• Journal of the Korea Institute of Information Security & Cryptology
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• v.22 no.2
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• pp.225-238
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• 2012

Among the various security threats in online games, the use of game bots is the most serious problem. In this paper, we propose a framework for user behavior analysis for bot detection in online games. Specifically, we focus on party play that reflects the social activities of gamers: In a Massively Multi-user Online Role Playing Game (MMORPG), party play log includes a distinguished information that can classify game users under normal-user and abnormal-user. That is because the bot users' main activities target on the acquisition of cyber assets. Through a statistical analysis of user behaviors in game activity logs, we establish the threshold levels of the activities that allow us to identify game bots. Also, we build a knowledge base of detection rules based on this statistical analysis. We apply these rule reasoner to the sixth most popular online game in the world. As a result, we can detect game bot users with a high accuracy rate of 95.92%.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.6
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• pp.366-373
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• 2020

This study explored the factors associated with dependence among smartphone-dependent adults in their 20s. The data was derived from the 2017 survey on smartphone over-dependence conducted by the Ministry of Science and ICT and the National Information Society Agency. The participants were 879 adults in their 20s. The data was analyzed by frequencies, percentages, means, standard deviations, independent t-tests, Pearson's correlation coefficients, and multiple regression analysis. The results revealed instant messengers as the most used application by participants. Participants in the high risk category of dependence also used SNS (Social Networking Services), music, and games more than those in the potential risk category. The more serious the dependence, the greater the frequency of smartphone use (β=.16, p=.000), and use of games (β=.10, p=.028), webtoons (β=.14, p=.004), SNS (β=.09, p=.047), and financial transactions (β=.17, p=.000). They did not recognize their smartphone dependence when it was relatively low. However, when this became serious, they then realized that they depended on the smartphone more than others. That means that it is not easy for adults to recognize their smartphone dependence on their own. However, recognition of the problem is the first step for adults to solve their problems. A program that evaluates their problematic smartphone use should be installed and used on all smartphones.

• Journal of Korea Game Society
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• v.15 no.6
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• pp.29-40
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• 2015

Education of 'Law and Order' is necessary in our recent society. However it is so difficult subject for students in the elementary schools to be learned efficiently. In this research, we have studied how to utilize the game as an educational contents with good effects of the game. And we have designed a game in which children could experience various situations where they had to make decisions based on proper law and order. Parents were also encouraged to participate and play along the game with role balances as mentors to their children. The effectiveness was tested with experience of the developed prototype game and questions. Through the study we expect and hope to use games as effective learning tools for children in the future.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.10
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• pp.3700-3706
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• 2010

As the number of the elderly increases, concerns about senile dementia and serious game for dementia are growing. The purpose of this study is to explore the types of attitude toward senile dementia. To identify public attitudes toward senile dementia, we conducted Q methodology. A Q set of potential public attitudes toward senile dementia was identified through literature review. From this, 52 potential public attitudes toward senile dementia were identified. Twenty subjects ranked these explanations as possible public attitudes. The attitudes toward senile dementia were classified as 4 types : 'type1 : idealistic & expectant', 'type 2 : aversive & defensive', 'type 3 : active & realistic', and 'type 4 : responsible & compensatory'. This study revealed that people have different explanatory frameworks for the attitude toward senile dementia.

• Journal of Korea Game Society
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• v.13 no.3
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• pp.95-104
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• 2013

We have developed a serious game for the elderly named 'Paldokangsan 2' in 2012 as a next version of 'Paldokangsan 1'. 'Paldokangsan 1' was a walking game for two people using controllers of armrests and footboards with PC. 'Paldokangsan 2' had additional purpose to assist cognitive, physical, and psychological functions of the elderly. Especially, walking activity was implemented in a way that a player walks around the old traditional market place in 1970's while remembering and choosing healthy food to buy. We also developed two mini games for the elderly and people with functional disability with the similar purpose as 'Paldokangsan2'. 219 older adults (age$$\geq_-$$ 65) recruited from Asan city community center participated in the study. The result showed that the game play exerted positive effects on memory, concentration and vitality of the elderly.

• Journal of Arbitration Studies
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• v.19 no.2
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• pp.229-243
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• 2009

The content industries environment has been undergoing significant changes due to rapid technological innovation and content market expansion. Interest in the industry is growing fast both in Asia and Europe. However, in Japan content industries are showing almost zero growth with no increase in overseas expansion. Until now, Japanese content industries have been able to grow based on domestic demands. Many different factors contributed to today's zero growth in Japanese content industries. Two main reasons are: 1) Their lack of interest in overseas expansion and 2) Insufficient investment in domestic human resources development. Considerable amounts of Japanese contents including films, music, games, and animations have been distributed in many Asian countries and today piracy problems in the region are at a serious level. According to 2004 records pirated editions accounted for 85%, 16%, 19%, and 36% in China, Korea, Hong Kong, and Taiwan respectively. Pirated editions bring economic losses to Japanese copyright profits. Making it worse, they weaken the motivation to create content and make it hard to activate cultural exchanges. Losses from copyright violations in Japanese content industries are expected to keep increasing in the future. In order to make Japan competitive and grow it is crucial to take proper measures to protect copyright infringements. This study considers the current situation of the Japanese content market, infringement issues in content which is causing many problems in Asian countries, including China, and facts about losses caused by this problem.

• Journal of Korea Game Society
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• v.13 no.6
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• pp.85-94
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• 2013

Repackaging of mobile games is serious problem in the Android environment. In this paper, we propose a repackaging detection technique using shortened instruction sequence. By using shortened instruction sequence, the proposed technique can be applicable to a mobile device and can block repackaged apps coming from various sources. In the experiment, our technique showed high accuracy of repackaging detection.

• Journal of Korea Game Society
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• v.19 no.5
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• pp.151-164
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• 2019

In this study, we developed a visual novel game as one of the donation campaign strategies. In study 1, we developed a visual novel game for the elderly who live alone. In study 2, we also examine how game affects personal distress and empathic concern, the emotions that trigger help behavior. The results showed that game can promote both emotions effectively. Moreover, empathic concern completely mediated between game and donation intention. This result suggests that visual novel games can be an effective tool for stimulating user's altruistic motivation to do donation behavior.

• Journal of Korea Multimedia Society
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• v.22 no.6
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• pp.695-705
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• 2019

The level of psychological damage caused by verbal abuse among cyberbully victims is very serious. It is going to introduce a system that determines the level of sanctions against chatting in real time using the automatic prohibited words filtering based on artificial neural network. In this paper, we propose a keyword filtering method that detects the modified prohibited words and determines whether the corresponding chat should be sanctioned in real time, and a real-time chatting screening system using it. The accuracy of filtering through machine learning was improved by processing data in advance through coding techniques that express consonants and vowels of similar pronunciation at close distances. After comparing and analyzing Mahalanobis-based clustering algorithms and artificial neural network-based algorithms, algorithms that utilize artificial neural networks showed high performance. If it is applied to Internet chatting, comments or online games, it is expected that it will be able to filter more effectively than the existing filtering method and that this will ease communication inconvenience due to existing indiscriminate filtering methods.

• Journal of Korea Game Society
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• v.19 no.1
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• pp.121-134
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• 2019

This article examines technological innovation's impact on the game production field and on the developers' subjectivity and labor. It focuses on the appearance of the new stage of digitalization via mobile devices during the period when the leading sector of game industry rapidly shifted to Mobile games. Though the in-depth interview with the game developers, this article explores the changes in organizational and management approaches and in the developers' experience and perception of their labor. Given the serious shortage of the related literature, I believe this analysis could provide a new perspective in understanding the gameswork of specific time and location.