• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권8호
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• pp.2571-2586
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• 2022

The rapid popularity of government social media has generated huge amounts of text data, and the analysis of these data has gradually become the focus of digital government research. This study uses Python language to analyze the big data of the Chinese provincial government Weibo. First, this study uses a web crawler approach to collect and statistically describe over 360,000 data from 31 provincial government microblogs in China, covering the period from January 2018 to April 2022. Second, a word separation engine is constructed and these text data are analyzed using word cloud word frequencies as well as semantic relationships. Finally, the text data were analyzed for sentiment using natural language processing methods, and the text topics were studied using LDA algorithm. The results of this study show that, first, the number and scale of posts on the Chinese government Weibo have grown rapidly. Second, government Weibo has certain social attributes, and the epidemics, people's livelihood, and services have become the focus of government Weibo. Third, the contents of government Weibo account for more than 30% of negative sentiments. The classified topics show that the epidemics and epidemic prevention and control overshadowed the other topics, which inhibits the diversification of government Weibo.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제17권8호
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• pp.2241-2258
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• 2023

This study developed digital literacy instruments and tested their effectiveness on college students' perceptions of AI technologies. In creating a new digital literacy test tool, we reviewed the concept and scale of digital literacy based on previous studies that identified the characteristics and measurement of AI literacy. We developed 23 preliminary questions for our research instrument and used a quantitative approach to survey 318 undergraduates. After conducting exploratory and confirmatory factor analysis, we found that digital literacy in the age of AI had four ability sub-factors: critical understanding, artificial intelligence social impact recognition, artificial intelligence technology utilization, and ethical behavior. Then we tested the sub-factors' predictive powers on the perception of AI's usefulness and ease of use. The regression result shows that the most common powerful predictor of the usefulness and ease of use of AI technology was the ability to use AI technology. This finding implies that for college students, the ability to use various tools based on AI technology is an essential competency in the AI era.

• 디지털융복합연구
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• 제18권8호
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• pp.377-383
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• 2020

본 논문에서는 모바일 미디어 플랫폼 기반의 personal media의 발전과 프로젝션 맵핑 기술의 벌전을 연구하였다. 사회 생활이 빠르지며서 정보 전파도 파편화되고 있다. 최근에 빠르게 발전하는 모바일 기술로 인해 personal media는 점차 사람들 사이에서 관심이 집중되고 있다. 모바일 디바이스의 그래픽과 동영상 처리 기술의 발달로 이미지 제작이나 동영상 편집제작이 간편해지면서 personal media의 활성화를 위한 제작 환경을 제공하였다. 동시에 프로젝션 맵핑 기술을 발전하므로 컴퓨터와 모바일 기반에 프로젝션 매핑을 제작한 전문 소프트웨어도 계속 발전하고 있다. 현재 프로젝션 맵핑을 활용한 창작성 높은 영상콘텐츠의 등장은 많은 대중에게 새롭고 매력적인 영상콘텐츠를 제공하고 있다. 인터넷 속도가 빨라지고 모바일 기기의 성능이 강화되면서 디지털 영상 콘텐츠에 대한 창작 및 전시가 더 많은 가능성이 있다. 프로젝션 맵핑의 혁신적인 영상제작 기법은 향후 모바일 미디어 플랫폼 기반에서도 널리 활용될 가능성이 높다고 사료된다.

• 융합보안논문지
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• 제15권6_2호
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• pp.37-44
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• 2015

사회구조의 변화에 따라 범죄연령의 변화도 발생하며, 범죄종류와 형태도 다양하게 나타나고 있다. 이에 대해 본 논문은 에밀 뒤르껭(E. Durkheim)의 아노미(Anomie) 이론을 접목하여 설명하고 있다. 아노미는 이중규범 또는 규범이 없는 상태를 의미한다. 즉, 기존의 지배적 규범이 약화되면서 새로운 규범이 정립되지 않았을 때 무규범 또는 이중규범 상태가 되어 사회적 혼란 상태를 야기 시킨다고 하는 것이다. 정보통신기술의 발달로 인한 SNS의 보급과 활용은 사회적 규범을 약화시키며 온라인상의 규범은 정립이 미약한 상태이다. 이러한 규범의 혼란 상태에서 청소년 비행은 증가하여 나타나고 있다. 소셜 미디어는 전파성, 개방성, 접근성, 관계성, 콘텐츠다양성 등의 특성을 갖고 있다. 이러한 소셜 미디어는 그 자체가 일종의 유기체처럼 성장하기 때문에 소비와 생산의 일반적인 매커니즘이 적용되지 않고, 양방향성을 활용하여 이용자들이 자발적으로 참여하고 정보를 공유하며 콘텐츠를 만들어 나가는 특성이 있다. 소셜 미디어는 청소년층에서 소통과 정보, 접촉수단으로 자리 잡고 있고, 이에 따른 비행의 접촉율도 높다. 소셜 미디어는 청소년 범죄에 직 간접적으로 영향을 미치고 있으나 이에 대한 제도적 규제도 뚜렷이 없는 실정이다.

