• 제목/요약/키워드: Computer system architecture

검색결과 1,420건 처리시간 0.036초

BDI Architecture Based on XML for Intelligent Multi-Agent Systems

  • Lee, Sang-wook;Yun, Ji-hyun;Kim, Il-kon;Hune Cho
    • 한국지능정보시스템학회:학술대회논문집
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    • 한국지능정보시스템학회 2001년도 The Pacific Aisan Confrence On Intelligent Systems 2001
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    • pp.511-515
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    • 2001
  • Many intelligent agent systems are known to incorporate BDI architecture for cognitive reasoning. Since this architecture contains all the knowledge of world model and reasoning rule, it is very complex and difficult to handle. This paper describes a methodology to design and implement BDI architecture, BDIAXml based on XML for multi-agent systems. This XML-based BDI architecture is smaller than any other BDI architecture because it separates knowledge for reasoning from domain knowledge and enables knowledge sharing using XML technology. Knowledge for BDI mental state and reasoning is composed of specific XML files and these XML files are stored into a specific knowledge server. Most systems using BDIAxml architecture can access knowledge from this server. We apply this BDIAXml system to domain of Hospital Information System and show that this architecture performs more efficiently than other BDI architecture system in terms of knowledge sharing, system size, and ease of use.

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Visual Component Assembly and Tool Support Based on System Architecture

  • Lee, Seung-Yun;Kwon, Oh-Cheon;Shin, Gyu-Sang
    • ETRI Journal
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    • 제25권6호
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    • pp.464-474
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    • 2003
  • Component-based development leverages software reusability and reduces development costs. Enterprise JavaBeans (EJB) is a component model developed to reduce the complexity of software development and to facilitate reuse of components. However, EJB does not support component assembly by a plug-and-play technique due to the hard-wired composition at the code level. To cope with this problem, an architecture for EJB component assembly is defined at the abstract level and the inconsistency between the system architecture and its implementation must be eliminated at the implementation level. We propose a component-based application development tool named the COBALT assembler that supports the design and implementation of EJB component assembly by a plug-and-play technique based on the architecture style. The system architecture is first defined by the Architecture Description Language (ADL). The wrapper code and glue code are then generated for the assembly. After the consistency between the architecture and its implementation is checked, the assembled EJB components are deployed in an application server as a new composite component. We use the COBALT assembler for a shopping mall system and demonstrate that it can promote component reuse and leverage the system maintainability.

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IT융합 서비스 환경을 위한 컴퓨터 아키텍쳐 교육 프레임워크 (A Computer Architecture Education Framework in IT Convergence Services Era)

  • 최창열;최황규
    • 정보화연구
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    • 제10권1호
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    • pp.23-31
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    • 2013
  • 일상에서 쉽게 접하는 스마트폰, 센서, 의료융합 같은 서비스들은 서로다른 규모의 정보 시스템으로 실현되지만 대부분 고성능 플랫폼과 내재화 기술에 바탕을 두고 있다. 다양한 IT융합 응용 시스템을 연구개발하는 산업계는 신기술과 핵심 이슈를 이해하고 실무능력을 갖춘 전문인력의 양성과 확보에 어려움을 겪고 있다. 본 논문에서는 IT융합 서비스의 기술적 특성과 요구사항, 컴퓨터 기술의 발전 동향을 함께 고려하는 아키텍쳐 교육 프레임워크를 제안하고 학습자들의 실무능력을 배양하는 교과목 운영방안을 제시한다. 제안하는 프레임워크는 멀티코어 기반 시스템 아키텍쳐, 내재화와 병렬처리 중심의 현실감 있는 실험실습과 시의적절한 캡스톤 설계 방안을 모색하고 있어 새로운 정보기술을 따라잡고 현장적응력을 강화하는 아키텍쳐 강좌의 개발과 운영에 효과적인 활용이 기대된다.

Design for an Efficient Architecture for a Reflective Memory System and its Implementation

  • Baek, Il-Joo;Shin, Soo-Young;Choi, Jae-Young;Park, Tae-Rim;Kwon, Wook-Hyun
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2003년도 ICCAS
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    • pp.1767-1770
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    • 2003
  • This paper proposes an efficient network architecture for reflective memory system (RMS). Using this architecture, the time for broadcasting a shared-data to all nodes can be significantly shortened. The device named topology conversion switch (TCS) is implemented to realize the network architecture. The implemented TCS is applied to the ethernet based real time control network (ERCnet) to evaluate the performance.

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A Secure Operating System Architecture Based on Linux against Communication Offense with Root Exploit for Unmanned Aerial Vehicles

  • Koo, KwangMin;Lee, Woo-yeob;Cho, Sung-Ryung;Joe, Inwhee
    • Journal of Information Processing Systems
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    • 제16권1호
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    • pp.42-48
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    • 2020
  • This paper proposes an operating system architecture for unmanned aerial vehicle (UAV), which is secure against root exploit, resilient to connection loss resulting in the control loss, and able to utilize common applications used in Linux. The Linux-based UAVs are exposed to root exploit. On the other hand, the microkernel-based UAVs are not able to use the common applications utilized in Linux, even though which is secure against root exploit. For this reason, the proposed architecture uses a virtualized microkernel on the Linux operating system to isolate communication roles and prevent root exploit. As a result, the suggested Operating system is secure against root exploit and is able to utilize the common applications at the same time.

