• Title/Summary/Keyword: Knowledge Agent

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The Crisis and Challenges in the Agricultural Research and Extension in Korea;Agricultural Knowledge System (농업지식체계 접근에 의한 농업연구, 지도 연계를 위한 당면과제)

  • Park, Duk-Byeong;Lee, Min-Soo
    • Journal of Agricultural Extension & Community Development
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    • v.9 no.2
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    • pp.199-213
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    • 2002
  • The purpose of this study uses agricultural knowledge system theory to explore how the extension system in South Korea was developed and have worked well. By agricultural knowledge system we emphasized the dynamic networks of actors, processes of negotiation, and the diverse ways in which knowledge is constructed and performed. It was possible that individuals may participate in and utilize multiple knowledge systems. The knowledge systems reflected the idea that the boundaries between knowledge groups were not closed and that there could be considerable overlap between knowledge systems. The constructions of agricultural knowledge systems thus included social interactions, communication, and the diverse processes individuals employ to create, use, and evaluate multiple types and sources of information. As such, there were six priorities to development agricultural extension system; the linkage between agricultural colleges, Rural Development Administration(RDA), branch of RDA, establishing the research institution of research and extension linkage. exchange research agent with extension agent, developing information technology system, bottom-up approach, the linkage between national project and regional within extension projects, enforcement of informal learning.

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An Improved Domain-Knowledge-based Reinforcement Learning Algorithm

  • Jang, Si-Young;Suh, Il-Hong
    • 제어로봇시스템학회:학술대회논문집
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    • 2003.10a
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    • pp.1309-1314
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    • 2003
  • If an agent has a learning ability using previous knowledge, then it is expected that the agent can speed up learning by interacting with environment. In this paper, we present an improved reinforcement learning algorithm using domain knowledge which can be represented by problem-independent features and their classifiers. Here, neural networks are employed as knowledge classifiers. To show the validity of our proposed algorithm, computer simulations are illustrated, where navigation problem of a mobile robot and a micro aerial vehicle(MAV) are considered.

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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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A Multi-Agent Scheme Considering User's Mobility RFID based on Knowledge Management System (사용자의 이동성을 고려한 멀티 에이전트 방식의 RFID 기반 지식 관리 시스템)

  • Seo, Dae-Hee;Baek, Jang-Mi;Cho, Dong-Sub
    • Journal of KIISE:Information Networking
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    • v.37 no.2
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    • pp.99-108
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    • 2010
  • The Wireless Ad Hoc network is discussed as a core technology for ubiquitous computing, and the smart tag technology is currently being actively discussed as a part of the sensor network. Thus, considering its security may advance the realization of ubiquitous computing. RFID (Radio Frequency Identification) technology using the smart tag technology as a part of the sensor network is currently in the limelight. In particular, when RFID is applied to a knowledge management system managing various data, data mobility and management convenience are ensured and automated knowledge service can be provided to users. Accordingly, this paper to proposed a secure scheme for mobility knowledge management systems using multi-agents differentiated from the existing knowledge management systems. Specifically, the proposed scheme designates user's authentication and privilege information in multi-agents and provides effective knowledge service through grouping based on user information. Moreover, even user's movement, the proposed scheme ensures service availability and provides continuous information through communication with multi-agent systems.

A New Direction and Its Challenges for Linkage of Agricultural Research and Extension As a Traditional Knowledge Development in Rural Korea: Agricultural Knowledge Systems (농업지식체계 구축에 의한 전통지식개발 방법으로서의 농업연구지도 연계의 방향)

  • Park, Duk-Byeong;Kang, Kyeong-Ha;Lee, Min-Soo
    • Journal of Agricultural Extension & Community Development
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    • v.10 no.1
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    • pp.15-29
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    • 2003
  • The study uses agricultural knowledge system theory to explore how traditional knowledge applies to the linkage system of agricultural research and extension in rural Korea. By agricultural knowledge system we emphasize the dynamic networks of actors, processes of negotiation, and the diverse ways in which knowledge is constructed and performed. The knowledge systems reflect the idea that the boundaries between knowledge groups are not closed and that there could be considerable overlap between knowledge system. The results of this study are the following : First, we should know that some extension agents clearly value farmer knowledge and try to facilitate farmer-to-farmer communication. Extension plays a significant role in the knowledge-creation process and shaping communities because knowledge processes are embedded in social processes that involve aspects of power, authority, and legitimization. Third, the constructions of agricultural knowledge systems thus include social interactions, communication, and the diverse processes individuals employ create, use, and evaluate multiple types and sources of information through the linkage between agricultural colleges and Rural Development Administration (RDA), establishing the research institution of research and extension linkage, exchange research agent with extension agent, and bottom-up approach. Second, we should know that the focus of traditional knowledge development is rural community development as a community process. Nowadays the sessions of the Intergovernmental Committee of World Intellectual Property Organization (WIPO) cover two lines of inquiry, which are the use of existing standards of intellectual property for the protection of traditional knowledge and that of new legal standards, eventually in the from of sui generis mechanisms of protection.

