• Title, Summary, Keyword: knowledge engineering

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Development of Data Mining Tool for the Utilization of Shipbuilding Knowledge based on Genetic Programming (조선기술지식 활용을 위한 유전적 프로그래밍 기반의 데이터 마이닝 도구개발)

  • Lee Kyung-Ho;Oh June;Park Jong-Hyun;Park Jong-Hoon
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • pp.185-191
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    • 2006
  • As development of information technology, companies stress the need of knowledge management. Companies construct ERP system including knowledge management. But, it is not easy to formalize knowledge in organization. They experience that constructing information system help knowledge management. Now, we focus on engineering knowledge. Because engineering data contains experts' experience and know-how in its own, engineering knowledge is a treasure house of knowledge. Korean shipyards are leader of world shipbuilding industry. They have accumulated a store of knowledges and data. But, they don't have data minning tool to utilize accumulated data. This paper treats development of data minning tools for the utilization of shipbuilding knowledge based on genetic programming (GP).

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Development of Data Mining Tool for the Utilization of Shipbuilding Knowledge based on Genetic Programming (조선설계에서의 데이터 해석 및 활용을 위한 데이터 마이닝 도구 개발)

  • Lee, Kyung-Ho;Park, Jong-Hoon;Choi, Young-Bok;Jang, Young-Hoon;Oh, June
    • Journal of the Society of Naval Architects of Korea
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    • v.43 no.6
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    • pp.700-706
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    • 2006
  • As development of information technology, companies stress the need of knowledge management. Companies construct ERP system including knowledge management. But, it is not easy to formalize knowledge in organization. They experience that constructing information system help knowledge management. Now, we focus on engineering knowledge. Because engineering data contains experts' experience and know-how in its own, engineering knowledge is a treasure house of knowledge. Korean shipyards are leader of world shipbuilding industry. They have accumulated a store of knowledge and data. But, they don't have data mining tool to utilize accumulated data. This paper treats development of data mining tools for the utilization of shipbuilding knowledge based on genetic programming(GP).

Ontology-Based Multi-level Knowledge Framework for a Knowledge Management System for Discrete-Product Development

  • Lee, Jae-Hyun;Suh, Hyo-Won
    • International Journal of CAD/CAM
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    • v.5 no.1
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    • pp.99-109
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    • 2005
  • This paper introduces an approach to an ontology-based multi-level knowledge framework for a knowledge management system for discrete-product development. Participants in a product life cycle want to share comprehensive product knowledge without any ambiguity and heterogeneity. However, previous knowledge management approaches are limited in providing those aspects: therefore, we suggest an ontology-based multi-level knowledge framework (OBMKF). The bottom level, the axiom, specifies the semantics of concepts and relations of knowledge so ambiguity can be alleviated. The middle level is a product development knowledge map; it defines the concepts and the relations of the product domain knowledge and guides the engineer to process their engineering decisions. The middle level is then classified further into more detailed levels, such as generic product level, specific product level, product version level, and manufactured item level, according to the various viewpoints. The top level is specialized knowledge for a specific domain that gives the solution of a specific task or problem. It is classified into three knowledge types: expert knowledge, engineering function knowledge, and data-analysis-based knowledge. This proposed framework is based on ontology to accommodate a comprehensive range of knowledge and is represented with first-order logic to maintain a uniform representation.

Knowledge Evaluation of Individual Competence for Virtual Project Organization (가상 프로젝트 조직의 개인관점 지식역량 평가)

  • Lee, Kyung-Huy;Kim, Cheol-Han;Woo, Hoon-Shik
    • Journal of the Society of Korea Industrial and Systems Engineering
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    • v.35 no.4
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    • pp.133-141
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    • 2012
  • Virtual project organization may be recognized as one of the promising business models in which many knowledge sources externalize through cross boundaries of knowledge-based organizations. This paper proposes a knowledge competence evaluation of virtual project organization based on the following perspectives: 1) Individual knowledge perspective, 2) Activity-oriented knowledge perspective, and 3) Knowledge-driven social network perspective. In the framework, individual knowledge competence having experienced or learned from knowledge-based activities and virtual networks in the project, should be evaluated according to the assumption that knowledge and collaboration competence depends on the activities and networks acquired proportionally by the past participation to projects. An illustrative SI example is given in order to validate the proposed evaluation and computing procedure.

