• Title/Summary/Keyword: Multi- agent System

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Conceptual Design of Multi-Agent System for Microgrid (마이크로그리드 환정에서 다중 에이전트 시스템 설계)

  • Lim, Yujin;Kim, Hak-Man;Yoo, Hyeong-Jun
    • Proceedings of the Korea Information Processing Society Conference
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    • 2012.04a
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    • pp.892-893
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    • 2012
  • 마이크로그리드 (microgrid)의 성능을 최적화하기 위해서는 마이크로그리드를 구성하는 분산 시스템간 협력적인 제어 기능이 요구된다. 멀티 에이전트 (multi-agent) 시스템은 이러한 마이크로그리드의 분산 제어를 위한 해결책 중 하나이다. 본 논문에서는 중앙 집중방식 멀티에이전트 시스템을 기반으로 마이크로그리드의 효율적인 제어를 위한 시스템을 설계하였다.

Multi-Agent Systems: Effective Approach for Cancer Care Information Management

  • Mohammadzadeh, Niloofar;Safdari, Reza;Rahimi, Azin
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.12
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    • pp.7757-7759
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    • 2013
  • Physicians, in order to study the causes of cancer, detect cancer earlier, prevent or determine the effectiveness of treatment, and specify the reasons for the treatment ineffectiveness, need to access accurate, comprehensive, and timely cancer data. The cancer care environment has become more complex because of the need for coordination and communication among health care professionals with different skills in a variety of roles and the existence of large amounts of data with various formats. The goals of health care systems in such a complex environment are correct health data management, providing appropriate information needs of users to enhance the integrity and quality of health care, timely access to accurate information and reducing medical errors. These roles in new systems with use of agents efficiently perform well. Because of the potential capability of agent systems to solve complex and dynamic health problems, health care system, in order to gain full advantage of E- health, steps must be taken to make use of this technology. Multi-agent systems have effective roles in health service quality improvement especially in telemedicine, emergency situations and management of chronic diseases such as cancer. In the design and implementation of agent based systems, planning items such as information confidentiality and privacy, architecture, communication standards, ethical and legal aspects, identification opportunities and barriers should be considered. It should be noted that usage of agent systems only with a technical view is associated with many problems such as lack of user acceptance. The aim of this commentary is to survey applications, opportunities and barriers of this new artificial intelligence tool for cancer care information as an approach to improve cancer care management.

A Method of Efficient Task Execution by Integrating Plan Rules in Multi-Agent Systems (계획 규칙의 통합을 통한 멀티 에이전트 시스템의 효율적인 작업 수행 방법)

  • Park, Jung-Hoon;Choi, Joong-Min
    • Journal of KIISE:Software and Applications
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    • v.27 no.8
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    • pp.834-845
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    • 2000
  • Most agents are associated with plan rules for their tasks when they are created. In a multi-agent system in which many agents are interacting, the direct use of predefined plan rules of each agents may slow down the system due to the lack of recognition of the relationship among plan rules of the agents. In order to overcome this, we need to analyze and integrate the agent's plan rules to facilitate concurrent rule execution. This paper proposes a method that integrates and executes local plan rules of task agents in a multi-agent environment. The results of the integration are represented in a network structure. For domain task execution, a task agent collects other task agents' plan rules and builds an integrated domain network, which is exploited to achieve the goal. The agent problem solving by using the domain network enables not only the concurrent plan execution but the solution of coordination problems.

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A study of design the agent system for management and service of S&T information (학술정보 관리 및 유통을 위한 에이전트 시스템 설계에 관한 연구)

  • Lee, Seok-Hyoung;Yoon, Hee-Jun;Yoon, Hwa-Mook
    • Proceedings of the Korea Contents Association Conference
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    • 2006.05a
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    • pp.503-506
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    • 2006
  • In this paper, we suggest the Agent System for management and service of science and technology information that performs the collection, analyzing, processing and managing the information. Generally, any system can process the collection and service the information as usual method, but that mean can't be clear because of the data process method on different systems of hardware and software. So, it's very important point that the design and development of S&T information flow framework that can accept the various data, and we expect that the agent system adapted in framework guarantee the reduction of man power and process time and the enlarged system. Agent System consists of five multi agents, Resource Format Register Agent, Data Collector Agent, Data Analyzer Agent, Data Processor Agent and MetaDB Creator Agent. We describe the main roles and elements of agent systems.

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A Hypertension Management Healthcare System in Mobile Environment (모바일 환경에서의 고혈압관리 헬스케어 시스템)

  • Lee, Mal-Rey;Kim, Eun-Gyung;Lee, Jae-Wan;Zang, Yu-Peng
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.14 no.3
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    • pp.552-558
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    • 2010
  • This is an example of ABSTRACT format. This study proposes a hypertension management system that implements a signal collision avoidance algorithm for RFID tags and enables accurate medical services for hypertension patients. The proposed system enables the mobile RFID reader to accurately recognize the RFID tag signals emitted from the patient by using OR logic. Moreover, the system adopts a multi-agent approach to provide and manage information on patient condition and automated medical service in a mobile environment.

