• International Journal of Control, Automation, and Systems
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• 제2권2호
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• pp.182-188
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• 2004

This paper presents a design method of delay-dependent control for T-S fuzzy systems with time delays. Based on parallel distributed compensation (PDC) and a descriptor model transformation of the system, a delay-dependent control is utilized. An appropriate Lyapunov-Krasovskii functional is chosen for delay-dependent stability analysis. A sufficient condition for delay-dependent control is represented in terms of linear matrix inequalities (LMIs).

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2006년도 하계종합학술대회
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• pp.1031-1032
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• 2006

A 3D model based face recognition system is generally inefficient in computation time because 3D face model consists of a large number of vertices. In this paper, we propose a novel 3D face representation algorithm to reduce the number of vertices and optimize its computation time.

• 대한전자공학회논문지TC
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• 제43권7호
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• pp.115-121
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• 2006

곱셈기의 효율성은 정규 기저(normal basis), 다항식 기저(polynomial basis), 쌍대 기저(dual basis), 여분 표현(redundant representation) 등과 같은 유한체 원소의 표현 방법에 주로 의존한다. 특히 여분 표현에서의 제곱 및 모듈로 감산(modular reduction)은 단순한 방법에 의해 효율적으로 수행될 수 있기 때문에, 여분 표현은 흥미로운 유한체 표현 방법이다. 본 논문은 여분 표현을 사용한 기약인 all-one 다항식에 의해 정의된 GF(Zm)에서의 효율적인 비트-병렬 곱셈기를 제안한다. 또한 제안된 비트-병렬 곱셈기의 효율성을 향상시키기 위해, Karatsuba에 의해 제안된 잘 알려진 곱셈 방법을 변형한다. 결과로써, 제안된 곱셈기는 all-one 다항식을 사용한 기존의 알려진 곱셈기들과 비교해 적은 공간 복잡도(space complexity)를 가지는 반면에, 제안된 곱셈기의 시간 복잡도(time complexity)는 기존의 곱셈기와 유사하다.

• International Journal of Contents
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• 제11권1호
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• pp.21-30
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• 2015

A simulated realistic virtual environment is inhabited by autonomous cyber-humans who play the roles of agents in events. A key element, which enables this realism, is the historical context formed by time and space. A knowledge-representation scheme, composed of both spatial and temporal aspects needed by the agent to respond to dynamically changing situations, is essential for the design of a realistic virtual agent. In this work, spatial and temporal aspects of dynamic situations in the virtual environment have been formalized as a key component of our knowledge-representation scheme. This scheme provides a mathematical framework to construct realistic virtual situations that change with time, and background knowledge for agents in the simulated environment to deduce new pieces of information and plan against changing situations.

• 정보처리학회논문지A
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• 제13A권3호
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• pp.261-266
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• 2006

스케줄링, 정렬, 및 최단 거리 계산 네트워크 문제 등과 같은 응용에 이용될 수 있는 우선 순위 큐 중, 피보나치 힙, 페어링 힙, 및 M-힙은 포인터를 이용하는 자료 구조이다. 본 논문에서는 [1]에서 문제점으로 남겨두었던 M-힙을 배열을 이용하여 표현한 MA-힙(M-heap with an array representation)를 제안한다. MA-힙은 M-힙과 동일한 시간 복잡도인 O(1) 삽입 전이 시간과 O(logn) 삭제 시간 복잡도를 가지며, 단순한 전통적인 힙에 근거하고 있기 때문에 [5]에서 제안된 힙보다 구현이 매우 용이하다.

• 한국의류산업학회지
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• 제16권5호
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• pp.689-697
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• 2014

This study aims to analyze the representation forms of bloggers' personal style on the fashion blogs and enlighten their values which can be actively applied to design and marketing in fashion industry. Image representation of fashion bloggers is reflected by the characteristics in the digital environment, which are the creative manipulation of expression and the production of virtual and fantastic images by taking advantage of the composite medium such as images, music, videos, articles, etc. Also real time updates in blog indicate the latest trends in terms of the representation of image as the actual currency. The study conducted case studies of 5 women's personal fashion blogs through the verification of a variety of global fashion media and blog ranking sites: Style Bubble, Style Rookie, The Cherry Blossom Girl, The Blond Salad, and Fashion Toast. Research findings are as follows. First, the application of creative design elements is indicated as symbolic items, self-made designs, DIY, and various mix and match emphasizing design elements such as color, patterns, proportion, etc. Second, the virtual representation is very highlighted on the story telling applied by film like production or digital effect. Third, the commercial application with mainly sponsored wardrobe and designer collaboration indicates promoting a updated trend as well as a specific brand or designer to make their business profits.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권3호
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• pp.813-829
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• 2022

