• Journal of Korea Society of Digital Industry and Information Management
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• v.18 no.3
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• pp.9-23
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• 2022

This study aims to examine research trends on the Internet of Things and smart city based on papers from the United States, Japan, and Korea. We collected 7113 papers related to the Internet of Things and smart city published from 2016 to 2021 in Elsevier's Scopus. Keyword frequency and centrality analysis were performed based on the abstracts of the collected papers. We found keywords with high frequency of appearance by calculating keyword frequency and identified central research keywords through the centrality analysis by country. As a result of the analysis, research on security, machine learning, and edge computing related to the Internet of Things and smart city were the most central and highly mediating research conducted in each country. As an implication, studies related to deep learning, cybersecurity, and edge computing in Korea have lower degree centrality and betweenness centrality compared to the United States and Japan. To solve the problem it is necessary to combine these studies with various fields. The future research direction is to analyze research trends on the Internet of Things and smart city in various regions such as Europe and China.

• The Journal of the Korea Contents Association
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• v.6 no.12
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• pp.155-162
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• 2006

It was well known that how much seriously the Internet worm such as the Code Red had an effect on our daily activities. Recently the rapid growth of the Internet speed will produce more swift damage us in a short term period. In order to defend against future worm, we need to understand the propagation pattern during the lifetime of worms. In this paper, we analyze the propagation pattern of the Code Red worm by a computer simulation. In particular, we show that an existing simulation result about the number of infectious hosts does not match the observed data, and then we introduce a factor of revised human countermeasures into the simulation. We also show the simulation results presenting the importance of patching and pre-patching of the Internet worm.

• Journal of Technology Innovation
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• v.12 no.1
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• pp.189-218
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• 2004

In this paper, we estimate consumers' preferences for the key attributes of the future mobile telecommunication terminal using conjoint analysis. For statistical model, we estimate the mixed legit model which can reflect the heterogeneity of consumers' preferences, using the Bayesian approach with Gibbs sampling. The results show that there are large variations in consumers' preferences for the attributes of the future mobile telecommunication terminal, which justifies our using of mixed logit model. Also, the results show that most consumers prefer the medium size display and keyboard as input equipment. Additionally, far from general prediction, the results show that many consumers are indifferent to whether the future mobile telecommunication terminal is able to provide high quality internet service or not, and to operate many application programs and programs originally designed for PC. From those results, we can obtain some important implications for the R＆D strategies. Additionally, the results on the heterogeneity of consumers' preferences reveal that it is possible that the complete device convergence may not happen.

• Journal of Fashion Business
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• v.8 no.6
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• pp.123-136
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• 2004

The purpose of this the end of 20th century fashion about various phenomenon of distopia. This study have the analysis and consideration through the elements and peculiarity of distopia. This study give us the various figures of distopia st fashion as well as the common features of distopia. The study method refers to sundry records, thesis, fashion magazine, publication, the collection works and internet. It is as follows. 'Distopia' prefix to dis of Utopia and means unknown future. Distopia trends towards future negatively. The end of 20th century, it is well brought out various cultures. Movie, novel and pop culture have effect on end of the 20th fashion with a view of distopia. It is the fear and uncertainty of the future. The characters of distopia through the works are divided into formative characteristics and aesthetics meaning. The future fashion of distopia expression mixed and various cultural life, also the mixed of utopia and distopia fashion. Distopia stimulates the designers to the new expression and expose their new areas.

• Journal of the Korea Society of Computer and Information
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• v.17 no.3
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• pp.157-165
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• 2012

The purpose of this study is to treat the students addicted to the internet by implementing a program using computers. In order to accomplish the purpose, the program was created by combining the game making activities using scratch programming, self-examination activities, and future occupation search activities. This treatment program will have major positive effects on the students who are addicted to the internet. First, it will be effective for reducing the time for using the internet and it will also improve the addictiveness such as being immersed in playing games. Second, there will be a change in attitude toward the internet and an improvement in intellectual capacity of the students. They will realize the fun of making and sharing the programs with friends, and their thinking skills will be improved by getting training for algorithmic and creative thinking. Third, this treatment program will have positive effects on the students' affective domain. They will have deeper and wider perspective on occupation by searching their future occupation, and discover the meta-ego through self-examination., which in turn, help them gain confidence and feel a sense of accomplishment.

