• 제목/요약/키워드: Hierarchical View

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표준 의학용어 체계에서의 효과적인 용어 비교 검색 기법 (Effective Scheme for Comparative Search of Clinical Terms from Standard Clinical Terminology)

  • 류우석
    • 한국정보통신학회논문지
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    • 제19권3호
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    • pp.537-542
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    • 2015
  • 종합적 표준 임상 의학용어 체계인 SNOMED CT는 용어의 방대함 및 구조의 복잡성 때문에 환자 상태를 표현하는 가장 적합한 용어를 짧은 진료 시간 내에 선택하기가 어려운 용어 선택의 모호성 문제를 내포하고 있다. 본 논문에서는 용어 검색 과정에서 발생하는 동일하거나 유사한 용어를 분석하고 이를 효과적으로 구분하기 위한 용어 비교 검색 기법을 제시한다. 제안하는 기법은 용어의 계층 구조 분석을 통해 용어 간 "is-not-a" 관계를 새로 정의함으로써 두 비교 대상 용어의 차이점을 명확하게 하는 특징이 있다. 이를 통해 진료 과정에서 유사한 이름을 가진 용어들 중 환자의 상태를 가장 적합하게 표현하는 용어를 빠르게 선택함으로써 SNOMED CT의 활용성을 개선한다.

정점증식을 이용한 사진트리 기반 지형 시각화 기법 (Quadtree-based Terrain Visualization Using Vertex Multiplication)

  • 이은석;신병석
    • 한국컴퓨터그래픽스학회논문지
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    • 제15권3호
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    • pp.27-33
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    • 2009
  • 사진트리는 지형 시각화를 위한 점진적인 메쉬 생성에 널리 사용되는 자료구조이다. 사진트리는 빠른 상세단계 선택과 효과적인 시각절두체 선별이 가능하다. 하지만 계층적인 자료구조이므로 CPU에서만 사용할 수 있고 그래픽 하드웨어의 랜더링 파이프라인에서는 활용할 수 없다. 따라서 기존의 사진트리 기반 지형 시각화 기법들은 GPU를 이용한 다른 시각화 방법들에 비하여 CPU 의존도가 크고 처리시간이 오래 걸린다. 본 논문에서는 정점증식을 이용하여 GPU만으로 지형을 렌더링 하는 방법을 소개한다. 이 방법은 기존의 CPU를 이용한 사진트리기반 방법들에 비하여 화질의 저하 없이 빠른 속도로 렌더링 할 수 있다.

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조리 실기 교육을 위한 교수-학습 의사 소통 모형 개발 - 구성주의 관점에서 - (The Development of a Communication Model for Teaching-Learning in Culinary Practical Education - A Constructivism Point of View -)

  • 김태형;나정기
    • 한국조리학회지
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    • 제14권4호
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    • pp.14-26
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    • 2008
  • The purpose of this study is to develop a communication model of teaching-learning at culinary practical learning class in school. Statistically, the organizational culture of culinary schools was influenced by the nature of hierarchical culture, task outcomes, and the conservative culture of organizations in companies. First, in basic skill class, teaching and learning methods are based on a teacher who leads students according to his plans and decisions. Second, in a higher skill course, teaching and learning methods are based on students who take an active part by injecting some fresh ideas into their class. Third, the model of three courses for culinary skill development has an effect on processing into a modeling-scaffolding-fading method by teaching and learning in school. It was ascertained that organizational culture directly or indirectly influenced organizational effectiveness and organizational culture in culinary schools. Moreover, it was found that organizational culture was the biggest influencing concept for communication effectiveness between teachers and students.

