• 대한기계학회:학술대회논문집
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• 대한기계학회 2003년도 춘계학술대회
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• pp.195-200
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• 2003

An expert system for estimation of fatigue properties from simple tensile data of material is developed, considering nearly all important estimation methods proposed so far, i.e., 7 estimation methods. The expert system is developed using an expert system shell, UNIK, and the knowledge base is constructed with production rules and frames. Forward chaining is employed as a reasoning method. The expert system has three major functions including the function to update the knowledge base. The performance of the expert system is tested using the 54 ${\sigma}-N$ curves consisting of 381 ${\sigma}-N$ data points obtained for 22 materials. It is found that the expert system developed has excellent performance especially for steel materials, and reasonably good for titanium alloys.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2001년도 춘계학술대회논문집A
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• pp.114-119
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• 2001

An expert system for estimation of fatigue properties from simple tensile data of material is developed, considering nearly all important estimation methods proposed so far, i.e., 7 estimation methods. The expert system is developed to utilize for the case of only hardness data available. The knowledge base is constructed with production rules and frames using an expert system shell, UNIK. Forward chaining is employed as a reasoning method. The expert system has three major functions including the function to update the knowledge base. The performance of the expert system is tested using the 54 $\varepsilon$-N curves consisting of 381 $\varepsilon$-N data points obtained for 22 materials. It is found that the expert system developed has excellent performance especially for steel materials, and reasonably good for aluminum alloys.

• 한국화재소방학회논문지
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• 제3권3호
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• pp.9-13
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• 1989

This paper realizers expert system which is searched most suitable system of the fire facilities by regulating of fire operating order And so, the user finds the inference, heuristic knowledge of the expert who has a mastery of application of the fire code objected protection, warning or extinguishing of fire. Although some expert systems utilize artificial intelligence such as LISP or PROLOG, this study utilizes M.1 that is available expert system development tool running with personal computer.

• 대한조선학회지
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• 제26권4호
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• pp.35-43
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• 1989

전문가시스템은 인공지능 연구의 한 분야로서 인간전문가가 가지고 있는 전문지식을 컴퓨터에 표현하여 컴퓨터로 하여금 문제해결 능력을 갖도록 한 컴퓨터 프로그램이다. 선박 설계 작업은 설계전문가의 전문지식과 경험이 매우 중요하므로, 선박 설계를 위한 전문가시스템을 구성하여 이를 이용한다면 설계 작업의 효율성이 매우 증가할 것이다. 본 연구에서는 전문가시스템의 특성을 파악 하였고, SWATH선의 수직안정성을 평가할 수 있는 Prototype 전문가시스템을 개발하였다.

• 한국정보시스템학회지:정보시스템연구
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• 제1권
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• pp.95-109
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• 1992

A number of success story about various application areas including manufacturing, accounting, finance, education, and engineering are reported. MIS professionals predicted that expert systems would improve the productivity enormously. However, the expert system revolution has not happened yet. Although not reported in the open society widely, there are failure stories of expert systems. Most of problems concerning expert system failure stem from the non-technical issues such as cognitive and psychological problems rather than the technical issues. We hypothesize that human factor principle enables designers to handle most of these non-technical problems elegantly and to improve the performance and acceptance of the expert systems. Major reasons for expert system failure and needs of human factors are discussed. Human factor guidelines to expert system make the prospects of the expert systems with human factors clear and understandable.

• Journal of Ship and Ocean Technology
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• 제3권2호
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• pp.27-48
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• 1999

The paper is concerned with application to develop the expert system, which structural analysis and design process for tower cranes. The system is organized into three groups. One is pre-processor for creating input data files, another is `model former' which combines knowledge-base with inference engine for automatic generating structural analysis models, a third is application group for final analysis checks. In this study, geometric subroutine of `model former' designates node positions, nodes, elements numbers and element types. Load data subroutine computes weight of tower crane and device, slewing force, cargo load, wind force form rules or equations in knowledge-base. Also, Property and boundary subroutine applies element properties and boundary conditions to suitable elements and nodes. Design and analysis expert system for tower crane integrates these subroutine, `model former' and pre-processor. RBR(Rule-Base Reasoning) was adopted for a reasoning strategy of this expert system. And this expert system can produce structural analysis model and data, which can be used in ordinary structural analysis program (SAP, ADINA or NASTRAN, etc.). In this paper, this expert system produces format of the analysis model data, which are used in MSC/NASTRAN. The main discussions included in the paper are introduction of the tower crane and structural analysis, composition of the design expert system for tower crane and structural analysis using the expert system.

• 한국전자거래학회지
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• 제9권3호
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• pp.191-205
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• 2004

은행 등과 같이 고객의 서비스를 중요시하는 산업에서는 고객 만족도 향상을 위하여 eCRM(e-Customer Relationship Management)의 개념 도입이 촉진되고 있다. 이러한 고객의 만족도 향상을 위한 방안으로 본 연구에서는 은행의 금융상품 추천업무를 대상으로 전문가시스템을 이용한 eCRM 구축에 대하여 검토를 실시하였다. 이를 위하여 먼저 전문가시스템을 활용한 eCRM 시스템의 아키텍처를 제시하였고, 고객에게 금융상품 추천을 위한 전문가시스템 프로토타입을 개발하였다. 본 연구에서 제시된 금융상품추천 전문가시스템을 활용한 e-CRM시스템은 고객에게는 보다 양질의 금융 서비스를 제공하게 되며, 은행에서는 고객에 대한 보다 정확한 정보 수집이 용이하게 된다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 춘계학술대회 논문집
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• pp.114-117
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• 2005

An expert system is a system that employs human knowledge captured in a computer to solve problem that ordinarily require human expertise. Well-designed expert systems imitate the reasoning processes experts use to solve specific problem. Specially, expert systems are used to the engineer in manufacturing industry for the process control, production management and system management. In this paper, we propose the design process expert system for product design process in manufacturing industry and we present introduction and contents of design process expert system methodology and software for the air purifier design system. This system will be helpful to improvement of design process for the air purifier production.

• 전기학회논문지
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• 제58권7호
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• pp.1276-1280
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• 2009

This paper presents a fault diagnosis expert system for 765kV substation. The proposed system includes the topology processor and intelligent alarm processing subsystems. This expert system estimates the fault section through the inference process using heuristic knowledge and the output of topology processor and intelligent alarm processing system. The rule-base of this expert system is composed of basic rules suggested by Korea Electric Power Corporation and heuristic rules. This expert system is developed using PROLOG language. Also, user friendly Graphic User Interface is developed using visual basic programming in the windows XP environment. The proposed expert system showed a promising performance through the several case studies.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1995년도 하계학술대회 논문집 B
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• pp.637-639
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• 1995

Since power systems tend to be more large and complex, expert system substituted for the decision-making achieved by the power system operation expert is required. So far, expert system has been used for fault diagonosis and voltage-reactive power control and so on. In the expert system developed using 'C' language, the faulted element is estimated using the AND operation of lists which are acquired from the information on operated relays. It is also considered to identify the misoperation of protective devices using CF(Certainty Factor), and operation failure of those using the data base of parameter group list. The developed expert system is applied to a 6-bus sample system and through the case studies. It is shown that the expert system is very useful.