• 제목/요약/키워드: Knowledge based systems

검색결과 2,129건 처리시간 0.033초

가정 교과교육학 지식 관점에서 본 중등 가정과교사 임용시험 문항 분석 (An Analysis of the Items for the Home Economics Teacher Selection Test from the Perspective of the Pedagogical Content Knowledge in Home Economics Education)

  • 유난숙
    • 대한가정학회지
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    • 제49권1호
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    • pp.1-16
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    • 2011
  • This study analyzed the items for the Home Economics teacher selection test, which were carried out through the school year 2002 to 2010, based on Pedagogical Content Knowledge in Home Economics Education (H-PCK). Two frameworks were used: (1) H-PCK matrix transformed from the Content Knowledge in Home Economics Education (H-CK) and the Pedagogical Knowledge; (2) Five components of H-PCK. The results of this study were as follows: (1) The test items were classified into H-CK items and H-PCK items from the H-PCK matrix analysis. (2) While the number of items on knowledge of teaching strategies was the highest, no item on knowledge of understanding students was identified. Since the test can be considered as Measurement-Driven Instruction, it will have backward influences on the teacher education program in universities. Thus, if promising and capable new Home Economics teachers are to be recruited, the test items should include all the components of H-PCK.

Research on Ontology Constructing by Delphi Technique (with Modeling Micheogul Tourist Resort)

  • Kim, Young-Ick;Kim, Min-Cheol;Kang, Han-Seop
    • 한국전자거래학회:학술대회논문집
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    • 한국전자거래학회 2005년도 e-Biz World Conference 2005
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    • pp.286-292
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    • 2005
  • Continual attempt to accumulate and apply information eventually gives birth to the concept of the 'Semantic Web'. Thus, the 'Semantic Web' can be defined as a product of mankind's desire to standardize information. A term of knowledge is used as information or data in computer science. These are regarded and are divided sometimes each other in terminologies that have similar meaning. If it is divided, knowledge is different from information. However, some kind of information in Knowledge Representation is called knowledge often if it can be expressed in computing system. Therefore, knowledge representation can talk as information representation. The purpose of the study is systematizing knowledge through knowledge representation that uses Delphi technique and ontology is designed by utilizing assistance editor called protege-2000 to construct semantic web environment's ontology. Level of interest regarding the construction and evaluation of search systems based on ontology is set to increase. If defined well, semantic can reflect human's thinking to knowledge information on web. Furthermore systematizes knowledge, search of information and comprehension about Jeju tour using present computer may be done intelligence.

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배전계토에서의 안전도 평가를 위한 전문가 시스 (An Expert System for Security Assessment in Distribution System)

  • Park, Byoung-youn;Kim, Se-Ho;Moon, Young-Hyun
    • 대한전기학회논문지
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    • 제43권2호
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    • pp.179-188
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    • 1994
  • This paper deals with implementation of an expert system to obtain an optimal plan of load transfer for fault restoration with the capability of security monitoring and assessment in distribution systems. Based on the technique of load transfer tree analysis, the proposed expert system can afford to assist system operators in proposing an optimal plan of load transfer for fault restoration, In paticular, an application of the proposed ES to practical distribution systems yields an optimal load transfer plan which ensures system security by considering security assessment for contingency of feeders and main transformers in the knowledge based sense.

CiNet: GUI based Literature analysis tool using citation information

  • Lee, Se-Jun;Lee, Kwang-H.
    • Bioinformatics and Biosystems
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    • 제2권1호
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    • pp.33-36
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    • 2007
  • Scientific literature is the most reliable and comprehensive source of knowledge for scientific and biomedical information. Citation information in the literature is also reliable source for linking between literatures. We proposed CiNet, a graphic user interface based tool that extracts the trend of the research using citation information. We can navigate related literatures and extract keywords from the linked literature using this tool. These extracted keywords will be helpful to researchers who want to survey the information.