Ontology-Based Knowledge Framework for Product Life cycle Management (PLM 지원을 위한 온톨로지 기반 지식 프레임워크)

  • Lee Jae-Hyun;Suh Hyo-Won
    • Journal of the Korean Society for Precision Engineering
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    • v.23 no.3
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    • pp.22-31
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    • 2006
  • This paper introduces an approach to an ontology-based knowledge framework for product life cycle management (PLM). Participants in a product life cycle want to share comprehensive product knowledge without any ambiguity and heterogeneity. However, previous knowledge management approaches are limited in providing those aspects. Therefore, we suggest an ontology-based knowledge framework including knowledge maps, axioms and specific knowledge far domain. The bottom level, the axiom, specifies the semantics of concepts and relations of knowledge so that ambiguity of the semantics can be alleviated. The middle level is a product development knowledge map; it defines the concepts and the relations of the product domain common knowledge and guides engineers to process their engineering decisions. The middle level is then classified further into more detailed levels, such as generic product level, specific product level, product version level, and product item level for PLM. The top level is specialized knowledge fer a specific domain that gives the solution of a specific task or problem. It is classified into three knowledge types: expert knowledge, engineering function knowledge, and data-analysis-based knowledge. This proposed framework is based on ontology to accommodate a comprehensive range of unambiguous knowledge for PLM and is represented with first-order logic to maintain a uniform representation.

Ontology-based Knowledge Framework for Product Development (제품개발을 위한 온톨로지 기반 지식 프레임워크)

  • Suh H.W.;Lee J.H.
    • Korean Journal of Computational Design and Engineering
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    • v.11 no.2
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    • pp.88-96
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    • 2006
  • This paper introduces an approach to ontology-based framework for knowledge management in a product development domain. The participants in a product life cycle want to share the product knowledge without any heterogeneity. However, previous knowledge management systems do not have any conceptual specifications of their knowledge. We suggest the three levels of knowledge framework. First level is an axiom, which specifies the semantics of concepts and relations. Second level is a product development knowledge map. It defines the common domain knowledge which domain experts agree with. Third level is a specialized knowledge for domain, which includes three knowledge types; expert knowledge, engineering function and data-analysis-based knowledge. We propose an ontology-based knowledge framework based on the three levels of knowledge. The framework has a uniform representation; first order logic to increase integrity of the framework. We implement the framework using prolog and test example queries to show the effectiveness of the framework.

Toward Knowledge-Aided Design & Manufacturing (KAD/KAM)

  • Lee, Kyung-Ho
    • Journal of Ship and Ocean Technology
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    • v.12 no.1
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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.

Development of a Knowledge Management Promotion System of Utilizing the SECI Model in Production Fields (SECI모델을 이용한 생산현장 지식경영촉진체계 구축)

  • Kim, Young-In;Hong, Sung-Jo
    • Journal of the Society of Korea Industrial and Systems Engineering
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    • v.31 no.2
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    • pp.1-10
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    • 2008
  • In the knowledge-based society which recognizes knowledge as a core value, knowledge management is one of the most interesting issues. The creation of knowledge within an organization occurs as a result of interactions of tacit and explicit knowledge, in process of knowledge conversion. One useful model of this process is the SECI model which stands for a process of socialization, externalization, combination and internalization of knowledge. The enterprise competitive power depends on how an organization accelerates the speed of the cycle of knowledge creation well. In this paper we introduce a knowledge management promotion system based on SECI model and proposal system to promote the cycle of knowledge creation in production fields, and study an enterprise case.

Reconstructible design knowledge expression using Design DNA method (Design DNA 방법을 이용한 재구성 가능한 설계 지식의 표현)

  • 고희병;하성도;김태수;이수홍
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • pp.1-4
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    • 2003
  • Knowledge classification and expression of constructed knowledge have been main research issues in the field of knowledge representation. Constructed design knowledge of the former product loses its utility when new products with different structures are introduced to the market. In order to construct the design knowledge for a new product. designers need to reconstruct the design knowledge with new relationships. The design knowledge has been constructed with level trees, but it is difficult to rearrange the relations. Design DNA is proposed in this work in order to facilitate the rearrangement of design knowledge and give flexibility to knowledge structure. Design DNA is based on Layout-oriented domain knowledge and Function-oriented domain knowledge, which enables to generate new design knowledge that will result in new part geometries for given constraints on the part functions. Design DNA is applied to the design knowledge of lever system of the automatic transmission of passenger cars as an example.

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A WF-KMS Framework on the Semantic Web (시맨틱 웹을 이용한 워크플로우 기반의 지식관리 시스템 프레임워크)

  • Kwon Hyung-Cheol;Choi Doug-Won;Lee Dong-Cheol
    • Journal of the Society of Korea Industrial and Systems Engineering
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    • v.27 no.4
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    • pp.69-76
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    • 2004
  • A framework for knowledge management system has been explored which enables the semantic search of knowledge on the web. Knowledge representation by RDF and RDF schema enables machine cognition of knowledge documents. Dublin core was adopted for structured metadata representation. Thereby, it enables the CBR and rule based reasoning for intelligent knowledge retrieval. Grafting of the WFMS technique unto the KMS facilitates the effective utilization of process knowledge and creation of new knowledge.