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효율적인 데이타 교환을 위한 Content-Centric Networking 식별자 방안 (Content Centric Networking Naming Scheme for Efficient Data Sharing)

  • 김대엽
    • 한국멀티미디어학회논문지
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    • 제15권9호
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    • pp.1126-1132
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    • 2012
  • 네트워크 효율성을 개선하기 위해 CCN은 콘텐츠 제공자로부터 사용자에게 콘텐츠가 전송될 때 중간 네트워크 노드들이 전송되는 콘텐츠를 임시 저장할 수 있다고 가정한다. 또한, 네트워크 노드들이 임시 저장된 콘텐츠에 대한 요청을 수신하면, 해당 요청 메시지를 콘텐츠 제공자에게 전송하지 않고 임시 저장된 콘텐츠를 사용자들에게 전송 한다. 이와 같은 네트워킹 기술을 구현하기 위해 CCN은 계층화된 콘텐츠 이름을 이용하여 요청 메시지와 응답 메시지의 네트워크 전송 경로를 관리한다. 그러나 계층화된 콘텐츠 이름이 콘텐츠 자체에 대한 정보뿐만 아니라 도메인/제공자 정보도 의미론적으로 내포하고 있기 때문에, 콘텐츠 이름을 이용한 사용자/제공자 사생활 침해가 가능하다는 문제점을 갖고 있다. 본 논문에서는 CCN 콘텐츠 이름의 프라이버시 문제점 및 제안된 기술들을 살펴보고, 프라이버시 보호를 위한 개선된 CCN 콘텐츠 이름 관리 방안을 제안한다.

A Modeling of XML Document Preserving Object-Oriented Concepts

  • Kim, Chang Suk;Kim, Dae Su;Son, Dong Cheul
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • 제4권2호
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    • pp.129-134
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    • 2004
  • XML is the new universal format for structured documents and data on the World Wide Web. As the Web becomes a major means of disseminating and sharing information and as the amount of XML data increases substantially, there are increased needs to manage and design such XML document in a novel yet efficient way. Moreover a demand of XML Schema(W3C XML Schema Spec.) that verifies XML document becomes increasing recently. However, XML Schema has a weak point for design because of its complication despite of various data and abundant expressiveness. Thus, it is difficult to design a complex document reflecting the usability, global and local facility and ability of expansion. This paper shows a simple way of modeling for XML document using a fundamental means for database design, the Entity-Relationship model. The design from the Entity-Relationship model to XML Schema can not be directly on account of discordance between the two models. So we present some algorithms to generate XML Schema from the Entity-Relationship model. The algorithms produce XML Schema codes using a hierarchical view representation. An important objective of this modeling is to preserve XML Schema's object-oriented concepts such as reusability, global and local ability. In addition to, implementation procedure and evaluation of the proposed design method are described.

The Effect of Psychological Well-Being on Life Satisfaction for Employees

  • Jung, Myung-Hee
    • 산경연구논집
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    • 제8권5호
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    • pp.35-42
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    • 2017
  • Purpose - This study investigated small business members' cognition of happiness in accordance with changes of employment environment at the nation's industrialization. The study verified effects of labor workers' psychological wellbeing conditions upon life satisfaction as well as the effects of job burden and family burden of employment instability. Research design, data, and methodology - The subjects were small business workers in Seoul and Metropolitan areas. The author collected 150 copies of effective questionnaires. Regression analysis, hierarchical analysis and 3-stage mediation regression analysis were done. Results - The findings of this research was that psychological wellbeing factors alleviated job burden and family burden to increase satisfaction with life. Employment instability moderated between job burden and satisfaction with life, job burden between environmental control and satisfaction with life, and family burden between goal and satisfaction of life. Members needed sub factors of psychological wellbeing, especially reflection for self-acceptance. Conclusions - This study inspected effects of small business workers' psychological wellbeing upon life satisfaction at changes of management environment as well as labor environment to verify effects of job burden, family burden and employment instability and to find out conditions of human resources management from point of view of small business and workers.

다변량기법을 활용한 용담호 수질측정지점 유사성 연구 (A Study on Measuring the Similarity Among Sampling Sites in Lake Yongdam with Water Quality Data Using Multivariate Techniques)

  • 이요상;권세혁
    • 환경영향평가
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    • 제18권6호
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    • pp.401-409
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    • 2009
  • Multivariate statistical approaches to classify sampling sites with measuring their similarity by water quality data and understand the characteristics of classified clusters have been discussed for the optimal water quality monitering network. For empirical study, data of two years (2005, 2006) at the 9 sampling sites with the combination of 2 depth levels and 7 important variables related to water quality is collected in Yongdam reservoir. The similarity among sampling sites is measured with Euclidean distances of water quality related variables and they are classified by hierarchical clustering method. The clustered sites are discussed with principal component variables in the view of the geographical characteristics of them and reducing the number of measuring sites. Nine sampling sites are clustered as follows; One cluster of 5, 6, and 7 sampling sites shows the characteristic of low water depth and main stream of water. The sites of 2 and 4 are clustered into the same group by characteristics of hydraulics which come from that of main stream. But their changing pattern of water quality looks like different since the site of 2 is near to dam. The sampling sites of 3, 8, and 9 are individually positioned due to the different tributary.

