• Journal of Information Science Theory and Practice
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• v.6 no.3
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• pp.25-36
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• 2018

Anonymity plays an increasingly important role on social media. This is reflected by more and more applications enabling anonymous interactions. However, do social media users behave different when they are anonymous? In our research, we investigated social media services meant for solely anonymous use (Jodel) and for widely spread non-anonymous sharing of pictures and videos (Instagram). This study examines the impact of anonymity on the behavior of users on Jodel compared to their non-anonymous use of Instagram as well as the differences between the user types: producer, consumer, and participant. Our approach is based on the uses and gratifications theory (U>) by E. Katz, specifically on the sought gratifications (motivations) of self-presentation, information, socialization, and entertainment. Since Jodel is mostly used in Germany, we developed an online survey in German. The questions addressed the three different user types and were subdivided according to the four motivation categories of the U>. In total 664 test persons completed the questionnaire. The results show that anonymity indeed influences users' usage behavior depending on user types and different U> categories.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.14 no.3
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• pp.1228-1248
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• 2020

Steganalysis & steganography have witnessed immense progress over the past few years by the advancement of deep convolutional neural networks (DCNN). In this paper, we analyzed current research states from the latest image steganography and steganalysis frameworks based on deep learning. Our objective is to provide for future researchers the work being done on deep learning-based image steganography & steganalysis and highlights the strengths and weakness of existing up-to-date techniques. The result of this study opens new approaches for upcoming research and may serve as source of hypothesis for further significant research on deep learning-based image steganography and steganalysis. Finally, technical challenges of current methods and several promising directions on deep learning steganography and steganalysis are suggested to illustrate how these challenges can be transferred into prolific future research avenues.

• Proceedings of the Korean Information Science Society Conference
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• 2006.10b
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• pp.58-61
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• 2006

대량으로 존재하는 웹자원에 대한 디렉토리 및 검색서비스를 제공하는 포털서비스로의 집중화 현상이 계속해서 심화되고 있다. 상대적으로 주소를 통한 자원으로의 접근은 약화되고 있다. 포털서비스와 접근수단 그리고 최종 목적지인 콘텐츠사이트 간의 확률적 모델을 통하여 포털사이트로의 집중화 현상이 콘텐츠 접근 모델에 있어서의 구조적인 특징에 기인함을 알 수 있었다. 많은 이용자들이 시작페이지로 포털사이트를 설정하고 있고, 주소를 입력 할 때는 주소창 보다는 포털의 검색창에 입력하고 있음으로 해서 포털서비스가 주소서비스를 대체하고 있다.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11b
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• pp.598-600
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• 2005

본 논문에서는 터치스크린을 사용한 디지털보드게임에서 사용자에게 게임의 전락 정보 제공을 통해 게임의 습득 속도를 증가시켜 줄 수 있는 PGA(Portable game assistant)를 제안한다. 기존의 디지털보드게임은 모든 게이머를 위한 공동영역과 개인만을 위한 개인영역으로 나눈다. 공동영역에서는 모든 사용자가 알아야 하는 게임환경과 도움말을 제공하고, 개인영역에서는 게임 진행에 필요한 게임화면과 말의 정보를 제공한다. 우리는 공동영역인 게임테이블에서 터치스크린을 사용하여 게임을 진행하고, 개인영역에 게임의 재미를 더 하기 위하여 PGA를 사용하여 게임의 전략을 그래픽으로 제공한다. 우리는 배우기 쉽고 전략적으로 지원이 필요한 장기게임에 제안된 시스템을 적용하였으며, 앞으로 본 시스템에 게임 애니메이션, 사운드 등을 추가하여 다양한 테이블보드게임에 전략적인 측면과 동적인 측면을 함께 제공할 것이다.

• Proceedings of the Korea Information Processing Society Conference
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• 2022.11a
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• pp.637-639
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• 2022

장면 전환 검출을 위해 히스토그램 등 단일 특성만 고려할 경우 움직임이 많은 영상과 조명의 변화가 다양하거나 단조로운 색상으로의 장면 전환이 일어나는 영상에 검출이 어렵다는 단점이 있다. 이를 개선하기 위해 프레임 간 색상 히스토그램을 비교 후, SURF를 적용하는 방법을 제안한다.

