• KIEE International Transactions on Power Engineering
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• 제4A권4호
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• pp.243-253
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• 2004

As deregulation evolves, pricing electricity becomes a major issue in the electric power industry. Participants in the competitive marketplace are able to improve their profits substantially by effectively pricing the electricity. In this paper, game theory is applied to analyze price-clearing in the generation bidding competition with the competition modeled as the non-cooperative and complete information game. The result of this analysis can be useful in understanding spot price-clearing of electricity as well as GENCOs' strategic behavior in the competitive electricity market.

• 한국게임학회 논문지
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• 제19권2호
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• pp.45-54
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• 2019

본 연구에서는 장애이해교육으로서의 게임화된 장애체험활동의 효과를 알아보기 위해, 초등학생을 대상으로 게임화된 수업을 실시하고 장애에 대한 태도에 미치는 영향을 알아보았다. 중재는 장애아동과 일반아동이 함께 하는 통합체육 수업으로 내용은 장애인 스키와 관련한 영상시청, 스키장비 체험, 장애/비장애 아동간의 협력적 게임 등이 포함되었다. 비교집단이 있는 사전, 사후 준실험연구를 실시한 결과, 비교집단에 비해 실험집단의 장애에 대한 태도가 긍정적으로 변화한 것으로 나타났다.

• ETRI Journal
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• 제44권6호
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• pp.925-935
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• 2022

In this study, we propose a limited feedback-based frequency divided group beamforming with sparse space-frequency transmit diversity coded orthogonal frequency division multiplexing (OFDM) system for ultrareliable low latency communication (URLLC) scenario. The proposed scheme has several advantages over the traditional hybrid beamforming approach, including not requiring downlink channel state information for baseband precoding, supporting distributed multipoint transmission structures for diversity, and reducing beam sweeping latency with little uplink overhead. These are all positive aspects of physical layer characteristics intended for URLLC. It is suggested in the system to manage the multipoint transmission structure realized by distributed panels using a power allocation method based on cooperative game theory. Link-level simulations demonstrate that the proposed scheme offers reliability by achieving both higher diversity order and array gain in a nonline-of-sight channel of selectivity and limited spatial scattering.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1999년도 제14차 학술회의논문집
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• pp.292-297
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• 1999

Evolving in artificial agent is an extremely difficult problem, but on the other hand, a challenging task. At present the studies mainly centered on single agent learning problem. In our case, we use simulated soccer to investigate multi-agent cooperative learning. Consider the fundamental differences in learning mechanism, existing reinforcement learning algorithms can be roughly classified into two types-that based on evaluation functions and that of searching policy space directly. Genetic Programming developed from Genetic Algorithms is one of the most well known approaches belonging to the latter. In this paper, we give detailed algorithm description as well as data construction that are necessary for learning single agent strategies at first. In following step moreover, we will extend developed methods into multiple robot domains. game. We investigate and contrast two different methods-simple team learning and sub-group loaming and conclude the paper with some experimental results.

• International Journal of Computer Science & Network Security
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• 제22권7호
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• pp.268-282
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• 2022

One of the most important technologies today is augmented reality technology, it allows users to experience the real world using virtual objects that are combined with the real world. This technology is interesting and has become applied in many sectors such as the shopping and medicine, also it has been included in the sector of education. In the field of education, AR technology has become widely used due to its effectiveness. It has many benefits, such as arousing students' interest in learning imaginative concepts that are difficult to understand. On the other hand, studies have proven that collaborative between students increases learning opportunities by exchanging information, and this is known as Collaborative Learning. The use of multimodal creates a distinctive and interesting experience, especially for students, as it increases the interaction of users with the technologies. The research aims at developing collaborative framework for developing achievement of 6th graders through designing a framework that integrated a collaborative framework with a multimodal input "hand-gesture and touch", considering the development of an effective, fun and easy to use framework with a multimodal interaction in AR technology that was applied to reformulate the genetics and traits lesson from the science textbook for the 6th grade, the first semester, the second lesson, in an interactive manner by creating a video based on the science teachers' consultations and a puzzle game in which the game images were inserted. As well, the framework adopted the cooperative between students to solve the questions. The finding showed a significant difference between post-test and pre-test of the experimental group on the mean scores of the science course at the level of remembering, understanding, and applying. Which indicates the success of the framework, in addition to the fact that 43 students preferred to use the framework over traditional education.

• 영재교육연구
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• 제27권1호
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• pp.59-80
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• 2017

본 연구에서는 영재로 선정되어 영재교육을 받은 학생들의 사회성을 이해하기 위해 최후통첩게임 및 유한반복공공재게임을 이용하여 사회적 딜레마 상황에서 이들의 사회적 행동 및 상호작용유형을 분석했다. 이를 위해 서울시내 소재 영재교육원에서 영재교육을 받고 있는 영재집단 132명과 비교를 위해 일반집단 72명을 대상으로 실험을 실시하였다. 최후통첩게임 실험결과 두 집단 모두에서 제안율이 37~38%로 기존의 연구결과와 유사하게 나타났으며 영재집단도 일반적인 정도의 사회적 선호를 지녔다고 해석되었다. 최후통첩게임의 적은 제안에 대한 거부율은 영재집단에서 월등히 높게 나타났는데, 영재집단에서 자신의 비용을 들여서라도 공정하지 못한 상대방을 처벌하고자 하는 부(-)의 상호성이 강한 것으로 해석되었다. 유한반복 공공재게임의 실험결과에서는 기존의 관련 연구와 마찬가지로 두 집단 모두 초반부 기여율이 높다가 후반부로 갈수록 낮아지는 현상이 지속적으로 나타났다. 하지만 두 집단에서 실험집단 내 다른 구성원과의 상호작용 패턴이 다르게 나타났다. 상호작용 패턴을 5가지로 분류해 분석한 결과, 영재집단이 일반집단보다 실험집단 내 개별 구성원들의 공공재에 대한 기여율을 높여 추후에 자신의 기대이익을 높이고자 하는 전략적 협조를 하는 경향이 높은 것으로 나타났다. 영재집단에서 전략적 협조자의 빈도가 높게 나타난 것은 일반집단에 비해 그들이 실험 집단 내 구성원들과의 상호작용으로 자신의 기대 보수를 크게 만드는데 관심을 두기 때문인 것으로 해석된다.

