• 제목/요약/키워드: complex representation

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유추 조건에 따른 수학적 문제 해결 효과 (The Effects of Mathematical Problem Solving depending on Analogical Conditions)

  • 반은섭;신재홍
    • 한국학교수학회논문집
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    • 제15권3호
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    • pp.535-563
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    • 2012
  • 본 연구는 유추 조건에 따른 수학적 문제 해결 양상을 분석하여 유추적 사고의 필요성을 확인하고, 시각적 표상을 통한 유추의 효과를 경험적으로 검증하기 위하여 실시되었다. 이러한 목적을 달성하기 위하여 충청북도 청주시에 소재한 일반계 고등학교인 C고등학교 3학년 학생 80명을 연구 대상자로 선정하였다. 이들은 유추 상황에 따라 설정된 표상 대응 조건, 개념 대응 조건, 탐색 조건과 비 유추조건인 단순조건에 각각 20명씩 배정되었으며, 1차 실험과 2차 실험에서 각 조건에 따라 서로 다른 학습 자극을 받은 후에 복소수 수열과 관련된 동일한 문제를 풀었다. SPSS 12.0을 이용한 ${\chi}^2$ 분석을 토대로 유추 조건에 따른 문제 해결률을 비교하여 분석한 결과, 수학적 문제 해결 과정에서 유추적 사고가 이루어지지 않을 경우에 이미 알고 있는 바탕 지식의 사용이 제한될 수 있으며, 시각적 표상을 통하여 바탕 개념과 표적 개념을 대응시켜 보는 것이 유추 전이에 효과적이라는 것을 확인할 수 있었다. 이와 같은 결과는 문제 해결 과정에서 유추적 사고의 필요성을 함의하고 있으며, 시각적 표상을 통하여 바탕 개념과 표적 개념의 관계적 유사성을 인식하는 것이 수학적 문제 해결과 밀접하게 관련되어 있다는 주장을 지지하는 경험적인 근거가 된다.

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유전자 네트워크에서 확률적 그래프 모델을 이용한 정보 네트워크 추론 (Informatics Network Representation Using Probabilistic Graphical Models of Network Genetics)

  • 나상동;박동석;윤영지
    • 한국정보통신학회논문지
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    • 제10권8호
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    • pp.1386-1392
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    • 2006
  • 유전자 생물학 분야에서 여러 각도로 세포 간 네트워크를 입증하는 고 처리 정보공학 WWW에 응용하려는 수치학적인 표현 모델 분석 연구한다. 확률적 그래프 모델을 사용하여 데이터 네트워크로부터 생물학적 통찰력을 확률적 함수적으로 응용해 복잡한 세포 간 네트워크 보다 단순한 하부모델로 구성하여 유전자 베이스네트워크 논리를 유전자 표현 레벨로 나타낸다. 유전자 데이터로부터 확률적 그래프 모델들을 분석하여 유전자 표현 데이터를 정보 공학 네트워크 모델의 방법으로 확장 추론한다.

확률적 그래프 모델을 이용한 세포 간 정보 네트워크 추론 (Informatics Network Representation Between Cells Using Probabilistic Graphical Models)

  • 나상동;신현재;차월석
    • KSBB Journal
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    • 제21권4호
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    • pp.231-235
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    • 2006
  • 유전자 생물학 분야에서 적용가능 한 세포간 네트워크를 입증하는 고처리 정보공학에 응용하려는 수치학적인 표현 모델을 분석 연구한다. 확률적 그래프 모델을 사용하여 데이터 네트워크로부터 생물학적 통찰력을 확률적 함수적으로 응용해 복잡한 세포간 네트워크보다 단순한 하부모델로 구성하여 유전자 베이스네트워크 논리를 유전자 표현 레벨로 나타낸다. 유전자 데이터로부터 확률적 그래프 모델들을 분석하여 유전자 표현 데이터를 정보공학 네트워크 모델의 방법으로 확장 추론한다.

