• Proceedings of the Korea Inteligent Information System Society Conference
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• 2006.06a
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• pp.294-300
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• 2006

This case study shows constructing the knowledge-based system using a rule-based approach for detecting transactions regarding money laundering in the Korea Financial Intelligence Unit (KoFIU). To better manage the explosive increment of low risk suspicious transactions reporting from financial institutions and to conjugate data converged into the KoFIU from various organizations, the adoption of a knowledge-based system is definitely required. We designed and constructed the knowledge-based system for anti-money laundering by committing experts of each specific financial industry co-worked with a knowledge engineer. The outcome of the knowledge base implementation shows that the knowledge-based system is filtering STRs in the primary analysis step efficiently and so has made great contribution to improve efficiency and effectiveness of the analysis process. It can be said that establishing the foundation of the knowledge base under the entire framework of the knowledge-based system for consideration of knowledge creation and management is indeed valuable.

• Proceedings of the Korean Professional Engineer Association Conference
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• 1987.12a
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• pp.65-71
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• 1987

All Korean professional engineer′s great joy Is to welcome the Japanese professional engineers and relevant guests to the 1987 Japan-Korea Professional Engineers Joint Convention organized by the Korean Professional Engineers Association. As there exists an effort of blood, sweat and tear behind a succeeded theatrical stage, so an exquisite devotion with drawing up a master plan, investigation, supervision and etc by engineering firms is soaked through every part of huge construction projects and large unit factory buildings. It is over 14 years that the Engineering Service Promotion Law has been enacted by the Ministry of Science and Technology. In the meantime, the domestic engineering (engineering service) have reached a remarkable higher level while the number of engineering firms participating in overseas market has gradually been increasing. From a small scale of under water investigation to a large scale planning of atomic reactor or petrochemical plant, engineering service business can be said "The Software of Total Industry." Engineering service is what is called a higher business which offers specialized engineering know-how and experience. Engineering service compaines offer Its specialized knowledge and experience to government, industry and commerce. Whether the task is to modernize plant equipment, to design a building or to manage construction, an engineering company will develop and implement the most appropriate and cost effective solution. Clients use the engineering service of firm knowing that the engineer′s professional judgement is not influenced or biased by other commercial affiliations. While benefiting from the diverse experience that professional engineers can apply to a specific problem, government and industry also reduce the need for permanent in-house engineering staff. Engineering firms may be specialized or multi-disciplinary.

• Proceedings of the Korea Database Society Conference
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• 1999.06a
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• pp.137-143
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• 1999

전문가시스템은 지식베이스를 이용하여 지식을 추론하는 추론엔진과 해당분야의 전문지식이 쌓여있는 지식베이스로 구성되어진다. 전문가시스템연구에 있어서 지식베이스에 저장되는 지식획득과정의 규명이 가장 핵심적인 연구분야라고 할 수 있다. 전문지식은 일반적으로 지식공학자들이 전문가로부터 전문지식을 획득하여 구현하는 것이 가장 일반적인 방법으로서 많은 전문가시스템 개발방법 이론들은 지식획득과정에서 지식공학자들의 역할을 필수적인 것으로 이해하고 있다. 그러나 지식획득에 관한 광범위한 해결책은 여전히 제시되고 있지 못하며, 이러한 문제점은 전문가시스템의 상용화에 가장 큰 어려움으로 지적되고 있다. 최근에는 이러한 지식획득병목현상을 해결하기 위하여 상황인식론과 같은 지식에 대한 새로운 해석을 기반으로한 지식획득 방법 이론들이 소개되고 있다. Multiple Classification Ripple Down Rules이론은 1995년 소개된 이론으로서 지식의 획득과정을 지식의 유지보수라는 소프트웨어 공학적 개념에서 접근하고 있다. 지식의 획득과정에서 완전무결한 지식의 모델 찾기를 지양하고 지식이란 단계적 확장개념에서 진화한다고 이해한다. 즉 지식베이스의 구축 단계를 개발과 완료가 불가능하다는 관점에서 지식베이스는 끊임없이 유지보수가 필요한 대상으로 이해하고 이러한 유지보수를 가능하게 하는 방법론을 제시한다 MCRDR에서 가장 핵심적인 부분은 지식공학자의 역할을 최소화하고 시스템 내부에서 지식의 관리와 획득을 수행하여 전문가로 하여금 직접적인 지식 입력이 가능하도록 하는 부분이다. MCRDR이론의 경우 여러가지 연구실험을 통하여 실용성이 입증되었고 의료분야에서 상용화 시스템 개발 툴로서 사용되어져 왔다. 그러나 MCRDR이론이 적용된 전문가시스템 들의 경우 MCRDR이론을 기본으로한 개발 툴로서 개발된 시스템들이 아니고 해당분야에서 MCRDR이론을 적용한 엔진을 직접 설계 구현하여 온 것이 사실이다. KEE(Knowledge Engineer for Experts) 시스템은 최근 개발된 MCRDR기반 전문가시스템 개발 툴로서 본 논문에서는 이러한 분야별 전문가시스템 개발을 지양하고 MCRDR이론을 기반으로 한 범용성 있는 전문가시스템 개발 툴의 개발에 관한 연구를 소개한다.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 1999.03a
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• pp.137-143
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• 1999

