• 제목/요약/키워드: knowledge model

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원전 비상 발전기의 고장진단시스템을 위한 클래스 및 인과관계 모형 설계 (Design of Class and Causality Model for Diagnosis System of an Emergency Generator in Nuclear Plant)

  • 하창승;박종일
    • 한국컴퓨터정보학회논문지
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    • 제11권3호
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    • pp.125-132
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    • 2006
  • 원자력 발전소에서 비상사태가 발생하는 경우를 대비하여 비상 발전기의 고장진단시스템을 구축할 필요가 있다. 고장진단시스템의 지식베이스를 구현하기 위해서는 클래스와 인과관계 모형을 설계해야 한다. 클래스와 인과관계 모형을 설계하기 위해 먼저 진단대상을 선정하고, 정상과 비정상의 상태정보를 조사하여 시스템의 작동 원리를 외부지식인 개체와 활동으로 추출한다. 추출된 외부지식을 내부지식으로 표현하기 위해 개체를 클래스로 정의하고 활동을 인과관계로 변환한다. 인과관계의 반복적인 설정과 타당성 검토를 통해 지식베이스에 이식할 수 있는 수준의 진단지식을 완성한다. 본 연구는 결정테이블을 통한 설계 모형의 독립성을 고려하였기 때문에 이식성 높은 지식베이스의 구현이 가능하다.

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뇌 기반 과학 교수 학습 모형을 적용한 "슬기로운 생활" 수업의 효과 (The Effects of a Brain-Based Science Teaching and Learning Model on ${\ulcorner}$Intelligent Life${\lrcorner}$ Course of Elementary School)

  • 임채성;하지연;김재영;김남일
    • 한국초등과학교육학회지:초등과학교육
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    • 제27권1호
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    • pp.60-74
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    • 2008
  • The purpose of this study was to examine the effects of a brain-based science teaching and learning model on the science related attitudes, scientific inquiry skills and science knowledge of the 2nd graders in Intelligent Life course. For this study, 117 elementary students from four classes of the 2nd grade in Seoul were selected. In the comparison group, traditional instruction was implemented and in the experimental group, instruction according to brain-based science teaching and learning model was implemented for four weeks. The results of this study were as follows : There were little differences between the comparison and experimental groups in terms of the science related attitudes except for the sub-domains of interest and curiosity. And brain-based science teaching and learning model programs improved a few scientific inquiry skills, especially observation and classification. In addition, the experimental groups showed a positive effect on science knowledge. In conclusion, brain-based science teaching and learning model programs were more effective in improvement of the science related attitudes, scientific inquiry skills and science knowledge of elementary students.

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모델기반 시스템엔지니어링을 활용한 해양플랜트 안전시스템(SIS, Safety Instrumented System)의 신뢰도 분석 및 안전설계 지식 모델링 (Knowledge Modeling of Reliability Analysis and Safety Design for Offshore Safety Instrument System with MBSE (Model-Based Systems Engineering))

  • 배정훈;정민재;신성철
    • 대한조선학회논문집
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    • 제55권3호
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    • pp.222-235
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    • 2018
  • The hydrocarbon gas leak in the offshore plant can cause large accidents and lead to significant damages to human, property and environment. For prevention of fire or explosion accidents from gas leak, a SIS(Safety Instrumented System) should be installed. In the early stage of the offshore design, required SIL(Safety Integrated Level) is determined and reliability analysis is performed to verify the design in reliability aspects. This study collected data, information related to reliability analysis and created knowledge model of safety design for the offshore system with MBSE(Model-Based Systems Engineering) concept. Knowledge model could support safety engineer's design tasks as the guidance of reliability analysis procedure of safety design and make good conversation with other engineers in yard, class, company, etc.