복식과 회화에 표현되는 몸의 재현 - 프란시스 베이컨의 작품과 레이 카와쿠보의 컬렉션을 중심으로 - (Representation of the Body in Dress and Painting - Focusing on the Works of Francis Bacon and Rei Kawakubo -)

  • 임은혁
    • 패션비즈니스
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    • 제17권4호
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    • pp.40-57
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    • 2013
  • In examining the relationship between fashion and art which are intimately interrelated, the body is a suitable subject in that it is the common object of representation. This study investigates and compares the images of the body in Francis Bacon's paintings from 1940s to 1970s and the formative aspect and aesthetic value of the abstract body images in Rei Kawakubo's designs since 1980s. The figures in Bacon's paintings are confusingly and atypically deformed as well as distorted, which are the combinations of the anatomies without references, not so much represented objects as experienced sense. Kawakubo's designs attempt to deform the body, moreover, she transforms the body; represent abstract forms without association with any other figures that exist, emphasizing sculptural or architectural shapes of garment. She suggests extensive visual language of dress by challenging the norms of beauty. The body in Bacon and Kawakubo's works is dispersive as well as complex in that the body images are deconstructed, fragmented, and exaggerated. Respectively, they articulate the perception of the body in postmodernism era by destroying the myth of subject; furthermore establish the aesthetics that transcend conventional ideals by reevaluating as well as refusing the standards of beauty.

SBF Conceptual Representation을 활용한 초등학교 6학년 학생들의 자연현상 개념 분석 (An Analysis of the Conceptions about the Nature Phenomenon Using SBF Conceptual Representation in the 6th Students)

  • 문병찬;김해경
    • 대한지구과학교육학회지
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    • 제3권1호
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    • pp.1-8
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    • 2010
  • The purpose of this study was to analysis the 6th students' conceptions of the nature phenomenon focused on the systematic characteristics. For this study, 12 students of the 6th grades participated in special class for testing their conceptions about the water cycle in the earth system. And we analyzed the outcomes of students' conceptions based on SBF conceptual representation. The results indicate that most of the subjects perceived that the water cycle in earth system wasn't complex system maintaining its existence and functions as a whole through the interaction of its parts but simple system maintaining some actions between atmosphere and hydrosphere, geosphere, biosphere(biological world). And they didn't perceive the characteristics of the water cycle whose all parts must be presented the change of volume between vapor and water, glacier proposing the total hydro-volume are established in the earth system. Based on the results, it was suggested that the main goals of the schools' science education should be to provide students who understand the water cycle system as attaching importance to form with the skills needed to coherent understanding of the essential qualities for the nature phenomenon system.

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현대건축의 표면에 나타난 시각적 촉각의 표현기법에 관한 연구 (A Study on Representation Techniques of Visual Tactility in the Surface of Contemporary Architectutre)

  • 전유창;김성욱
    • 한국실내디자인학회논문집
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    • 제17권3호
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    • pp.139-147
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    • 2008
  • Modern architecture's optical mechanism focused on Ocuularcentrism neglects the tactility of vision and tends to eliminate the optical and tactile dualism of traditional spaces by representing spaces and surfaces that are abstract and cold-hearted. In other words, all sensory experiences, except for visual experiences, are eliminated to make it impossible to create the substantial core of architecture that combines time, image, and surface textures. The fast-changing social trends, the emergence of new materials and technologies, and the corresponding development of various types of media since the Industrial Revolution have changed the paradigm of human perception and representation. With the development of media, other sensory experiences besides visual experience have been stressed and human perception has converted from single perspective to complex perspective. In result, new sensory items, such as visual tactility, have replaced the traditional vision-centered hierarchy. The composition of architectural surfaces has represented the functional and commercial needs of technology, structure, as well as the socio-cultural needs of the community. In contemporary times, it is being changed and developed by the new tactility and the corresponding expression of modern architecture. Based on the visual representation of tactility of architectural surface, this study used a composition of surface that combines various events, meanings, and senses to examine how architecture can mediate and reproduce viewers' visual experiences and discover the existential relationship between architecture and men.