• Journal of the Korean Data and Information Science Society
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• v.28 no.2
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• pp.261-270
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• 2017

This research aims to investigate how healthcare professionals can control their behaviors in the internet and the status of their Internet addiction, thus emphasizing appropriate internet ethics awareness of students majoring in healthcare-related field, the future healthcare professionals. The goal of this research is to verify the mediating effect of self-control between the status of internet addiction of healthcare-related college students and their internet ethical awareness. A questionnaire survey was conducted on 236 students majoring in healthcare-related fields in 5 universities located in D city from March to April, 2016. The result of analyzing correlation of Internet addiction, internet ethics awareness, and self-control shows that self-control is negatively correlated with internet addiction but positively correlated with internet ethics awareness. The result of research suggests that self-control does have partial mediation effect on internet addiction and internet ethical awareness. Accordingly, it is necessary to develop mediator program that enhances self-control in order to improve internet ethical awareness of healthcare-related college students and develops measures to prevent addition to the internet, one of the primary cause of decline in internet ethics awareness.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.17 no.6
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• pp.169-179
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• 2017

The objective of this study is to identify the influence of utilization of SNS among consumers who watch performance art on their behavioral intention in the future when there has been an increasing usage of SNS among consumers along with an increasing importance of SNS in the field of performance art and also the influence of SNS characteristics on behavioral intention of performance art consumers in the future according to their preferred genres. According to the results of empirical analysis in this study, usefulness, pleasure, and social influence, as SNS characteristics, turned out to positively influence on behavioral intention in the future. According to the result of analysis in difference of influence on behavioral intention in the future depending on preferred performance art genre, usefulness, pleasure, and availability in order among SNS characteristics turned out to influence on behavioral intention in the future in pop-music/entertainment concert. In addition, only usefulness turned out to influence on behavioral intention in the musical. Usefulness and availability in order turned out to influence on behavioral intention in the act. Lastly, only usefulness turned out to influence on behavioral intention in the music/ballet. According to aforementioned results of the study, it implies that SNS characteristics of performance art audiences are influencing on behavioral intention in the future. In addition, since there is a difference in behavioral intention in the future among art consumers in each genre, it is required to differentiate utilization and strategies of SNS in each genre.

• Journal of Contemporary Eastern Asia
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• v.11 no.2
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• pp.13-25
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• 2012

In the wake of the Arab Spring, the Internet's role in aiding dramatic political transformation has come to the fore. Throughout the Middle East, protestors have employed Facebook, Twitter, Youtube and other popular websites to organize and spread news at home and to the outside world. Chinese authorities have been increasingly nervous about the Arab uprisings, and fear that similar events will inspire unrest in China. The new information and communication technologies make it possible for social movements to initiate novel forms of collective actions. The Internet provides new opportunities for political liberalization. In Chinese society, citizens can now participate in politics uninvited. With each passing day, the online community gets stronger. The digital revolution has the potential for broadening democratic principles and could bring democracy to the collective Chinese mind.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.11 no.3
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• pp.123-126
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• 2011

As the number of users of smart phone and smart pad are increasing, the deployment of WiFi APs has been accelerated. Also Internet local broadcasting service will be activated near future. But transmission error is the critical problem, due to the one-way transmission of the data to the receivers. In this paper, FER is analysed according to BER and frame length, and repetitive transmission technique is proposed to reduce the effective FER.

• Architectural research
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• v.7 no.2
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• pp.23-33
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• 2005

The use of computers in architectural professions has grown with the power of easy data management, increased sophistication of standalone applications, inexpensive hardware, improved speed of processing, use of standard library and tools for communication and collaboration. Recently, there has been a growing interest in distributed CAAD (Computer-Aided Architectural Design) integration due to the needs of direct collaboration among project participants in different locations, and Internet is becoming the optimal tool for collaboration among participants in architectural design and construction projects. The aim of this research is to provide a new paradigm for a CAAD system by combining research on integrated CAAD applications with recent collaboration technologies. To accomplish this research objective, interactive three-dimensional (3D) design tools and applications running on the Web have been developed for an Internet-based distributed CAAD application system, specifically designed to meet the requirements of the architectural design process. To this end, two different scopes of implementation are evaluated: first, global architecture and the functionality of a distributed CAAD system; and, second, the association of an architectural application to the system.