전문가시스템은 지식베이스를 이용하여 지식을 추론하는 추론엔진과 해당분야의 전문지식이 쌓여있는 지식베이스로 구성되어진다. 전문가시스템연구에 있어서 지식베이스에 저장되는 지식획득과 정의 규명이 가장 핵심적인 연구분야하고 할 수 있다. 전문지식은 일반적으로 지식공학자들이 전문가로부터 전문지식을 획득하여 구현하는 것이 가장 일반적인 방법으로서 많은 전문가시스템 개발방법 이론들은 지식획득과정에서 지식공학자들의 역할을 필수적인 것으로 이해하고 있다. 그러나 지식획득에 관한 광범위한 해결책은 여전히 제시되고 있지 못하며, 이러한 문제점은 전문가 시스템의 상용화에 가장 큰 어려움으로 지적되고 있다. 최근에는 이러한 지식획득병목현상을 해결하기 위하여 상황인식론과 같은 지식에 대한 새로운 해석을 기반으로한 지식획득 방법 이론들이 소개되고 있다. Multiple Classification Ripple Down Rules 이론은 1995년 소개된 이론으로서 지식의 획득과정을 지식의 유지보수라는 소프트웨어 공학적 개념에서 접근하고 있다. 지식의 획득과정에서 완전무결한 지식의 모델 찾기를 지양하고 지식이란 단계적 확장개념에서 진화한다고 이해한다. 즉 지식베이스의 구축 단계를 개발과 완료가 불가능하다는 관점에서 지식베이스 끊임없이 유지보수가 필요한 대상으로 이해하고 이러한 유지보수를 가능하게 하는 방법론을 제시한다. MCRDR에서 가장 핵심적인 부분은 지식공학자의 역할을 최소화하고 시스템 내부에서 지식의 관리와 획득을 수행하여 연구실험을 통하여 실용성이 입증되었고 의료분야에서 상용화 시스템 개발 툴로서 사용되어져 왔다. 그러나 MCRDR 이론이 적용된 전문가시스템들의 경우 MCRDR이론을 기본으로한 개발 툴로서 개발된 시스템들이 아니고 해당분야에서 MCRDR이론을 적용한 엔진을 직접 설계 구현하여 온 것이 사실이다. KEE(Knowledge Engineer for Experts) 시스템은 최근 개발된 MCRDR기반 전문가시스템 개발 툴로서 본 논문에서는 이러한 분야별 전문가시스템 개발을 지양하고 MCRDR 이론을 기반으로 한 범용성 있는 전문가시스템 개발 툴의 개발에 관한 연구를 소개한다.

• Journal of the Korean Professional Engineers Association
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• v.42 no.6
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• pp.28-30
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• 2009

There is a proverb in Korea "Don't chase after another." It can be a right proverb in sometimes. However, usually it doesn't fit in these various society, information knowledge society. Modern society requires convergence technology. IBS (Intelligent Building System) requires knowledge of architecture field, electric field, communication field, and computation field. ITS (Intelligent Transport Systems) which is constructing in many cities requires various knowledge as engineering works, electricity, computation, communication and transportation. In the case of u-City, it requires technology of many fields as architecture, electricity, communication, engineering works, transportation, and computation. Anyone who wants to participate in u-City should study and acquire knowledge in various field. Otherwise, it must be failed because of lack of communication like as the Tower of Babel. U-City is not a portion of one field. Therefore, engineers in many fields should cooperate with each other to make u-city as the best product in the world.

