• Title/Summary/Keyword: PARADIGM

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Designing New Algorithms Using Genetic Programming

  • Kim, Jin-Hwa
    • Proceedings of the Korea Inteligent Information System Society Conference
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    • 2004.11a
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    • pp.171-178
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    • 2004
  • This study suggests a general paradigm enhancing genetic mutability. Mutability among heterogeneous members in a genetic population has been a major problem in application of genetic programming to diverse business problems. This suggested paradigm is implemented to developing new methods from existing methods. Within the evolutionary approach taken to designing new methods, a general representation scheme of the genetic programming framework, called a kernel, is introduced. The kernel is derived from the literature of algorithms and heuristics for combinatorial optimization problems. The commonality and differences among these methods have been identified and again combined by following the genetic inheritance merging them. The kernel was tested for selected methods in combinatorial optimization. It not only duplicates the methods in the literature, it also confirms that each of the possible solutions from the genetic mutation is in a valid form, a running program. This evolutionary method suggests diverse hybrid methods in the form of complete programs through evolutionary processes. It finally summarizes its findings from genetic simulation with insight.

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Paradigm Shift of Camera: Part I. Computational Photography (카메라의 패러다임 전환: Part I. 계산 사진학의 태동)

  • Jeong, Kyu-Man
    • Journal of the Korea Computer Graphics Society
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    • v.15 no.4
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    • pp.23-30
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    • 2009
  • From the beginning of 21st century, digital cameras became popular. In computer graphics community, much re search has been done using photographs taken by digital cameras. This kind of research is categorized as computational photography. The purpose of this paper is to explain the appearance of computational photography in the history of photography. Moreover, the history of photography is explained as a series of paradigm shifts. Based on the analysis, future research directions of computational photography will be given.

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A Study of the Toyo Ito's Architecture on the Perspective of Ecology (생태적 건축 관점에서 본 도요 이토 건축에 관한 연구)

  • Yoo, Yeon-Sook
    • Journal of the Korea Furniture Society
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    • v.23 no.4
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    • pp.372-380
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    • 2012
  • Architecture is the result of reflecting paradigm. As the paradigms and architectures are changing, architect between them are not free by no means. As changes occur continuously, it is important to acknowledge the flows of change and to do some roles in that flows. Toyo Ito is one of the architects who confront the contemporary situations, find the problem and struggle to containing it in his architectural world. He tries to accept and reorganize the phenomenon that appears today's society. Contemporary architecture is showing many aspects on the ground of ecological paradigm. Therefore fresh architectural methods are being quested. This study point at one aspect of Toyo Ito's architectural feature - eco-friendly- which have domiant influences on his architecture philosophy. This notion also has important role on Toyo Ito's past and present activities.

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Emergence-Based Object Model in the viewpoint of S/W Development (S/W 개발 관점에서의 창발 기반 객체 모델)

  • 고성범
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • 1999.11a
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    • pp.53-58
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    • 1999
  • Recently, the size and complexity of the system we have to develop and to deal with are expanding quickly. Because of the great size of causally related network in itself, such a system will be very difficult to deal with based on the typical reduction model. One of alternatives for this is to adopt emergence-based paradigm instead of reduction-based paradigm. The first is based on the low level causality and the latter on the high level emergence. In this paper we proposed an emergence-based object model realizable in terms of engineering. It is the abstracted one from original object model using of such concepts as performance function, interest function and emotional layer. The suggested model allows us to emerge some important concepts which might be useful for implementing the complex system which can hardly be available by reduction paradigm.

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A Simulation-Based Expert System Paradigm (모의실험을 통한 전문가 시스템)

  • Kim, Sun-Uk
    • Journal of Korean Institute of Industrial Engineers
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    • v.18 no.2
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    • pp.99-107
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    • 1992
  • Both simulation and expert systems are popular ways to solve complex and hard problems. However, the results of the simulation, which include a large amount of valuable information as a good knowledge source, are not used efficiently. Furthermore, the development of the expert systems can fail because there is no expert or an expert is not available. A new Simulation-Based Expert System(SIMBES) paradigm has been constructed to overcome these problems. It consists of simulator, feature extractor, machine learning system, performance evaluator and Knowledge-Based Expert System(KBES). A SIMBES was implemented for an existing schedule-based MRP system in Smalltalk/V to show how this paradigm works and experimented for a large number of jobs. The KBES and the existing system produced better schedules for 72 percent and 28 percent of the jobs, respectively.

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Reliability Paradigm-Changes in Industry 4.0 (4차 산업혁명 시대에서의 신뢰성 패러다임의 변화)

  • Jeong, Hai Sung
    • Journal of Applied Reliability
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    • v.17 no.4
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    • pp.289-295
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    • 2017
  • Purpose: This paper will focus on the reliability technological innovation following the emergence of industry 4.0 featured by convergence, connection and complexity. In the course of the process, the concept and application of 3R (Robustness, Redundancy, Resilience) are considered along with reliability in industry 4.0. Methods: Reliability paradigm-changes are presented to meet the purpose of keeping the desired function in Industry 4.0. And the introduction of resilience, a concept compromising reliability is to be suggested. Results: The necessity of the 3R (Robustness, Redundancy, Resilience) introduction is emphasized according to reliability paradigm-changes. Conclusion: Reliability, robustness, redundancy and resilience are not mutually exclusive. Ultimately, acquiring the resilience requires robustness, redundancy and fittable maintenance procedures.

