• 컴퓨터교육학회논문지
• /
• 제15권2호
• /
• pp.19-28
• /
• 2012

최근 소셜미디어의 대중화와 함께 소셜러닝에 대한 관심이 높아지고 있다. 소셜러닝의 긍정적 학습효과에 대한 기대에도 불구하고 교실수업 환경에서 소셜러닝의 구체적인 적용 방법과 그에 따른 학습 향상의 명시적 효과에 대하여서는 아직도 알려진 사례가 많지 않은 실정이다. 본 연구에서는 교실수업 환경에서 웹 기반의 과제 상호 평가를 통하여 개별 학습자들 간의 특정 주제에 대한 생각 공유가 발생하도록 하고, 그러한 상호 생각 공유가 개별 학생의 지식 구성에 어떤 영향을 주었는지를 살펴보았다. 수행된 실험결과에 따르면 학습자들은 다른 학습자들과의 생각의 공유를 통하여 지식이 결합 혹은 재조합되어 자신의 지식 구성에 영향을 주고 있음을 알 수 있었다. 이 실험 결과는 소셜러닝의 효과성에 대한 중요한 시사점을 줄 수 있을 것이다.

• 대한전자공학회:학술대회논문집
• /
• 대한전자공학회 2002년도 ITC-CSCC -3
• /
• pp.1897-1900
• /
• 2002

This paper proposes a novel computer-human interface, named invisible Messenger. It integrates face detection and tracking, and speaker array signal processing. By speaker array it is possible to form acoustic focus at the arbitrary location that is measured by the face tracking. Thus the proposed system can whisper in a person's ear as if an invisible virtual messenger were standing by the person. Not only speculative discussion, the authors have implemented a working prototype system based upon the proposed idea. This paper also describes about this prototype. In order to confirm effectiveness of the proposed idea, the authors conduct experiments using the implemented system. Experimental results demonstrate the effectivenss of the proposed idea.

• Acta Via Serica
• /
• 제3권1호
• /
• pp.57-83
• /
• 2018

Historians describe the early years of the 20th century as a period of "nationalism." During this period, Turkish nationalism transformed into a thought movement which emerged to defend Turkish national sovereignty during the collapse of the Ottoman Empire. Approaches towards nationalism in Turkey are based on the idea of national sovereignty and the ideas of national independence that developed subsequently. Nationalism in Turkey first transformed from Pan-Islamism into multinational Ottomanism, and finally developed into Turkish nationalism and patriotism. This process emerged as a movement of self-discovery in the multicultural structure of the Ottoman Empire and transformed into Turkism. The Balkan Wars (1912-1913) destroyed the foundation upon which Ottomanism was based, and led to the rise of Turkish nationalism, in other words, Turkism. The idea of nation in modern terms in the recent history of thought and nationalism subsequently developed based on this idea and emerged with the Turkism movement. Thus, Turkism became the movement of Turks in the empire, combined with political Turkism which was supported by the intellectuals who came to the Ottoman Empire from Russia. In this article, the formation of Turkist movements and the leading intellectuals of Turkish nationalism, who emerged at the end of the 19th century and at the beginning of 20th century in the Ottoman Empire, are investigated in order to examine the historical progress of nationalist approaches in a period in which a new national state was established and improved.

• 한국컴퓨터정보학회논문지
• /
• 제21권6호
• /
• pp.21-28
• /
• 2016

Circle detection has long been studied as one of fundamental image processing applications. It is used in divers areas including industrial inspection, medial image analysis, radio astronomy data analysis, and other object recognition applications. The most widely used class of circle detection techniques is the circle Hough transform and its variants. Management of 3 dimensional parameter histogram used in these methods brings about spatial and temporal overheads, and a lot of studies have dealt the problem. This paper proposes a robust circle detection method using maximal symmetry property of circle. The basic idea is that if perpendicular bisectors of pairs of edges are accumulated in image space, center of circle is determined to be the location of highest accumulation. However, directly implementing the idea in image space requires a lot of calculations. The method of this paper reduces the number of calculations by mapping the perpendicular bisectors into parameter space, selecting small number of parameters, and mapping them inversely into image space. Test on 22 images shows the calculations of the proposed method is 0.056% calculations of the basic idea. The test images include simple circles, multiple circles with various sizes, concentric circles, and partially occluded circles. The proposed method detected circles in various situations successfully.

