• 제목/요약/키워드: knowledge of problem types

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체육교육학과 전공교육과정의 스코프 및 시퀀스 분석 (The Analysis on Scope and Sequence of Physical Education Major Curriculum In Korea Universities)

  • 이은화;김인형
    • 수산해양교육연구
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    • 제21권3호
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    • pp.436-450
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    • 2009
  • The purpose of this study is to analyze scope and sequence of undergraduate curricula in the department of physical education. For this purpose, this paper has used the types of undergraduate subjects, which are based on analysis tools on the scope and the sequence of the Department of Education major curriculum by Kim and Lee(2005). The major results of this study were as follows. First, the proportion of major content knowledge is far more pedagogical content knowledge. Second, the scope of Physical Education major curriculum is too much stressed on 'the subjects of major content' and on 'the subjects of specific area' than 'the subjects of major skills' and 'comprehensive problem solving'. Third, the Physical Education major curriculum has shown the specific sequence; introduction/foundation courses and theory courses, application courses orderly. Whileas, application course and synthesis course are slim to none.

Decision Theoretic Conflict Resolution in Rule-based Expert System

  • An, Byeong-Seok;Park, Choong-Gyoo;Kim, Soung-Hie
    • 한국국방경영분석학회지
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    • 제24권1호
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    • pp.68-87
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    • 1998
  • Techniques from decision analysis and expert system have both been extensively used in the development of computerized decision aids, although each discipline uses different approaches in knowledge (information or input) acquisition, representation, and problem solving methodology. From the perspective of many types of practical decision aiding applications, both normative decision aids and expert system technology have significant limitations. Many research efforts have been exerted toward complementing the one's deficiency with the other's possible techniques or vice versa. In this paper, among many possible complementary techniques for better decision aiding between decision analysis and expert system, we focus on the using prescriptive methodology of decision analysis which incorporates user's preference knowledge for conflict resolution in rule based expert system.

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이동 로봇을 위한 행위 기반 제어 및 학습 구조의 설계와 구현 (Design and Implementation of a Behavior-Based Control and Learning Architecture for Mobile Robots)

  • 서일홍;이상훈;김봉오
    • 제어로봇시스템학회논문지
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    • 제9권7호
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    • pp.527-535
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    • 2003
  • A behavior-based control and learning architecture is proposed, where reinforcement learning is applied to learn proper associations between stimulus and response by using two types of memory called as short Term Memory and Long Term Memory. In particular, to solve delayed-reward problem, a knowledge-propagation (KP) method is proposed, where well-designed or well-trained S-R(stimulus-response) associations for low-level sensors are utilized to learn new S-R associations for high-level sensors, in case that those S-R associations require the same objective such as obstacle avoidance. To show the validity of our proposed KP method, comparative experiments are performed for the cases that (ⅰ) only a delayed reward is used, (ⅱ) some of S-R pairs are preprogrammed, (ⅲ) immediate reward is possible, and (ⅳ) the proposed KP method is applied.

입자 유형별 형상추출에 의한 마모입자 자동인식에 관한 연구 (A study on automatic wear debris recognition by using particle feature extraction)

  • 장래혁;윤의성;공호성
    • 한국윤활학회:학술대회논문집
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    • 한국윤활학회 1998년도 제27회 춘계학술대회
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    • pp.314-320
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    • 1998
  • Wear debris morphology is closely related to the wear mode and mechanism occured. Image recognition of wear debris is, therefore, a powerful tool in wear monitoring. But it has usually required expert's experience and the results could be too subjective. Development of automatic tools for wear debris recognition is needed to solve this problem. In this work, an algorithm for automatic wear debris recognition was suggested and implemented by PC base software. The presented method defined a characteristic 3-dimensional feature space where typical types of wear debris were separately located by the knowledge-based system and compared the similarity of object wear debris concerned. The 3-dimensional feature space was obtained from multiple feature vectors by using a multi-dimensional scaling technique. The results showed that the presented automatic wear debris recognition was satisfactory in many cases application.

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입자 유형별 형상추출에 의한 마모입자 자동인식에 관한 연구 (A Study on Automatic wear Debris Recognition by using Particle Feature Extraction)

  • 장래혁;윤의성;공호성
    • Tribology and Lubricants
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    • 제15권2호
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    • pp.206-211
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    • 1999
  • Wear debris morphology is closely related to the wear mode and mechanism occured. Image recognition of wear debris is, therefore, a powerful tool in wear monitoring. But it has usually required expert's experience and the results could be too subjective. Development of automatic tools for wear debris recognition is needed to solve this problem. In this work, an algorithm for automatic wear debris recognition was suggested and implemented by PC base software. The presented method defined a characteristic 3-dimensional feature space where typical types of wear debris were separately located by the knowledge-based system and compared the similarity of object wear debris concerned. The 3-dimensional feature space was obtained from multiple feature vectors by using a multi-dimensional scaling technique. The results showed that the presented automatic wear debris recognition was satisfactory in many cases application.