서사시 "금강"의 문화콘텐츠 개발에 관한 연구 (Study on the Development of Cultural Contents for Epic Poem Geumgang)

  • 강상대
    • 한국콘텐츠학회논문지
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    • 제6권7호
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    • pp.127-135
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    • 2006
  • 본 연구는 신동엽의 서사시 ${\ulcorner}$금강${\lrcorner}$을 문화콘템츠로 개발하는 토대를 제공하기 위하여 텍스트의 서술구 성을 분석하고 스토리텔링 요소를 검토하였다. 이 작품의 서술은 역사적 허구적 서정적 성격의 서술내 용이 단독 혹은 복합으로 구성되고 있으며, 각 서술내용이 내포하고 있는 의미 층위는 시인의 역사의식과 현실인식을 드러내는 데 기여한다. 또한 이 작품은 서술내용에 따른 다양한 층위의 사건과 인물을 구현함으로써 풍부한 스토리텔링 요소를 지니고 있다. 이 작품이 보여주는 영웅적 성격의 인물, 전쟁 서사와 허구적 공간, 설화적 스토리 등은 매우 중요한 스토리텔링 요소로서 [금강]의 문화콘텐츠 개발에 효과적으로 활용될 수 있을 것이다.

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요양병원 간호사의 연명치료중단에 대한 태도에 미치는 영향 요인 (Factors affecting the attitude toward withdrawal of life-sustaining treatment of nurses working at long-term care hospitals)

  • 김미숙
    • 한국간호교육학회지
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    • 제26권4호
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    • pp.383-392
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    • 2020
  • Purpose: This study was a descriptive study to identify factors affecting the attitude toward life-sustaining treatment of nurses working at long-term care hospitals. Methods: Data were collected through structured questionnaires from August 2nd to 27th, 2019. Study participants consisted of 163 nurses who were working for at least 6 months from 7 long-term care hospitals in B and K city. Data were analyzed using t-test, ANOVA, Scheffe' test, Pearson's correlation coefficients, and hierarchical regression with SPSS WIN v 21.0. Results: There were significantly positive correlations between awareness of good death (r=.46, p<.001) and perception of patients' rights (r=.32, p<.001). The factors affecting participants' attitude toward life-sustaining treatment were awareness of good death (β=.35, p<.001) and their own view of death (β=.24, p=.001), which explained about 27.0% of the attitude toward life-sustaining treatment. Conclusion: Based on these results, it is necessary to develop nursing educational materials that can establish values for deaths, and cultivate legal and ethical knowledge related to attitude toward life-sustaining treatment. In addition, since the severity of a patient's condition varies and the characteristics of the institution vary depending on the type of hospital, a study is needed on the relevance of variables considering the hospital environment.

저수지 수질조사 지점간 유사성 분석 (A Study on Measuring the Similarity Among Sampling Sites in Lake)

  • 이요상;고덕구;이현석
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2010년도 학술발표회
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    • pp.957-961
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    • 2010
  • Multivariate statistical approaches to classify sampling sites with measuring their similarity by water quality data. For empirical study, data of two years at the 9 sampling sites with the combination of 2 depth levels and 7 important variables related to water quality is collected in reservoir. The similarity among sampling sites is measured with Euclidean distances of water quality related variables and they are classified by hierarchical clustering method. The clustered sites are discussed with principal component variables in the view of the geographical characteristics of them and reducing the number of measuring sites. Nine sampling sites are clustered as follows; One cluster of 5, 6, and 7 sampling sites shows the characteristic of low water depth and main stream of water. The sites of 2 and 4 are clustered into the same group by characteristics of hydraulics which come from that of main stream. But their changing pattern of water quality looks like different since the site of 2 is near to dam. The sampling sites of 3, 8, and 9 are individually positioned due to the different tributary.

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