• Korean Institute of Interior Design Journal
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• v.20 no.6
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• pp.183-191
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• 2011

This study is to set up the appropriate range of observation time through contemplating the characteristics of observation time run for the information acquisition of space. The conclusions reached through this study are as the followings. First, this study could find out that even though the evaluation elements on the three types for image evaluation were the same, the information acquisitions were different as those types varied. On the other hand, the change of the average run-time by type for the information acquisition was found not to be big, in other words, even though the run-time was alike, the information acquisitions varied depending on the type. Second, he evaluation by language media showed the average value by element had the order of [shape>position>number>existence] and the range of their run-time was 94.6~102.9 seconds. The average rate of information acquisition shown at the visual media had the order of [composition>shape>material&color] and the range of run-time was 93.1~99.7 seconds. Third, the evaluation by language media showed that for male subjects the range of information acquisition rate was 39.1~91.4% and that of run-time 85.1~106.0 seconds and for female ones 46.0~94.6% and 96.3~112.3 seconds respectively. In case of the visual media, male subjects showed the range of information acquisition rate was 40.3-66.7% and the range of run-time 82.4~97.9 seconds and the female ones, 42.2~71.0% and 94.0~115.1 seconds respectively, through which we could see that at the evaluation by language media and visual media both the female's range of information acquisition and that of observation time were higher than the male's.

• Journal of the Korean Society for information Management
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• v.24 no.4
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• pp.119-132
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• 2007

This study analyzed the difference of learning efficiency by using information media applications for undergraduate students. The survey samples for research were 106 and the results showed significant by simple regulation analysis on computer applications and information media applications with t=2.990(p=0.003), sig=0.05 and on information media applications and learning efficiency with t=41.758(p=0.000), sig=0.05. Otherwise, the result showed no significant on computer applications and learning efficiency with t=-1.756(p=0.082), sig=0.05. As a result, this study provided basic materials on more effective teaching methods than a class using information applications. As providing facts to be consider a class using information media this study found to be new directions on effective information education and teaching methods.

• Journal of Digital Policy
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• v.3 no.1
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• pp.11-20
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• 2024

The intelligent information society is expected to drastically change our lives. The purpose of this content is to derive tasks in the field of media education for the elderly for the realization of digital inclusion in an intelligent information society. To this end, the vision, goals, strategies, and tasks of the intelligent information society were examined through the 6th National Informatization Basic Plan(2018~2022) and the 2022 Education Informatization White Paper(2022). In addition, the current status of the digital gap among the elderly classified as vulnerable groups was identified through the results of the 2022 Digital Information Gap Survey. In order to ease the digital information gap between the elderly in the intelligent information society, it is believed that the development of intelligent media education services using intelligent information technology, provision of media education services for the elderly through learning online service channels, and support for digital intelligent media education for the elderly are necessary.

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2006.07a
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• pp.402-402
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• 2006

• Korean journal of communication and information
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• v.37
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• pp.43-72
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• 2007

This article is media education uses type of a middle high school students and research about effect that is taking media education. Measured media education uses motivation, studies own effect academic self-efficacy, media competence and school achievement for this research. As analysis result, priority media education uses motive was 'teaching convenience/help sought', 'Information/education method picking up sought', 'new teaching/communication thoroughgoing sought', 'ability elevation pursuit', 'self-regulating education sought', 'up-to-dateness sought', 'New knowledge/education sought' of order. By next time, only 'new knowl edge/education sought' motive caused positive effect in studies own effect among media education uses motive. Among media education uses motive, 'teaching convenience/help sought', 'Information/education method picking up sought', 'New study/communication thoroughgoing sought', 'self-regulating education sought', 'up-to-dateness sought' motive caused positive effect in media competence. Also, it caused positive effect among media education uses motive 'self-regulating education sought' and 'new knowledge/education sought' in students' school achievement. Finally, 'academic self-efficacy' is 'media competence' more in school achievement influence. Media education influenced new teaching method and ability elevation to some students. But, academic self-efficacy and school achievement did not cause big effect students. However, media education influenced in some students' media competence elevation.