• The Journal of Society for e-Business Studies
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• v.12 no.4
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• pp.1-15
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• 2007

Traceability links are logical links between individual requirements and other system elements such as architecture descriptions, source code, and test cases. These are useful for requirements change impact analysis, requirements conflict analysis, and requirements consistency checking. However, establishing and maintaining traceability links places a big burden since complex systems have especially yield an enormous number of various artifacts. We propose a feature-oriented requirements tracing method to manage requirements with cost benefit analysis, including value consideration and intermediate catalysis using features. Our approach offers two contributions to the study of requirements tracing: (1)We introduce feature modeling as intermediate catalysis to generate traceability links between user requirements and implementation artifacts. (2)We provide value consideration with cost and efforts to identify traceability links based on prioritized requirements, thus assigning a granularity level to each feature. In this paper, we especially present the results of a case study which is carried out in Apartment Ubiquitous Platform to integrate and connect home services in an apartment complex in details.

• Journal of the Korean Society of Clothing and Textiles
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• v.39 no.2
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• pp.233-246
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• 2015

Focus on Digital Fashion Image, the conceptual framework for the thesis is established from Virtuality in Digital Art. Formative characteristics and aesthetic characteristics were studied by classifying the Digital Fashion Image applied and expressed by digital media and technology. A detective research method was used for a case study. A literature study for case-by-case data was analyzed with focus on the works expressing fashion that utilized digital media and technology since the 2000s. Through this study, the Digital revolution has created the socio-cultural impact of a Virtual representation to implement technology and fashion culture that finds ways to take advantage of the image shown in a Digital Fashion Media by understanding Virtuality. The results are as follows. First, it was a re-formation of the fashion culture through the experience of virtuality with mental zone parameters between the media 'Mediation Code'. Reflect the reality of the virtual environment as represented by a cultural image of fashion brands and fashion that reset the team relationship and formed a Homo Ludens cultural code. Second, 'Interactive Exchange' acts on the exchange interaction between the method of digital technology, the human and the machine as well as the technical interoperability of network elements and techniques. This exchange is applied to fashion images that express emotion. Forming personalized fashion items and the user interactively storage that expresses the interactive exchange to forward the identity of the emotional fashion by a change in the message delivery system fashion. Third, the emphasis on intuitive artistic expression 'Synesthesia Immersion' induces a sense of immersion and excitement through the fusion of the interconnected. Enhance a visual image in fashion sensory representation and maximize a tactile and visual virtual reality involvement.

• Cross-Cultural Studies
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• v.45
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• pp.433-478
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• 2016

This article investigates the role of Japan in Korean consumption of Nordic design. In spite of the development of greater access to wide information and global markets, the popular trends in Korea have been mediated by Japan. The cultural power of Japan comes from otaku subculture. Japanese influence can be discussed by two sides. One is the images or symbols composing the Nordic style in Korea. The other is the way how to consume the Nordic design. Japanese neopop images combined with the Nordic design. Japanese 'slow movie' has combined American Kinfolk style with Nordic style. 'Database consumption' from otaku subcultre conceptualized by Azma Hiroki can be applied to Korean consumption of Nordic design.

• Journal of Korea Society of Digital Industry and Information Management
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• v.11 no.2
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• pp.1-10
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• 2015

As programs get more complicated and they are developed by various hands, the possibility that there are program bugs in the code has been increasing. And developers usually run unit tests to find these problems in the code. Besides, the developers are at the pain of getting stability of the code when they have to modify a code very often for clients requirements. In the methodlogy of TDD(Test Driven Development), developers write a unit test code first, and then write a program code for passing the unit test. The unit test must include the boundary condition test the reason why the possibility of occurring the bugs is very high. When failed to pass the test because of the value of a function is incorrect, not existed, out of the range or not matched etc, the program code will return the error code or occur the exception. In the document, the system is designed and implemented in order to insert the generated code automatically or suggest it to the developer, when the boundary condition test is failed. In conclusion, it is possible that the developer will get the code stability by searching the code and checking the code to be omitted automatically through this system.

• Communications of Mathematical Education
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• v.30 no.2
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• pp.179-198
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• 2016

Mathematics(group theory, in particular) makes it partially possible to present and create music and patterns. This means that patterns can be presented by music through mathematics. In this work, we first produce musical piece for each type of frieze patterns. Based on the musical pieces, we compose a music presenting the combined pattern of all frieze types. We finally produce a video for hearing design through music. Through a QR-code, anyone can access the product of this work. The results of this research might be examples for integration of mathematics and arts and for utilizing smart circumstances.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.31 no.9C
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• pp.853-858
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• 2006

TMHMM(Tied Mixture Hidden Markov Model) is an important approach to reduce the number of free parameters in speech recognition. However, this model suffers from a degradation in recognition accuracy due to its GPDF (Gaussian Probability Density Function) clustering error. This paper proposes a clustering algorithm, called HCNN(Homogeneous Centroid Neural network), to cluster acoustic feature vectors in TMHMM. Moreover, the HCNN uses the heterogeneous distance measure to allocate more code vectors in the heterogeneous areas where probability densities of different states overlap each other. When applied to Korean digit isolated word recognition, the HCNN reduces the error rate by 9.39% over CNN clustering, and 14.63% over the traditional K-means clustering.