지식기반 객체지향 공간 데이터베이스 시스템 (Knowledge-Based Approach for an Object-Oriented Spatial Database System)

  • Kim, Yang-Hee
    • 지능정보연구
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    • 제9권3호
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    • pp.99-115
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    • 2003
  • 본 논문은 지식 기반 객체지 향 공간 데이터베이스시스템 KOBOS를 제안한다. 객체지향 공간 데이터베이스 시스템의 데이터 모델링과 근접 질의답변에 지식기반 접근법을 도입한다. 공간객체와 근접 공간 연산자를 다루기 위해 다음과 같은 세 단계 객체지향 데이터 모델을 제안하고 있다: (1) 공간 형상 모델; (2) 공간 객체 모델: (3) 내부 기술 모델. 근접 공간 연산자의 범위는 공간 타입 추상 계층으로 알 수 있다. 또한 객체지향 공간 질의어인 SOQL을 제안한다. SOQL은 공간 객체의 다양한 출력과 공간 및 비 공간 객체의 검색을 수행할 수 있는 통합 기능을 제공해준다. 효율적인 혼합 질의 처리를 위하여, 하향 공간 질의 처리 방법을 이용하여 처리해 준다.

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Leveraging Accumulated Customer Knowledge in Electronic Knowledge Repositories for Superior Customer Service

  • Choi, Sujeong;Ryu, Il
    • Asia pacific journal of information systems
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    • 제25권3호
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    • pp.519-539
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    • 2015
  • Customers are now demanding ever better service from customer service representatives (CSRs) to create superior customer service. Accordingly, CSRs are required to have more specialized knowledge and abilities of customer service. This study examines the roles of accumulated customer knowledge in electronic knowledge repositories (EKRs), which a firm has developed for customer service over time to enhance CSRs' work capabilities and work performance, in the context of call centers. To test the proposed research model and hypotheses, we conducted LISREL analysis using 261 responses collected on CSRs working for inbound call centers. The key results are as follows. First, accumulated customer knowledge in EKRs enhances CSRs' knowledge utilization and service expertise during the customer contact. Second, CSRs' knowledge utilization reinforces service expertise. Finally, service quality depends on CSRs' knowledge utilization and service expertise, but it is not directly related to accumulated customer knowledge. Overall, the findings suggest that accumulated customer knowledge in EKRs enhances CSRs' knowledge utilization and service expertise, and thereby leading to superior service quality.

A Study on the Effect of Knowledge Sharing and Utilization on Field Project Performance

  • Lee, Won-Hee;Moon, Jae-Young
    • 한국컴퓨터정보학회논문지
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    • 제23권8호
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    • pp.151-156
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    • 2018
  • As the globalization of the global economy accelerates, entrepreneurs are increasingly interested in knowledge management processes such as sharing, utilizing, and learning within organizations to create and scale new knowledge to achieve sustainable growth and differentiated competitive advantage. Recently, domestic construction companies have been facing difficulties due to many unstable factors including domestic and foreign factors due to technological power enhancement and the decline of the construction industry due to the government's real estate regulation policy and the ongoing recession. The purpose of this paper is to investigate the effect of knowledge sharing and utilization on the performance of knowledge sharing and utilization in the field organization of domestic construction companies in this market situation. In this study, the structural equation model was used for empirical analysis. As a result of this study, it was confirmed that all variables except for the relationship between organizational culture and knowledge sharing and utilization had a positive effect.

보건간호사의 의사결정 유형과 지식 유형에 관한 실증연구 (Public Health Nurses유 Decision Making Models and Their Knowledge Structure)

  • 최희정
    • 대한간호학회지
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    • 제31권2호
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    • pp.328-339
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    • 2001
  • The purpose of this study was to describe decision making model of 180 public health nurses in Korea and their knowledge structure for decision making. The differences of decision making models by nurse's knowledge structure were also tested. Research concepts were measured using the instrument based on systemic and interpretive decision making approaches that were developed by Lauri & Salantera (1995). The results were as follows. 1. The public health nurses turned to, most commonly, a mixed practical-theoretical knowledge structure (45.9%), followed by practical knowledge (32%) and theoretical knowledge (22.1%). 2. The six different decision making models were identified. These were named for decision making theories and nursing process. These were client-oriented decision making, rule-oriented systemic decision making, wholistic and intuitive decision making, decision making depending on subjective view and experience, systemic decision making for defining problems. 3. The public nurses who had practical and practical-theoretical knowledge structure and community health practitioner (CHP) retold that decision making depends on subjective view and experience. Also the public health nurses who had 5~19 years clinical experience represented hypothetico-deductive decision making for defining problems.

