• Proceedings of the Korean Society of Precision Engineering Conference
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• 2001.04a
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• pp.627-630
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• 2001

XML is suitable to integrate various forms of engineering design data since it possesses the characteristics of both documents and data. In this research a web-based design system has been developed, which integrates various gear design data in the form of XML. The system generates XML document containing gear design data and transforms gear design data in the relational database into XML document form automatically. The XML documents are transmitted to gear modeler agent through SOAP, and then the agent is automatically executed and generates CAD model files and VRML files. The designer can check the generated VRML model of gear immediately in the web service.

• The KIPS Transactions:PartB
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• v.9B no.4
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• pp.399-406
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• 2002

The goal of this research has been to develop an adaptive user agent for web surfing. To achieve this goal, the research has concentrated on three issues: collection of user data, construction and improvement of user profile, and adaptation by applying the user profile. The main outcome from the research is a prototype system that provides the functional definition and componential design scheme for an adaptive user agent for the web environment. Internally, the system achieves its operational goal from the cooperation of two independent agents. They are IIA (Interactive Interface Agent) and UPA (User Profiling Agent). As a tool for providing a user-friendly interface environment, the IIA employs the Keyword Index, which is a list of index terms of a webpage as well as a keyword menu for subsequent queries, and the Suggest Link, which is a hierarchical list of URLs showing the past browsing procedure of the user. The UPA reflects in the User Profile, both the static and the dynamic information obtained from the user's browsing behavior. In particular, a user's interests are represented in the form of Interest Vectors which, based on the similarity of the vectors, is subject to update and creation, thus dynamically profiling the user's ever-shifting interests.

• Journal of Internet Computing and Services
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• v.3 no.1
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• pp.61-69
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• 2002

Big-bang growth of Internet and World Wide Web is supplying much information and resources to network. However, use of internet resources is receiving many limitations by bandwidth for most users. But, through Applet way, can solve degradation problem that follow on static side and bandwidth of CGI that HTML has. Mobile Agent starts in user's computer to accomplish user's specification purpose and achieves work rooving network. Because code that can perform so is transmitted, and is achieved in network through network, important problem happens to mobile code's security naturally. In computing environment that this research uses this Mobile Agent way that can protect host and agent groping report, describe problem that happen composing Mobile Agent relationship concept and Mobile Agent, and do so that may present method that is studying to solve these problem, and use method that application is possible actually among presented method and design transfer agent's security system.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10b
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• pp.247-249
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• 2004

그동안 planning 분야에서는 action 또는 plan이 epistemically feasible한지에 대한 Knowledge Preconditions(KP) 문제(1)를 다루기 위해 여러 연구들이 제안되었다. 하지만 기존 연구에서는 feasibility에 대한 검사를 design-time에만 수행하며 run-time에서 수행하지 않기 때문에 여러 agent의 트랜잭션들이 발생하는 웹서비스 조합(WSC : Web Services Composition)에서는 문제가 발생하게 된다. 따라서 본 논문에서는 이 문제(Interfering Agent Problem)를 해결하기 위해 transactionally feasible한 WSC를 정의하고 WSC의 atomicity를 보장하기 위한 방법을 제안한다. 뿐만 아니라 WSC를 표현하기 위해 Description Logics기반의 TL-ALCF(2)를 적용하여 시맨틱 웹의 온톨로지(OWL-S)와 성능이 좋은 기존 subsumption 프로시저를 그대로 이용할 수 있도록 한다.

• 제어로봇시스템학회:학술대회논문집
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• 2001.10a
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• pp.146.1-146
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• 2001

The researches of science and engineering need the latest information from internet resources. But searching and filtering processes of appropriate web documents from huge internet resources are very complex as well as having some repeated procedures. In this paper, I propose a Personalized Agent System(PAS), which can filter World Wide Web Documents that the user is interested, such as papers. To do this, PAS uses a modified spreading activation neural network which 1 propose here. PAS observes the user´s local paper database to analyze, adapt and learn the user interests, and the then constructs the user-specified neural network model by the analyzed interests ...