• 한국정보처리학회:학술대회논문집
• /
• 한국정보처리학회 2014년도 춘계학술발표대회
• /
• pp.206-209
• /
• 2014

Control message exchange is major job for cognitive radio to exist and use spectrum opportunistically. For this control message exchange they need a common control channel (CCC). Once this channel is affected by a primary user, communication stops until new CCC is setup. This takes substantial time and if they could not get free channel, this halt continues for long time. To prevent such cease of communication, we propose a combination of two networks, namely WLAN and UWB, to let the communication continue. In our proposed idea if the CCC of a certain CR in WLAN is affected, the CR changes its network from WLAN to UWB and keeps the communication because UWB cannot be affected by PU. In the proposed idea every cognitive radio has two transceivers; one for the overlay network (WLAN) and another UWB network. If a primary user is detected in the spectrum of a cognitive radio, it continues exchanging control messages under the UWB network and in parallel negotiates for a new CCC using the WLAN network. This idea solves the communication interruption until new CCC is setup.

• 한국의류학회지
• /
• 제45권4호
• /
• pp.727-739
• /
• 2021

The purpose of this study is to present the objective evaluation semantic scale of avant-garde design. Apparel majors were asked to express associative vocabulary, design development, and final design intentions for the avant-garde, and the final 70 copies were used for analysis. The results found the item style was shown often in the order of dress, coat, and combination of shirt and pants. In order, the silhouettes appeared as atypical, complex, square, and triangular; the decorations appeared as feathers, frills, and round sculptures; and the idea method appeared as extreme, association, and removal method. In examining the relations of associative words and idea designs, the dress had relations with associative words such as 'peculiar,' 'futuristic,' 'fancy,' 'Comme des Garcons,' and 'deconstruction.' As for the relationship between the idea design and the expression image vocabulary, it was found that 'one piece' recalled 'huge,' 'volume,' 'abundant,' 'peculiar,' and 'unknown,' while 'coat' recalled 'huge,' 'big silhouette,' and 'padding.' In conducting the word cloud technique, the overall design showed the central keywords were 'huge,' 'big silhouette,' 'unbalance,' 'feather,' 'structural,' 'unknown,' and 'frill,' in order.

• 지식경영연구
• /
• 제20권2호
• /
• pp.105-135
• /
• 2019

This study investigates cognitive and emotional changes in individuals to clarify the principle between artistic stimulation and business innovation idea generation based on phenomenological research methodology. We conducted in-depth interviews with six participants who participated in the artistic creation program of business art, and derived meanings from their experience. As a result, we presented 4 essential categories, 8 main subjects, and 20 sub-subjects; 1) Optimizing rational and creative thinking, 2) Projecting oneself to the artist, finding balance, 3) Having room in mind to view the surroundings, finding insight into the world, 4) Eureka moment, crossing the boundary between business and art. We also found out participants of the program 1) Gradually expanded the criteria, 2) In chaotic directions, and 3) Leaded business creativity through from a non-form to reality throughout the project experience, The attempt to identify business phenomena by using phenomenological qualitative research methods had an academic significance regarding the unfamiliarity of the method in the business administration area. Moreover, this study broadened the possibility of promoting creativity by art in business areas. The study verified the categories and subjects of the business art, paving the way towards application in the real business situation.

• 한국인터넷방송통신학회논문지
• /
• 제21권3호
• /
• pp.193-200
• /
• 2021

본 연구는 창의적 문제해결력 평가를 위한 요인을 탐색하고 측정 항목을 규명하기 위해 진행하였다. 선행 연구와 설문을 통해 7개의 요인과 26개의 예비 문항을 얻을 수 있었다. 창의적 문제해결 역량과 관련하여 문제해결 절차 면에서 문제 발견 능력, 아이디어 생성 능력, 아이디어 평가 능력, 아이디어 실행 능력을 확인하였다. 또한, 문제해결 수행자간의 상호작용 능력과 문제 해결 수행자의 창의적 효능감 요인이 탐색 되었다. 마지막으로 HTE 창의교육 모델의 창의적 문제해결력 요인으로 은유와 비유적 인지 사고 능력과 그에 대한 평가 항목을 제시하였다. 후속 연구를 통해 HTE 창의 교육 평가 모델의 초석이 되기를 기대한다.

