• Title/Summary/Keyword: Agent Communication Language

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Architecture Oesign for an Agent-based GIS (에이전트 기반 지리정보시스템 구조 설계)

  • 박경모
    • Proceedings of the Korean Information Science Society Conference
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    • 2002.04b
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    • pp.544-546
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    • 2002
  • 본 논문에서는 에이전트 기반 지리정보시스템(Geographic Information System) 구조 설계 개념에 대해 기술한다. 본 구조의 본체론 관련 GIS 분야 에이전트들 사이에 정보 교환에 필요한 세 가지 구성요소가 있는데 첫째는, 벡터, 래스터, 이미지를 포함하는 데이터이며 둘째로, 이름, 입력, 출력 및 요구 파라미터를 포함하는 알고리즘 명세이고 셋째로, 질의 및 결과 정보가 그 마지막이다. 에이전트 통신 언어(Agent Communication Language)는 에이전트들 간의 통신의 기반으로 제공된 본체론을 사용한다. 본체론과 ACL은 분산 다중-에이전트 GIS 시스템의 에이전트 통신에 있어 중심적 역할을 하고 extensible Markup Language(XML)를 이용한 Resource Description Framiework(RDF)로 인코딩 되며 공동작업과 재사용을 지원할 수 있다

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The Agent Platform in Multi-Agent System Providing Intelligent Medical Information (지능형 의료 정보 제공을 위한 멀티 에이전트 시스템에서 에이전트 플랫폼)

  • 최원기;이상욱;김일곤
    • Proceedings of the Korea Inteligent Information System Society Conference
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    • 2000.11a
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    • pp.445-454
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    • 2000
  • 의료 정보 시스템은 많은 지식과 의료 인력과의 연계가 필요하기 때문에, 멀티 에이전트 시스템의 활용 영역으로 적합하다. 본 논문에서는 지능형 의료 정보 제공을 위한 멀티 에이전트 시스템인 MAMI(Multi-Agent system for Medical Image)의 에이전트 플랫폼의 설계 및 구현 대해 기술한다. MAMI는 여러 의료 정보 중 의료 영상을 위한 멀티 에이전트 시스템이다. MAMI의 가장 중요한 구성 요소로서는 에이전트 플랫폼을 들 수 있다. 에이전트 플랫폼은 에이전트들이 동작할 수 있는 물리적 기반을 제공해 준다. MAMI는 FIPA(foundation for Intelligent Physical Agent)가 제안하는 관리 모델을 따르고 있다. MAMI에서는 COM(Common Object Model)과 XML(Extensible Markup Language)로 인코딩된 ACL(Agent Communication Language)을 메시지 교환에 이용하고 있다. 의료 영역의 특성상 의사와 같은 의료 전문 인력과의 연계는 반드시 필요하다. MAMI는 이를 위해서 의료 인력을 하나의 에이전트로 개념화하여 시스템에 연결한다. MAMI의 에이전트 플랫폼은 소프트웨어 에이전트와 휴먼 에이전트들이 지식을 공유하기에 적합한 물리적 기반을 제 공해주어 지능형 의료 정보 서비스를 용이하게 해준다.

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Design and Implementation of a Character Agent based Multimodal Presentation Authoring Tool (캐릭터 에이전트 기반 멀티모달 프리젠테이션 저작도구 설계 및 구현)

  • 정성태;정석태
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.7 no.5
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    • pp.941-948
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    • 2003
  • Character agent based Multimodal Presentation Markup Language(MPML) has been developed to increase the efficiency of the presentation using a computer. However, authoring of a presentation by using MPML is not simple because MPML describes only the behavior of the character agent. It describes the presentation background by importing HTML documents. This paper proposes EMPML(Extended MPML) which describes not only the behavior of the character agent but also the presentation background. And an authoring tool for the EMPML has been designed and implemented. By integrating the editing of the presentation background and character agent behavior, the proposed authoring tool supports WYSIWIG(What You See Is What You Get) mode designing. By using the proposed authoring tool, users can make a multimodal presentation without knowing the details of EMPML.

