp.53-68
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• 2000

This study investigated differences between the ability of children and young adults to describe their experience. Forty 5-year-olds and 40 16-year-olds viewed 12 pictures(Azmitia, 1987) and responded to open-ended, closed and misleading questions. Responses were categorized by the SPSS WIN program into rate of correctness, incorrectness, unresponsiveness and "don't know". Data were analyzed by t-test. On open-ended questions, the rate of incorrectness by young adults was higher than that of children. On closed questions, children had a higher rate of incorrectness than young adults. On misleading questions, children showed a lower performance in the rate of correctness and "don't know" and the rate of incorrectness by children was higher than that of young adults.

• Structural Engineering and Mechanics
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• 제28권6호
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• pp.767-770
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• 2008

• The International Journal of Costume Culture
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• 제6권2호
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• pp.117-125
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• 2003

Aesthetics of ugliness enlarged aesthetic field and brought back the repressed, estranged things. Hair style is not an exception. So I intended to examine the contemporary(1995-2002) women's hair styles on the basis of Rosenkranz' concept of ugliness. The results are as follows: First, extrinsic aspect contains formlessness and disfiguration. Among characteristics of formlessness, discord means appearing on a stage with a hair style derailed from our common sense or an incomplete hair style. Asymmetry means hair decoration or hair dressing which violates the principles of design. Disharmony means excessiveness beyond the concept of accent. Disfiguration has characteristics of vulgarity, disgust and caricature, and means cruelty, grimness or ridiculousness instead of pleasing beauty. Second, intrinsic aspect has incorrectness. As minority ethnic groups, estranged classes, children and women which in the previous field of absolute aesthetics were never considered as beauty appeared as subject matters of hair styles, the repressed things returned and a new genre was created thereby enlarging true aesthetic field. Like this, 1 cloud confirm that aesthetics of ugliness organized today's characteristic, peculiar hair styles, and enlarged aesthetic field.

• 기술혁신학회지
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• 제9권3호
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• pp.496-513
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• 2006

과학기술부는 국가 과학기술정보의 체계적인 수집, 분석 및 배포를 위해 국가차원에서 국가과학기술종합정보시스템(NTIS)을 구축하고 있다. 성공적인 NTIS의 추진을 위해서는 다양한 정보를 체계적으로 분류하고 유통시킬 수 있는 분류체계가 필요하다. 본 논문에서는 현재의 국가과학기술표준분류와 각 기관의 분류를 상호 연계하는 호환표를 사용하여 NTIS를 구축하는 것이 타당한지에 대하여 분석하였다. 분석결과 현행 분류체계를 이용하는 경우 정보의 유통이 원활하지 못한 것으로 나타나고 있으므로 성공적인 NTIS의 구축을 위해서는 새로운 분류체계가 고려될 필요가 있는 것으로 보인다.

• 한국정보통신학회논문지
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• 제8권2호
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• pp.464-470
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• 2004

본 논문에서는 역전파 알고리즘의 성능 개선을 위해 퍼지 제어 시스템을 적용하여 학습률을 자동으로 조정하는 개선된 역전파 알고리즘을 제안한다. 제안된 방법은 목표값과 출력값의 차이에 대한 절대값이 $\varepsilon$ 보다 적거나 같으면 정확성으로 분류하고 크면 부정확성으로 분류한다. 정확성과 부정확성의 개수를 퍼지 제어 시스템에 적용하여 학습률을 동적으로 조정한다. 제안된 방법을 XOR 문제와 숫자 패턴 분류에 적용하여 실험한 결과, 기존의 역전파 알고리즘, 모멘텀 방식, Jacob의 delta-bar-delta 방식보다 성능이 개선됨을 확인하였다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 1998년도 추계종합학술대회 논문집
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• pp.931-934
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• 1998

We have implemented a sign language animation system using 2D and 3D models. From the previous studies, we find out that both models have several limitations based on the linear interpolation and fixed number of frames, and they result in incorrectness of actions and unnatural movements. To solve the problems, in this paper, we propose a sign language animation system using spline interpolation method and variable number of frames. Experimental results show that the proposed method could generate animation more correctly and rapidly than previous methods.

• 컴퓨터교육학회논문지
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• 제6권3호
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• pp.65-73
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• 2003

대부분의 웹 기반 학습은 학습자에게 획일적이고 일관된 학습자료를 제공해주고 있다. 이에 문항분석방법을 적용하거나 학습패턴을 이용하여 웹 기반 학습 시스템에 도입하려는 연구가 진행되었다. 그러나, 이러한 방법을 적용하기 위해서는 복잡한 알고리즘이나 파라미터 설정등이 필요하다. 따라서, 본 연구에서는 문항출제특성 중 문항에 대한 학습자의 오답율과 출제 빈도수를 고려하여 문제를 추출하는 시스템을 설계 및 구현하였다. 또한, 문제 추출에 관한 비즈니스 로직을 EJB로 구현함으로서, 효율적인 시스템 개발이 가능하였으며 유지보수 및 재사용성을 높였다.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 1995년도 추계학술발표회논문집(1)
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• pp.173-178
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• 1995

The verification phase of knowledge base is an important part for developing reliable expert systems, especially in nuclear industry. Although several strategies or tools have been developed to perform potential ewer checking, they often neglect the reliability of verification methods. Because a Petri net provides a uniform mathematical formalization of knowledge base, it has been employed for knowledge base verification. In this work, we devise and suggest an automated tool, called COKEP (Checker Of Knowledge base using Extended Petri net), for detecting incorrectness, inconsistency, and incompleteness in a knowledge base. The scope of the verification problem is expanded to chained errors, unlike previous studies that assumed error incidence to be limited to rule pairs only. In addition, we consider certainty factor in checking, because most of knowledge bases have certainty factors.

• Asia pacific journal of information systems
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• 제14권2호
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• pp.115-130
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• 2004

This paper proposes how to build an expert profile database in KMS, which provides the information of expertise that each expert possesses in the organization. To manage tacit knowledge in a knowledge management system, recent researches in this field have shown that it is more applicable in many ways to provide expert search mechanisms in KMS to pinpoint experts in the organizations with searched expertise so that users can contact them for help. In this paper, we develop a framework to automate expert classification using a text categorization technique called Vector Space Model, through which an expert database composed of all the compiled profile information is built. This approach minimizes the maintenance cost of manual expert profiling while eliminating the possibility of incorrectness and obsolescence resulted from subjective manual processing. Also, we define the structure of expertise so that we can implement the expert classification framework to build an expert database in KMS. The developed prototype system, "Knowledge Portal for Researchers in Science and Technology," is introduced to show the applicability of the proposed framework.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 심포지엄 논문집 정보 및 제어부문
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• pp.29-31
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• 2007

In this paper we propose an directional analytic approach in image data space for X-ray image which is detected from the X-ray projection system. Such a radiographic nondestructive testing has long been used for steel-tube inspection and weld monitoring. The welded area and thickness of steel-tube are detected from gradient radiating mechanism based on the evaluation of biased X-ray source position. The welded area is an ellipse type on low contrast X-ray image including noise. Noise originates from most of elements of the system. such as shielding CCD camera, imaging screen, X-ray source, inspected object, electronic circuits and etc.. Projection incorrectness and noise influence on imaging quality is to be represented by vertical pixels' distribution. Space analysis due to vertical direction also shows the segmental possibility between regions by visual edge evaluation.