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정부출연 연구기관의 지식관리 성과 측정모형 개발을 위한 탐색적 연구 (An Exploratory Study of the Development of a Performance Measurement Model for Knowledge Management for use by Government Sponsored Research Institutes)

  • 정택영;정해용;최광돈
    • 디지털융복합연구
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    • 제7권3호
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    • pp.61-74
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    • 2009
  • This research reviewed previous research related to Performance Measurement Models of Knowledge Management (PMMKM) in order to integrate their findings with more recent research and construct a new PMMKM. This new hypothetical PMMKM consists of an input sector, a process sector, an outcome sector, and an infrastructure sector. Each sector has three measurement items with the exception of the infrastructure sector which has two. Empirical analyses testing the overall performance model validity of the hypothetical PMMKM were favorable. However, it show be noted that the "share process" and "utilization process" items in the process sector merged into one single item. The same is true with the "individual outcome" and "organization outcome" items in the outcome sector found one single item. The study's results reveal three implications with respect to performance. First, there are derived integrated performance measurement sectors and items based on overall management process of knowledge management, which can be practically applied to the government related research entities. This became apparent after extensive review or previous theoretical studies related to the public sector and private sector. Second, weighted performance measurement of knowledge management using AHP (Analytic Hierarchy Process) Analysis makes it possible to propose PMMKM in government sponsored research institutes. Finally, measuring performance to management knowledge, as shown in this study, will prove useful for inside and outside experts who propose specific guidelines and methodologies for Knowledge management at government sponsored research institutes.

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효과적 지식창출을 위한 조직능력 요건: 퀴놀론계 항생제 개발 사례를 중심으로 (Organizational Capabilities for Effective Knowledge Creation: An In-depth Case Analysis of Quinolone Antibacterial Drug Discovery Process)

  • 이춘근;김인수
    • 지식경영연구
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    • 제2권1호
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    • pp.109-132
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    • 2001
  • The purpose of this article is to develop a dynamic model of organizational capabilities and knowledge creation, and at the same time identify the organizational capability factors for effective knowledge creation, by empirically analyzing the history of new Quinolone antibacterial drug compound (LB20304a) discovery process at LG, as a case in point. Major findings of this study are as follows. First, in a science-based area such as drug development, the core of successful knowledge creation lies in creative combination of different bodies of scientific explicit knowledge. Second, the greater the difficulty of learning external knowledge, the more tacit knowledge is needed for the recipient firm to effectively exploit that knowledge. Third, in science-based sector such as pharmaceutical industry, the key for successful knowledge creation lies in the capability of recruiting and retaining star scientists. Finally, for effective knowledge creation, a firm must keep its balance among three dimensions of organizational capabilities: local, process, architectural capabilities.

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용접 결함 진단 전문가시스템의 개발 (Development of Expert System for Diagnosis of Weld Defects)

  • 박주용
    • Journal of Advanced Marine Engineering and Technology
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    • 제20권1호
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    • pp.13-23
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    • 1996
  • Weld defects degrade the strength and safety of astructure and are resulted from the various cases. The complexity of causal relation of weld defects requires an expert for the analysis of weld defects and the measures counter to them. An expert system has the intelligent functions such as the representation of knowledge and the inference. On this research, weld defect are systematically analysed and their causal model is developed. This information is saved to the knowledge base. The suitable inference algorithm for the diagnosis of weld defects is developed and realized with C++ programming.

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