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A Knowledge Representation Scheme Formalizing Spatio-Temporal Aspects of Dynamic Situations in Virtual Environments

  • Gebre, Haymanot Alalo;Choi, Jun Seong;Park, Jong Hee
    • International Journal of Contents
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    • v.11 no.1
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    • pp.21-30
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    • 2015
  • A simulated realistic virtual environment is inhabited by autonomous cyber-humans who play the roles of agents in events. A key element, which enables this realism, is the historical context formed by time and space. A knowledge-representation scheme, composed of both spatial and temporal aspects needed by the agent to respond to dynamically changing situations, is essential for the design of a realistic virtual agent. In this work, spatial and temporal aspects of dynamic situations in the virtual environment have been formalized as a key component of our knowledge-representation scheme. This scheme provides a mathematical framework to construct realistic virtual situations that change with time, and background knowledge for agents in the simulated environment to deduce new pieces of information and plan against changing situations.

RBR Based Network Configuration Fault Management Algorithms using Agent Collaboration (에이전트들 간의 협력을 통한 RBR 기반의 네트워크 구성 장애 관리 알고리즘)

  • Jo, Gwang-Jong;An, Seong-Jin;Jeong, Jin-Uk
    • The KIPS Transactions:PartC
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    • v.9C no.4
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    • pp.497-504
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    • 2002
  • This paper proposes fault diagnosis and correction algorithms using agent collaboration, and a management model for managing network configuration faults. This management model is composed of three processes-fault detection, fault diagnosis and fault correction. Each process, based on RBR, operates on using rules which are consisted in Rule-based Knowledge Database. Proposed algorithm selves the complex fault problem that a system could not work out by itself, using agent collaboration. And the algorithm does efficiently diagnose and correct network configuration faults in abnormal network states.

A Novel Approach for Integrating Security in Business Rules Modeling Using Agents and an Encryption Algorithm

  • Houari, Nawal Sad;Taghezout, Noria
    • Journal of Information Processing Systems
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    • v.12 no.4
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    • pp.688-710
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    • 2016
  • Our approach permits to capitalize the expert's knowledge as business rules by using an agent-based platform. The objective of our approach is to allow experts to manage the daily evolutions of business domains without having to use a technician, and to allow them to be implied, and to participate in the development of the application to accomplish the daily tasks of their work. Therefore, the manipulation of an expert's knowledge generates the need for information security and other associated technologies. The notion of cryptography has emerged as a basic concept in business rules modeling. The purpose of this paper is to present a cryptographic algorithm based approach to integrate the security aspect in business rules modeling. We propose integrating an agent-based approach in the framework. This solution utilizes a security agent with domain ontology. This agent applies an encryption/decryption algorithm to allow for the confidentiality, authenticity, and integrity of the most important rules. To increase the security of these rules, we used hybrid cryptography in order to take advantage of symmetric and asymmetric algorithms. We performed some experiments to find the best encryption algorithm, which provides improvement in terms of response time, space memory, and security.

Development of HTMLtoVTML Conversion Agent using Embedded Text and Priori Structural Knowledge (내장 문자와 사전 구조 지식을 이용한 HTMLtoVXML 변환 에이전트 개발)

  • Jang, Young-Gun
    • The KIPS Transactions:PartD
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    • v.10D no.2
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    • pp.343-350
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    • 2003
  • This paper presents a new agent which convert HTML contents to VXML contents automatically for voice services via web. In this paper, I propose an interactive hybrid sequential contents selection method to select desired contents fast and robustly from known web pages. It uses real time structural features as well as embedded text and/or priori structural knowledge such as link symbol position. To verify its effectiveness, a full agent system is implemented and tested. The method reflects user intention more accurately than conventional selections using structural features and is more robust to variations of HTML programming techniques. The agent is fast and has less computational burden than methods use XML or XHTML conversion as intermediate stage.