• Cartoon and Animation Studies
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• s.12
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• pp.103-119
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• 2007

This study investigated the comical essence of animations and the comicality found in Korean animations focusing on the comical elements signifying the promotion of laughing and its meaning. In addition, it has been found from this study that the comical essence of animations was the laughing that expanded the recognition and awareness for the entity to be revived, by suggesting the following: 1) the fact that the laughing would be unexpected and it would stimulate the imagination of audience in unprecedented situations in which the method of creation would be unthinkable and thereby the laughing occurred would endow audience with thought, feeling and sense etc. that would not have been perceived so far; and 2) furthermore, the ideal world through grotesque expressions. Meanwhile, unlike the general preconception that animations would be considered one of the popular art forms with strong comical elements, it has been noted that there have been a very few Korean animations with strong comical elements. Besides, it has been confirmed that they have focused not on created and grotesque comicality, but on linguistic comicality based on the forms of characters or their movement itself, or humor and witty remarks.

• Journal of Korea Multimedia Society
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• v.10 no.8
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• pp.981-996
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• 2007

In this paper, we describe a method that can recognize gestures by obtaining motion features information with principal factor analysis from sequential gesture images. In the algorithm, firstly, a two dimensional silhouette region including human gesture is segmented and then geometric features are extracted from it. Here, global features information which is selected as some meaningful key feature effectively expressing gestures with principal factor analysis is used. Obtained motion history information representing time variation of gestures from extracted feature construct one gesture subspace. Finally, projected model feature value into the gesture space is transformed as specific state symbols by grouping algorithm to be use as input symbols of HMM and input gesture is recognized as one of the model gesture with high probability. Proposed method has achieved higher recognition rate than others using only shape information of human body as in an appearance-based method or extracting features intuitively from complicated gestures, because this algorithm constructs gesture models with feature factors that have high contribution rate using principal factor analysis.

• Journal of Korean Library and Information Science Society
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• v.46 no.1
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• pp.321-344
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• 2015

This paper presents a fusion approach to sentiment detection that combines multiple sources of evidence to retrieve blogs that contain opinions on a specific topic. Our approach to finding opinionated blogs on topic consists of first applying traditional information retrieval methods to retrieve blogs on a given topic and then boosting the ranks of opinionated blogs based on the opinion scores computed by multiple sentiment detection methods. Our sentiment detection strategy, whose central idea is to rely on a variety of complementary evidences rather than trying to optimize the utilization of a single source of evidence, includes High Frequency module, which identifies opinions based on the frequency of opinion terms (i.e., terms that occur frequently in opinionated documents), Low Frequency module, which makes use of uncommon/rare terms (e.g., "sooo good") that express strong sentiments, IU Module, which leverages n-grams with IU (I and you) anchor terms (e.g., I believe, You will love), Wilson's lexicon module, which uses a collection-independent opinion lexicon constructed from Wilson's subjectivity terms, and Opinion Acronym module, which utilizes a small set of opinion acronyms (e.g., imho). The results of our study show that combining multiple sources of opinion evidence is an effective method for improving opinion detection performance.

• The KIPS Transactions:PartB
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• v.8B no.5
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• pp.463-468
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• 2001

We propose a new similarity measure based on relative membership function (RMF). In this paper, the RMF is suggested to represent the relativity between fuzzy subsets easily. Since the shape of the RMF is determined according to the values of its parameters, we can easily represent the relativity between fuzzy subsets by adjusting only the values of its parameters. Hence, we can easily reflect the relativity among individuals or cultural differences when we represent the subjectivity by using the fuzzy subsets. In this case, these parameters may be regarded as feature points for determining the structure of fuzzy subset. In the sequel, the degree of similarity between fuzzy subsets can be quickly computed by using the parameters of the RMF. We use Euclidean distance to compute the degree of similarity between fuzzy subsets represented by the RMF. In the meantime, we present a new linguistic approximation method as an application area of the proposed similarity measure and show its numerical example.