Software Engineering Meets Network Engineering: Conceptual Model for Events Monitoring and Logging

  • Al-Fedaghi, Sabah;Behbehani, Bader
    • International Journal of Computer Science & Network Security
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    • 제21권12호
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    • pp.9-20
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    • 2021
  • Abstraction applied in computer networking hides network details behind a well-defined representation by building a model that captures an essential aspect of the network system. Two current methods of representation are available, one based on graph theory, where a network node is reduced to a point in a graph, and the other the use of non-methodological iconic depictions such as human heads, walls, towers or computer racks. In this paper, we adopt an abstract representation methodology, the thinging machine (TM), proposed in software engineering to model computer networks. TM defines a single coherent network architecture and topology that is constituted from only five generic actions with two types of arrows. Without loss of generality, this paper applies TM to model the area of network monitoring in packet-mode transmission. Complex network documents are difficult to maintain and are not guaranteed to mirror actual situations. Network monitoring is constant monitoring for and alerting of malfunctions, failures, stoppages or suspicious activities in a network system. Current monitoring systems are built on ad hoc descriptions that lack systemization. The TM model of monitoring presents a theoretical foundation integrated with events and behavior descriptions. To investigate TM modeling's feasibility, we apply it to an existing computer network in a Kuwaiti enterprise to create an integrated network system that includes hardware, software and communication facilities. The final specifications point to TM modeling's viability in the computer networking field.

불균형 Haar 웨이블릿 변환을 이용한 군집화를 위한 시계열 표현 (Time series representation for clustering using unbalanced Haar wavelet transformation)

  • 이세훈;백창룡
    • 응용통계연구
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    • 제31권6호
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    • pp.707-719
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    • 2018
  • 시계열 데이터의 분류와 군집화를 효율적으로 수행하기 위해 다양한 시계열 표현 방법들이 제안되었다. 본 연구는 Lin 등 (2007)이 제안한 국소 평균 근사를 이용하여 시계열의 차원을 축소한 후 심볼릭 자료로 이산화하는 symbolic aggregate approximation (SAX) 방법의 개선에 대해서 연구하였다. SAX는 국소 평균 근사를 할 때 등간격으로 임의의 개수의 세그먼트로 나누어 평균을 계산하여 세그먼트의 개수에 그 성능이 크게 좌우된다. 따라서 본 논문은 불균형 Haar 웨이블릿 변환을 통해 국소 평균 수준을 등간격이 아니라 자료의 특성을 반영하여 자료 의존적으로 선택하게 함으로써 시계열의 차원을 효과적으로 축소함과 동시에 정보의 손실을 줄이는 방법에 대해서 제안한다. 제안한 방법은 실증 자료 분석을 통해 SAX 방법을 개선시킴을 확인하였다.

Do Simple Objects Facilitate Infants' Formation of a Spatial Category?

  • Park, You-Jeong;Casasola, Marianella;Kim, Jin-Wook
    • Child Studies in Asia-Pacific Contexts
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    • 제2권2호
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    • pp.77-90
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    • 2012
  • The present study investigated infants' ability to form a category of a support relation (i.e., "on") when the objects depicting the relation were perceptually simple versus more complex. Twenty Korean infants of 14 months were habituated to dynamic support events with objects that were either simple or more complex in appearance. They were then tested with events that differed from the habituation events in the specific objects, spatial relation, or both. Infants formed a support category whether familiarized to simple or complex objects, looking significantly longer at test events with a novel than familiar relation. The results indicate that at 14 months of age, object features do not impact infants' ability to form a categorical representation of support.

전문가시스템도구인 K-CLIPS에서의 지식표현 (Representation of Knowledge in K-CLIPS - Expert System Development Tool)

  • 최창근;백종균
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 1989년도 봄 학술발표회 논문집
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    • pp.71-76
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    • 1989
  • Structural design, generally engineering design, is a complex process combinding design knowledges and analysis techniques. While analysis techniques can be automated in an algorithmic fashion, relatively little work has been done in the area of the design automation. An effect approach method for the automation of the engineering design may be a hybrid system, in which design knowledges, specification requirements and interpretations are represented using an expert system methodology and numerically intensive operations of the design process are implemented using an algorithmic language such as FORTRAN. The purpose of this paper is concentrated on the knowledge of K-CLIPS(KAIST-C Language Integrated Production System) used to design and implement this hybrid system. In K-CLIPS, some representation methods : frame, production rule, fact and user defined function are used to construct the knowledge base. The hierarchical knowledges could be expressed more naturally with a little number of rules than other plain production systems.

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