Research of soccer robot system strategies

  • Sugisaka, Masanori;Kiyomatsu, Toshiro;Hara, Masayoshi
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.92.4-92
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    • 2002
  • In this paper, as an ideal test bed for studies on multi-agent system, the multiple micro robot soccer playing system is introduced at first. The construction of such experimental system has involved lots of kinds of challenges such as sensors fusing, robot designing, vision processing, motion controlling, and especially the cooperation planning of those robots. So in this paper we want to stress emphasis on how to evolve the system automatically based on the model of behavior-based learning in multi-agent domain. At first we present such model in common sense and then apply it to the realistic experimental system . At last we will give some results showing that the proposed approach is feasi...

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Constructing Landscape as an Operational Multi-Environmental Control Utility and Green Infrastructure - Landscape Design for National Marine Biology Resource Institute - (작동하는 복합환경조절장치 및 녹색기반시설로서 조경 - 국립해양생물자원관 옥외공간 설계 -)

  • Sung, Jongsang
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.15 no.2
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    • pp.41-56
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    • 2012
  • Landscape space can and should play as a multi-functional agent : healing contaminated soil, reducing natural hazards, supporting living things, making comfortable environment for human, and appealing to human aesthetics, etc. This article aims to show the possibility and role of landscape space as such agent. In landscape design for National Marine Biology Resource Institute, distributed rain water treatment system and rain gardens are introduced to replace a mono-functioning large detention pond which was suggested by disaster impact assesment. Phytoremediation and vegetation filtering system with muti-cell wetlands are also adapted to heal the contaminated soil. This kind of landscape as a 'living machine' which can play as an operational control utility of multi-environment and thus can be combined effectively into green infrastructure is important for post-industrial city, especially in an era of climate change.

An Efficient Multi-Attribute Negotiation System using Learning Agents for Reciprocity (상호 이익을 위한 학습 에이전트 기반의 효율적인 다중 속성 협상 시스템)

  • Park, Sang-Hyun;Yang, Sung-Bong
    • The KIPS Transactions:PartD
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    • v.11D no.3
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    • pp.731-740
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    • 2004
  • In this paper we propose a fast negotiation agent system that guarantees the reciprocity of the attendants in a bilateral negotiation on the e-commerce. The proposednegotiation agent system exploits the incremental learning method based on an artificial neural network in generating a counter-offer and is trained by the previous offer that has been rejected by the other party. During a negotiation, the software agents on behalf of a buyer and a seller negotiate each other by considering the multi-attributes of a product. The experimental results show that the proposed negotiation system achieves better agreements than other negotiation agent systems that are operated under the realistic and practical environment. Furthermore, the proposed system carries out negotiations about twenty times faster than the previous negotiation systems on the average.

Rule-based Fault Detection Agent System for Fault Detection and Location on LAN (LAN 상의 장애 검출 및 위치 확인을 위한 규칙 기반 장애 진단 에이전트 시스템)

  • Jo, Gang-Hong;An, Seong-Jin;Jeong, Jin-Uk
    • The Transactions of the Korea Information Processing Society
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    • v.7 no.7
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    • pp.2169-2178
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    • 2000
  • This paper proposes the structure of an agent and rules for fault detection and location on LAN. To find out a reason of critical fault incurred LAN, collision detection rule, error detection rule, broadcast detection rule, system location rule, and Internet application location rule ar shown. Also, the structure of multi-agent system and state transition diagram is portrayed to have connectivity with he set of rules. To verify availability of proposed rules, the process to find a faulty system is shown by monitoring and analyzing the LAN fault occurrences from the proposed set of rules. Such an rule based agent system is helpful to an Internet manager to solve a reason of fault and make ad decision from gathering management information.

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Agent-Based Distance Relaying Algorithm for Phase-to-Ground Faults (에이전트 환경에서의 1선지락 거리계전 알고리즘)

  • Hyun, Seung-Ho;Jin, Bu-Gun;Lee, Seung-Jae
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.56 no.11
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    • pp.1885-1891
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    • 2007
  • This paper presents a distance relaying algorithm for phase-to-ground faults in transmission lines under Multi-Agent protection environment. In normal condition, a distance relay agent stores the latest states, e.g., voltage of source side, voltage of the opposite side and the loading conditions, etc., through communication between the agents. Once a fault occurs, the relay calculates the fault location using the knowledge about the states just before the fault happens. This stand-alone operation is to improve reliability under the fault condition at which the accuracy or time required for communication may not be guaranteed. The mathematical expression of fault location is derived through loop analysis, before hand, in the manner that both fault current from the opposite end and fault resistance are included implicitly so that their effects are minimized. The suggested algorithm is applied to a typical transmission system with two power sources on both ends to show its effectiveness.