• Journal of the Korea Computer Graphics Society
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• v.22 no.3
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• pp.31-41
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• 2016

This study proposes suitable input processing technique for producing the mobile platform based virtual reality contents. First of all, we produce the mobile platform based virtual reality interactive contents to be used in experiments for improve user's immersion who experience the virtual reality contents, get interests and design the input processing that easily controllable. Then design the input processing technique in two methods, with gamepad that accessibility to mobile and with directly through user's gaze to interface. Through virtual reality based input processing technique that we proposed, we analyse effect of improve user's immersion, cause of get interests and whether provide the convenience or not for controlling contents through experiments. Moreover we verify whether bring negative psychological elements like sickness, fatigue or not.

• Journal of KIISE
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• v.43 no.8
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• pp.857-868
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• 2016

With changing software industry structure, the emerging concept called Software Ecosystems (SECO) has various challenges that software engineers have to overcome. In market-driven software product development, they should have the capability to offer high value products to their own business and their customers in order to being competitive. Each stakeholder's perspectives and interests should be reconciled in terms of requirements so that engineers can offer high value products through requirements selection. Existing works have just mentioned the need of requirements negotiation between stakeholders without proposing detailed guidelines or practice. In this work, a systematic Requirements Negotiation process is proposed to resolve conflicts of interests of stakeholders in SECO. The interests of stakeholders are analyzed based on goal-based requirements engineering. The rationale of requirements conflict is structured for management. A stepwise requirements negotiation process aims at resolving requirements conflict by applying game theory concepts based on self-interested behaviors of stakeholders.

• Journal of Korea Game Society
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• v.17 no.6
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• pp.19-28
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• 2017

There exist a variety of VR(Virtual Reality) contents that have been developed by the use of the latest VR technologies. Unlike the rapid advances in the recent VR devices however, the development of VR based game contents that fully utilize such cutting-edge devices has been lackluster. Using more accessible form of smartphone-based HMDs(Head-Mounted Displays), we compare two popular VR presentation methods(a realistic 3D VR karaoke room and a 360 degree video karaoke room) and analyze their users' immersion and realistic perception. We expect that our study can be utilized as a supporting guideline for future smartphone-based VR content developments.

• The Journal of Society for e-Business Studies
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• v.26 no.3
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• pp.81-95
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• 2021

This study is to design a security game to proceed in the future based on the results of analyzing 105 research trends on gamification from 2018 to 2021 according to research period, research purpose, research subject, research topic, research method, game method, and emphasis factors. was trying to find an answer to Gamification showed a trend of increasing research related to 2021 due to the increase in the importance of non-face-to-face education in 2020, and there were not many studies targeting middle and high school students, colleges, and adults. Security-related research was a relatively incomplete and limited field, as only a small number of studies on raising awareness were conducted due to access restrictions. In the future, by referring to various research cases and statistics analyzed in this study, we will try to actually implement security education cases through gamification.

• Journal of Digital Convergence
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• v.17 no.7
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• pp.311-316
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• 2019

The mobile game environment is rapidly expanding with AR (augmented reality) technology along with artificial intelligence. In particular, AR (Augmented Reality) technology is a field of VR (Virtual Reality), which is a technology that shows a mixture of virtual information and images in a real environment. Recently, research on mobile UI design based on the interaction based on the augmented reality technology has become important at the point when various utilization methods are suggested based on understanding of contents. There are still some issues in terms of whether the consumer can utilize it in various ways, unlike the developed supply system. In this paper, we present an example of mobile UI design based on interaction based on smart media augmented reality through previous study and literature study of smart augmented reality to solve problem UI issues based on background theory.

• Journal of Digital Contents Society
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• v.19 no.7
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• pp.1225-1235
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• 2018

In this study, as a part of practical and customized smart contents development planning research related to smart fitness contents associated with smart wear that can monitor physical activity, we investigated the potential needs for smart fitness contents through research. As a result, the potential needs for smart fitness contents is 'accessibility to use', 'inducement of interest', 'diverse story line' were derived at the stage of 'before exercise', 'Real - time voice coaching', 'accurate exercise posture monitoring', and 'personalized exercise prescription' were derived at the stage of 'during exercise'. At the stage of 'after exercise', 'substantial reward system', 'grading system', 'body figure change monitoring' and 'everyday life monitoring' were derived. At the stage of 'connection to the next exercise', 'triggering exercise motivation', 'high sustainability' wear derived.