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Development of Automated Analysis System for Model Plane Engine Using Fuzzy Knowledge Processing

  • Lee, Joon-Seong;Lee, Shin-Pyo
    • 한국지능시스템학회논문지
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    • 제12권2호
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    • pp.171-176
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    • 2002
  • This paper describes a new automated analysis system for model plane engine. An automatic finite element (FE) mesh generation technique, which is based on the fuzzy knowledge processing and computational geometry technique, is incorporated into the system, together with one of commercial FE analysis codes, ANSYS, and one of commercial solid modelers, Designbase, The system allows a geometry model of concern to be automatically converted to different FE models, depending on physical phenomena of plane engine to be analyzed, i.e. deformation analysis, thermal analysis and so on. The FE models are then automatically analyzed by the FE analysis code. Among a whole process of analysis, the definition of a geometry model, the designation of local node patterns, the assignment of material properties and boundary conditions onto the geometry model are only the interactive processes to be done by a user. The interactive operations can be processed in a few minutes. The other processes which are time consuming and labour-intensive in conventional CAE systems are fully automatically performed in a personal computer environment. The proposed analysis system is successfully applied to evaluate a model plane entwine.

온라인 전력계통 고장 진단 시스템 개발 (On Line Fault Diagnosis in the Large Power System)

  • 김정년;백영식;서규석
    • 대한전기학회논문지:전력기술부문A
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    • 제54권5호
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    • pp.205-211
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    • 2005
  • Recently, power system is getting larger and more complex. When the complex power system has a problem, it is very difficult even for the experts to find out where the problem is and to make a timely decision by operators. There have been many studies on these problems but the results are not good enough for applying to real power system. Therefore, power system operators always had to judge the exact state of power system and be preparative for the problems that can occur later. We developed new methods that can be applied to complex power system by dividing the system into small modules. By using 'module', we can combine small modules together to make complex power systems and the knowledge base that is applied to fault diagnosis system. As a result, compared to previously developed diagnosis products, operation time is shortened and the knowledge base is become simpler and clearer, which made online usage capable. This system can be used as a complementary measurement that helps the operator from making any mistakes.

Improvement of FTA for Completeness, Review and Knowledge Transfer - Introducing Strategy and Context Nodes in GSN and Reason Node -

  • Yoshioka, Nasa;Shirasaka, Seiko
    • 시스템엔지니어링학술지
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    • 제11권2호
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    • pp.125-135
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    • 2015
  • Various methods have been used for safety and reliability as it becomes more difficult to ensure safety owing to the increasing complexity and scale of systems. This study aims at making it easier and more efficient to discuss risks and countermeasures for completeness, review, and knowledge transfer by improving methods to create fault tree analyses which focus on the GSN [1], which are among the methods used to describe assurance cases. More specifically, the purpose of this study is to incorporate strategy and context, GSN concepts, along with reason, which is a new concept, into FTA; the study focuses on three points. One point is support for the safety designer to draw a mutually exclusive and collectively exhaustive (MECE) FTA. The second is to make it easier to understand diagrams and meanings of FTA compared with the usual methods. The third is to make creating an FTA more efficient and to pass on existing know-how. Eventually, FTA can achieve completeness, review, and knowledge transfer. An introduction is provided in the first section. Next, the methodology covered in this paper is explained in the second section. The third section describes the proposed notation method based on two proposals made in this paper. In the fourth and fifth sections, results and discussion are provided, respectively. Finally, in the sixth section, conclusions are described.