• Journal of The Korean Association For Science Education
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• v.25 no.5
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• pp.583-594
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• 2005

This study examined 8th-graders' conceptions of force on a simple pendulum and investigated cognitive conflict and conceptual change through kinesthetic experience in swing. Participants of this study were guided to anticipate the direction of total force acting on a pendulum at three critical positions and observed it through swing experience. Having completed this, students read an article explaining the results they observed. Most of them considered gravity, tension, and motion-force to be the real forces acting on a pendulum in pre-test. Though they were interested in the activity and conceded their expectations to be different from observed results, the degrees of their cognitive conflict were not significantly high. In summation, 'interest' was the highest and 'anxiety' was the lowest. Most of the students memorized the direction of forces on a swing, but few could explain the reason behind the occurrence in an immediate post-test and delayed post-test.

• Journal of the Korean Society of Costume
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• v.38
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• pp.123-142
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• 1998

본 논문에서 패션 디자인(fashion design)을 평가하는데 있어서 새로운 방법론적 접근 방식을 제시해 보려하였다. 즉 패션 디자이너의 디자인에 대한 철학을 이해함으로서 패션에 대한 근복적인 면에 대해 보다 나은 이해를 갖도록 하는 접근 방식을 모색하려는 것이다. 본 논문의 분석대상은 디자이너 루디 건라이(Rudi Gernreich : 1922-1985)와 그의 작품들인데, 그의 작품들에 나타나는 급진적인 성향 뒤에 숨어 있는 그의 디자인 철학을 집중적으로 분석함으로써 작품과 철학의 상관관계를 조명하려는 것이 그 주된 목적이다. 기존의 그에 대한 평가는‘파격적 패션’,‘소설 스테이트먼트(Social Statement)’,또는‘시각적 창출’등의 표현으로 극히 피상적인 것이었다. 반면에 그가 어떠한 경로로 이러한 디자인을 구상하게 되었는지 또는 그가 현대의상에 얼마만큼의 영향을 미쳤는지에 대한 연구는 극히 소수에 불과하였다. 본 논문의 초점은 건라이의 패션 디자인을 그가 중요한 가치로 믿고 있었던‘개인적 자유에 대한 추구’의 반영으로써 재 평가해 보려는 것이다. 이것의 입증을 위해서 그의 디자인들을 역사적, 사회적 그리고 미학적인 관점에서 분석하였다. 먼저 그의 디자인 철학을 도출하기 위해 그의 개인적 배경에 대한 상세한 검토를 하였고, 그의 디자인과 관련된 자료와, 현존하는 작품들과 그에 따른 참고문헌들에 대한 분석 조사 작업을 하였다. 이 작업을 통해 필자는 건라이의 작품들을 세 개의 주된 주제들, 즉,‘부분적 누디즘(Partial Nudism)’,‘유니섹스 모드(Unisexs Mode)’, 그리고‘옵 아트 패션(Op-art Fashion)’으로 구분하였다.‘부분적 누디즘(Partial Nudism)’과‘유니섹스 모드(Unisex Mode)’는 60년대 중반에서 70ssu대 초반에 출현한 유스 컬츄어(Youth Culture)에 부합하는 그이 디자인의 반영으로써 성의 혁명, 여성 인권운동과 동성애자 인권 운동과 같은 사회이슈들과 그의 디자인이 갖는 상관관계를 보여주는 것이다.‘옵-아트 패션(Op-art fashion)’은 건라이 디자인의 미학적 요소에 초점을 맞추고 있다. 그의 작품에 나타나는 인체와 옵-아트 원리의 관계를 조명해 보고, 건라이가 옵-아트와의 연계하에 그의 디자인을 어느만큼 예술적으로 승화시켰는지를 보여주고 있다. 각 주체들은 건라이 작품들의 개별적인 분석을 통해 논하였다. 본 논문은 보다 넓은 관점에서의 건라이의 디자인에 대한 재 평가로 결론을 지었다. 이러한 재평가 작업을 통해 패션 디자인계에 미친 그의 공헌의 역사적 중요성을 강조하고 현대 패션에 그의 영향이 계속 미치고 있는 이유를 설명하려 하였다.