• 한국정보시스템학회지:정보시스템연구
• /
• 제27권1호
• /
• pp.153-169
• /
• 2018

Purpose Since human brains catch images faster than texts or numbers, infographics has been widely used in business in the form of "information dashboard" to enhance the efficiency of decision-making. Groupware, however, has neglected the adoption and use of infographics, in particular, in the idea generation process. Given that an overall performance of groupware-based idea generation is no better than that of the (paper-and-pencil-based) Nominal Group Technique, Jung et al. (2010) adopted the notion of infographics in the form of performance feedback to solve the productivity paradox. With the consistent results, which demonstrate beneficial effects of infographics on performance enhancement, an interesting observation that groups with the bar chart treatment performed better than groups with the dot chart treatment was made. The main purpose of this study was to find if there were a performance consistency between the outcomes from the previous study and the outcomes from the current study. Design/methodology/approach In experiment 1, we employed the same system used in the previous study (i.e., Jung et al., 2010). As individuals' contributions accumulated, the mechanism visually displayed individuals' performances two-dimensionally in the form of a bar chart or a dot chart. Then, we compared the performance outcomes from this study to the outcomes from previous study (i.e., Jung et al., 2010). In experiment 2, we modified the performance graph to test the effect of "playfulness" on performance by converting dots to car images. Then, we compared the performance outcome from experiment 2 to the outcomes from experiment 1. Findings Just like our interesting (and unexpected) finding in Jung et al.'s study (2010), the outcome confirmed a consistent superior performance of a bar chart. This implies that a bar chart is a better choice when stimulating performance with a visual aid in the context of groupware-based idea generation. Although a bar chart was criticized in a way that errors of length-area judgments are 40 ~ 250% greater than those of positional judgments along a common scale, such illusion turned out to be facilitating upward performance comparison better. Regarding Experiment 2, the outcome showed that the revised-dot graph is as good as the bar graph in terms of quantity and quality score of ideas. We attribute the performance enhancement of the resized-dot to the interaction between the motivational characteristic and the situational characteristic of playfulness because individuals in the revised-dot graph treatment performed better than individuals in the dot graph treatment. Given the order of performance (Bar >= Revised Dot > Dot) that the revised-dot treatment performed the same as (or lower than) the bar treatment, an additional research is warranted to reach to a consistent outcome.

• 대한화학회지
• /
• 제58권1호
• /
• pp.118-125
• /
• 2014

이 연구의 목적은 Nature-Study의 형성 과정을 역사적으로 고찰함으로써 오늘날 이루어지고 있는 과학교육의 방향과 의미를 재고하여 시사점을 찾는 것이다. Nature-Study의 사상은 실물 교육을 강조한 캄파넬라, 라트케, 코메니우스, 페스탈로치 등의 사상에 기초하고 쉘던의 사물학습, 아가시의 자연사, 파커의 진보주의에 의해 형성되었다. Nature-Study는 방법적 측면에서는 사물학습의 '실물 주제 중심의 학습', 내용적 측면에서는 자연사의 '자연에 대한 학습', 철학적 측면에서는 진보주의의 '학습자 중심의 학습'에 영향을 받아 발전해 나갔다. 아가시의 제자로 쉘던의 오스위고 사범학교와 파커의 쿡 카운티 사범학교에서 근무한 스트레이트는 이 세 영역을 종합화하여 Nature-Study 형성의 기틀을 마련하였다. 이어 쿡 카운티 사범학교의 잭만은 Nature-Study를 교과로서 확립시켰으며 코넬 대학의 베일리와 콤스톡은 미국 Nature-Study 협회를 구성하여 대중화에 공헌하였다. 그러나 교육자들이 점차 통합적인 Nature-Study를 거부하고 직접 경험보다 교과서를 중요하게 여기면서 1920년대 이후 Nature-Study가 쇠퇴하게 되었다. 과학교육에서 Nature-Study 정신은 통합과 실제적 학습을 강조하는 오늘날 과학교육에 있어 자연을 주제로 한 통합교육, 자기주도적 학습, 자연과의 교감, 학습자의 인격 형성에 큰 역할을 할 것으로 판단된다.