• 한국컴퓨터정보학회논문지
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• 제14권3호
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• pp.149-159
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• 2009

현재 서비스지향 아키텍처 소프트웨어의 중요성이 인식되면서 국내외 서비스지향 아키텍처 소프트웨어 시장이 급격히 증가하고 있는 추세이다. 이에 따라 서비스지향 아키텍처 소프트웨어에 대한 고신뢰성과 고품질 소프트웨어의 요구가 증대되고 있다. 본 연구에서는 서비스지향 아키텍처 소프트웨어의 신뢰성 품질을 평가하기 위해 품질을 시험하여 측정하고 그 결과를 적절한 기준에 따라 판정하는 방법에 대해 연구를 수행하고 평가사례를 제시하여 평가 방법을 명확히 제시하였다. 본 연구를 통해 서비스지향 아키텍처 소프트웨어의 신뢰성 품질 향상을 유도하고 국제 표준을 수용하는 전략기술 개발을 통해 객관성과 활용도를 높일 수 있을 것으로 기대한다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2000년도 하계종합학술대회 논문집(3)
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• pp.125-128
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• 2000

In this paper, we proposed the high quality digital audio watermarking algorithm in the frequency domain. The spread spectrum technique is used to encrypted a stream of information by spreading the data as much of the frequency spectrum as possible. It's technique adapt well to data hiding in audio signal. We have used the perceptual model and MDCT/IMDCT for the high qualify digital audio watermarking. The proposed watermark algorithm preserved high quality audio data from watermark signal.

• 한국실내디자인학회논문집
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• 제33호
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• pp.27-35
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• 2002

The qualify of preschool education is related to the qualify of the physical environment, This research is aiming to develop and validate the set of scales for the measurement of physical quality of the interior spaces in child care facilities. The research has been in three major phases: (1)the development of indicative sub-scales for the description, measurement and evaluation of the physical designed quality of early childhood environments (2)two rounds of iterative phases of reliability and validity testing of the scales through expert panels and observational field-testing and (3)implications for future research to be done. 13 sub-scales were developed, which are based on Moore's 15 design principal for child care environments. And each sub-scale includes several evaluation items based upon developmental theory, existing empirical literature, and Korean, Australian and American child care standards. This set of scales will (1)aid research on the effects of environmental variables on quality of child care facilities for infants, toddlers, and preschoolers; (2)permit evaluation of such environments to identify areas of needed improvement; and (3)provide information for policy makers, parents, administrators, and designers/architects.

• 정보처리학회논문지D
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• 제12D권1호
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• pp.159-164
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• 2005

본 논문에서는 전자펜과 그 인터페이스를 장착한 정보통신장치와 서버가 인터넷으로 연결된 환경에서 패턴인식 기술을 사용하여 글씨의 품질을 향상시키는 훈련을 수행한 수 있는 언어학습시스템을 제안한다. 본 논문에서는 참조자료를 획득하는 방법 및 전역특징과 지역특징을 통한 글씨품질을 평가하는 방법에 관하여 기술한다. 제안하는 시스템은 문자 뿐 아니라 문자열에 대해서도 글씨품질을 평가할 수 있으며, 제시어와 입력어가 같은 경우 뿐 아니라 다른 경우에도 글씨품질을 평가한 수 있는 특징을 가진다. 따라서 제안하는 시스템은 글씨연습 뿐 아니라 언어 훈련에 매우 유용한 것으로 기대된다.

• 한국정보통신학회논문지
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• 제13권2호
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• pp.413-418
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• 2009

유 무성음의 음원을 이용한 음성부호화 시스템에서는 프레임 내에 유성자음과 무성자음이 공존하는 경우에 음질왜곡을 일으킬 수 있다. 따라서 프레임 내에 유성자음과 무성자음이 공존하지 않도록 하기 방법으로써 무성자음을 탐색하고 검출을 포함하는 천이 구간을 제안하였다. 본 연구는 최소 자승법과 주파수 대 역 분할법을 사용함으로써 TS 근사합성의 새로운 방식을 제시하였으며 결과적으로 이는 0.547KHz이하와 2.813kHz 이상에서의 주파수 정보를 이용함으로써 TS내에서 고품질의 근사합성 파형을 얻을 수 있었다. 보다 중요한 것은 최대 오류신호는 TS 내에 저 왜곡 근사 합성파형이 생길 수 있다는 것이다. 이 방식은 유성음/묵음/TS의 새로운 음성부호화, 음성해석 및 음성 합성에 적용할 수 있으리라 생각한다.

• 경영과정보연구
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• 제9권
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• pp.1-23
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• 2002

The Information System is now becoming a very important part of our livers. It encompasses technical and spactial characteristics that are much more different from the order information systems used up until now. Therefore, as various fields within the Information Center are researched, the proper usage of those fields must be well thought-out. This study presents the application of quality management systems in Library, Korea. The purpose of this study is to build a framework of improving the management system and planning and performing the service of high quality in Library. To achieve this goal, a theoretical approach was tried through the previous study and the performed with the subject of the 4 steps by Damming' quality management theory. This study may enable domestic organizations to draw up a concrete and practical plan in Library.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제6권2호
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• pp.110-115
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• 2006

In pure P2P environment, it is possible to provide service by using a little real-time information without using accumulated information. But in case of using only a little information that was locally collected, quality of recommendation service can be fallen-off. Therefore, it is necessary to study a method to improve qualify of recommendation service by using users' context information. But because a great volume of users' context information can be recognized in a moment, there can be a scalability problem and there are limitations in supporting differentiated services according to fields and items. In this paper, we solved the scalability problem by clustering context information per each service field and classifying it per each user, using SOM. In addition, we could recommend proper services for users by quantifying the context information of the users belonging to the similar classification to the service requester among classified data and then using collaborative filtering.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2003년도 컴퓨터소사이어티 추계학술대회논문집
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• pp.31-34
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• 2003

In this paper, we propose an application of data hiding, especially for content adaptation, where one can reduce computational time and get better transcoding results or qualify. Hiding some useful information for content adaptation can help resource tailor to do effective transcoding so that one can achieve lower complexity as well as better quality in content adaptation. Experimental results show that the proposed method based on data hiding gives effectiveness to content adaptation with reasonable subjective quality.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2003년도 신호처리소사이어티 추계학술대회 논문집
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• pp.369-372
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• 2003

In this paper, we propose impr oved binary tree vector quantization based on spatial sensitivity which is one of the human visual properties. We combine the weights based on spatial masking effect according to changes of three primary colors in blocks of images with the process of splitting nodes using eigenvector in binary tree vector quantization. The test results show that the proposed method generates the quantized images with fine color and performs better than the conventional method in terms of clustering the similar regions. Also the proposed method can get the better result in subjective qualify test and PSNR.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 1999년도 추계종합학술대회 논문집
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• pp.676-679
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• 1999

In this paper, we presents a method to control prosody of the synthetic speech using sampling rate conversion technique. In prosody control, the conventional methods perform overlap and add. So the synthetic speech has a distortion and the voice quality is not satisfied. Using sampling rate conversion technique, we can get high Qualify of the synthetic speech. Also we can control various talking speeds according to speaker's patterns.