• Title/Summary/Keyword: Agent Design

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A Study on Ship Initial Design Agent System Based on ACL and CORBA (ACL과 CORBA를 이용한 선박 초기설계 에이전트 시스템에 관한 연구)

  • 김동현;이규열;이상욱
    • Korean Journal of Computational Design and Engineering
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    • v.4 no.4
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    • pp.360-370
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    • 1999
  • The paper proposed a basic architecture of an agent system to support exchange and sharing of design informations by means of ACL(Agent Communication Language) which can represent design informations and knowledges. Based on the architecture of the agent system a ship initial design agent system was implemented in order to show the effectiveness of the agent-based system. The basic architecture of the agent consists of an ACL handlerand CORBA(Common Object Request Broker Architecture) objects for the exchange of ACL messages in the heterogeneous and distributed environment. The ACL handler can process expressions of knowledge and manage communication messages among the agents. The paper mainly focuses on the implementation of the ACL handler. The ACL handler consist of a KQML(Knowledge Query and Manipulation Language) handler that manages KQML messages, a conversation module, and a content handler that handles message contents. The conversation modulo implements conversation policies and checks all messages if they are allowable and meaningful messages based on the conversation policies. The implemented agent-based system was applied to the ship initial design to show the handling procedure of the agent system.

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ADE: Agent Development Environment for Engineering (ADE : 공학 에이전트 개발 환경)

  • 구본석;이수홍
    • Korean Journal of Computational Design and Engineering
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    • v.8 no.1
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    • pp.55-63
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    • 2003
  • ADE i,1 a software tool for the design and implementation of multi-agent systems. ADE allows a designer to draw a multi-agent system graphically, specify the necessary properties, and deploy their applications. ADE offers a set of intuitive, easy to use interfaces that enable a designer to completely specify the agents and agent interactions in a multi-agent system. In this environment, JATLite/sup [1]/ is improved significantly. Furthermore, ADE provides a unique set of features for a multi-agent system design tool. An agent description method based on Design roadmap/sup [2]/ theory, a hierarchy of agents, and a fully featured Java-based Graphical User Interface are combined in ADE. This distinct combination of features mates ADE stand out among the existing multi-agent system design tools. This paper presents the research related to the application of the ADE, along with descriptions of its design and implementation.

Design Principles of Animated Pedagogical Agent and Instructional Message for Affective Learning

  • SON, Chanhee
    • Educational Technology International
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    • v.15 no.1
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    • pp.1-26
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    • 2014
  • The purpose of this study was to develop design principles of both animated pedagogical agents as 'credible' persuasive message source and persuasive fear arousing instructional messages in order to help enhance attitude changes toward a certain issue. Based on the previous pedagogical agent research, this study drew the design principles providing ways to manipulate agent credibility level and fear arousing level of message. Consequently, it specified how to make pedagogical agents perceived less or more credible by learners by manipulating a variety of agent features. For fear arousing message, this study showed how fear arousing messages would be structured into one of three levels: non-threatening, moderately threatening, and strongly threatening. Two different agent conditions and three message conditions were actually developed and experimentally tested with the participants of 40 undergraduate students. The results showed that the agent design principles specified from the previous research worked well enough to make a distinction between the more credible agent and the less credible agent. The overall results of this study may indicate that the design strategies for fear arousing message are retained on the premise of some future refinements.

An Agent-based Initial Design System in Distributed Environment using CORBA (분산환경에서 CORBA를 이용한 에이전트기반 초기설계 시스템)

  • 이동욱;이수홍
    • Korean Journal of Computational Design and Engineering
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    • v.5 no.4
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    • pp.373-379
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    • 2000
  • This paper deals with the study of distributed design system and the implementation of JAVA based initial design system using CORBA/sup [1-3]/. In the state of initial design, designer should consider other information related to a design part. In this case, designer has a difficult problem to search and calculate distributed data. We propose a special connector named ‘Allocator’and implement an initial design system AIDS(Agent based Initial Design system). AIDS can help designer search and calculate the distributed information. In this study, JAVA and CORBA were chosen for handling network and distribute programming. AIDS focuses on the possibility of incremental concurrent design capability. AIDS is comported of Request-Agent, Calculator-Agent, View-Agent, Search-Agent, and ‘Allocator’. The proposed system can be used for designing initial design of a gripper in the web regardless of operating system.

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A Study for agent-based Integration Framework in mobile environment (모바일 환경에서 에이전트를 이용한 설계자원의 통합)

  • 옥형석;이수홍
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1997.10a
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    • pp.193-196
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    • 1997
  • A mobile computing environment has many difference in character from conventional communication over wired network. These include very presents distributed design system based the mobile agent for mobile computing environment. To integrate design resource, we presented ISA(Integration Service Agent, which allows a designer to build integrated application using distributed resources, and to collaborative by exchanging service. Also we propose ICM(XML based Intelligent Connection Manger) using mobile agent. And suggested new intelligent data and process transfer architecture using ICM to implement an agent based design system in mobile environment.

