• The Journal of the Korea Contents Association
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• v.5 no.3
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• pp.113-122
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• 2005

The major purpose of this study is to explore the effect of the presentation undo combined by main four media(moving Image, audio, turf image) of web contents on the children's information processing process. So children were assigned to one of five experimental medium conditions: 'moving Image1 (auditory-visual redundancy)', 'moving Image2 (auditory-visual dissonance)', 'text', 'text-with-image', 'audio'. Results indicated that the moving image was found to be the most effective transmitter of internet news information for children's recall. And the recall advantage of moving image was found to be particularly pronounced for verbal information supplemented with redundant visual.

• The Journal of the Korea Contents Association
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• v.17 no.3
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• pp.370-381
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• 2017

Recently, a complex event processing system has been introduced to quickly and efficiently process real-time events in various applications. Since the existing complex event processing schemes do not consider the similarity and duplication of operators, they perform a lot of computations and consume memory. To solve such problems, this paper proposes an efficient complex event processing scheme considering similar operators and duplication operations. When the same primitive events have similar operations, the proposed scheme combines them into one virtual operator. For duplicated operations, the proposed scheme processes only one of them first, and then processes the others using the results of the already processed operation when the same operation is subsequently performed. It is shown through performance comparison that the proposed scheme outperforms the existing scheme in terms of the whole operation throughput.

• Digital Contents
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• no.11 s.66
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• pp.98-102
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• 1998

장황한(redundant) ; 쓸모없는(detrop), 산만한(diffuse), 과잉의(excessive), 필수적이지 않은(inessential), 완곡한(periphrastic), 반복적인(repetitious), 원하지 않는(unwanted), 불필요한(unnecessary) 등은 Chambers Twentieth Century 유의어 사전에서 발췌된 redundant의 유사어들이다(동 사전은 concise, essential, necessary 등과 같은 redundant의 반의어들의 명단도 잘 정리되어 있다). GROUP BY와 HAVING(이후부터는 GBH로 칭하기로 한다)으로 시작하는 절(clauses)들이 SQL내에서 반복적으로 사용된다는 사실을 알고 있는지에 대한 의문을 제기할 수 있다. 다시 말해, SQL 내에서 표현되고, 상기의 절들 모두 또는 어느 한쪽이 포함된 어떠한 종류의 상식적인 질문도 그러한 절들을 사용하지 않고도 표현될 수 있다는 것이다(필자가 여기서 '상식적'이란 말로 한정한 이유는 나중에 설명하겠다). 필자는 중복성에 관해 설명하고 이것이 내포하고 있는 의미에 관해 논의코자 한다.

• Journal of Digital Contents Society
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• v.2 no.2
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• pp.139-145
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• 2001

As e-commerce has been activated and internet has been used as usual, higher efficient search engine must be used to promote the value of information and take possession of the market place. all e-commerce user seller and buyer want to competitive goods Although these needs, search results are still much to be desired. In this paper, I will suppose two ideas which are abbreviation result and making blacklist. Abbreviation result is to hide results with common factors and making blacklist is to reduce null links of search results, which makes many useless results. This routine is made of making blacklist, check list, reduce list and append list.

• Proceedings of the Korea Contents Association Conference
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• 2015.05a
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• pp.75-76
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• 2015

본 논문에서는 대용량의 프로버넌스를 압축 저장하기 위한 OPM 기반의 RDF 프로버넌스 압축 기법을 제안한다. 제안하는 기법은 이미 존재하는 데이터 프로버넌스 및 새로운 데이터 프로버넌스를 사전을 기반으로 숫자 데이터로 인코딩한다. 또한 데이터 처리의 중복되는 부분은 서브그래프를 통해 압축한다.

• Proceedings of the Korea Contents Association Conference
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• 2016.05a
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• pp.59-60
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• 2016

사물통신 기기의 발달로 다양한 응용에서 대용량의 스트림 데이터의 실시간 복합 이벤트 처리 기법에 대한 중요성이 증가되고 있다. 본 논문에서는 유사 연산 처리 비용을 감소시키기 위한 다수의 복합 이벤트 처리 기법을 제안한다. 제안하는 기법은 다수의 복합 이벤트를 처리하기 위한 연산자를 그래프로 표현하고 중복적인 연산을 감소시킨다.

• Journal of IKEEE
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• v.23 no.2
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• pp.479-486
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• 2019

CCN utilizes MHT-based content authentication scheme. Some schemes propose improved MHT scheme to solve the inefficiency of the MHT-based content authentication scheme which is caused by repetitive hash value computation and witness transmission. For using MHT, it is essentially needed to minimize the possibility of error-occurrence as well as to improve the efficiency of the authentication scheme. This paper describes the improved MHT scheme is error-prone. Also, it analyzes the effect of a segment authentication error, especially, the degree of error propagation.

• Proceedings of the KIEE Conference
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• 2004.07d
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• pp.2586-2588
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• 2004

현재 SCORM 콘텐츠를 제공하는 대부분의 시스템은 콘텐츠에서 사용하는 데이터가 하나의 교육목표를 가지는 콘텐츠 패키지에 함께 포함되어 있다. 콘텐츠를 만들 때 필요한 파일은 공유를 하지만 교육 목표를 가진 하나의 독립단위로 생성이 되어 시스템 상에서 실행시킬 수 있는 패키지로 만들어지면 콘텐츠에서 사용하는 파일은 물리적으로 다 포함되어 있다. 그렇기 때문에 같은 파일로 여러 개의 콘텐츠가 만들어지면 각 콘텐츠 패키지마다 파일이 포함되어 있기 때문에 시스템은 같은 파일을 중복으로 가지게 된다. 그래서 본 논문에서는 콘텐츠에서 사용하는 이미지를 공유할 수 있는 이미지 웹서버를 구현한다. 구현한 웹 서버는 이미지 저장과 메타데이터 생성, 이미지 검색, 이미지 프로세스의 기능을 가진다.

• Journal of Digital Contents Society
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• v.19 no.7
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• pp.1281-1287
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• 2018

In this study, specific elements and functions in modules of the AAC (Augmentative and Alternative Communication) application for children with severe and multiple disabilities were elicited, and screen interface was designed accordingly. As results, screen configuration, communication display edition, audiovisual output, and switch and scanning modules were defined. Screen configuration module consists of communication category, spelling board, favorites, screen lock, and setting function. The Communication display edition module includes communication categories, symbols, and favorites edition. The audiovisual output module provides the ability to adjust the pitch, intensity, speed, and tone of the voice individually in the form of auditory output. In the form of visual output, the background color and size of the frame, border color and thickness are adjusted. The switch and scanning module provides a function to select by pressing the switch when the symbol cell is highlighted audibly and visually. The development of the AAC application designed in this study is needed.

• The Journal of the Korea Contents Association
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• v.14 no.5
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• pp.190-198
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• 2014

The purpose of study was evaluated associations among risk factors to have influence on HRQOL of community dwelling Elderly People. Total 314 community dwelling elderly persons(age:$75.80{\pm}5.64$[$mean{\pm}SD$]) who had no disease(n=81) and more than two chronic diseases (n=233) were interviewed based on the QOL questionnaires. During two months. The activities of daily living were evaluated using BI and FAI. Neuropsychological status was evaluated using GDS. Health related QOL was evaluated using the SF-36. The results emphasize the importance of preventing and controlling depression, chronic diseases, and low basic activities of daily living in order to reduce their impact on HRQOL among community dwelling elderly people.