• The Journal of the Korea Contents Association
• /
• v.16 no.11
• /
• pp.223-239
• /
• 2016

We study online gaming regulations and examine the reactance and attitude of the targeted group. To be specific, we focus on the 'Shutdown Law' due to its scope and magnitude of its influence. The Shutdown Law was enforced to prevent adolescence's immersion in or addiction to online gaming; however, its effectiveness has yet to reach a consensus. Our empirical findings show that the reactance to the regulation is stronger as game usage increases; surprisingly the effect of game usage on reactance weakens among the affected adolescence's group, compared to the adult counterpart. Furthermore, heavy users in the targeted group are more likely to play online gaming to mingle with their peers, and thus more likely to play other activities that friends participate in. These results suggest that online games play a role to cultivate peer-culture among adolescence and facilitate their communication.

• Journal of Internet Computing and Services
• /
• v.11 no.5
• /
• pp.105-117
• /
• 2010

In recent years, dynamic collaboration (DC) among cloud providers (CPs) is becoming an inevitable approach for the widely use of cloud computing and to realize the greatest value of it. In our previous paper, we proposed a combinatorial auction (CA) based cloud market model called CACM that enables a DC platform among different CPs. The CACM model allows any CP to dynamically collaborate with suitable partner CPs to form a group before joining an auction and thus addresses the issue of conflicts minimization that may occur when negotiating among providers. But how to determine optimal group bidding prices, how to obtain the stability condition of the group and how to distribute the winning prices/profits among the group members in the CACM model have not been studied thoroughly. In this paper, we propose to formulate the above problems of cooperative negotiation in the CACM model as a bankruptcy game which is a special type of N-person cooperative game. The stability of the group is analyzed by using the concept of the core and the amount of allocationsto each member of the group is obtained by using Shapley value. Numerical results are presented to demonstrate the behaviors of the proposed approaches.

• Journal of the Korean Data and Information Science Society
• /
• v.26 no.3
• /
• pp.619-630
• /
• 2015

The purpose of this study is to provide basic information to develop a game strategy plan of a team in a future by identifying the patterns of attack and pass of national men's professional volleyball teams and extracting core key words related with volleyball game performance to evaluate game performance using 'social network analysis' and 'text mining'. As for the analysis result of 'social network analysis' with the whole data, group '0' (6 players) and group '1' (11 players) were partitioned. A point of view the degree centrality and betweenness centrality in 'social network analysis' results, we can know that the group '1' more active game performance than the group '0'. The significant result for two group (win and loss) obtained by 'text mining' according to two groups ('0' and '1') obtained by 'social network analysis' showed significant difference (p-value: 0.001). As for clustering of each network, group '0' had the tendency to score points through set player D and E. In group '1', the player K had the tendency to fail if he attack through 'dig'; players C and D have a good performance through 'set' play.

• Physical Therapy Korea
• /
• v.26 no.3
• /
• pp.57-66
• /
• 2019

Background: Visual and somatosensory integration processing is needed to reduce pusher behavior (PB) and improve postural control in hemiplegic patients with acute stroke. Objects: This study aimed to investigate the effects of game-based postural vertical training (GPVT) on PB, postural control, and activity daily living (ADL) in acute stroke patients. Methods: Fourteen participants with acute stroke (<2 months post-stroke) who had PB according to the Burke lateropulsion scale (BLS) (score>2) were randomly divided into the GPVT group ($n_1=7$) and conventional postural vertical training (CPVT) group ($n_2=7$). The GPVT group performed game-based postural vertical training using a whole-body tilt apparatus. while the CPVT group performed conventional postural vertical training to reduce PB (30 minutes/session, 2 times/day, 5 days/week for 3 consecutive weeks). The BLS was evaluated to assess the severity of PB. And each subject's postural control ability and ADL level were assessed using the postural assessment scale for stroke (PASS), balance posture ratio (BPR), and Korean-modified Barthel index (K-MBI). Outcomes were measured pre- and post-intervention. Results: Comparison of the pre- and post-intervention assessment results showed that both interventions led to the following significant changes: decreased severity of PB scores and increased PASS, BPR, and K-MBI scores (p<.05). In particular, statistical analysis between the two groups, the BLS score was significantly decreased in the GPVT group (p<.05). And PASS, BPR, and K-MBI scores were significantly improved in the GPVT group than in the CPVT group (p<.01, respectively). Conclusion: This study demonstrated that GPVT lessened PB severity and improved postural control ability and ADL levels in acute stroke patients.