In multi-view subspace clustering, how to integrate the complementary information between perspectives to construct a unified representation is a critical problem. In the existing works, the unified representation is usually constructed in the original data space. However, when the data representation in each view is very diverse, the unified representation derived directly in the original data domain may lead to a huge information loss. To address this issue, different to the existing works, inspired by the latest revelation that the data across all perspectives have a very similar or close spectral block structure, we try to construct the unified representation in the spectral embedding domain. In this way, the complementary information across all perspectives can be fused into a unified representation with little information loss, since the spectral block structure from all views shares high consistency. In addition, to capture the global structure of data on each view with high accuracy and robustness both, we propose a novel low-rank approximation via the tight lower bound on the rank function. Finally, experimental results prove that, the proposed method has the effectiveness and robustness at the same time, compared with the state-of-art approaches.

• ETRI Journal
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• 제11권1호
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• pp.109-122
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• 1989

We developed new quadtree and octree representation schemes which reduce the storage requirements from exponential to polynomial. The new schemes not only lessen the large storage requirements of the existing quadtree and octree representation schemes but guarantee an exact representation of the original object. These are made possible by adopting a new set of termination conditions that ensure finiteness of the quadtree and octree during the decomposition. These new data structures are analyzed theoretically and tested empirically. For space complexity, we analyzed its best case, worst case, and average case. Given an $n_e$-gon, we show that the expected number of nodes in our quadtree isO($$$n_e^1.292$) For a polyhedron with $n_f$ faces, the expected number of nodes in the new octree is O($$$n_f^1.667$). For time complexity, we again analyzed the best, worst, and average cases for constructing such quadtree and octree and find the average to be the same as those of the space complexity. Finally, random $n_e$- gons are generated as test data. Regression equations are fitted and are shown to support the claims on the average case performance.

• 한국정보처리학회논문지
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• 제2권5호
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• pp.787-796
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• 1995

본 논문에서는 광디스크, 디지탈 테이프 등과 같은 제3의 저장 장치의 활용을 높 이기 위하여 다중의 디스크와 CD-ROM으로 구성된 저장구조를 제안하고, 이 구조에서 CD-ROM에 저장된 연속미디어 객체들을 효율적으로 표현하는 메카니즘을 설계한다. 본 논문에서는 제안한 연속미디어 저장 구조는 대역폭이 높은 SCSI 버스를 다중의 디스크 가 공유하여 데이타를 전송함으로써 정보의 검색 능력을 향상시킨다. 그리고 연속미디 어 표현 메카니즘은 CD-ROM의 연속미디어 객체의 인출과 표현을 병렬로 수행시켜 연속 미디어 표현의 불연속을 감소시킬 뿐만 아니라 자주 참조되는 객체를 디스크에 존재케 함으로써 재참조 요청에 대한 실기율과 서비스 시간의 변화를 최소화한다.

• 복식
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• 제56권7호
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• pp.126-141
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• 2006

Clothes and human body are inseparably related. Aesthetic consciousness of the body determines the form of clothing, reflecting the time and culture as well as the individual and society. Clothes can even reorganize the meaning of the body, while transcending their instrumental functions of protecting, expanding and deforming the body. Using 'body' to analyze the clothing farm, my study develops a framework by which to classify the representation of the body in fashion focusing on the representation of physicality. In order to inquire the formative style and aesthetic values expressed in representing body in fashion, my study examines subjects from the 14th century European costumes to fashion collections of the 20th century. In fashion, representation of the body is visually analogous to the ideal body shape and structure, including a realistic presentation of the body as well as reflection of aesthetic ideals. Representation of physicality refers to structural designs and elastic fabrication. Structural designs appeared in tailoring and bias-cut draping, as well as in stretchy clothes such as Lycra body suit and knit garments that highlights the body structure and movements of the body joints. In representing physicality in fashion, clothing forms reflect body silhouette and each body parts. Therefore, the shape of clothes (signifiant) corresponds to the anatomy and movement of the body ($signifi\'{e}$) in pursuit of aptness. Aesthetic ideal of the body is visualized in the form of a dress. Some clothes prioritize the body, particularly the feminine bodily curves, while others focus on the clothing itself as abstract and sculptural forms. Fashion continues to explore forms and images that transcend the traditional representations of the clothed body. As a type of intimate architecture, fashion always mediates the dialogue between clothes and body, or fashion and figure. My study suggests a framework to analyze bodily representation in fashion, focusing on the relationship between the clothes and body.