• Electronics and Telecommunications Trends
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• v.24 no.4
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• pp.28-40
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• 2009

웹 2.0 시대를 맞이하여 어느 특정 기업의 기술이 아닌, 개인들의 참여를 기반으로 하는 서비스 인프라가 인터넷 서비스 분야의 핵심 기술로 자리매김하고 있다. 사용자 참여형 서비스 인프라는 사용자에게 작업 환경을 제공하거나 소프트웨어의 개발 및 유통을 지원하여 개인이 제작한 콘텐츠와 소프트웨어를 이용해 집단 지성이 쌓이면서 수익이 창출되도록 하고 있다. 본 논문에서는 사용자 중심의 서비스 인프라로서 이동형 소프트웨어 플랫폼 YouFree$^{TM}$을 소개한다. 본 논문에 소개된 YouFree$^{TM}$은 사용자에게 언제 어디서나 편리한 개인맞춤의 작업 환경을 제공해 사용자가 쉽게 콘텐츠 제작에 참여할 수 있고, 개발환경을 이용해 필요한 소프트웨어를 쉽게 개발할 수 있다. 또한, 제작된 콘텐츠와 개발된 소프트웨어를 쉽게 유통시킬 수 있다.

• Journal of KIISE:Software and Applications
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• v.34 no.6
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• pp.539-548
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• 2007

Mobile content adaptation is a technology of effectively representing the contents originally built for the desktop PC on wireless mobile devices. Previous approaches for Web content adaptation are mostly device-dependent. Also, the content transformation to suit to a smaller device is done manually. Furthermore, the same contents are provided to different users regardless of their individual preferences. As a result, the user has difficulty in selecting relevant information from a heavy volume of contents since the context information related to the content is not provided. To resolve these problems, this paper proposes an enhanced method of Web content adaptation for mobile devices. In our system, the process of Web content adaptation consists of 4 stages including block filtering, block title extraction, block content summarization, and personalization through learning. Learning is initiated when the user selects the full content menu from the content summary page. As a result of learning, personalization is realized by showing the information for the relevant block at the top of the content list. A series of experiments are performed to evaluate the content adaptation for a number of Web sites including online newspapers. The results of evaluation are satisfactory, both in block filtering accuracy and in user satisfaction by personalization.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.05a
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• pp.993-996
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• 2005

현재 국내에서 웹을 기반으로 한 e-learning 콘텐츠는 많이 개발되고 있으나 이들 대부분이 매뉴얼 식으로 제작되어 멀티미디어 형식만 빌려 텍스트 형태로만 구성하는 방식이 주를 이루고 있는 실정이다. 따라서 본 논문에서는 교사가 주도하는 일제식 수업 형태가 아닌 웹 상에서 창의적이고, 자기 주도적으로 개인차에 따라 학습 속도를 조절할 수 있는 프로젝트 학습기법을 국내 교육환경에 맞게 교수-학습 이론을 적용하여 컴퓨터 교과목을 개발.활용하는 데 그 목적이 있다.

• Journal of Digital Contents Society
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• v.10 no.4
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• pp.529-536
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• 2009

Interest in Chinese edutainment contents product has been increasing with the importance of Chinese Education Recently, empirical education with some fun activities is in the limelight breaking the traditional passive learning. Due to a such social necessity, we develop web-based Chinese Edutainment Contents for children, utilizing multimedia functions. Especially since writing Education is very important in learning chinese characters, we also developed a writing recognition function which checks the order of making strokes in writing Chinese character. Different from the existing outline area-based writing system, it determines if the character is well-written comparing to the prestored reference points in each Chinese characters, after recognizing the order of strokes and extracting peculiar points.

• Journal of Digital Contents Society
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• v.11 no.4
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• pp.579-588
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• 2010

Generalization of the web, development of one-person media such as the blog and mini homepage, and integration of video digital devices have generalized multimedia video services on the web. However, flash videos, the previously used bit map-based multimedia videos, exhibit problems like the waterfall phenomenon, lag phenomenon, or non-synchronization of audios or videos. Thereupon, This study is conducted to suggest a converting technique to provide efficient web video service on the web by solving problems of bitmap-based flash video through file format-converting software and movie editing programs. And this paper also conducts experiments on five videos for 13 CODECs and analyzes converted results comparatively. The recommendable method considering the characteristics of each videos is to utilize MainConcept H.264 Video CODEC using SWF2Video pro. The result of this research can be used to produce web videos on the web more effectively.