• 한국초등과학교육학회지:초등과학교육
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• 제25권spc5호
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• pp.495-506
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• 2007

This study investigated the differences in learning activity preferences according to different thinking styles between gifted and average students. A cluster analysis procedure was performed to classify students on the basis of thinking styles. Two clusters of different thinking styles were deduced: the gifted group with a high level thinking style (cluster 1), and the average group with a low level thinking style (cluster 2). The gifted group (cluster 1) preferred projects, simulations, discussions and game activities to other types of loaming activities. Gifted students and average students also were clustered into each three unique subgroups with respect to levels and patterns in thinking styles, and these subgroups also showed different learning preferences. The clusters of gifted students included the self-regulated learning type (cluster a), cooperative-learning type (cluster b), and the passive-learning type (cluster c). The clusters of average students included the independent learning type (cluster i), no-preference learning type(cluster ii), and the no-motivation & teacher-directed learning type (cluster iii). Theses clusters indicated significant differences not only in thinking styles but also in terms of preferences regarding learning activities. Theses findings are discussed in terms of their educational implications.

• International Journal of Computer Science & Network Security
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• 제22권9호
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• pp.75-82
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• 2022

Analyzing the psychological and pedagogical literature, we found the researchers' interest in the problem posed. The concept of "culture of professional communication» is considered, which is interpreted as the level of realization of creative abilities, exchange of messages, organization of mutual understanding, mutual knowledge in the process of professionally directed interaction between subjects, in which interpersonal relationships arise, manifest and form. The concept of "professional culture of communication of a teacher" is interpreted. The motives that are socially significant in the professional communication of the teacher are highlighted. The necessity of forming a culture of professional communication among students, in particular by means of information technologies in the present, is clarified. The interactive component of professional communication is considered. The types of interactions between people in everyday life (ritual and entertainment interaction, joint purposeful activity, no interaction, game and interpersonal interaction) are identified. Traditional and specific forms and methods of teaching are written out. All interactive technologies carried out by means of information technologies are conventionally divided into four groups, depending on the form of educational activity appropriate for their use (pair (work of the subject with the teacher or peers one on one by means of Information Technologies); frontal (the teacher simultaneously teaches a group of subjects by means of Information Technologies); group or cooperative (all subjects teach each other by means of Information Technologies); individual (independent work of the subject using Information Technologies)). In the higher education institution, future specialists should learn knowledge, acquire skills on the basic rules of the culture of professional communication and methods of interaction and their effective use, which is possible with the use of Information Technologies. Recommendations for optimal professional communication have been developed that help you express your thoughts easily and beautifully, and conduct a dialogue in a relaxed and harmonious way.

• 환경정책연구
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• 제9권2호
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• pp.3-19
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• 2010

안양천은 서울의 한강에 유입되는 대표적 도시하천이다. 도시화로 인한 안양천 하천수질 악화와 건천화 문제를 개선하기 위해 유역통합관리를 위한 여러 사업이 진행되고 있다. 유역통합관리를 위해서는 관련 지자체들의 공조가 필요하게 되며, 재정분담문제가 필연적으로 발생하게 된다. 본 연구에서는 유역통합관리를 위해 제안된 사업비 261억의 4개 소유역의 비용분담 방안을 Shapley Value를 이용하여 제안하고 이를 다른 2개 분담방안들과 비교하였다. '분담방안 1'은 수질개선시설이 설치되는 유역의 지자체가 비용을 부담하는 방안으로, 소유역 I지역은 0.58%, 소유역 II지역은 29.54%, 소유역 IV지역은 0%, 그리고 소유역 V지역은 69.88%의 비용을 분담하게 된다. '분담방안 2'는 각 소유역의 소하천길이에 따라 비용을 분담하는 것으로, 13개 지자체들의 교섭력이 동일하다는 것을 전제로 하고 있으며, 소유역 I지역은 13.76%, II지역은 7.34%, IV지역은 45.87%, V지역은 33.03%의 분담을 해야 한다. 하지만 하천의 물 흐름은 상중하류의 각 지자체에 서로 다른 교섭력을 부여하므로, 공조적 게임의 해(解)인 shapley Value를 이용하여 교섭력을 고려한 재정분담방안인 '분담방안 3'으로 비용분담체계를 설계하였다. 모든 가능한 공조체제에 있어 각 참여자들의 평균 한계기여도의 합으로 측정되는 Shapley Value에 의한 분담비율은 I지역 0.29%, II지역은 14.77%, IV지역 50.00%, V지역은 34.94%이며, 이를 지자체들이 수용 가능한, '공정한' 재정분담방안으로 제시하였다.