• Title/Summary/Keyword: Knowledge-based System

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An integrated CAD system for blanking or piercing of irregular-shaped sheet metal products (불규칙형상의 박판제품에 관한 블랭킹 및 피어싱용 통합적 CAD시스템)

  • Choi, Jae-Chan;Kim, Byung-Min;Kim, Chul;Yoon, J.H.
    • Journal of the Korean Society for Precision Engineering
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    • v.15 no.2
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    • pp.124-133
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    • 1998
  • This paper describes a research work of developing a computer-aided design of blanking and piercing for irregular-shaped sheet metal products. An approach to the development of compact and practical CAB system is based on the knowledge-based rules. Knowledge for 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. Based on knowledge-based rules, the system, STRT-DES, is designed by considering several factors, such as complexities of blank geometry and punch profile, availability of press equipment and standard parts, utilization ratio which minimizes the scrap in a single or a pairwise operation, bridge width, grain orientation and design requirements which maximize the strength of the part when subsequent bending is involved. This system checks a forming feasibility with both internal and external features, a dimension of blanked hole, and a corner and a fillet radius for irregualrly shaped sheet metal products. Therefore this system can carry out a die design for each process which is obtained from results of an automated blank layout drawing with a best utilization ratio for irregular shape of product that was successful in production feasibility check module and those of an automated strip layout drawing and generate part drawings and the assembly drawing of die set in graphic forms.

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Integrated Knowledge Management System based on Construction Portal (건설포탈 기반통합형 지식관리시스템)

  • Park, Moon-Seo;Jang, You-Jin;Lee, Hyun-Soo;Yoon, You-Sang
    • Korean Journal of Construction Engineering and Management
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    • v.11 no.4
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    • pp.12-21
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    • 2010
  • Construction companies recently have been highly interested in developing information system as following the advanced of IT technology. Especially, with advent of knowledge-based paradigm, Knowledge Management System(KMS) has been actively built. However, current KMS is not optimized and not satisfied because KMS is not integrated with existing information system and has problems of method of knowledge management. The objectives of this research is to develop integrated KMS, which synthesizes knowledge and functions of scattered information system. This research investigates current KMS and analyzes the requirements of KMS. Based on the requirements, the utilization of construction portal is suggested. And integrated knowledge management method, which has connections with applications in construction portal, is suggested and the system is developed.

Customizing Intelligent Recommendation System based on Compound Knowledge (복합지식 기반 개인 맞춤형 지능화 추천시스템)

  • Kim, Gui-Jung;Kim, Bong-Han;Han, Jung-Soo
    • The Journal of the Korea Contents Association
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    • v.10 no.8
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    • pp.26-31
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    • 2010
  • This research does focus on realization of customizing recommendation service that all of formal, or informal learning is accomplished at real time according to worker's current situation or business context corresponding with the individual ability and the learning progress at industry or education field. For this, we designed the customizing intelligent recommendation system based on compound knowledge that workers can listen to coaching advices at real time and to retrieve and recommend multidimensional relation easily. Also, we constructed the repository based on compound knowledge and process engine for efficient management of compound knowledge. In specific industry, expert solution or coaching service will be created using the knowledge which is accumulated in long-term.

The Factors to Promote Internet Knowledge Sharing: Based on Social Capital Theory and Self-Expression Concept (인터넷 지식공유에 영향을 미치는 요인 연구: 사회적 자본 이론과 자기표현욕구를 중심으로)

  • Han, Jin-Woo;Yoo, Chul-Woo;Choe, Young-Chan
    • Journal of Agricultural Extension & Community Development
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    • v.16 no.1
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    • pp.153-180
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    • 2009
  • The previous researches about knowledge sharing were proceeded in terms of KMS (Knowledge Management System) in center. However, knowledge sharing is recently applied to Internet space, which is open to every users, as well as KMS, which is qualified for restricted people. For example, some portal sites, such as Naver, the most popular portal in Korea, have virtual spaces to share users' knowledges and it is common that many users use the spaces. Knowledge sharing online, compared with KMS, will be more advanced to promote intention for knowledge sharing because of the character of Internet space that is open to all users. Nevertheless, there are few researches about knowledge sharing in the Internet. Considering this situation, this study is attempted to figure out the factors to promote Internet knowledge sharing, based on social capital theory and self-expression concept. A survey of experienced Internet user and PLS (Partial Least Square) were utilized for analysis. The test of this study reveals that social capital and self-expression are significant factors to influence knowledge sharing intention, and that also personal innovation and self-efficacy are significantly related to the self-expression. However, personal innovation does not have significant impact on social capital. According to the result, self-expression, as well as trust and system itself, has significantly effect on knowledge sharing intention in order to promote knowledge sharing in the Internet.

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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 s.150
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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).