• The Journal of the Korea Contents Association
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• v.11 no.4
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• pp.121-131
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• 2011

Visual tactility implies feelings of touch through sight. To be exact, the eyes are doing the touch rather than the body and the subject concerned will experience the sensation of touch by looking at an object similar to that of physical touch. This is quasi tactility to put it simply and it can be defined as to touch with the eyes. This can not only provide opportunities to experience something close to reality but also another completely different form of modern experience. Experiencing visual tactility through the use of the web permits lavish communication between the user and the designer. This paper has reorganize the concept of visual tactility, characteristic and way to use in digital contents. Visual tactility stimulates the users' emotion as such. If it was to be utilized to develop edutainment contents or web sites will foster children's capability to develope problem solving skills and raise efficiency in creative learning, and prolong the period of concentration in order to encourage revisits to the place and extend the time of stay.

• Journal of Korea Multimedia Society
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• v.12 no.1
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• pp.69-84
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• 2009

In this paper, a real-time web-casting framework for many individuals or small organizations imploring internet broadcasting, is designed and implemented. It is the purpose of the proposed framework that any individual can easily construct his own broadcast station if he has minimum facility for the content transmission to the framework. This type of system should have a flexible architecture to be applicable in wide variation of operational environment. Since the proposed framework follows a component-based hierarchical structure consisting of 3 types of components, it can effectively cope with change of internal or external operational environment by simple modification of the associated component with the change. Also, various types of target application systems in the aspects of cost and performance can be constructed in accordance with how to associate upper layer components with hardware platforms. A real prototype system based on the proposed framework is implemented, and then the response delay time is measured under varying number of content productions and content receivers. The results show that the response delay time follows M/M/1 model, which is one of the well-known performance models, and the implemented system may accommodate from 16 to 20 productions.

• KIISE Transactions on Computing Practices
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• v.21 no.4
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• pp.299-307
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• 2015

Currently, many kinds of World Wide Web contents are produced by an individual journalism. Users who simply obtain information by surfing the web becomes the producer, and many contents created by these users reflect on their own interesting topics and social issues. Among these issues, the environmental contents are considered in this study, which we proposed as EcoMap, a media service platform for such contents. In terms of EcoMap, a way of thinking about our own environment would be affected, and the environmental information will be produced and shared more effectively by the users on the web.

• Journal of Digital Contents Society
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• v.14 no.4
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• pp.513-519
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• 2013

In this paper, we provide interfaces according to user application environments and provide tools through web-site that users can create interface to apply a wide range of application environment. HTML5 is used in the creation processing, so users can create various interfaces by dragging mouse and apply it to multimedia, game applications as well as documents by using the ASCII code and key events that are provided in the Android OS. Database of interfaces is stored in HDFS (Hadoop Distributed File System) based on Hadoop for management and users can have their own designed interface or select interfaces through simple login any time. In order to provide interface quickly, HIVE based on Hadoop is used for search and the data is provided in XML file which smart mobile can process quickly.

• Proceedings of the Korea Contents Association Conference
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• 2003.11a
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• pp.48-52
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• 2003

인터넷이 보편화되고 교육 분야에서도 웹을 이용한 원격 학습에 많은 연구와 기술이 개발이 이루어지고 있다. 그러나 기존의 e-learning 시스템은 학습 자원의 재사용 문제 등 여러 가지 문제점이 제시되고 있다. 본 논문에서는 학습 컨텐츠의 제작과 학습 관리 시스템의 구현에 있어 학습의 상호 작용성을 높이고 학습자의 개별적인 특성에 알맞게 지능적으로 학습을 지원할 수 있는 학습 관리 로직을 설계한다. 또한 컨텐츠의 재사용을 고려하여 시스템간 상호 운용성을 보장할 수 있는 SCORM 표준을 기반으로 한 학습관리 시스템을 설계한다.