• Title/Summary/Keyword: Distributed architecture

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Distributed Visual Media Retrieval Framework Architecture Using Semantic Web (시맨틱 웹을 이용한 분산 시각미디어 검색 프레임워크 아키텍쳐)

  • 손영수;양명미;김정선
    • Proceedings of the Korean Information Science Society Conference
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    • 2004.10a
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    • pp.136-138
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    • 2004
  • 대부분의 Ontology를 이용한 이미지 검색 시스템들은 중앙 집중적(Centralization)으로 구성되어 있어, 단일, 소수의 이미지 제공자의 특화된 Semantic기반의 이미지 검색을 제공한다. 이에 반해 간단한 구조물 가진 메타데이터 기반의 분산 이미지 검색 시스템들은 이미지 제공자들의 자율성을 보장하기 용의 하지만, Semantic 기반의 이미지 검색을 제공하지 못한다. 본 논문은 위 시스템들의 단점들을 극복하기 위해 다양한 이미지 제공자들의 자율성을 보장하면서, Semantic 기반의 이미지 검색을 지원하는 프레임워크의 아키텍쳐를 제안한다.

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Network Resources and Metadata (네트워크자원과 메타데이터)

  • Kim, Tae-Soo
    • Journal of Information Management
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    • v.30 no.3
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    • pp.1-26
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    • 1999
  • Metadata improves discovery of and access to globally distributed network resources. This study is intended to identify and describe the basic data elements of Dublin core metadata and to find interoperability among separate metadata element sets through the architecture of the resource description framework.

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Implementation of Distributed Real-Time Simulation Environment based on HLA for Embedded System (내장형 시스템을 위한 HLA기반 분산 실시간 시뮬레이션 환경 구현)

  • 정재경;김호정;원강연;김종룡
    • Proceedings of the Korean Information Science Society Conference
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    • 2003.04d
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    • pp.400-402
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    • 2003
  • 복잡하고 특수한 기능을 수행하고 기존의 여러 다른 시스템과 연동해야 하는 내장형 시스템을 저비용 고효율적으로 개발하고 시험 및 평가하기 위해서는 분산 실시간 시뮬레이션 환경이 효과적이다. 또한, 특정한 목적으로 개발된 기존의 이질적인 시뮬레이션 모델들간의 상호호환과 재사용이 요구된다. 이러한 요구 사항을 만족시키고, 내장형 시스템과 시뮬레이션 환경의 연동 및 상호운용의 문제점을 해결하기 위해 HLA(High Level Architecture)기반으로 새로운 시뮬레이션 환경구조, 동작과정 및 운영절차를 제안하고 고찰한다.

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A Design of Web based GEM Using Single Object Access Protocol

  • Kang W. Joon;Park, H. Seong
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.57.5-57
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    • 2001
  • This paper presents an enhanced web-based distributed system with Single Access Object Protocol(SOAP), which uses HTTP as a communication protocol and XML as a data presentation. The suggested system is applied into a Generic Equipment Model (GEM) for exchanging specified messages(SECS-II), which are encoded into XML presentation, between Equipment and Host via the web sorrel. In this paper, the designed system architecture and its soap components are presented.

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Design of an efficient routing algorithm on the WK-recursive network

  • Chung, Il-Yong
    • Smart Media Journal
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    • v.11 no.9
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    • pp.39-46
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    • 2022
  • The WK-recursive network proposed by Vecchia and Sanges[1] is widely used in the design and implementation of local area networks and parallel processing architectures. It provides a high degree of regularity and scalability, which conform well to a design and realization of distributed systems involving a large number of computing elements. In this paper, the routing of a message is investigated on the WK-recursive network, which is key to the performance of this network. We present an efficient shortest path algorithm on the WK-recursive network, which is simpler than Chen and Duh[2] in terms of design complexity.

Implementation of TINA CM Package Functionning as Connection Setup and Release (TINA 연결관리 패키지의 연결 설정 및 해제 기능 구현)

  • Park, Jun-Hee;Oh, Hyun-Ju;Kim, Sang-Ha
    • The Transactions of the Korea Information Processing Society
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    • v.4 no.9
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    • pp.2391-2402
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    • 1997
  • TINA is the Open Networking Architecture which as newly introduced software architecture shares the network managements and the service managements on the Distributed Processing Environment. In this paper, based on the concepts and principles defined up to now, we implement and test the CM(Connection Management) Package included in CM which is one of the six functional areas into which TINA Management Architecture is devided. Before the implementation we learn the basic concepts accepted by the four architectures in TINA, and medelling concept of the CM. The interfaces of eaxh information objects explain the functions of computational objects implemented, and the message flows among the computational objects show the connection setup and release procedures.