과학적 창의성 관점에서 살펴본 영재교육종합 데이터베이스(GED)의 초등 과학영재교육 프로그램 특징 분석 (Analysis on Characteristic of Elementary Science-Gifted Education Winner Programs in Gifted Education Database Focusing on Scientific Creativity)

  • 윤지현;강훈식
    • 한국초등과학교육학회지:초등과학교육
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    • 제40권2호
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    • pp.145-161
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    • 2021
  • 이 연구에서는 영재교육종합 데이터베이스(GED)에서 제공하는 초등 과학영재교육 프로그램 수상작을 과학적 창의성 관점에서 분석하였다. 이를 위해 해당 분석 기준을 개발한 뒤 우수 프로그램 55개에 포함된 840개의 탐구활동을 분석하였다. 연구 결과, 과학적 창의성 요소 5가지 중, '과학적 탐구기능', '과학 지식 내용', '창의적 사고'가 많이 포함되었다. 하지만 '문제해결력'과 '공통 요소'는 비교적 적게 포함되어 있었다. 통합의 측면에서는 2가지 요소의 통합과 3가지 요소의 통합이 자주 나타났으며, 통합이 없는 유형도 자주 나타났다. 4가지 요소의 통합이나 5가지 요소의 통합은 적게 나타났다. '과학 지식내용', '과학적 탐구기능', '창의적 사고' 등이 다른 요소들과 함께 통합되는 빈도가 높았다. 그러나 '공통 요소' 또는 '문제해결력'이 다른 요소와 통합되는 경우는 적게 나타났다. 이에 대한 교육적 시사점을 논하였다.

계산기를 활용한 초등학교 수학과 교수-학습 모형 개발 (A Design for Instructional Models to Use Calculators in Elementary School Mathematics)

  • 안병곤;김용태;임해경;류근봉
    • 한국초등수학교육학회지
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    • 제4권1호
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    • pp.1-19
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    • 2000
  • 제7차 교육과정 운영에 대하여 교육부(현 교육인적자원부)에서는 모든 교과의 수업에서 10 % 정도의 정보 통신 기자재 활용을 적극적으로 사용하도록 하오 있다. 이것은 초등학교 수학과에서 활용할 수 있는 가장 현실적인 도구가 계산기임을 말한다. 현재의 학교 학습 환경에서 학생들이 보다 수학에 흥미를 갖고, 단순히 계산만을 위한 것이 아니라면 누구나 쉽게 접근할 수 있는 도구이기 때문이다. 이미 중등학교에서 계산기나 컴퓨터가 그래프나 함수, 통계 처리와 같은 영역에서 수업에 활발하게 활용되고 있다. 그러나 초등학교에서의 계산기 활용에는 많은 어려움이 있다. 본 연구는 계산기를 활용할 수 있는 문제의 유형과 그에 따른 교수-학습 모형을 제시한 것이다. 이는 교수-학습의 전개 계획의 절정이나 수업 활동의 기본 특성에 대한 결정을 할 때 도움이 될 것으로 사료된다. 또한 새로운 학습 매체의 활용은 학습에 대한 학생들의 흥미와 자신감을 주고 긍정적 자아감을 고취시킬 것이다.

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Complementary and Alternative Medicine Among Older Adults in the United States: Current Evidence and Future Directions

  • Yoon, Saun-Joo L.
    • Perspectives in Nursing Science
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    • 제3권1호
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    • pp.73-89
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    • 2006
  • Complementary and alternative medicine has gained popularity and respectability in recent years in the United States. Since aging is often associated with chronic health conditions that commonly lead to physical and psychosocial disabilities (e.g., depression, functional and/or cognitive disabilities, and decreased quality of life), older adults often seek options to maintain health and treat chronic conditions as an adjunct to conventional medical care. Herbal products, the most commonly used among various complementary and alternative medicines (CAM), should be used with caution due to potential herbal-drug interactions (related to polypharmacy) and herbal-disease interactions (related to comorbidities). Five of the most common chronic conditions in older adults are chronic pain, cardiovascular problems, hypertension, diabetes, and chronic lung problems. A high rate of falls or risk of falling is also a problem unique to this older population. For these conditions, only a few types of CAM (e.g., acupuncture, qi gong, tai chi) were tested, with promising results. However, in spite of evidence supporting the use of certain types of CAM to alleviate some common chronic conditions, findings are limited in terms of other types of CAM tested and both short and long-term effects. More rigorous clinical trials of various CAM types are thus warranted to advance scientific knowledge and establish evidence-based practices to care for the growing number of older adults who deserve to have a better quality of life.

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Types of Lexicographical Information Needs and their Relevance for Information Science

  • Bergenholtz, Henning;Agerbo, Heidi
    • Journal of Information Science Theory and Practice
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    • 제5권3호
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    • pp.15-30
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    • 2017
  • In some situations, you need information in order to solve a problem that has occurred. In information science, user needs are often described through very specific examples rather than through a classification of situation types in which information needs occur. Furthermore, information science often describes general human needs, typically with a reference to Maslow's classification of needs (1954), instead of actual information needs. Lexicography has also focused on information needs, but has developed a more abstract classification of types of information needs, though (until more recent research into lexicographical functions) with a particular interest in linguistic uncertainties and the lack of knowledge and skills in relation to one or several languages. In this article, we suggest a classification of information needs in which a tripartition has been made according to the different types of situations: communicative needs, cognitive needs, and operative needs. This is a classification that is relevant and useful in general in our modern information society and therefore also relevant for information science, including lexicography.

Dynamics of Industry-wide versus Firm-specific Benefits when Firms Collaborate on Building an Industry Infrastructure

  • Kim Bowon;Lee Seungchul
    • Management Science and Financial Engineering
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    • 제11권1호
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    • pp.25-48
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    • 2005
  • Firms often collaborate on building an infrastructure, which benefits all the firms in the industry, although in unequal magnitudes. Then a difficult and tricky issue is concerned with 'free riding.' Should there be only 'common, i.e., industry-wide' benefits in such collaboration, the literature indicated that the free rider problem is unavoidable, In this paper, however, we suggest that while collaborating, the firm also learns firm-specific knowledge, experience, and know-how, which can be directly utilized for its own internal improvement. That is, the collaboration between firms provides them with not only 'industry-wide,' but also 'firm-specific' benefits, Our analysis shows that if there indeed exist two types of benefits simultaneously, depending on the balance between the two, the free rider problem can be mitigated or even eliminated.