• 대한전기학회논문지
• /
• 제43권2호
• /
• pp.179-188
• /
• 1994

This paper deals with implementation of an expert system to obtain an optimal plan of load transfer for fault restoration with the capability of security monitoring and assessment in distribution systems. Based on the technique of load transfer tree analysis, the proposed expert system can afford to assist system operators in proposing an optimal plan of load transfer for fault restoration, In paticular, an application of the proposed ES to practical distribution systems yields an optimal load transfer plan which ensures system security by considering security assessment for contingency of feeders and main transformers in the knowledge based sense.

• 대한산업공학회지
• /
• 제16권1호
• /
• pp.123-135
• /
• 1990

An extensive survey is carried out on the applications of AI (Artificial Intelligence) and ES (Expert System) in mathematical programming and simulation, which are the most frequently used tools in production planning. A scheduling field is also reviewed. The scheduling problem is one of the most attractive area for AI and ES researchers, since any practical algorithmic solution methods are not available. The current practice and difficulty of applying AI and ES to production planning are discussed and future research directions are identified.

• 물과 미래
• /
• 제23권4호
• /
• pp.477-486
• /
• 1990

지하수 오염처리에 관한 문제는 수공학 이외에도 지질학, 화학, 독극물학 등의 전문지식이 요구된다는 점에서 Expert System(이하 ES)가 설계되기에 이상적인 환경을 지니고 있는 분야이다. 본 연구의 목적은 오염물질로 오염된 지하수의 처리에 대한 조언과 그것에 대한 추적을 위한 소프트웨어의 개발에 있다. Prolog 언어를 사용하여 개발된 이 프로그램은 현장 실무자에게 독극성의 정도와 화학반응의 축연성, 특정지점의 농도계산을 통하여 현 상황에 대한 심각성의 정도와 대응책을 조언하게 된다.

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 1989년도 한국자동제어학술회의논문집; Seoul, Korea; 27-28 Oct. 1989
• /
• pp.744-748
• /
• 1989

A newly developed Expert System (ES) for the tuning of thermal power plant control equipment is described. The system is furnished with the rules for controller tuning which were obtained by analysis and arranging the data and knowledge from the experts or tuning records. Based on these rules, automatic tuning or setting of the control parameters is performed in real-time base. The performance of the test equipment, a combination of ES and a boiler simulator, was examined in the automatic tuning test for steam pressure, steam temperature, and load controllers of a constant-pressure once-through boiler model. It was confirmed from the test results that the system is quite promising for future application to actual plants, since the tuning results obtained by the proposed system were similar to those by tuning experts.

• 전기의세계
• /
• 제41권4호
• /
• pp.59-63
• /
• 1992

ES는 절연설계, 계측, 시험, 절연진단, 재료선택지원의 각 분야에서 응용되어지고 있으며, 응용의 확대가 되어질 전망이다.

• Computers and Concrete
• /
• 제9권2호
• /
• pp.99-118
• /
• 2012

Marine Structures are very costly and need a continuous inspection and maintenance routine. The most effective way to control the structural health is the application of an expert system that can evaluate the importance of any distress on the structure and provide a maintenance program. An extensive literature review, interviews with expert supervisors and a national survey are used to build a decision support system for concrete structures in sea environment. Decision trees are the main rules in this system. The system input is inspection information and the system output is the main cause(s) of distress(es) and the best repair method(s). Economic condition, severity of distress, distress situation, and new technologies and the most repeated classical methods are considered to choose the best repair method. A case study demonstrates the application of the developed decision support system for a type of marine structure.

• 한국지능시스템학회:학술대회논문집
• /
• 한국퍼지및지능시스템학회 2005년도 춘계학술대회 학술발표 논문집 제15권 제1호
• /
• pp.153-156
• /
• 2005

In this paper, a framework for implementing UFIS (Unified Fuzzy rule-based knowledge Inference System) is presented. First, fuzzy clustering and fuzzy rules deal with the presence of the knowledge in DB (DataBase) and its value is presented with a value between 0 and 1. Second, RDB (Relational DB) and SQL queries provide more flexible functionality fur knowledge management than the conventional non-fuzzy knowledge management systems. Therefore, the obtained fuzzy rules offer the user additional information to be added to the query with the purpose of guiding the search and improving the retrieval in knowledge base and/ or rule base. The framework can be used as DM (Data Mining) and ES (Expert Systems) development and easily integrated with conventional KMS (Knowledge Management Systems) and ES.