Vision and Research Challenges of the Next Generation Knowledge Management Systems : A Pervasive Computing Technology Perspective (편재형 컴퓨팅 기술을 적용한 차세대형 지식경영시스템의 비전과 연구 이슈)

  • Yoo, Keedong;Kwon, Ohbyung
    • Knowledge Management Research
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    • v.10 no.1
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    • pp.1-15
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    • 2009
  • As pervasive computing technology, which aims to get linked to useful knowledge, information or services anytime, anywhere, using any devices and/or artifacts, is proliferating, desirable impacts on knowledge management systems are now available. The pervasive computing technology will potentially enable the knowledge management systems to realize individualization and socialization and ultimately increase the knowledge processing productivity. However, researchers who apply the pervasive computing methodologies to novel way of knowledge management have been very few. These result in unsatisfactory consideration of establishing pervasive knowledge management systems. Hence, the purpose of this paper is to cast the vision of pervasive knowledge management and search for a couple of possible research issues and possibilities. This paper suggests a framework of ubiDSS, an amended knowledge management system for the next generation deploying pervasive and autonomous knowledge acquisition capabilities of ubiquitous computing technologies. Also the CKAM, context-based knowledge acquisition module, is illustrated as a prototype of future knowledge management systems.

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A Study on the Developing Strategies of Knowledge based Industry in ChunChon Area for the Digital Age. (디지털시대 춘천지역 지식기반산업의 발전방안에 관한 연구)

  • Kim, Chi-Ho;La, Kong-Woo;Min, Tae-Hong
    • International Commerce and Information Review
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    • v.8 no.3
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    • pp.3-21
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    • 2006
  • This study aims to explore the developing strategies of knowledge based industry in ChunChon Area. This study suggests several strategies for promoting local development in Chunchon Area as follows ; first, building of local innovation system in chunchon area and convergence and diffusion of knowledge based industries. second, making of industrial environment suitable to developing knowledge based industries. third, the establishment of overall industrial supporting systems. fourth, expansion of industrial infra and prevention of the brain drain. fifth, transformation of industrial complex into innovation clusters. The result of this study will be useful for the chief executives officers to make more rational decision making for industrial developing strategies is related to the Knowledge based Industries. The paper also strives to provoke debate in this area with to encouraging further research on the topic.

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A SHdy on the Development of an Expert System for Chemical Plant Diagnosis Fault -An Object Description System based on Functional Structure- (화학 플랜트의 고장원 탐색 전문가 시스템에 관한 연구 -기능구조에 의한 대상의 지식표현 방법-)

  • 황규석
    • Journal of the Korean Society of Safety
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    • v.7 no.2
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    • pp.14-23
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    • 1992
  • A methodology for developing an object description system based on functional-structure of chemical plant is proposed. A knowledge base for chemical plant fault diagnosis is also organized in a generic fashion using the heuristic knowledge of human operators. A plant can be seen as a hierarchical set of subsystems. Each subsystem is called a SCOPE. The state of the plant and the behavior of each subsystem is managed by the SCOPES. A computer-based system based on thls methodology and knowledge base has been developed and applied to the subprocess of ethylene plant to evaluate the effectiveness of the methodology.

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A Study on the Development of Computer Aided Die Design System for Lead Frame, Semiconductor (반도체 리드 프레임의 금형설계 자동화 시스템 개발에 관한 연구)

  • Choe, Jae-Chan;Kim, Byeong-Min;Kim, Cheol;Kim, Jae-Hun;Kim, Chang-Bong
    • Journal of the Korean Society for Precision Engineering
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    • v.16 no.6
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    • pp.123-132
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    • 1999
  • This paper describes a research work of developing computer-aided design of lead frame, semiconductor, with blanking operation which is very precise for progressive working. Approach to the system is based on the knowledge-based rules. Knowledge for the system is formulated from pasticity theories, experimental results and the empirical knowledge of field experts. This system has been written in AutoLISP on the AutoCAD using a personal computer and in I-DEAS Drafting Programming Language on the I-DEAS Master Series Drafting with Workstation, HP9000/715(64). Transference of data between AutoCAD and I-DEAS Master Series Drafting is accomplished by DXF(drawing exchange format) and IGES(initial graphics exchange specification) methods. This system is composed of five modules, which are input and shape treatment, production feasibility check, strip-layout, data-conversion and die-layout modules. The process planning and Die design system is designed by considering several factors, such as complexities of blank geometry, punch profiles, and the availability of a press equipment and standard parts. This system provides its efficiecy for strip-layout, and die design for lead frame, semiconductor.

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The Implementation of the Knowledge Potal-based Knowledge Management System in University (지식포털기반 대학지식경영시스템 구축)

  • Kim, Se-Ihn
    • The Journal of Information Technology
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    • v.6 no.1
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    • pp.21-38
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    • 2003
  • The college and university is a knowledge-centered organization, and 'knowledge' is the important strategic resource. Although this organization composed entirely of the knowledge worker that is able to use the knowledge in the most efficient and effective method, our university is not enough to manage the knowledge as strategic advantage. So, we need to implement knowledge management system under knowledge community centered in students, faculty and staff. The well-designed knowledge community can produce a new value and profit that can develope the university organization. We used to the portal technology defined as a personalized, single point of access through a web browser to various information located inside and outside of an university Knowledge portal supporting the activities of knowledge community will improve the knowledge transfer in student's learning activity, the knowledge creation in faulty's research activity, the knowledge sharing amount the various communities, and the accumulation of a process knowledge in operation and management. Eventually, a redesigned knowledge portal-based system will create a new value of university.

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