The Methodology for Interoperability between Agent Framework and Information Bus Adapter for Ubiquitous Computing Environments (유비쿼터스 컴퓨팅 환경을 위한 에이전트 시스템과 인포메이션 버스 어댑터간 상호 운용성을 위한 기법)

  • Park, Sang-Yong;Han, Seung-Wok;Youn, Hee-Yong
    • The KIPS Transactions:PartA
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    • v.13A no.6 s.103
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    • pp.495-500
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    • 2006
  • The role of autonomic and intelligent agents in various environments is getting more important as demand on ubiquitous computing grows. The agents exchange information using the ACL (Agent Communication Language) to autonomously solve the problems. In this paper we propose a way of efficient interoperability technique between the agent framework built based on the international standard FIPA(Foundation for Intelligent Physical Agents) and the CORBA event service-based information bus adapter developed by us. The design and implementation of EMTI (Efficient Message Transport Interface) allowing communication between the information bus adapter which is non-agent platform and JADE platform are presented and its performance is evaluated by letting them exchange a large amount of messages.

Extended Information Pool and Indirect Meeting Mechanism for Inter-agent Communications (이동에이전트간 통신을 지원하는 확장된 정보 저장소와 간접 미팅 기법)

  • Jeon, Byung-Kook;Yi, Keun-Sang;Choi, Yung-Keun
    • Journal of KIISE:Information Networking
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    • v.27 no.2
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    • pp.131-137
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    • 2000
  • The communication and collaboration of mobile agents are efficient in doing information processing in the Internet. Therefore, this paper proposes an efficient communication mechanism that support to inter-agent communications and collaborations. For the remark mentioned above, a mobile agent system provides an indirect meeting mechanism as well as an extended information pool, which has an effect on decreasing network bandwidth. In addition, some proposed communication methods can support to message multicasting so that those are effectively adapted for a model of group agent. Finally, the proposed mechanism is implemented and analyzed in the MAS, a mobile agent system model developed by the Java language.

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An Mobile Agent Communication Language based on Event Notification Architecture (이벤트 통지 구조를 기반으로 한 이동 에이전트 통신 언어)

  • Seo, Hyo-Jeong;Bang, Dae-Uk
    • Proceedings of the Korea Information Processing Society Conference
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    • 2000.10a
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    • pp.609-612
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    • 2000
  • 최근 들어 에이전트의 관심이 높아지면서 에이전트 시스템의 연구도 많아졌다. 특히 에이전트가 가지는 특성에 의해 여러 분야에서 에이전트의 이용도 높아졌다. 에이전트들은 특성에 의해 고정 에이전트, 이동 에이전트 등 여러 가지로 분류된다. 하지만 이들 모든 에이전트 시스템이 갖추어야 할 요소 중 에이전트 통신은 아주 중요한 부분을 차지한다. 에이전트 통신을 위해서는 에이전트간 통신언어는 없어서는 안될 부분이다. 이제까지 KQML, FIPA ACL과 같이 여러 에이전트 통신 언어가 연구되었지만 이동 에이전트를 위한 통신 언어는 없었다. 이들 언어를 이동 에이전트 통신 언어로 사용하기에는 여러 가지 문제점이 있다. 본 논문은 이를 위해서 이동 에이전트에 적합한 이벤트 통지 통신 구조를 기반으로 한 이동 에이전트 통신 언어인 MACL(Mobile Agent Communication Language)를 제시한다.