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2002.11a
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• pp.336-341
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• 2002

현재 연구개발 중인 웹 정보 에이전트는 Agent Manager와 KB Manager. Web Manager로 구성되어 있다. 이 시스템은 동물영역에 관련된 정보를 영어로 서비스하고 있어 국내 접근보다는 외국에서의 접근이 더 많았다. 그러므로 국내 사용을 높이기 위해 애완용 동물을 위주로 한 정보추출(IE)을 수행하여 지식베이스(KB)의 확장을 시도하고 있다. 이를 위하여 태그(tag) 및 심볼(symbol)의 패턴(pattern) 유사성 정보를 찾아내고, 기존 KB와 연계하여 KB의 확장 및 수정에 이용하기 위한 유효 정보 패턴 결정에 활용함으로써 정보 추출의 새로운 방법을 고찰하고 그 가능성을 제시하고자 한다.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 1999.10a
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• pp.269-279
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• 1999

본 연구는 Web상에서 원격 협력 학습을 위한 수준별 학습자 모집 스케줄링 에이전트의 설계와 구현에 관해 제안한다. 본 시스템의 구조는 원격 교사 모듈과 여러 명의 학습자, 그리고 이를 연결해 주는 스케줄링 Agents, 학습자를 진단할 수 있는 진단 Agent로 구성된다. 컴퓨터가 분산환경으로 발전됨에 따라서 교육의 변화도 가속화되었고, 지식의 공유와 정보의 공유가 원격 협력학습에 의하여 절실히 필요하게 되었다. 원격 협력 학습에서의 학습자는 동일한 과목과 주제에 흥미를 느끼는 여러 명의 아동이 동시에 학습할 수 있는 상황이 필요하며, 선행 지식 또한 비슷한 수준이어야 동일한 주제로 학습의 효과가 있다. 이런 학습자를 판단하기 위해서 진단 Agent가 학습자를 진단하며 스케줄링 Agents의 학습자 지식에 추가한 후 스케줄링 Agents가 학습자의 기본 사항과 요구 내용을 추론하여 비슷한 수준의 학습자를 연결한다. 교사 모듈은 전통적인 ITS의 구조의 교수 학습 모듈, 전문가모듈로 구성되어 교수 학습을 할 수 있다. 이렇게 여러 명의 학습자를 연결하여 협력학습을 하기 위해서는 학습자간의 요구사항과 지식 수준 그리고 학습 가능한 시간이 같아야 하는데 이를 위해 시간을 자원으로 하는 동적 자원 스케줄링(Dynamic Resource Scheduling)으로 모델링 하였다. 본 연구에서 도형학습을 기반으로 하는 실험을 통해 구현한 원격 협력학습을 위한 지능형 스케줄링 에이전트를 평가하였다.

• The Journal of Korean Association of Computer Education
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• v.3 no.1
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• pp.169-176
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• 2000

This paper presents ENIG Agent can gather distributed educational newspaper information in the web as well as provide teachers and student those information for the NIE. ENIG Agent gleans newspaper headline of appropriate educational news portal site for real-time provision of those information. The optimized extraction of headline is performed through the pre-process of educational news site, information noise filtering, pattern matching. The educational newspaper headline information that is gotten through previous process will be shown to students by web-browser. To increase the usage of those information, intelligent education methods and visualized classification techniques are used. By experiment, the performance of this ENIG Agent was evaluated.

• Korean Journal of Cognitive Science
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• v.13 no.4
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• pp.1-8
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• 2002

As Internet grows, many web sites have been built, therefore much information has been registered. Because the web sites have more information, it is more difficult that the user can find the information wanted. Therefore, to get information that user wants easily, the full-text engine may be embedded to the web site. This paper is about developing the help conversational agent for a user to find the information that he wants through conversation with agent. The proposed method is based on the pattern matching of artificial intelligence, not natural language processing. If a user inputs any sentence, the help conversational agent responds to the sentence through preprocessing and pattern matching with knowledge. The knowledge is built with the XML format. With the approximate pattern matching, the agent picks up the appropriate response with some degree of similarities. At the experiment, some different sentences with the same meaning have been entered, then the agent recognized them as the same pattern, and it made a correct answer.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.10
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• pp.1885-1890
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• 2006

Because of the rapid development of information technology and easiness in using internet, Web becomes indispensible utility in every day life and various information has been shared in internet. However, caused by the flood of information in the Web, the skill of acquiring required information with easy becomes one of the most urgent on utilizing internet. As a solution fur the requirement, Semantic Web, which upgrades present web technology by using semantic skills, has been researched actively ud Ontology is regarded as the basis of constructing semantic web system. The aim of this research is on developing agent using ontology skills for botanic resources. Moreover, the system can be used for developing and accumulating various resources effectively.