New paradigm of common cause human behavior error domain in human-software interation

  • Park, P.;Lee, K.S.
    • Proceedings of the ESK Conference
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    • 1992.10a
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    • pp.84-89
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    • 1992
  • This study is to develop a cognitive paradigm including a new model of common cause human behavior error domain and to analyze their causal factors and their properties of common cause huamn error characteristics in software engineering.l A laboratory study was performed to analyze the common causes of human behavior domain error in software develoment and to indentify software design factors contributing to the common cause effects in common cause failure redundancy. The results and analytical paradigm developed in this resuarch can be applied to reliability improvement and cost reduction in software development for many applications. Results are also expected to provide training guideliness for software engineers and for more effective design of ultra-high reliabile software packages.

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Paradigm Shift in Prostate Cancer Diagnosis: Pre-Biopsy Prostate Magnetic Resonance Imaging and Targeted Biopsy

  • Jung Jae Park;Chan Kyo Kim
    • Korean Journal of Radiology
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    • v.23 no.6
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    • pp.625-637
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    • 2022
  • With regard to the indolent clinical characteristics of prostate cancer (PCa), the more selective detection of clinically significant PCa (CSC) has been emphasized in its diagnosis and management. Magnetic resonance imaging (MRI) has advanced technically, and recent international cooperation has provided a standardized imaging and reporting system for prostate MRI. Accordingly, prostate MRI has recently been investigated and utilized as a triage tool before biopsy to guide tissue sampling to increase the detection rate of CSC beyond the staging tool for patients in whom PCa was already confirmed on conventional systematic biopsy. Radiologists must understand the current paradigm shift for better PCa diagnosis and management. This article reviewed the recent literature, demonstrating the diagnostic value of pre-biopsy prostate MRI with targeted biopsy and discussed unsolved issues regarding the paradigm shift in the diagnosis of PCa.

The Differences of Graph Construction of Middle School Students on Daily-life and Scientific Contexts by the Views on the Nature of Scientific Measurement (중학생의 측정의 본성에 대한 견해에 따른 일상 및 과학적 맥락에서의 그래프 구성의 차이)

  • Lee, Jaewon;Ryu, Goeun;Lee, Kyuyul;Noh, Taehee
    • Journal of the Korean Chemical Society
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    • v.63 no.6
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    • pp.473-485
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    • 2019
  • In this study, we investigated the differences of graph constructed by middle school students in daily-life and scientific contexts according to the views on the nature of scientific measurement. A test consisting of three similar data sets regarding daily-life and scientific contexts was developed, and administered to 151 ninth graders. They were expected to construct proportional, inverse-proportional, and increasing and become constant form of graphs for each data set. Graphs constructed were analyzed in the aspects of constructing a trend line (types of a trend line, interpolation/extrapolation), selecting axes variables, scaling axes, and plotting points. Analyses of the results revealed that the students with set paradigm tended to construct a curved trend line, while those with point paradigm constructed a broken trend line in inverse-proportional graph questions. In the aspects of interpolation/extrapolation, most students with set paradigm performed both interpolation and extrapolation better than those with point paradigm in scientific context. Most students with set paradigm performed both interpolation and extrapolation regardless of contexts, while the proportion of interpolation of those with point paradigm was higher in scientific context than in daily-life context. In selecting axes variables, scaling axes, and plotting dots, there were no statistically significant differences between set and point paradigms. On the bases of the results, educational implications for improving graph construction skills of middle school students are discussed.

Study on the Attitudinal changes of the Korea Forest Service Employees toward New Forest Resource Management Paradigm : 1993-2006 (신 산림자원관리 패러다임에 대한 태도변화 연구 - 한국 산림청 공무원을 대상으로 -)

  • Kim, Yong-Ha;Kim, Se-Bin
    • Journal of Korean Society of Forest Science
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    • v.97 no.3
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    • pp.237-248
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    • 2008
  • Recently the social movement which emphasizes the new balanced relationships between human and its environment has been arisen. In the field of forestry also the new paradigm which requires to manage forest resources in a sustainable way has been issued. Furthermore forest policy environment in Korea has been rapidly changed. The Forest Law era lasted over 40 and more years was ended and the new Forest Basic Law era which emphasizes the sustainable forest management just started in 2006. Under these circumstances this study explored the attitudinal changes of the Korea Forest Service employees, who have strong influence in forest policy making and implementing, on the multiple use issues of national forests, the new environmental paradigm and resources management paradigm between 1993 and 2006. The study results indicate that there are no significant differences on attitudes and beliefs between the staff and line employee groups. But there are attitudinal changes between 1993 and 2006 groups. Generally the KFS employees favored using national forest lands for the timber production and recreational uses, but they did not favor the livestock forage and mineral development. The KFS employees have pro-environmental attitudes and beliefs. On the other hand they perceive the KFS policy position is more toward commodity production or neutral.