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Design and Implementation of Agent Systems based on Case Markup Language for e-Leaning (e-Learning을 위한 사례 마크업 언어 기반 에이전트 시스템의 설계 및 구현 :사례 기반 학습자 모델을 중심으로)

  • 한선관;윤정섭;조근식
    • The Journal of Society for e-Business Studies
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    • v.6 no.3
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    • pp.63-80
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    • 2001
  • The construction of the students knowledge in e-Learning systems, namely the student modeling, is a core component used to develop e-Learning systems. However, existing e-Learning systems have many problems to share the knowledge in a heterogeneous student model and a distributed knowledge base. Because the methods of the knowledge representation are different in each e-Learning systems, the accumulated knowledge cannot be used or shared without a great deal of difficulty. In order to share this knowledge, existing systems must reconstruct the knowledge bases. Consequently, we propose a new a Case Markup Language based on XML in order to overcome these problems. A distributed e-Learning systems fan have the advantage of easily sharing and managing the heterogeneous knowledge base proposed by CaseML. Moreover students can generate and share a case knowledge to use the communication protocol of agents. In this paper, we have designed and developed a CaseML by using a knowledge markup language. Furthermore, in order to construct an intelligent e-Learning systems, we have done our research based on the design and development of the intelligent agent system by using CaseML.

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P2P DICOM System using Multiagent Systems Communicating with XML Encoded ACL (XML 기반 ACL로 통신하는 멀티에이전트 시스템을 이용한 P2P DICOM 시스템)

  • Kwon, Gi-Beom;Kim, Il-Kon
    • Journal of KIISE:Computing Practices and Letters
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    • v.8 no.5
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    • pp.598-606
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    • 2002
  • We suggest a distributed communication and management methodology using PC to PC Query multicasting strategy for efficient management of medical images produced by DICOM(Digital Imaging and Communications in Medicine) Modalities. It is absolutely necessary to reduce strict degradation of PACS system due to large sire of medical images and their very high transport rates. DICOM PC to PC Component is composed of a Service Manager to execute requested queries, a Communication Manager to take charge of file transmission, and a DICOM Manager to manage stored data and system behavior Each Manager itself is a component to search for requested file by interaction or to transmit the file to other PCs. Distributed management and transformation of medical information based on PC to PC Query multicasting methodology will enhance performance of central server and network capacity, reducing overload on both. We organize three major components for system operation. Each component is implemented as Agent. Communication between agents uses XML encoded Agent Communication Language.

Priority-based Message Scheduling for Multi-agent System in Ubiquitous Environment (유비쿼터스 환경에서 멀티 에이전트 시스템을 위한 우선순위 기반 메시지 스케줄링 기법)

  • Yoon, Yang-Seok;Youn, Hee-Yong
    • Journal of Internet Computing and Services
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    • v.9 no.1
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    • pp.137-143
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    • 2008
  • In ubiquitous environment the multi-agent system is effective for providing intelligent services. In this paper we introduce a new scheduling service model for improving the communication performance in the multi-agent system. It is achieved by assigning a priority to the message according to the weight of formalized ACL message and the number of messages exchanged between the agents. An experiment reveals that the proposed approach allows smaller processing time per message and turnaround time than the scheduling with the existing JADE platform. Moreover, the proposed scheme allows a scalable messaging system.

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Multi-Agent based Operation System Modeling for Automated Container Terminals (자동화 컨테이너 터미널을 위한 멀티에이전트 기반의 운영시스템 모델링)

  • Kang K W.;Yu S. Y.;Mo S. J.;Yim J. H.
    • Journal of Navigation and Port Research
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    • v.29 no.6 s.102
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    • pp.567-572
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    • 2005
  • Trade between nations has been globalized since establishing the WTO(World Trade Organization). By lowering trading barriers under the WTO's system, trade in goods has been gradually increased It requires global logistic system that transports goods in between nations. To save cost of product, cargo of product is containerized and container ships to carry container cargo is going to be bigger: In the market, there are many vendors to provide artificial intelligent modules to operate container terminal. In order to integrate automated container terminal system easily and successfully, this thesis proposes high-level XML/ JMS( eXtensive Markup Language/Java Message Service) communication model and multi-agent based system architecture to share knowledges, solve problems, and active objectives by cooperating between autonomous and intelligent agents that are developed by 3rd party companies in the market. This thesis analyzed current situation of advanced automated container terminal with case studies on implemented systems and difficulties to develop automated container terminal system, reviewed technologies of intelligent agent, communication and automation that unmaned automated container terminal is required.