• 한국CDE학회논문집
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• 제21권3호
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• pp.252-266
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• 2016

An architectural pre-design, which is conducted prior to the architecture design, supports fundamental configuration during the entire AEC project by predicting the cost, demand, etc., of the building, and is therefore gaining importance. In particular, the massing calculation of the pre-design phase should be prioritized, as it is fundamental to architectural outline. However, most architects depend on only their experience and intuition while conceptualizing an integrated framework of design conditions, including the building code and requirements for the massing calculation of the object. Therefore, many difficulties arise in terms of performing appropriate tasks. Thus, the purpose of this study is to implement a knowledge-based BIM for explicitly representing the design knowledge, which is the basis of decision making for an architect while performing the massing calculation. In particular, the 3D knowledge relevant to a project can be provided and accumulated in the massing calculation by the BIM system; this facilitates an integral understanding. Consequently, the approximate result of massing calculation in 3D BIM environment, through both the knowledge-based BIM template and plug-in, can be swiftly provided to the architect. In addition, the architect can invent various alternatives, estimate resulting costs, and reuse the accumulated knowledge in future BIM design processes.

• 한국지능시스템학회논문지
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• 제13권2호
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• pp.222-230
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• 2003

의료 시스템이 개발되면 시스템이 사용하는 knowledge source의 신뢰도가 시스템의 수행능력에 큰 영향을 미치게 되므로, knowledge source의 신뢰도를 검증해야한다. 본 논문은 의료 시스템 CLINAID의 knowledge source의 신뢰성 조사에 대한 연구의 방법과 결과를 발표하였다. 그 방법으로는 CLINAID에 사용된 Cardiovascular body system 데이터에 fuzzy relational method를 적용하여 구조적 분석을 통해 만들어진 인공의 syndrome을 knowledge base에 저장되어있는 의료 전문가의 syndrome과 비교하였다. 7 가지 fuzzy implication operator를 사용하여 거의 비슷한 결과들을 산출해 냈으며, 그 결과들이 전문가가 제공한 syndrome과 거의 일치하였다.

• Journal of Ship and Ocean Technology
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• 제12권1호
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• pp.28-34
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• 2008

The purpose of this paper is to define the concept of KAD/KAM, furthermore is to establish my own idea on the knowledge related works in engineering domain for a next decade ahead. KAD/KAM is represented as "Knowledge Everywhere" based on the concept of ubiquitous computing in engineering domain. At the beginning of the paper, the definition of KAD/KAM is described. And the related technologies to realize KAD/KAM, such as augmented reality, ontology, data mining, and knowledge management, are introduced. The concept of KAD/KAM is still immature. But this will be a new paradigm to change entire engineering environment in near future.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 추계학술대회 논문집
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• pp.798-803
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• 2005

The increasing complexity of modem products requires the effective management of design knowledge, which partly resides in the product itself on the one hand. On the other hand, a lot of knowledge is gathered and/or generated during the design process, but disappears as the design project concludes. This paper describes a knowledge representation method to accommodate the implicit design knowledge. The method is based on the FBS(Function-Behavior-Structure) model and extends the object ontology with constraint entity. An example to represent the injection mold design knowledge is given to show its applicability.

• 디지털융복합연구
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• 제15권3호
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• pp.313-318
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• 2017

PhotoShop 등과 같은 디자인 관련 소프트웨어의 사용자들은 관련 지식에 관하여 알고 싶을 경우, 일반적으로 인터넷을 검색하게 된다. 그러나 인터넷에서 원하는 디자인 관련 지식만을 검색하기는 매우 어려운 실정이다. 왜냐하면 기존의 지식 공유 시스템들은 다루는 분야가 광범위하고, 디자인에 특화된 다양한 형태의 질문 및 답변, 지식 거래 등을 제공하는 곳은 거의 없기 때문이다. 본 논문에서는 디자인 지식의 특성을 반영하여 텍스트 뿐만 아니라 이미지, 동영상 등을 통한 자유로운 질의 응답 기능, 강의 기능, 지식거래 기능 등을 제공하는 동영상 기반 디자인 지식 공유 시스템을 개발하였다. 본 시스템을 이용하여 디자인 지식을 공유함으로써 제품 경쟁력 확보에 기여할 수 있을 것으로 기대된다. 향후 본 시스템은 디자인 지식뿐만 아니라 다양한 지식을 공유할 수 있는 프레임으로 확대가 필요할 것이다.

