• Title/Summary/Keyword: web architecture

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A Web Link Architecture Based on XRI Providing Persistent Link (영속적 링크를 제공하는 XRI 기반의 웹 링크 구조)

  • Jung, Eui-Hyun;Kim, Weon;Park, Chan-Ki
    • Journal of the Korea Society of Computer and Information
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    • v.13 no.5
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    • pp.247-253
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    • 2008
  • Web 2.0 and Semantic Web technology will be merged to be a next generation Web that leads presentation-oriented Web to data-centric Web. In the next generation Web. semantic processing. Web Platform, and data fusion are most important technology factors. Resolving the Link Rot is the one of the essential technologies to enable these features. The Link Rot causes not only simple annoyances to users but also more serious problems including data integrity. loss of knowledge. breach of service. and so forth. We have suggested a new XRI-based persistent Web link architecture to cure the Link Rot that has been considered as a deep-seated Problem of the Web. The Proposed architecture is based on the XRI suggested by OASIS and it is designed to support a persistent link by using URL rewriting. Since the architecture is designed as a server-side technology, it is superior to existing research especially in Interoperability. Transparency and Adoptability. In addition to this, the architecture provides a metadata identification to be used fer context-aware link resolution.

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An Architecture for Integrating OODBs with WWW (웹 상에서 객체지향 데이터 베이스와 통합 아키텍처)

  • Haeng-Kon Kim;Jeun-Geun Kang
    • Journal of the Korea Computer Industry Society
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    • v.2 no.2
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    • pp.247-258
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    • 2001
  • The main topic of this paper is how to structure information so that the view of the web, both within and across web pages, is dynamically customizable. We present an architecture that integrates Object-Oriented Databases with the World Wide Web to organize such dynamic structures. Different non, or the same user at different times, could have different views of the web. We discuss several architectural variants and implementation issues. Our chosen architecture provides high flexibility for a wide variety of applications, ranging from software development environments to the IO-web system.

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Preliminary Performance Evaluation of a Web Crawler with Dynamic Scheduling Support (동적 스케줄링 기반 웹 크롤러의 성능분석)

  • Lee, Yong-Doo;Chae, Soo-Hwan
    • Journal of Korea Society of Industrial Information Systems
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    • v.8 no.3
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    • pp.12-18
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    • 2003
  • A web crawler is used widely in a variety of Internet applications such as search engines. As the Internet continues to grow, high performance web crawlers become more essential. Crawl scheduling which manages the allocation of web pages to each process for downloading documents is one of the important issues. In this paper, we identify issues that are important and challenging in the crawl scheduling. To address the issues, we propose a dynamic owl scheduling framework and subsequently a system architecture for a web crawler subject to the framework. This paper presents the architecture of a web crawler with dynamic scheduling support. The result of our preliminary performance evaluation made to the proposed crawler architecture is also presented.

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A Study on the Development Web Services Component Based Service Oriented Architecture (SOA 기반의 웹 서비스 컴포넌트 개발에 관한 연구)

  • Park Dong-Sik;Shin Ho-Jun;Kim Haeng-Kon
    • Journal of Korea Multimedia Society
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    • v.7 no.10
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    • pp.1496-1504
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    • 2004
  • Web service should be to connect business between enterprise through the Internet, promotion of construction speed and decrease of development expense of service construction are possible. Also, unification with other domain is possible easily, and update or correction is easy by offering reusability and replaceability through component based development. In this paper, We suggest development process to build architecture and this to integrate consisted component efficiently to develop web service that is embodied in supplier side on service oriented architecture(SOA). The suggest architecture to integrate component that is consisted for this efficiently, and describes development process. So that component develops web service to base structure of web service because do command stratification logically function in each hierarchy define, and presents architecture based on logical hierarchy. The web services consist of Facade and Backside component; The Facade component have web service functions. We describe process that develop to Facade component and present mailing web services as case study. It can be decrease production cost and development time. The web service based on component will improve reliability for reuseability and replaceability.

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Research on anti-seismic property of new end plate bolt connections - Wave web girder-column joint

  • Jiang, Haotian;Li, Qingning;Yan, Lei;Han, Chun;Lu, Wei;Jiang, Weishan
    • Steel and Composite Structures
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    • v.22 no.1
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    • pp.45-61
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    • 2016
  • The domestic and foreign scholars conducted many studies on mechanical properties of wave web steel beam and high-strength spiral stirrups confined concrete columns. Based on the previous research work, studies were conducted on the anti-seismic property of the end plate bolt connected wave web steel beam and high-strength spiral stirrups confined concrete column nodes applied with pre-tightening force. Four full-size node test models in two groups were designed for low-cycle repeated loading quasi-static test. Through observation of the stress, distortion, failure process and failure mode of node models, analysis was made on its load-carrying capacity, deformation performance and energy dissipation capacity, and the reliability of the new node was verified. The results showed that: under action of the beam-end stiffener, the plastic hinges on the end of wave web steel beam are displaced outward and played its role of energy dissipation capacity. The study results provided reliable theoretical basis for the engineering application of the new types of nodes.

