• 제목/요약/키워드: logical problem

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Optimal Placement of CRNs in Manned/Unmanned Aerial Vehicle Cooperative Engagement System

  • Zhong, Yun;Yao, Peiyang;Wan, Lujun;Xiong, Yeming
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제13권1호
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    • pp.52-68
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    • 2019
  • Aiming at the optimal placement of communication relay nodes (OPCRN) problem in manned/unmanned aerial vehicle cooperative engagement system, this paper designed a kind of fully connected broadband backbone communication topology. Firstly, problem description of OPCRN was given. Secondly, based on problem analysis, the element attributes and decision variables were defined, and a bi-level programming model including physical layer and logical layer was established. Thirdly, a hierarchical artificial bee colony (HABC) algorithm was adopted to solve the model. Finally, multiple sets of simulation experiments were carried out to prove the effectiveness and superiority of the algorithm.

수학 교과에서의 추론 유형의 문제에 관한 탐색 -집합과 명제, 수열 영역을 중심으로- (An Investigation on the Reasoning Types of Mathematical Problems on the Content of 'Set and Statement' and 'Sequences')

  • 황혜정;김슬비
    • 한국수학교육학회지시리즈E:수학교육논문집
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    • 제28권4호
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    • pp.529-552
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    • 2014
  • 본 연구에서는 수학에서 추론의 중요성과 그 역할에 의미를 두고, 고등학교 수학 내용(문제)의 분석을 통해 학생들이 제공받는 추론의 유형이 얼마나 높은 수준, 즉 다양한 것인지에 대해 살펴보고자 한다. 현재, '수학 II' 교과목은 2009 개정에 따른 교과목들 중에서 '수학 I' 교과목을 이수한 후 선택하는 것(신이섭, 2011)으로, 중등 수학에서 가장 심도 있는 학습 내용을 다룬다고 볼 수 있다. 이러한 점에 감안하여 본 연구에서는 '수학 II' 교과목의 내용을 중심으로 Johnson, et al.(2010)의 여섯 가지 추론 유형을 재구성하여 이를 바탕으로 현행 9종의 모든 교과서에 수록된 추론 문제의 정도(비율) 및 유형을 파악하고자 한다. 이로써, 학생들에게 어느 정도의 추론 활동의 기회가 제공되고 있는지 살펴보고, 수학 수업에서의 추론 능력 신장의 긍정적 가능성을 가늠해 보고자 한다.

문제해결자의 정신용량과 문제의 요구정신용량이 문제해결에 미치는 영향 (The Effects of Mental Capacity and Mental Demand on Problem Solving)

  • 안수영;권재술
    • 한국과학교육학회지
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    • 제16권2호
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    • pp.134-145
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    • 1996
  • The purpose of this study was to investigate effects of mental capacity and mental demand on problem solving. Two kinds of tests were used for this study. One was FIT 752 test which required general knowledge, the other was Ohm's law test which required domain specific knowledge. The items of each test had the same logical structure and content knowledge but had different sizes of mental demand. The results of the study were summarized as follows: As mental demand of the items increased, the success rates decreased. The analysis of the hierarchical relation among items was that items with large mental demand were higher than those with small demand or at least the same level. According to the results, mental of an item was a significant factor affecting solving the problem. Effect of mental capacity on problem solving was different according to the kind of required knowledge to solve. Mental capacity was a significant factor affecting solving the FIT 752 task which required general knowledge. On the contary, solving the task which required domain specific knowledge, the results were different depending on subjects' chunk size. The results of problem solving of the groups which had small chunk size were that mental capacity was appeared a significant factor. However, results of problem solving of groups which had large chunk size were that mental capacity was not.

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한국과 미국 6학년 학생들의 직관적 사고에 의한 수학 문제해결 분석 (An Analysis on the Mathematical Problem Solving via Intuitive Thinking of the Korean and American 6th Grade Students)

  • 이대현
    • 한국수학교육학회지시리즈A:수학교육
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    • 제55권1호
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    • pp.21-39
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    • 2016
  • This research examined the Korean and American $6^{th}$ grade students' mathematical problem solving ability and methods via an intuitive thinking. For this, the survey research was used. The researcher developed the questionnaire which consists of problems with intuitive and algorithmic problem solving in number and operation, figure and measurement areas. 57 Korean $6^{th}$ grade students and 60 American $6^{th}$ grade students participated. The result of the analysis showed that Korean students revealed a higher percentage than American students in correct answers. But it was higher in the rate of Korean students attempted to use the algorithm. Two countries' students revealed higher rates in that they tried to solve the problems using intuitive thinking in geometry and measurement areas. Students in both countries showed the lower percentages of correct answer in problem solving to identify the impact of counterintuitive thinking. They were affected by potential infinity concept and the character of intuition in the problem solving process regardless of the educational environments and cultures.