• 한국문헌정보학회지
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• 제44권1호
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• pp.29-51
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• 2010

지식정보사회에서는 창의적이고 자주적인 사람을 요구한다. 본 논문에서는 구성주의 교수-학습이 학습자의 자주적 학습능력을 향상시킨다고 보아 자주적 학습을 지원하기 위한 학교도서관의 구성주의적 교수-학습 매체센터로서의 운영방안을 제시하였다. 구성주의를 바탕으로 한 자주적 학습은 학교도서관이 교수-학습 매체센터로 운영될 때 가능하며 다양한 학습자료와 직접적인 상호작용이 클수록 창의적이고 자주적 능력이 향상된다고 판단된다.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 1996년도 Proceedings International Workshop on New Video Media Technology
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• pp.77-81
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• 1996

In order to conform to the needs of effective program production in multimedia era, we are studying Desk Top Program Production system. With the DTPP, users can easily produce multimedia program including video, sound, and ancillary data, and freely handle video images synthesizing video components retrieved from video database. This paper describes the new program production system, DTPP and its key technologies such as cooperative program production via multimedia network, indexing and utilization of attribute information of images, and image segmentation and spatio-temporal editing.

• 기술사
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• 제31권1호
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• pp.9-16
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• 1998

For the flow facing high1y informationized age, there is a flow from fixed communications connecting fixed places such as offices and homes to mobile communications connecting mobile objets such as automobiles, ships and aircraft. This flow has added to diversifying communications Including data and images. While the axed mode is diversifying information media by digitalization of communications network and computers, the mobile mode has brought higher sophistication of communication modes by a higher degree of electric wave utilization. The following descriptions outlines the mobile communication which is utilizing the electric wave phenomena. In sequence the following items are described: a brief history of mobile communications, the technical object and various kinds of services, propagation of electric wave signal.

• 한국가정과학회지
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• 제7권4호
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• pp.71-81
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• 2004

This study was to understand the credit economic society and the frequency of credit use, and to suggest the method of home management in credit economic society. First of all, the consumer education of credit will have to convenience the utilization of consumer education, to supply the information of credit value and a contract thinking, and to develop the variety of media and tools in consumer education.

• 기술사
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• 제31권2호
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• pp.65-72
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• 1998

For the flow facing highly informationized age, there Is a flow from fixed communications connecting fixed places such as offices and homes to mobile communications connecting mobile objets such as automobiles, ships and aircraft. This flow has added to diversifying communications including data and images. While the fixed mode Is diversifying information media by digitalization of communications network and computers, the mobile mode has brought higher sophistication of communication modes by a higher degree of electric wave utilization. The following descriptions outlines the mobile communication which Is utilizing the electric wave phenomena. In sequence the following items are described: a brief history of mobile communications, the technical object and various kinds of services, propagation of electric wave signal.

• 인간식물환경학회지
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• 제24권2호
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• pp.209-218
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• 2021

Background and objective: Instagram, an image-based social media, is being used as an important outlet for the communication and place marketing of public spaces. The purpose of this paper was to analyze how types of place-based content affect user reactions (Likes and Comments) on Instagram in order to provide basic data on the operation and utilization of social media by public places such as botanical gardens and arboretums. Methods: A total of 850 posts uploaded to the Instagram account of Kew Gardens from November 6, 2014 to July 3, 2020 were classified using 14 subject codes. Multiple regression analysis was performed to evaluate the user's reaction between the dependent variables ("Likes", "Comments") and the independent variables (14 subject codes). Results: The findings showed that user reactions appear to differ depending on the typology of the content, and "Likes" and "Comments" were presented in independent behavioral reactions. In particular, "close-ups of plants (botanic, macro)," "plant colony (botanic, wide)," "place-specific landscape (building, landscape)," "anniversary" and "information" showed positive impacts on both "Likes" and "Comments"which could lead to electronic word-of-mouth and content sharing. Conclusion: Based on these findings, it can be argued that the typology of a botanical garden's content can be used to determine factors that affect the immediate reactions and enhance engagement with users.