• Proceedings of the Korea Contents Association Conference
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• 2010.05a
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• pp.569-572
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• 2010

맞춤형 이러닝은 학습효과의 증진을 위한 방안으로 개인 맞춤형, 개인화 혹은 적응화 등의 개념이 제안되고 확장되었다. 본 논문에서는 초기 선호도, 흥미도 혹은 검색습관을 고려하는 방식으로부터, 특정한 학습객체를 자율 선택하여 반복 학습할 수 있도록 개념단위를 적용한 방식, 학습자의 능력을 고려한 최적 난이도 학습객체를 제공하는 방식 등 다양하게 제안되고 있는 현대적 개인 맞춤형 이러닝 체계들을 비교 분석한다. 개별 시스템에 따라 '평가'에 국한되거나 '평가'와 '학습'을 연계하는 경우가 존재하며, 이에 따른 적용에 의하여 학습환경과 맞춤형 제공방식 및 학습효과를 상호 연계할 수 있음을 밝힌다.

• The Journal of the Korea Contents Association
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• v.20 no.8
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• pp.138-151
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• 2020

This study aimed to analyze the mediating effect of conflict resolution strategies of college students on subjective well-being through adaptation to college life and to verify the moderating effect by mentalization. The study subjects were 248 college students. As a result of the study, first, the positive conflict resolution strategy, compromise and cooperation strategy, had a significant direct effect on subjective well-being, and a mediating effect through adaptation to university life. Second, concession, avoidance, and domination strategies showed significant mediated moderating effects of mentalization through adaptation to college life. Third, the moderating effect of mentalization was significant in the direct effect of concession and avoidance strategies on subjective well-being. Through these results, there was verification on the importance of a positive conflict resolution strategy, and a discussion on the harmful effects of concession, avoidance, and domination strategies by the level of mentalization on college students' adaptation and subjective well-being.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.28 no.10B
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• pp.899-915
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• 2003

Delivering rich and continuous media contents robustly over a wide range of network conditions of the wired/wireless Internet is a highly challenging task. To address this challenges, the continuous media applications at the edge of network has become more and more adaptive while the best-effort Internet is slowly progressing towards improved networking services. That is, the role of network adaptive media delivery, which dynamically links the quality demand of application contents to the underlying networking services, has become more crucial. In this paper, we will first review the required network adaptation functionalities seen from the application side: congestion control / rate control, error control, and synchronization / adaptive playout. Then, we start the coverage of networking support issues that helps the realization of network adaptive media streaming - from network support and protocol support toward consolidated support via middleware. Finally, we propose a dynamic network adaptation framework that efficiently leverages its awareness of both media application (including contents) and underlying networking support.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.7
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• pp.1618-1626
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• 2013

Virtualization service processes all operation including the data creation, storing, and disposal in a server and transmits processed data as the streaming media form. Therefore, client can use the same environment as the traditional desktop environment without considering the type of device. Virtualization service should consider not only the video quality but also the delay bounds and continuity of video playback for improving the user perceived Quality of Service(QoS) of streaming service. In this paper, we propose a network-adaptive transmission architecture that focuses on guaranteeing QoS requirements for virtualization service. In order to provide those, the proposed architecture have the transmission rate adaptation function based on available bandwidth and the content bit-rate control function based on sender buffer state. Through each function, proposed architecture guarantee the delay bounds and continuity of virtualization contents playback. The simulation results show that proposed network-adaptive transmission architecture provides a improve performance of throughput and transmission delay.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2013.06a
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• pp.36-39
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• 2013