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A Study on the Area Characteristics and Layout Types of the Floor Plan of High School Facilities in Eup and Myeon Districts of Jeju Island (제주도 읍·면지역 고등학교의 평면구성에 따른 영역별 특성 및 배치유형에 관한 연구)

  • Byun, Jung-Hyun;Park, Chul-Min
    • Journal of the Korean Institute of Rural Architecture
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    • v.21 no.4
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    • pp.37-44
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    • 2019
  • A reduction in the number of high school students in Eup and Myeon districts is very severe. This issue leads to the problem with educational programs of school and an academic achievement gap. Therefore, the purpose of this study is to analyze the characteristics of areas and layout types of the floor plan of high school facilities in Eup and Myeon districts of Jeju Island where the number of students reduces and to provide a fundamental material for establishing school environments. The floor plan of school facilities was categorized into learning, support, common, and other areas and the characteristics of each area were analyzed. As a result, it was necessary to make spatial and facility improvements in common area and support area. The layout type of each area was classified into centralized type, distributed type, and mixed type, and then each type was analyzed. As a result, the main building had low points of the floor plan for learning area and common area. In order to respond to the number of students, it is required to establish reasonable spatial plan criteria and guidelines under the supervision of Office of Education and furthermore to make an effort to create futuristic educational facilities.

Numerical Analysis of Smart Anchors in Soft Clay by (수치해석을 이용한 연약지반에 시공된 스마트 앵커의 거동 분석)

  • Kim, Nak-Kyung;Kim, Sung-Kyu;Kang, Byung-Chul;Kim, Jeong-Ryeol
    • Proceedings of the Korean Geotechical Society Conference
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    • 2010.09a
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    • pp.964-968
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    • 2010
  • Ground anchor, commonly referred to as tiebacks or tie-down, is essentially steel elements secured in the ground by cement grout. They are used to provide either lateral or vertical support for various engineered structures, and are effective in all types of soil and rock. However, ground anchor can not be used in soft clay because anchor resistance would not be guaranteed. In this paper, conceptual introduction of the Smart Anchor is presented. The Smart Anchor is a kind of friction type anchor, the load is diffused and applied to the various parts of the distributed bond length, having less impact on the grout strength, and being able to secure necessary anchoring force in relatively soft grounds. This study shows a numerical study of predicting the load transfer of The Smart Anchor in soft clay. A beam-column analysis was performed by a elastic-plastic P-y curves in soft clay.

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The influence of vehicles on the flutter stability of a long-span suspension bridge

  • Han, Yan;Liu, Shuqian;Cai, C.S.;Zhang, Jianren;Chen, Suren;He, Xuhui
    • Wind and Structures
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    • v.20 no.2
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    • pp.275-292
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    • 2015
  • The presence of traffic on a slender long-span bridge deck will modify the cross-section profile of the bridge, which may influence the flutter derivatives and in turn, the critical flutter wind velocity of the bridge. Studies on the influence of vehicles on the flutter derivatives and the critical flutter wind velocity of bridges are rather rare as compared to the investigations on the coupled buffeting vibration of the wind-vehicle-bridge system. A typical streamlined cross-section for long-span bridges is adopted for both experimental and analytical studies. The scaled bridge section model with vehicle models distributed on the bridge deck considering different traffic flow scenarios has been tested in the wind tunnel. The flutter derivatives of the modified bridge cross section have been identified using forced vibration method and the results suggest that the influence of vehicles on the flutter derivatives of the typical streamlined cross-section cannot be ignored. Based on the identified flutter derivatives, the influence of vehicles on the flutter stability of the bridge is investigated. The results show that the effect of vehicles on the flutter wind velocity is obvious.

A Study on the Interoperability between heterogeneous Component Platform (이형 분산 컴포넌트 플랫폼간 상호 운영성 보장에 대한 연구)

  • 장연세
    • Journal of the Korea Society of Computer and Information
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    • v.7 no.4
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    • pp.40-45
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    • 2002
  • There has been several meaning full efforts to save costs and expand the life-time of a system in changeful If circumstance. It was a module-based architecture that empower productivity at structured programming. It couldn't grow nor evolve, but could raise only calling frequency of module. But OOP or OO-method overcome limit of structured programing by class inheritance and/or overloading and/or over-riding. A component centric architecture, what is mixture of distributed systems, like CORBA. COM+ or EJB/J2EE with OOP. can support not only high reusability or expansion of life-time but also Plug-&-Play between component. In now day. It is not problem of component building but problem of interoperability between heterogeneous CBD Platform. At this study, the enhanced referential component architecture will be suggested.

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