전자적 파트너십에서 공급자의 전략적 혜택 창출을 위한 협업의 효과에 관한 연구 (A Study of Effect of Collaboration for Supplier's Strategic Benefits in Electronic Partnerships)

  • 김진완;김유일;홍태호
    • 한국정보시스템학회지:정보시스템연구
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    • 제17권4호
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    • pp.341-367
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    • 2008
  • This study propose a model relating supplier's use of IOIS(Inter-Organizational Information Systems) to strategic benefits through extension of Subramani's research model. In extended model, collaboration serves as a safeguard for relationship-specific intangible asset. Specifically, we evaluate how two patterns of IOIS use by supplier(exploitation and exploration) relate to two specific types of relationship-specific intangible asset(business process specificity and domain knowledge specificity), which in turn are posited to promote collaboration and strategic benefits. To explore the current study, questionnaire survey was conducted on 72 first-tier supplier firms in the manufacturing industry. Based on the survey results, we posits the following : (1) Each pattern of IOIS use directly promotes a specific type of relationship-specific intangible asset. The path of the relationship between IOIS use for exploitation and domain knowledge specificity is positive but not significant. The other paths are positive and significant. (2) Both types of relationship-specific intangible asset have a positive and significant impact on collaboration. (3) Domain knowledge specificity influences on strategic benefits but business process specificity does not have an effect on them. (4) Collaboration affects supplier's strategic benefits. These findings provide a deeper understanding of the mechanism of how the pattern of IOIS use can result in strategic benefits for supplier firms.

The Role of Internal and Network Constraints on Alliance Ambidexterity Decisions in Technology Intensive Industries

  • Vlas, Radu;Vlas, Cristina
    • Asia pacific journal of information systems
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    • 제26권2호
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    • pp.299-321
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    • 2016
  • Previous studies on strategic alliance formation have largely overlooked the effects that organizations' routine development can have on the relationship between organizations' network position and their alliance ambidexterity strategy. This study extends ambidexterity research by adding internal and network perspectives and examining their cumulative effects on alliance ambidexterity. We first acknowledge the interplay between organizations' internal knowledge exploration/exploitation strategies and organizations' alliance ambidexterity and determine that organizations with a high level of internal knowledge breadth are more likely to make focused alliance decisions. Second, our analysis of 145 US-based information technology organizations with an active alliance behavior reveals that having well-formed routines as a result of previous collaborations strengthens the tendency of brokerage organizations to follow alliances that focus on either exploration or exploitation. Although most alliance studies have commonly argued in favor of an ambidextrous approach, this study provides critical evidence that both internal knowledge exploration/exploitation strategies and development of routines constrain organizations' alliance formation decisions, guiding them towards a more focused approach.

개인화된 감정 캐릭터 에이전트의 설계 (The Implementation of the Personalized Emotional Character Agent)

  • 백혜정;박영택
    • 정보처리학회논문지B
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    • 제8B권5호
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    • pp.485-492
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    • 2001
  • 요즘 소프트웨어를 개발하는데 인간 친화적인 인터페이스의 일환으로 캐릭터 에이전트를 사용하고 있다. 본 논문에서는 현재 상황과 사용자의 행위에 따라 캐릭터의 감정을 생성하고 표현하는 연구를 수행하였다. 본 논문에서는 사용하고 있는 감정 추론 방법은 인공지능 분야에서 문제해결을 위해 널리 사용하고 있는 블랙보드 기반의 인지 모형을 사용하였다. 블랙 보드 추론기관은 감정을 추론하는데 필요한 규칙으로 이루어진 감정 지식원(knowledge source)은 독립성을 유지할수 있으며, 새로운 감정 지식원들을 편리하게 추가 삭제 할 수 있다. 이는 캐릭터 에이전트에 유연성을 부여함으로써 적용 시스템에 맞춰 다양하게 적용할 수 있다. 또한 본 논문에서는 캐릭터 에이전트는 각 사용자의 성향과 행위를 학습하여 이를 기반으로 캐릭터의 감정을 생성한다. 이처럼 사용자의 과거 행위 정보를 모델링하여, 이를 기반으로 생성함으로써, 같은 상화이더라도 사용자에 따라 추론되어지는 감정이 달라진다. 즉, 주어진 상황뿐 아니라 사용자에 따라 생성되는 감정이 달라지는 개인화 감정 엔진을 연구한 것이다.

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