본 논문에서는 차세대 스마트 TV 환경에서의 적응형 멀티스크린 서비스 시스템 구조를 제안하고, 이를 실제 스마트 TV 에 적용 가능하도록 프로토타입 시스템으로 구현한 결과를 보여준다. 제안 시스템은 적응형 콘텐츠 부호화 기술과 하이브리드 네트워크 전송 기술, 멀티스크린 서비스 발견 및 제어 기술을 포함하고 있다. 스마트 TV 를 중심으로 다양한 종류의 멀티스크린 장치가 연결되는 서비스 소비환경에 적응적인 콘텐츠를 제공하기 위해서 H.264/SVC 기반의 다계층 비디오 부호화/복호화 기법을 적용하였다. 또한, 다계층 부호화된 콘텐츠를 방송망과 인터넷 등 이종 멀티네트워크를 이용해 동시에 전송함으로써, 전송 대역의 가용성을 확장하는 하이브리드 네트워크 기반의 미디어 전송 기술과 UPnP 기반의 사용자 중심 멀티스크린 서비스 발견 및 이동기술을 제안한다. 기존의 멀티스크린 서비스가 단말의 소비환경에 비 적응적이고, 홈 네트워크 환경 및 플랫폼 폐쇄적인 환경에서 제공되는 단방향 멀티스크린 서비스인 반면, 본 논문에서 제안하는 적응형 멀티스크린 서비스 시스템은 네트워크 및 단말의 소비환경에 적응적이고 효과적인 웹 기반의 양방향 멀티스크린 서비스를 제공할 수 있다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.10a
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• pp.320-323
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• 2008

Due to the improvement of mobile device capabilities, a demand for various contents service is increasing. But the differences from heterogeneous mobile devices force to develop contents which is dependent on a mobile. To solve this problem, adaptation course that reorganize contents by the device capability is needed. In this course, device description is described using device description language but there are some problems that is absence of device description repository and the way to get device description data. In this paper, I suggest device description acquisition module and define the interfaces to access device description repository that I designed and implemented.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.12 no.11
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• pp.2091-2096
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• 2008

Due to the improvement of mobile device capabilities, a demand for various contents service is increasing. But the differences from heterogeneous mobile devices force to develop contents which is dependent on a mobile. To solve this problem, adaptation course that reorganize contents by the device capability is hooded. In this course, device description is described using device description language but there are some problems that is absence of device description repository and the way to get device description data. In this paper, I suggest device description acquisition module and define the interfaces to access device description repository that I designed and implemented.

• The Journal of the Korea Contents Association
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• v.14 no.4
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• pp.368-378
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• 2014

This paper is 1) to analysis how attitude of cross-cultural and personal traits affects on acculturation for foreigner students living in seoul, and 2) to suggest some guideline that can be helpful to fast adaption in college life and Korea living and also to utilize personal resource in organization. The findings are showed up as followed; The first, 'cultural distance' factor had high significant on 'social custom' in acculturation and also, two factors which are 'flexible culture' and 'recognition of cross-culture' affect on 'human relations' in acculturation. The second, 'flexible culture' factor and 'recognition of cross-culture' factor had influence on 'living satisfaction' in Korea. The third, foreign students who have length of stay less than 4 years had high recognized on 'social custom' and people who have length of stay 3 years come under 'traditional culture' factor. The fourth, an extrovert and female students had high recognized on 'human relationship' factor, and an oriental had high recognized on 'living culture' factor.

• The Journal of the Korea Contents Association
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• v.10 no.11
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• pp.285-293
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• 2010

The purpose of this study was to analyze the predictors of students depress, Interaction anxiety, school adjustment on cellular phone addiction of teenagers. The subjects for this study were 613 teenagers composed of 249 middle school students, 337 high school students in Daejeon. The data was conducted by using a correlations coefficient and the multiple regression analysis. According to the analysis result, correlations among measured variables of students depress, interaction anxiety, school adjustment, cellular phone addiction were significant. Secondly, the multiple regression analysis result showed that students depress, peer relations, and interaction anxiety variables to most greatly explain cellular phone addiction. These results indicate that cellular phone addiction related to depress, interaction anxiety of teenagers.

• Proceedings of the Korean Information Science Society Conference
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• 2006.06b
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• pp.67-69
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• 2006

본 논문에서는 소형 단말기에서 다량의 멀티미디어 콘텐츠를 효과적으로 정렬, 검색. 액세스 할 수 있는 새로운 멀티미디어 콘텐츠 브라우저를 제안한다. 또한 다중 플랫폼화 되어가는 컴퓨팅 환경 변화에 적응하기 위한 마이그레이션 시스템 구조를 제안하고, 이를 기반으로 멀티미디어 콘텐츠 브라우저를 확장하여 이기종 단말기에서 멀티미디어 콘텐츠에 대한 액세스를 가능하게 하였다. 제안 브라우저에 대한 사용성 평가를 통하여 제안 브라우저의 유용성 및 활용 효율성을 보였다.