• Annual Conference of KIPS
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• 2009.04a
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• pp.50-52
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• 2009

Ontology maintenance is a time consuming and costly process which requires special skill and knowledge. It requires joint effort of both ontology engineer and domain specialist to properly maintain ontology and update knowledge in it. This is specially true for medical domain which is highly specialized domain. This paper proposes a novel approach for maintenance and update of existing ontologies in a medical domain. The proposed approach is based on modified Ontology Maturing Process which was originally developed for web domain. The proposed approach provides way to populate medical ontology with new knowledge obtained from medical documents. This is achieved through use of natural language processing techniques and highly specialized medical knowledge bases such as Unified Medical Language System.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2005.06a
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• pp.65-70
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• 2005

This paper introduces an approach to multi-layered product knowledge model for collaborative engineering environment. The participants in collaborative engineering want to share and reason product knowledge through internet without any heterogeneity and ambiguity. However the previous knowledge models are limited in providing those aspects. In this paper, the collaborative engineering domain is analyzed and then the product knowledge is organized into four levels such as product context model, product specific model, product design model and product manufacturing model. The four levels are represented by first-order logic in layered fashion. The concepts and the instances of a formal ontology are used for recursive representation of the four levels. The instances of the concepts of an upper level like product context model are considered as the concepts of an adjacent lower level like product specific model, and this mechanism is applied to the other levels. These logic representations are integrated with the schema and the instances of a relational database. OWL representation of the four levels is defined through the integration of the logic representation and OWL primitives. The four product knowledge models have their major representation according to the characteristics of each model. This approach enables engineer to share product knowledge through internet without any ambiguity and utilize it as basis for additional reasoning.

• Journal of the Society of Naval Architects of Korea
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• v.30 no.2
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• pp.30-36
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• 1993

An expert system to help a novice engineer in designing midship section is developed. The system is developed based on a general-purpose expert system shell, NEXPERT. Firstly, the design knowledge is extracted from an existing rule scantling program. The knowledge has been grouped and structured into a hierarchy by applying object-oriented concepts. Secondly, the knowledge base is integrated with a database of existing ships and engineering analysis modules through the Application Programming Interface(API)technique. Graphical User Interface which is developed using Motif wiget set is adopted. These altogether enable construction of an user friendly expert system.

• Journal of Biosystems Engineering
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• v.18 no.2
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• pp.133-143
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• 1993

In developing an Expert System(ES), there are two ways. One is to develop an ES using AI(artificial Intelligence) languages and another using ES-development tools. CLIPS is an ES-development tool and has a powerful inference engine in it. Using the tool like CLIPS, knowledge engineer can concentrate on constructing a knowledge base without wasting time in developing an inference engine. However, CLIPS is lack of user-friendly interfaces for both knowledge enginners and users. Because CLIPS was developed in USA, it can not afford to use Korean language. Therefore, several user-friendly interfaces including hmenu, htille, hpcxdisplay were develpoed and added to CLIPS. CLIPS with the interfaces is called HCLIPS(Hangul CLIPS) in this paper. HCLIPS provides a new I/O device to be utilized for expert systems in Korean. HCLIPS can be efficiently used for developing expert systems in agriculture and consulting farmers interactively who are not familiar with computer programming and ES itself.

• Journal of the Korean Society of Systems Engineering
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• v.11 no.2
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• pp.31-40
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• 2015

KEPCO International Nuclear Graduate School (KINGS) is dedicated to nurturing leadership-level professionals in nuclear power plant (NPP) engineering. KINGS have designed curriculum based on two philosophies. First, we balance aspects of discipline engineering, specialty engineering, and management engineering in the framework of systems engineering. Second, KINGS have designed the curriculum so that students can learn and experience the know-what, know-how and know-why level knowledge of NPP engineering and management. The specialization programs are opened during the 2nd year for 3 trimesters and those are a process of learning through practical project courses. The objectives of the specialization programs are to help students to learn the NPP life cycle technologies in highly structured and systematic ways. The systems engineer program (SEP) is one of the specialization programs. A practical case of the SEP which was applied to the project course for the NPP electric power system design education will be elaborated in this paper.