• 한국경영과학회:학술대회논문집
• /
• 대한산업공학회/한국경영과학회 2004년도 춘계공동학술대회 논문집
• /
• pp.9-12
• /
• 2004

Developing an efficient knowledge base construction mechanism as an input method for expert systems (ES) development is of extreme importance due to the fact that an input process takes a lot of time and cost in constructing an ES. Most ES require experts to explicit their tacit knowledge into a form of explicit knowledge base with a full sentence. In addition, the explicit knowledge bases were composed of strict grammar and keywords. To overcome these limitations, this paper proposes a knowledge conceptualization and construction mechanism for automated knowledge acquisition, allowing an efficient decision. To this purpose, we extended traditional knowledge map (KM) construction process to dynamic knowledge map (DKM) and combined this algorithm with relational database (RDB). In the experiment section, we used medical data to show the efficiency of our proposed mechanism. Each rule in the DKM was characterized by the name of disease, clinical attributes and their treatments. Experimental results with various disease show that the proposed system is superior in terms of understanding and convenience of use.

• 한국지능시스템학회:학술대회논문집
• /
• 한국퍼지및지능시스템학회 2004년도 춘계학술대회 학술발표 논문집 제14권 제1호
• /
• pp.111-114
• /
• 2004

Management of human knowledge is an interesting concept that has attracted the attention of philosophers for thousands of years. Artificial intelligence and knowledge engineering has provided some degree of rigor to the study of knowledge systems and expert systems(ES) re able to use knowledge to solve the problems and answer questions. Therefore, the process of conceptualization and inference of knowledge are fundamental problem solving activities and hence, are essential activities for solving the problem of software ES construction Especially, the access to relevant, up-to-date and reliable knowledge is very important task in the daily work of physicians and nurses. In this study, we propose the conceptualization and inference mechanism for implicit knowledge management in medical diagnosis area. To this purpose, we combined the dynamic knowledge map(KM) and relational database(RDB) into a dynamic knowledge map(DKM). A graphical user-interface of DKM allows the conceptualization of the implicit knowledge of medical experts. After the conceptualization of implicit knowledge, we developed an RDB-based inference mechanism and prototype software ES to access and retrieve the implicit knowledge stored in RDB. Our proposed system allows the fast comfortable access to relevant knowledge fitting to the demands of the current task.

• 한국문헌정보학회지
• /
• 제32권2호
• /
• pp.211-232
• /
• 1998

본 연구의 목적은 직면하고 있는 기술과 시스템 환경변화에 적합한 정보전문가 양성을 위한 문헌정보학 교육의 내용을 규명해보는데 있다. 그 중에서 현재 정보환경 변화에 따라 요구되는 최신정보기술인 인공지능과 전문가시스템이 필요함을 인식하여 인공지능과 전문가시스템의 어떤 교육내용이 문헌정보학에 도입해야 할 것인가에 대한 해결방안을 모색하고 기본적 자료를 얻어내는데 그 목적이 있다. 본 연구 결과에 따른 내용을 정리하면 다음과 같다. 첫째, 고도의 정보기술과 컴퓨터의 발전으로 인하여 문헌정보학의 전통적인 핵심내용이 새로운 내용 즉 네트워크를 통한 정보원 탐색, 온라인데이터베이스 검색, 정보시스템 분석과 설긴 컴퓨터활용능력, 정보검색전략 개발순으로 나타났다. 둘째. 인공지능과 전문가시스템 교육내용 중에서 문헌정보학 교육에 중요한 내용으로는 데이터베이스처리 시소러스 자연언어처리, 지식표현으로 나타났다. 셋째, 문헌정보학 교수들은 인공지능과 전문가시스템 교과목 주제가 대다수 학생들에게 유용한 주제라고 인식하고 있음이 나타났다. 넷째, 앞으로 사서/정보전문가를 돕는 인공지능과 전문가시스템의 역할이 참고봉사, 편목${\cdot}$ 분류, 정보검색${\cdot}$ 문헌전달 업무에서 더 중요하게 인식하고 있음이 나타났다. 다섯째, 문헌정보학과 교수들이 인공지능과 전문가시스템 교과목 주제를 중요하게 인식함에 따라 앞으로 인공지능과 전문가시스템 교육과정이 국내 문헌정보학 교육과정에 개설될 것으로 나타났으며 인공지능과 전문가시스템 교육내용 중에서 중요하다고 조사된 데이터베이스처리. 시소러스 자연언어처리. 지식표현의 과목은 앞으로 문헌정보학 교육과정에 도입하여야 할 것이다.