국내 건축분야 학과의 현황과 컴퓨터 과목에 대한 조사연구 (A Study on the Curriculum and Computer Program Subjects in Department of Architecture-related)

  • 남윤철
    • 한국디지털건축인테리어학회논문집
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    • 제13권2호
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    • pp.27-34
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    • 2013
  • According to current digital and information society, architecture related departments in universities give and educate computer courses to train top-level human resources suiting the needs of the time. The aim of this study is to curriculum of architecture related departments and to use the references for curriculum organization by understanding computer courses for architecture related departments. The results are as follows: (1) There are 100 departments (28.2%) in the field of architecture and 130 departments including an academic system that is the most departments. Also, there are 86 departments (39.8%) in the field of architecture engineering and 117 departments including an academic system. There are 77 departments in the field of interior architecture, which contain 48 departments (62.3%) of two- or three-year bachelor course college. (2) Department in the field of architecture opens a program study course in the second year of the program that is the most courses had been opened. First, most departments selected an order of learning a structure/detail construction techniques of architecture and design skills such as a foundation system and expression of the structure by hand in the first grade and processing it using a computer in the second grade. (3) BIM was opened in only three departments of 31 departments surveyed and was opened in a senior class. The reasons of still lack of BIM are the compatibility deficit of partners such as building structure, building equipment, securing lecturer, and still the dominant point of CAD in the field. (4) Six departments of 31 departments surveyed did not open a program study course as a major. That is to say, it is learned in a basic course or basic liberal arts education requirements (information area) of each department, or in an own program of each department. (5) The program study is only a means to create architectural drawings in department of the field of architecture. Thus, we should remember not only the drawing through the program but also drawing up a floor plan after understanding of methods such as constructional methods, detail drawing, and expression.

3차원 입체 음향 핵심 알고리즘 평가를 위한 DB 설계 (An Architecture for 3D Audio Core Algorithm Evaluation DB)

  • 황재민;김정혁;강상길
    • 정보화연구
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    • 제11권2호
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    • pp.225-233
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    • 2014
  • 오디오 산업은 프리미엄 산업으로써 나날이 발전 하고 있다. 입체 음향 시스템에 관한 연구는 많이 진행 되고 있다. 하지만 Audio database, algorithm, evaluation, metadata scheme 이 모두 각각 이루어지고 있다. 하나의 시스템에서 만들어진 audio 알고리즘을 평가 하고, 저장 할 수 있다면 입체 음향 오디오 연구 발전에 도움이 될 것이다. 그래서 이 논문 에서는 실감형 3D 오디오의 알고리즘을 시스템 적으로 평가 할 수 있는 Database Architecture 제안 하고, 이 Database system 구현을 위하여 XML metadata scheme를 정의 하였다. 본 논문에서는 새로운 오디오 평가 DB를 제시하고, 이를 체계적으로 구현하기 위한 설계를 제시하고자 한다.

실시간 제어에 의한 개방형 CNC 소프트웨어 모듈의 설계 및 구현 (The Design and Implementation of Open Architecture CNC Software Module by a Real-time Control)

  • 이제필
    • 한국생산제조학회지
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    • 제8권5호
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    • pp.54-62
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    • 1999
  • This paper describes the design and implementation of a PC(personal computer) based open architecture machine tool controller. The hardware of open architecture CNC has generally a motion control board on a PC for controlling a servo motor. But this paper describes open architecture hardware that consists of a PC, a counter board a DAC board and a DIO board only. This makes it easy to generate CNC software module in a hardware-independent way. The proposed open architecture CNC software runs on the MS-Windows NT. The paper describes a method of con-trolling servo motors using a real-time timer of MS-Windows NT and a commercial real-time operating system on the MS-Windows. NT. An open and reconfigurable software module is made up of an object and an API(application programming interface). Using the object and the API a new CNC system can be quickly configured to control dif-ferent machine tools. The proposed open architecture CNC system is applied to 4-axis lettering center.

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Requirement Analysis and Architecture Design for Ubiquitous Healthcare Service Systems

  • Yang, Won-Seob;Hwang, Kyung-Soon;Lee, Keon-Myung;Lee, Kyung-Mi;Kim, Wun-Jae;Yun, Seok-Jung
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • 제7권3호
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    • pp.209-215
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    • 2007
  • Various kind of ubiquitous healthcare services have been developed and tried in patient care and health care fields. Due to technical restrictions and not enough application practices, the service systems have been developed somewhat in ad hoc way. This paper describes the requirements for ubiquitous healthcare service systems most of which need to have and presents a ubiquitous healthcare service system architecture with which various ubiquitous healthcare services can be developed. It also introduces an application system for ubiquitous benign prostatic hyperplasia (BPH) patient care which has been developed based on the architecture.

Middleware Architecture for Open Control Systems in the Distributed Computing Environment

  • Lee, Wongoo;Park, Jaehyun
    • Transactions on Control, Automation and Systems Engineering
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    • 제3권3호
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    • pp.190-195
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    • 2001
  • The advance of computer, network, and Internet technology enables the control systems to process the massive data in the distributed computing environments. To implement and maintain the software in distributed environment, the component-based methodology is widely used. This paper proposes the middleware architecture for the distributed computer control system. With the proposed middleware services, it is relatively easy to maintain compatibility between products and to implement a portable control application. To achieve the compatibility between heterogeneous systems, the proposed architecture provides the communication protocols based on the XML with lightweight event-based service.

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