• Proceedings of the Korea Information Processing Society Conference
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• 2003.11c
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• pp.1509-1512
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• 2003

DTD를 대체하기 위해 개발된 XML 스키마는 전역 및 로컬 기능, 확장성과 다양한 타입변화등 많은 특성을 가지고 있어 향후 DTD를 대신하여 XML 스키마의 사용이 날로 늘어날 것이다. 본 논문에서는 XML 스키마를 설계하는 방법으로 EER 다이어그램을 이용하여 XML 스키마를 설계하는 기존의 방법을 수정 보완한 새로운 설계방법을 제시한다.

• The Journal of Korean Association of Computer Education
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• v.5 no.3
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• pp.107-116
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• 2002

In order to enhance instructional effects of multimedia contents, it is critical to emphasize the importance of interface and the affective aspects of learner characteristics in design processes. The main aim of this research was to assess the needs for evaluating icon design strategies on the basis of children's sensibilities by investigating differences between children and teachers in their sensibilities to the icons used in multimedia contents for elementary education. Some interesting findings were obtained from the research. Children had richer sensibilities to the icons presented in multimedia contents than teachers in terms of the average number of adjectives reflecting sensibilities. Among the children group, children living in urban areas showed richer sensibilities to the contents than those in rural areas. When the frequencies of the use of 5 adjectives commonly used by the two groups were compared, teachers showed positive sensibilities, but children demonstrated some negative sensibilities. Also children demonstrated richer sensibilities to certain contents than teachers. The results of the research indicated the need for evaluating icon design strategies on the basis of children's sensibilities in designing multimedia contents for children.

• Archives of design research
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• v.13 no.4
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• pp.195-201
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• 2000

To find out media's function on the various effects in communication, this paper reviews studies that utilize multimedia as a device for conveying information. We discuss multimedia as an integrated symbol system with advantages and also problems in representing information. The cognitive dissimilarity of media could be explained by various attributes of medium that are about physical characteristics and even cognitive actions. With advantages from integrated media and interactivity, multimedia has negative results such as cognitive overload and in that reason systematic approach is needed. This paper shows the factors on media selection and relationship to interface components. To select appropriate media to the needs and situation, it should be considered the user's ${\circled1}$background ${\circled2}$knowledge / frequency of use / expertise, contents ${\circled1}$task nature ${\circled2}$type of knowledge and media ${\circled1}$representation format ${\circled2}$interaction techniques. Varying the media factors and varying the expression factors offers concrete design features.

• Journal of Korea Game Society
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• v.11 no.4
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• pp.163-174
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• 2011

The purpose of this study was to apply a variety of criteria to analyzing mobile applications for early childhood education, which are now available in application market, and was also to explore how the developmental characteristics and multimedia content characteristics of early childhood could be applied to mobile applications for early childhood education. To meet these purposes, this study targeted total 61 applications for infancy education in terms of mobile applications loaded on online education categories such as iPhone App Store and Android Market. Based on analytic criteria on the foundation of content type by learning type, cognitive load theory and multimedia design principle, this study analyzed those applications for early childhood. As a result, it was found that there were needs to develop a little more various categories of applications, and there were also needs to develop such applications that they can make the best use of smart phone's performance, comply with multimedia design principles but avoid any imprudent use of multimedia.

• Journal of the Korea Society of Computer and Information
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• v.14 no.7
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• pp.123-132
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• 2009

The perforrnance and portability of mobile applications can be greatly increased by adopting proxy modiles which exists between the conventional system and the device. When mobile devices collaborate with the conventional computers, there are problems to address: a battery life problem, limited input and output methods, and intermittent wireless connection. Those issues are magnified in the multimedia collaboration environment since it works in a real-time condition and the size of the message in the system is big in many cases. Additionally, because multimedia collaboration system softwares are too heavy and complex for mobile devices, it is veη hard to integrate them with conventional systems. In this paper, we describe our design and its implementation of a novel approach to map events (i.e. messages) using a proxy for mobile applications. We adopt a proxy to provide a content adaptation (i.e. transcoding) where the message contents are customized. Also, we design a mobile version publish/subscribe system to provide communication service for mobile device in loosely coupled and flexible manner. We present our empirical results which show that our design can be efficiently implemented and integrated with a conventional multimedia collaboration system.