• 디지털융복합연구
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• 제12권6호
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• pp.245-252
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• 2014

시맨틱 검색은 논리적으로 표현된 지식 베이스를 사용하여 현재의 키워드 기반 검색보다 더 정확한 결과를 제공할 수 있다. 그러나 일반 사용자는 지식 기반의 복잡하고 정형화된 질의어와 스키마를 잘 알지 못한다. 그래서 검색 시스템은 사용자 키워드의 의미를 해석할 수 있어야 한다. 본 논문에서는 멀티미디어 콘텐츠의 시맨틱 검색을 위한 사용자 질의 의미 해석 시스템을 설명한다. 제안한 시스템은 도메인 온톨로지 기반으로 구축된 지식 베이스의 정형화된 구조에 의미 해석 과정이 통합된 온톨로지 지식 베이스 기반 검색 시스템이다.

• Computers and Concrete
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• 제7권3호
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• pp.249-269
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• 2010

Managing and reusing knowledge in engineering and construction sectors can lead to greater competitive advantage, improved designs, and more effective management of constructed facilities. The use of Information Technology (IT) in design and construction can exploit strategic opportunities for new ways of integration, sharing and facilitating information and knowledge in any field of engineering. The integrating of separate areas of IT can be used to bring a group of experts and specialists in any field of engineering closer together by allowing them to communicate and exchange information and expertise that facilitate knowledge capture, sharing, and reuse. A lack of an advisory management system and a need to marshal all available data in a common format has indicated the need for an integrated engineering computing environment to investigate concrete repair problems. The research described in this paper is based upon an evaluation management system (EMS) which comprising a database management system (REPCON) alongside visualisation technologies and evaluation system (ECON) is developed to produce an innovative platform which will facilitate and encourage the development of knowledge in educational, evolution and evaluation modes of concrete repair. This allows us to create assessment procedures that will allow the current condition of the concrete structure and its components to be expressed numerically using a confidence level (CL) so as to take the best course of action in the repair and maintenance management. The explained rating system, which is related to structural integrity and serviceability of the structure, allows the confidence level to be determined by visual inspection and the descriptive information and pictures taken from an available REPair of CONcrete (REPCON) database.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2001년도 학술대회지
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• pp.462-467
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• 2001

최근 민간뿐만 아니라 공공부문에서도 경쟁력 제고를 위하여 지식정보화에 대한 관심이 고조되고 있다 건설산업은 타산업에 비하여 제품이나 프로세스 측면에서 지식의 활용도가 높은 분야이다. 건설산업의 경우 R&D 투자 측면에 있어 IMF 이전으로 회복하지 못하고 있으며, 기술수준은 선진국 대비 4.6년의 격차를 보이고 있다. 정보인프라 또한 타산업에 비해 투자와 정보이용률이 저조하며, 지식경영에 있어서는 비전 수립과 정보기술 활용에 있어서 높은 수준을 보이고 있으나 지식의 공유와 평가 활동은 부진한 것으로 파악되었다. 건설산업의 지식정보화 기반 육성을 위해서는 지속적인 투자, 지식 공유에 대한 마인드 고취를 위한 교육, 지식 측정 및 평가를 위한 제도 마련 그리고 조직 문화의 육성이 요구된다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2001년도 춘계학술대회 논문집
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• pp.774-777
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• 2001

This paper describes a research work of developing a computer-aided design system of cold forging products. An approach to the system is based on the knowledge-based rules. Knowledge for the system is formulated from plastic theories, experimental results and the empirical knowledge of field experts. The system has been written in AutoCAD with a personal computer and is composed of six modules, which are selection of billet material, input of final product, process planning design, preform modification, insert design, shrink rings design module. Based on knowledge-based rules, the system is designed by considering several factors such as volume constancy, limite of formability by material, preform shape and so on.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2000년도 춘계학술대회 논문집
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• pp.829-832
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• 2000

This paper describes a research work of developing a computer-aided design of product with bending and piercing for progressive working. An approach to the CAD system is based on the knowledge-based rules. Knowledge fur the CAD system is formulated from plasticity theories, experimental results and the empirical knowledge of field experts. The system has been written in AutoLISP on the AutoCAD with a personal computer and is composed of three main modules, which are input and shape treatment, flat pattern layout and strip layout module. Based on knowledge-based rules, the system is designed by considering several factors, such as radius and angle of bend, material and thickness of product, complexities of blank geometry and punch profile, bending sequence, and availability of press. Strip layout drawing automatically generated by piercing with punch profiles divided into for external area is simulated in 3-D graphic forms, including bending sequences for the product with piercing and bending. Results obtained using the modules enable the manufacturer of electronic products to be more efficient in this field.