• Journal of the Korean School Mathematics Society
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• v.19 no.1
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• pp.63-82
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• 2016

Mathematical notation is the main means to realize the power of mathematics. Under this perspective, this study analyzed the difficulties of learning an irrational number concept in terms of notation. I tried to find ways to overcome the difficulties arising from the notation. There are two primary ideas in the notation of irrational number using root. The first is that an irrational number should be represented by letter because it can not be expressed by decimal or fraction. The second is that $\sqrt{2}$ is a notation added the number in order to highlight the features that it can be 2 when it is squared. However it is difficult for learner to notice the reasons for using the root because the textbook does not provide the opportunity to discover. Furthermore, the reduction of the transparency for the letter in the development of history is more difficult to access from the conceptual aspects. Thus 'epistemological obstacles resulting from the double context' and 'epistemological obstacles originated by strengthening the transparency of the number' is expected. To overcome such epistemological obstacles, it is necessary to premise 'providing opportunities for development of notation' and 'an experience using the notation enhanced the transparency of the letter that the existing'. Based on these principles, this study proposed a plan consisting of six steps.

• Journal of Educational Research in Mathematics
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• v.19 no.2
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• pp.341-354
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• 2009

The purpose of this study is to show the Fractals activities for mathematically gifted students, and to analyze the constructions on Fractals of the mathematically gifted. The subjects of this study were 5 mathematically gifted students in the Gifted Education Institut and also 6th graders at elementary schools. These activities on Fractals focused on constructing Fractals with the students' rules and were performed three ways; Fractal cards, colouring rules, Fractal curves. Analysis of collected data revealed in as follows: First, the constructions on Fractals transformed the ratios of lines and were changed using oblique lines or curves. Second, to make colouring rules on Fractals, students presented the sensitivities of initial and fractal dimensions on Fractals. In conclusion, this study suggested the importance of communication and mathematical approaches in the mathematics classrooms for the mathematically gifted.

• Journal of IKEEE
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• v.18 no.4
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• pp.572-580
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• 2014

This study deals with reconfigurable modular robot with respect to the compact and capability of representing the various actions for promoting creativity through education and play. Generally modular robot can be designed as a suitable robot that is transformed to various structure by reconstructing each cells, However, there are only few research on the education and play using those robots in the world and still nothing domestically. Unlike the existing modular robots only having a repeating motion, the proposed modular works by individual module such as sound is produced by sound module, wheel is driven by wheel module, LED module controls the visual expression, power is supplied by battery module, bluetooth module for communication, and dynamic motion realization is possible by using joint module. By manipulating the abilities endowed by individual modules, diversity of creative activities is possible and thus made an easy access for children. This study deals with the design of modular robotic by using the variety of different modules to endowed the learning and playing ability. And the study showed the utility of the operating behavior over the actual production and testing.

• Journal of Broadcast Engineering
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• v.25 no.4
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• pp.587-597
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• 2020

In this paper, we analyze the normalization that occurs when processing digital hologram and propose an optimized quantization method. In JPEG Pleno, which standardizes the compression of holograms, full complex holograms are defined as complex numbers with 32-bit or 64-bit precision, and the range of values varies greatly depending on the method of hologram generation and object type. Such data with high precision and wide dynamic range are converted to fixed-point or integer numbers with lower precision for signal processing and compression. In addition, in order to reconstruct the hologram to the SLM (spatial light modulator), it is approximated with a precision of a value that can be expressed by the pixels of the SLM. This process can be refereed as a normalization process using quantization. In this paper, we introduce a method for normalizing high precision and wide range hologram using quantization technique and propose an optimized method.