• IEIE Transactions on Smart Processing and Computing
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• v.5 no.1
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• pp.1-4
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• 2016

In this paper, we present an algorithm for adjusting the position of a user-specified object considering image aesthetics. Specifically, the user-specified object is positioned according to the rule of thirds by inserting or deleting unimportant seam lines from the image. To find such seam lines, a novel weight map is designed using the spatial and color distances from the object. We also design and analyze two approaches to seam carving and insertion. Experimental results show that the proposed method can be used as an effective semi-automatic image recomposition scheme.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.20 no.41
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• pp.189-196
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• 1997

Multimedia systems present information by various media, for example, video, sound, music, animation, movie, etc., in addition to the text which has long been used for conveying the information. But using several media may cause users' confusion and poorly designed user interface often aggravate the situation. Hypermedia systems allow the retrieval and representation of multimedia information using navigation and browsing mechanisms. Typically, there are two major navigation problems in a hypermedia compared to the ordinary user interface: disorientation and cognitive overload. In this study, the multimedia system was studied from the viewpoint of usability. Practical usability evaluation needs cost-effective, low-skill, and low- investment methods. The 'discount usability engineering' method, one of these methods, is based on the use of the following techniques: scenarios, simplified thinking aloud, and heuristic evaluation. The discount usability engineering method was applied to the usability evaluation of multimedia CD-ROM title.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 1998.06a
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• pp.246-251
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• 1998

The basic requirement of a distributed multimedia system are intramedia synchronization which asks the strict delay and jitter for the check period of media buffer and the scaling duration with periodic continuous media such as audio and video media, and intermedia synchronization that needs the constraint for relative time relations among them when several media are presented in parallel. In this paper, a distributed multimedia synchronization algorithm based on the fuzzy logic is presented and the performance is evaluated through simulation. Intramedia synchronisation algorithm uses the media scaling techniques and intermedia synchronization algorithm uses variable service rates on the basis of fuzzy logic to solve the multimedia synchronization problem.

• Journal of Korea Society of Digital Industry and Information Management
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• v.5 no.1
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• pp.127-139
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• 2009

Recently a rapid development of Information Technology including Internet have brought new way of education such as Distance education, Cyber University, Home Schooling and so on. This change of education have also brought about the change of a tool and medium for education. It is a using multimedia contents in education. Using the multimedia learning contents on line education is considered as one of new way of education and expected to bring learner's better performance. Therefore, it's necessary to research online education contents and its design. In this paper, we discussed how the multimedia contents should be designed to help to reinforce what the learner have learned and researched a critical factor of online contents to effect on learner's better performance.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.04a
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• pp.411-414
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• 2017

부모와 유아가 함께 보내는 프로그램이 많아지면서 자연적으로 부모와 유아가 함께 보내는 시간에 대한 관심이 크게 증가하고 있다. 하지만 부모와 유아가 함께 할 수 있는 콘텐츠에 대한 정보 제공 서비스는 속도를 따라가지 못하고 있다. 이에 본 논문에서는 부모와 유아가 함께 즐길 수 있는 육아 콘텐츠정보 제공 웹페이지를 설계하고 구현하였다. 부모와 유아가 함께 할 수 있는 여행지 추천, 게임, 요리 레시피 제공을 통해서 부모와 유아가 함께 할 수 있는 콘텐츠를 제공함을 목적으로 하였다. 본 논문에서 구현한 웹 페이지의 사용으로 유아를 가진 부모들의 정보제공에 도움이 되기를 기대한다.