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Development of Agent Module for Pump Design and Performance Analysis Under Distributed and Cooperative Environment (분산, 협업 환경에서의 펌프 설계/해석을 위한 Agent 모듈 개발)

  • Choi, Bum Seog;Kim, Myung Bae;Park, Moo Ryong;Lee, Kong Hoon
    • 유체기계공업학회:학술대회논문집
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    • 2004.12a
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    • pp.711-714
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    • 2004
  • A project to develop internet based collaborative engineering environments using agent technology is started to develop an agent based soft system for design and performance analysis of centrifugal pumps. This paper introduces the feasible technology needed to construct a pump design system based on software agent.

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Modeling and Design of Intelligent Agent System

  • Kim, Dae-Su;Kim, Chang-Suk;Rim, Kee-Wook
    • International Journal of Control, Automation, and Systems
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    • v.1 no.2
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    • pp.257-261
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    • 2003
  • In this study, we investigated the modeling and design of an Intelligent Agent System (IAS). To achieve this goal, we introduced several kinds of agents that exhibit intelligent features. These are the main agent, management agent, watcher agent, report agent and application agent. We applied the intelligent agent concept to two different application fields, i.e. the intelligent agent system for pattern classification and the intelligent agent system for bank asset management modeling.

Application of Optimal Design Method to Agent Discharge Flow Calculation of Gaseous Fire Extinguishing Systems (최적설계법을 응용한 가스계 소화설비의 약제방출량 산출)

  • Lee, Dong-Myung
    • Fire Science and Engineering
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    • v.29 no.5
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    • pp.51-56
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    • 2015
  • In this study, optimal design methods were applied to the agent discharge flow of clean agent fire extinguishing systems. The methods combined optimal design theory and engineering theory for engineering analysis in a design program or coast savings in value engineering. Optimal design parameters were determined to optimize the agent discharge flow based on the design theory of the clean agent fire extinguishing systems and the theory of optimal design. The design factors were verified in regard to suitability for the performance of fire extinguishing systems. The results provide a foundation for optimal design method methods in other fire extinguishing systems. Optimization of the agent discharge flow of the discharge nozzle was confirmed by the constraints on the inner diameter of the discharge nozzle and the pipe, agent arrival time, flow, and pressure variation of the agent. The deviation of discharge pressure and agent time of the agent discharge nozzle were found to correlate with the pressure variation.

Agent-based Collaborative Design Environment using WWW (WWW을 이용한 에이전트 기반 공동 설계 환경 개발)

  • 안상준;이수홍
    • Korean Journal of Computational Design and Engineering
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    • v.3 no.1
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    • pp.31-39
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    • 1998
  • This paper deals with a development of the system that implements a collaborative design environment with some intelligent agents on the m. Intelligent agents can design collaboratively trough an interchange of messages in their special domains. Such a collaborative design of agents is achieved on the WWW. In this paper, we propose special agents named intercessor and DCM (Dynamic Connection Manager) and suggest new connection architecture using these agents in the WWW in order to improve the pre-existed agent connection architecture. The proposed agents are developed using Java language and JATLite API. We apply the these agents to the new architecture and show some possibilities that the agent connection architecture can be extended in the WWW Agents interchange messages with others using KOML (Knowledge Query and Manipulation Language), agent communication protocol and language, and deal with message autonomously according to their rule base. Agents register and connect dynamically trough the intercessor agent, and infer from their.

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Agent-based approach for the construction of a design support system for conceptual chemical process synthesis

  • Han, Chonghun;Stephanopoulos, George
    • 제어로봇시스템학회:학술대회논문집
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    • 1995.10a
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    • pp.328-331
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    • 1995
  • A successful, computer-aided design support system can help a process designer focus on making effective design decisions, not merely tedious routine calculations. Such a system is essential to enhance quality of design in terms of economics, environmental benignity, reliability, robustness, and operability. Such a statement is even more accepted when applied to conceptual design problems, where gross design specifications are given while a combinatorial number of design alternatives exists. This paper presents an agent-based approach as a systematic and efficient way to design a design support system for the synthesis of conceptual chemical processes. An agent-based approach allows us to handle design knowledge as an object and thus greatly improve the modularity and reusability of that knowledge. Such modularity and reusability lead to the increased productivity in the development of a design support system and the increased ease in the relaxation of design decisions and the generation of design alternatives, both of which functions are critically important in dealing with the complexity and uncertainty of conceptual design problems.

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