A Service-Oriented Architecture for Computational Creativity

  • Veale, Tony
    • Journal of Computing Science and Engineering
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    • v.7 no.3
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    • pp.159-167
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    • 2013
  • Creativity is a long cherished and widely studied aspect of human behavior that allows us to re-invent the familiar, and to imagine the new. Computational creativity (CC) is a newly burgeoning area of creativity research that brings together academics and practitioners from diverse disciplines, genres and modalities, to explore the potential of computers to be autonomously creative, or to collaborate as co-creators with people. We describe here an architecture for creative Web services that will act as a force magnifier for CC, both for academic research, and for the effective deployment of real CC applications in industry. For researchers, this service-oriented architecture supports the pooling of technologies in a robust interoperable framework, in which CC models are conceived, developed and migrated from lab settings to an industrial strength platform. Industry developers, for their part, will be able to exploit novel results of CC research in a robust, low-risk form, without having to re-implement algorithms from a quickly moving field. We illustrate the architecture with the first of a growing set of creative Web services that provide robust figurative language processing on demand.

Web Service Application for Machine Tool Fault with Open Architecture CNC (개방형 CNC를 가지는 공작기계의 고장진단과 웹 서비스 기술)

  • 김동훈;김선호;윤원수;고광식
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2003.06a
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    • pp.121-124
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    • 2003
  • The conventional CNC(Computerized Numerical Controller) of machine tool, which is dependent to CNC maker, was a closed architecture type. Therefore, it is impossible to implement a special user-define function to CNC. But recently, CNC is changed to OAC(Open Architecture Controller) type increasingly and the general function of CNC can be upgrade efficiently. This paper describes web service application for remote monitoring regarding the faults or machine tool with open architecture CNC. The major faults of CNC machine tool can be defined to the operational faults to be charged over 70%. Those faults are unpredictable because of being occurred without any warning. To generalize the fault diagnosis efficiently. two diagnosis models such as SF(Switching Function) and SSF(Step Switching Function) are proposed and the function of fault diagnosis is implemented to internal function of OAC. Also, to service remotely the faults of CNC machine tool. the suitable web environment is proposed and practical function is programmed to evaluate its operation on web.

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A New Hybrid Architecture for Cooperative Web Caching

  • Baek, Jin-Suk;Kaur, Gurpreet;Yang, Jung-Hoon
    • Journal of Ubiquitous Convergence Technology
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    • v.2 no.1
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    • pp.1-11
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    • 2008
  • An effective solution to the problems caused by the explosive growth of World Wide Web is a web caching that employing an additional server, called proxy cache, between the clients and main server for caching the popular web objects near the clients. However, a single proxy cache can easily become the bottleneck. Deploying groups of cooperative caches provides scalability and robustness by eliminating the limitations caused by a single proxy cache. Two common architectures to implement the cooperative caching are hierarchical and distributed caching systems. Unfortunately, both architectures suffer from performance limitations. We propose an efficient hybrid caching architecture eliminating these limitations by using both the hierarchical and same level caches. Our performance evaluation with our investigated simulator shows that the proposed architecture offers the best of both existing architectures in terms of cache hit rate, the number of query messages from clients, and response time.

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A Study on the Implementation of Web-Camera System and the Measurement of Traffic (웹 카메라 시스템의 구현과 트래픽 측정에 관한 연구)

  • 안영민;진현준;박노경
    • Proceedings of the Korean Information Science Society Conference
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    • 2001.04a
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    • pp.187-189
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    • 2001
  • In this study, the Web Camera System is implementation and simulated on two different architectures. In the one architecture, a Web-server and Camera-server are implemented on the same system, and the system transfers motion picture which compressed to JPEG file to users on the WWW(World Wide Web). In the other architecture, the Web-server and Camera-server are implemented on different systems, and the motion picture is transferred from the Camera-server to Web-server, and finally to users. In order to compare system performance between two architecture, data traffic is measured and simulated in the unit of byte per second and frame per second.

A System Architecture Design for Web-Based Application Systems using Role-Based Access Control (직무기반 접근제어를 사용하는 웹기반 응용 시스템의 시스템 아키텍처 설계)

  • Lee, Ho
    • Journal of the Korea Society of Computer and Information
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    • v.15 no.12
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    • pp.217-225
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    • 2010
  • Among web-based systems being widely used now, there are so many systems which are still using an user-level access control method. By successfully applying role-based access control(RBAC) to web-based application systems, we can expect to have an effective means with reinforced security for Internet-based systems. In order to apply RBAC to web-based application systems, we should come up with a system architecture for it. I proposed a system architecture which is needed to apply RBAC to web-based application systems. The proposed system architecture is largely composed of system composition and system functioning. For details, firstly, a certificate used by RBAC is specified. Secondly, a system architecture using a user-pull method is proposed and overall system components are mentioned with a role server being centered. Then, I showed how the system architecture can work to carry out RBAC on web-based application systems. Lastly, the analyses on the proposed system architecture are described for the purpose of proving its feasibility.