중등영재학생들의 수학적 사고의 선호도와 논리적 문제의 해결능력에 관한 연구

  • 박홍경;이우동
    • 한국산업정보학회:학술대회논문집
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    • 한국산업정보학회 2009년도 춘계학술대회 미래 IT융합기술 및 전략
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    • pp.101-106
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    • 2009
  • 수학적 사고의 입장에서 중등학생들이 수학적 문제해결에 논리적 사고와 직관적 사고가 어떻게 작용하는지를 연구하는 것은 수학교육에서 중요하고도 흥미로운 과제의 하나이다. 본 연구의 주된 목적은 중등학교 영재학생을 대상으로 이러한 문제를 조사하는 것이다. 특히 이들 중등영재학생들의 논리적 사고와 직관적 사고에 대한 선호도와 논리적 문제의 문제해결능력 사이의 관계를 조사한다.

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품질기능전개의 확장에 관한 연구 (An Extension of Quality Function Deployment)

  • 박영택
    • 품질경영학회지
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    • 제25권4호
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    • pp.27-49
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    • 1997
  • Quality function deployment is an interdisciplinary team process of listening to customers to learn exactly what they want, and then using a logical system to determine how best to fulfill those needs with available resources. It is examined how to extend quality function deployment in this paper. The Pugh concept selection method, ACE(Attribute Categorization and Evaluation) Matrix, and an inventive problem solving method called TRIZ are discussed in relation with quality function deployment.

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온톨로지 저장소를 이용한 설계 지식의 저장과 회수 (Storing and Querying of Design Knowledge Using Ontology Repository)

  • 지경환;양정진
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2006년도 춘계학술대회 논문집
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    • pp.337-338
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    • 2006
  • The requirement to reuse a design knowledge have been enlarged with the automation of a design system. A design knowledge gives logical and technical meanings to design data of a problem area. The representation of the knowledge is distributed and developed independently. For this reason, we need a general methodology with a semantic interoperability of design knowledge. In this paper, we accept previous requirements by using semantic query system with ontology repository.

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베이즈의 균일분포에 관한 소고 (On Bayes' uniform prior)

  • 허명회
    • 응용통계연구
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    • 제7권2호
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    • pp.263-268
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    • 1994
  • 베이스(Thomas Bayes)는 역사적인 1764년 논문에서 공 W의 위치 $\theta$에 대한 추론 문제를 생각한 바 있다. 이 때 그는 $\theta$에 대한 사전(prior) 분포로서 균일(uniform) 분포를 가정하였는데, 본 소고에서는 이 사전분포가 단순한 주관적 확률이 아닌 논리적 확률로 간주될 수 있음을 보일 것이다.

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계층화 의사결정법에 의한 공공사업 투자안 평가에 관한 연구 (Evaluation Of Public Investment Project Using AHP)

  • 김형준;이공섭;김영민
    • 산업경영시스템학회지
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    • 제18권35호
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    • pp.123-130
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    • 1995
  • The analytic hierarchy process(AHP) is a multi-criteria decision methodology developed by T.L.Saaty(1980). The AHP presents flexible, easily understood wry to assist the decision-marker in formulating his problem in a logical and rational manner. This paper addresses the concept of AHP and its application in the evaluation of nuclear and coal-fired power generations.

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AHP 기법을 이용한 대안평가에 관한 연구 (A Study on Ranking Alternatives Using Analytic Hierarchy Process)

  • 김형준
    • 산업경영시스템학회지
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    • 제15권25호
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    • pp.33-40
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    • 1992
  • The analytic hierarchy process(AHP) is a multi-criteria decision methodology developed by T. L. Saaty(1980). The AHP presents flexible, easily understood wily to assist the decision-maker in formulating his problem in a logical and rational manner. This paper addresses the concept of AHP and its application in the selection of radioactive waste disposal concept in Korea.

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