• Journal of the Korean Society for Precision Engineering
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• v.18 no.10
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• pp.19-25
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• 2001

• Annual Conference of KIPS
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• 2003.05a
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• pp.269-272
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• 2003

그레이팅이라는 금속제품의 자동 설계 시스템인 GDS (Grating automatic Drawing System)는 기본 설계 도면(Plan Drawing)의 정보들을 바탕으로 여러 세부 도면들을 자동 생성하는 시스템이다. 그러나 GDS를 통해 자동 생성된 도면은 설계자들의 일반적인 치수기입 요령을 부분적으로 만족시키지 못하고 있으며 또 치수 표시간의 겹침 현상이 발생하여 설계자가 도면을 수정해야 하는 번거로움이 있었다. 본 논문은 이러한 문제점을 해결하기 위해, 설계 전문가들의 치수 표시법을 지식으로 하여 규칙 기반 전문가 시스템을 구성하였다.

• Journal of the Korean Data and Information Science Society
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• v.8 no.2
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• pp.173-181
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• 1997

In oriental medicine, it is required that correct medical knowledge should be maintained for medical expert system which analyzes and diagnoses patients symptoms. Typical medical expert system has a knowledge base as its core, and the knowledge base contains a domain specific knowledge about patients records. However, oriental medicine diagnostic knowledge is formed mostly as qualitative data, knowledge could be ambiguous and uncertain. In this paper, we looked at quantification methods and propose a method for quantifying the oriental medicine diagnostic knowledge, which is improving the knowledge base of an oriental medicine expert system.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 1998.10a
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• pp.855-859
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• 1998

본 연구는 RC 공정을 대상으로 하여 핵물질 계량을 위한 실시간 정보관리 시스템 모형을 설계하였으며 개발기구는 PC상에서 C언어를 이용한 Nexpert Object를 이용하였다. 전문가 시스템을 이용한 계량관리 시스템은 다중 상속성을 갖는 규칙과 임의 객체를 포함한 객체들로써 Nexpert Object의 개발 환경에서 지식 기반이 설계되었다. 설계된 지식 기반은 Nexpert Object Protected Mode의 운영 환경에서 무한한 양의 정보관리가 신속 정확히 이루어질 수있었다.

• Journal of Digital Contents Society
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• v.7 no.4
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• pp.245-249
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• 2006

In the rapidly changing high-tech society, lots of people are exposed to various kinds of stress and disease with an effort to adopt to the society, in spite of the benefits and abundance created by various technologies. Therefore, the health of modem people is our main concern and essential subject. The researcher would like to suggest systematical and intelligent medical diagnosis expert system that can give the effect same as the help from real experts with health check helper and scientific and objective knowledge that fit to the age and environment of changing.

• The Journal of the Korea Contents Association
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• v.5 no.6
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• pp.20-30
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• 2005

In the anaerobe identification, when we develop the clinical decision support system for department of laboratory medicine, we must consider expression of an incomplete knowledge structure and addition of an evolving knowledge based on an expert's informal and heuristic knowledge is very complicated work flow. In the present study, we developed the system for anaerobe identification to advise on identification of unknown bacillus using knowledge base and inference engine. In the future, we are planning to develop the clinical decision support system for the whole bacteria not only an anaerobe but also aerobe to offer an expert's static and dynamic knowledge.

• The Transactions of the Korea Information Processing Society
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• v.5 no.3
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• pp.662-670
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• 1998

In order to overcome the problems with first generation expert systems at the symbol level, recently various knowledge level development techniques of second generation expert systems have been proposed. But, these techniques are conceptual modelling techniques. This paper modifies and complements these conceptual modelling techniques and proposes a Task Object Modelling (TOM) technique as a practical knowledge level expert system development technique. This paper defines a Task Object(TO) as a knowledge unit consisted of a goal, execution conditions, behaviour knowledge, and so on. And, we define a Task Object Diagram(TOD) to depict structual, dynamic, and functional aspects of TO easily. We also define Inference Types as basic units to describe behaviour knowledge of TOs. In order to utilize the proposed TOM technique as not a simple conceptual modelling technique but a practical second generalion expert system development technique, we implement a TOD editor, a TO editor, and TO processing algorithm based on the state of TOs. Also we implement a Inference Types Library, in which each inference type is corresponded to an IRE(Jntelligent Rules Element) method, to transform the defined inference types into IRE methods automatically.

• Annual Conference of KIPS
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• 2001.10a
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• pp.575-578
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• 2001

전문가 시스템은 진단, 교육, 해석, 계획, 예측, 처방, 제어 등 지식의 거의 모든 분야에 적용되어 오고 있으며, 의료 분야에서도 의사의 진단과 처방을 보조하기 위해서 의료 전문가 시스템이 다양한 질환에 대해서 개발되어 사용되고 있다. 그러나 인터넷에서 사용할 수 있는 전문가 시스템의 개발은 미흡하다. 웹 상에서의 의료 전문가 시스템은 의사가 없는 지역에서는 의사의 기능을 대신할 수 있으며 병원에서도 웹을 통하여 손쉽게 전문적인 의료정보에 접근한 수 있는 점에서 그 필요성이 절실하다. 본 논문에서는 Java로 개발된 전문가 시스템 쉘 JESS를 사용해 웹 상에 효과적으로 사용할 수 있는 소화기 질환의 의료 전문가시스템을 개발한다.

• The Transactions of the Korea Information Processing Society
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• v.5 no.8
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• pp.2075-2082
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• 1998

Rule-based knowledge representHtion is, the most popular technique for ,storage and manipulation of domain knowledge in expert system. By the way, the amount of knowledge increases more and more in this representatiun technique, it, relationship becomes complex, and even its contents can be modified. This is the reason why rule-based knowledge representation technique requires a verification ,system which can maintain consistency and completeness of knowledge base. This paper is to propose a verification system for consistency and completeness of knowledge base to promote the efficiency and reliability of expert system. After verifying the potential errors both in structure and in semantics whenever a new rule is added, this system renders knowledge base consistent and complete by correcting them automatically or by making expert correct them if it fails.

• The KIPS Transactions:PartD
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• v.11D no.7 s.96
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• pp.1527-1536
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• 2004

For using the knowledge of experts diversely and efficiently, it is very important that the system could represent the complex knowledge in well structured manner and also adapt well to the frequent schema changes. In this paper, we propose an efficient method for knowledge base management by using XML based templates. In our proposed method, to solve the inefficiency of management of many XML documents, we represent the complex knowledge on XML-based templates, and manage the templates structurally by using a meta-template that defines relationship among the templates. In order to show the effectiveness of our method, we developed a knowledge base to formulate an exercise prescription for a subject and an application program to classify the subject's fitness. The experimental study shows that XML-based templates provide a flexible, extensible and structured way of representing expert knowledge. The inference using XML-based templates can be controlled systematically and efficiently by using meta-template.