• Communications of Mathematical Education
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• v.36 no.3
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• pp.439-467
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• 2022

The future society requires not only knowledge but also various competencies, including creativity, cooperative spirit and integrated thinking. This research develops a program for integrating mathematics and information science to enhance important mathematical competencies such as problem-solving and communication. This program does not require much prior knowledge, can be motivated using everyday language and easy-to-access tools, and is based on creative problem-solving activities with multilateral cooperation. The usefulness and rigor of mathematics are emphasized as the number of participants increases in the activities, and theoretical principles stem from the matrix theory over finite fields. Moreover, the activity highlights a connection with error-correcting codes, an important topic in information science. We expect that the real-world contexts of this program contribute to enhancing mathematical communication competence and providing an opportunity to experience the values of mathematics and that this program to be accessible to teachers since coding is not included.

• Korean Journal of Social Welfare
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• v.57 no.3
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• pp.195-222
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• 2005

This study was a comparative analysis by youth's internet addiction types. Distribution of internet addiction types, relative influence of risk and protective factors in each addiction type, and common and different risk and protective factors among the internet addiction types were investigated. And, the level of youth's mental health and the effect of internet to youth's mental health were identified. A total of 1,830 youth were surveyed, and the findings were as below: Firstly, 62.3% of the surveyed youth were addicted to internet. In detail, 15.9% had internet game addiction and 10.9% had internet sex addiction. Secondly, in all types of internet addiction, the risk factors gave severer influence than the protective factors did, and the protective factors gave compensation effect to each type of addiction. Thirdly, among the internet addiction types, the common risk factors were depression, aggression, parents' control, and friends' influence, while the protective factor was self control. Among the internet addiction types, a different risk factor was PC access, and the different protective factors included self-efficacy, teacher's support, friend's support, and parents' relationship. Fourthly, in all the three addiction pattern, the addicted adolescents had experienced more psychological symptoms than general internet users had. Finally, in the aspects of psychiatric symptoms, sex addiction gave the worst negative effect, and then game addiction, and internet addiction came in order. And the adolescents who had the higher degree of addiction were more likely to experience psychiatric symptoms.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.25 no.6
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• pp.1465-1475
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• 2015

Cheating detection models in the online games can be divided into two parts. The one is on client based model, which is designed to detect malicious programs not to be run while playing the games. The other one is server based model, which distinguishes the difference between benign users and cheaters by the server log analysis. The client based model provides various features to prevent games from cheating, For instance, Anti-reversing, memory manipulation and so on. However, being deployed and operated on the client side is a huge weak point as cheaters can analyze and bypass the detection features. That Is why the server based model is an emerging way to detect cheating users in online games. But the simple log data such as FPS's one can be hard to find validate difference between two of them. In this paper, In order to compensate for the disadvantages of the two detection model above, We use the existing game security solution log as well as the server one to bring high performance as well as detection ratio compared to the existing detection models in the market.

• Journal of Korea Game Society
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• v.10 no.4
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• pp.23-34
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• 2010

The current interests in e-sports is being extended to the fields of education these days. Professional game players, so called as 'Pro-Gamers', therefore, should be recognized as human resource for education, and the theoretical foundation for them needs to be established. This study examines informal learning styles, motivation, and interactions among professional game players in South Korea. The aim of this grounded theory study is to discover the trajectory of professional game players' experiences and explain what properties and interactions they are facing depending on the stage of the trajectory. This study conceptualizes educational meaning within and across the society of StarCraft Pro-Gamers, providing suggestions for the management of human resource using models constructed. Data was analyzed by interviewing 1 consultant, 2 directors and 9 Pro-Gamers. By analyzing the data, this study explored what learning strategies Pro-Gamers construct and apply in their trajectory as Pro-Gamers. It includes how they organize learning, how they formulate their motivation and goals, how they cooperate and compete, what curricula they adapt, how they become one of the ace players overcoming their slump, and how informal education works in practice in the interaction among members of a StarCraft Pro-Gamer team. Finally, in this paper the stage theory was presented. It is argued that when the stage of the players shifts (Stage Shifting). It also brings changes to proficiency properties, emotional properties, interactional properties and educational properties related to each stage. Stages are categorized by five levels: Enjoying, Struggling, Achieving, Slumping, and Recovering. Although each stage has its own properties, the stages are grouped by two main properties, one of which is a Communicative Stage and the other is a Practicing Stage.