• Archives of design research
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• v.17 no.4
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• pp.327-336
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• 2004

The cultural production of meanings is becoming more and laden with the intricacies of signs and symbols in our times. The idea of 'character' is important as an intermediation for information and an essential characteristic of "the object" experienced through the sence of sight. Character is symbolicin its form but also in its iconic markings. Motion Picture Animation makes Character not just an expression of an image but visual communication that expands the action of meaning piled up, sign upon sign. The analysis of 'character' suggests that motion picture animated characters could play an important role as a cultural mode leading to new styles not merely as an aesthetic mechanism. The study there with analyzed animated character systematically to discem where the sign phenomena shows up in social conventions under the semiotic rigor of Peirce's concepts of icon, index, and symbol.

• Journal of Information Management
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• v.29 no.3
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• pp.1-26
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• 1998

The loop is a fundamental for the parallelism exploiting as it has a large portion of execution time for sequential Java program on the parallel machine. This paper proposes the method of exploiting the implicit parallelism through the analysis of data dependence in the existing Java programming language having a single loop structure. The parallel code generation method through the restructuring compiler and the translation method of Java source program into multithread statement, which is supported in the level of the Java programming language, are also proposed here. The performance test of the program translated into the thread statement is conducted using the trip count of loop and the thread count as parameters. The restructuring compiler makes it possible for users to reduce overhead and exploit parallelism efficiently in the Java programming.

• Journal of KIISE:Computing Practices and Letters
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• v.5 no.3
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• pp.313-325
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• 1999

분산 프로그램의 디버깅이 순차 프로그램의 디버깅보다 어려운 이유중의 하나는 수행중인 프로세스들 간의 통신 때문이다. 비록 분산 시스템을 위해 구축된 디버거들이 많이 있음에도 불구하고 , 프로세스들간의 통신 이벤트를 효과적으로 디버깅할수 있는 실용적인 수준의 디버거는 없는 실정이다. 본 논문에서는 분산 시스템의 개발에 널리 사용되고있는 RPC 매커니즘을 이용한 프로그램간의 통신을 효과적으로 디버깅하는 방법을 제시한다. 이를 위하여 RPC 통신 이벤트를 디버깅 객체로 정의한 RPC 이벤트 모델을 제안하고 이에 기초하여 RPC 이벤트 추적 기능을 설계 및 구현하였다. RPC 프로토콜을 분석한 결과를 이용하여 메시지의 송.수신 이벤트를 추적 기능을 설계 구현하였다. RPC 프로토콜을 분석한 결과를 이용하여 메시지의 송.수신 이벤트를 라이브러리 함수의 호출과 자료의 값으로 기술하고 해당라이브러리 함수의 호출이 발생한 위치를 인지함으로써 모든 통신 이벤트의 발생을 탐지할수 있었다. 제안된 RPC 이벤트 추적기능은 현재 분산 디버거인 유니뷰 시스템에 구현되었다. 이벤트 추적 기능의 추가적 구현으로 인하여 유니뷰 시스템은 추적된 통신의 내용을 보면서 관련된 소스 코드를 보거나 프로그램을 제어하고 원격 함수 호출에 사용된 매개변수의 값을 보는 등의 행위가 가능하다. 또한 이러한 이벤트 추적기능을 수행하기 위하여 별도의 라이브러리나 수행환경이 요구되지 않으므로 실제분산시스템의 개발 환경에 적응하기가 용이한 장점을 가진다.

• Journal of the Korea institute for structural maintenance and inspection
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• v.21 no.6
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• pp.113-125
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• 2017

In spite of bulk literature about the tuning of TMD, the effectiveness of TMD in reducing the seismic response of engineering structures is still in a row. This paper deals with the optimum tuning parameters of a passive TMD and simulated on MATLAB with a ten-story numerical shear building. A weighted multi-objective optimization method based on computer experiment consisting of coupled with central composite design(CCD) central composite design and response surface methodology(RSM) was applied to find out the optimum tuning parameters of TMD. After the optimization, the so-conceived TMD turns out to be optimal with respect to the specific seismic event, hence allowing for an optimum reduction in seismic response. The method was employed on above structure by assuming first the El Centro seismic input as a sort of benchmark excitation, and then additional recent strong-motion earthquakes. It is found that the RSM based weighted multi-objective optimized damper improves frequency responses and root mean square displacements of the structure without TMD by 31.6% and 82.3% under El Centro earthquake, respectively, and has an equal or higher performance than the conventionally designed dampers with respect to frequency responses and root mean square displacements and when applied to earthquakes.