• Korean Journal of Health Education and Promotion
• /
• v.26 no.3
• /
• pp.63-74
• /
• 2009

This study was aimed to assess the degree of addiction on computer games and find factors related to game addiction, health perception and health promoting behavior in elementary school students. A study subjects were 814 students in 5th and 6th grades at 4 elementary schools in a city and a county. The items in questionnaire was consisted of general characteristics, circumstances and habits related to utilization of computer and internet game playing, and degree of addiction, health perception and health promoting behavior. We analyzed data using chi-square test, t-test, ANOVA, and multiple regression analysis. In multiple regression analysis, addictiveness on internet game was significantly related to type of computer utilization, frequency and duration of internet game playing, gender, after-school activities, grade points, economical status, and location of computer in a house. Health perception was significantly related to addiction points, gender, residential area, and grade points. And health promoting behavior was significantly related to addiction points, grade level, grade points, and health perception points. Since health promoting behaviors of children in elementary school are in the way of making, their degree of addiction to computer games can greatly influence their attitude towards health and their future life pattern as adults. Therefore an educational prevention program including counselling on game addiction should be devised. And researches will be needed for developing the Korean standard for measuring degree of addiction and a prevention program for peer group's game addiction.

• Journal of the Institute of Electronics Engineers of Korea CI
• /
• v.42 no.3 s.303
• /
• pp.17-28
• /
• 2005

Recently intelligent characters in computer games have been an important element more and more because they continually stimulate gamers' interests. As a typical method for implementing such intelligent characters, neural networks have been used for training action patterns of opponent's characters and game rules. However, some of the game rules can be abruptly changed and action properties of garners in on-line game environments are quite different according to gamers. In this paper, we address how a neural network adapts to those environmental changes. Our adaptation solution includes two components: an individual adaptation mechanism and a group adaptation mechanism. With the individual adaptation algorithm, an intelligent character steadily checks its game score, assesses the environmental change with taking into consideration of the lastly earned scores, and initiates a new learning process when a change is detected. In multi-user games, including massively multiple on-line games, intelligent characters confront diverse opponents that have various action patterns and strategies depending on the gamers controlling the opponents. The group adaptation algorithm controls the birth of intelligent characters to conserve an equilibrium state of a game world by using a genetic algorithm. To show the performance of the proposed schemes, we implement a simple fighting action game and experiment on it with changing game rules and opponent characters' action patterns. The experimental results show that the proposed algorithms are able to make intelligent characters adapt themselves to the change.

• Journal of Korea Game Society
• /
• v.15 no.6
• /
• pp.149-156
• /
• 2015

In this research, the effect of serious game on the task performance of adolescents with intellectual disabilities was investigated. A total of 31 students participated in a pre-post-with-control-group-design study. Results indicate that among the high-, moderate-, and low- ability students, the moderate-ability students gained the most from the game, in both speed and accuracy. From the results we can understand that game-based training has the most effect on the moderate level students. Also, the findings of this study show that serious games can be effective training tools for this population.

• 한국HCI학회:학술대회논문집
• /
• 2009.02a
• /
• pp.1265-1271
• /
• 2009

'I-Ching Storytelling Web-Cartoon Game' suggested by Prof. Shim and Research Group may provide users with the opportunity of writing story based on I-Ching. I-Ching is the cosmological thoughts intrinsic to East Asian culture. In the perspective of the narratology, I-Ching can bee seen as a kind of database of narratives since it classifies all events emerging from the meet between the actor(human-人) and the background(time/space-天地) as the story material into 384 narrative elements(sequence) and 64 themes(motive), and consistently constructs their causal relationships. So while trying to articulate I-ching with the digital storytelling methodology, we developed the web-cartoon game. With this game, users can creatively make their own story as a play by freely interpreting, retrieving, and recomposing those 386 narrative elements and 64 themes with the I-ching's narrative guideline.

• Journal of the Korean Home Economics Association
• /
• v.50 no.5
• /
• pp.125-138
• /
• 2012

The purpose of this study was to analyze the research literature on play therapy intervention for children with ADHD. Thirty-nine studies, conducted from 1995 to 2010, were analyzed. The results of the literature review are as follows: The most commonly studied subjects were elementary school children in grades 1-3. The most common subject selection method was to select ADHD tendency children. The most typical intervention setting used was a counseling center. The most frequent intervention was 11-15 sessions of group counseling. Pre-post experimental-control research designs were the most commonly used. In the analyzed studies, play therapy-game play therapy, CBPT, CCPT, sand play therapy, and theraplay- was used for ADHD children. The studies found that game play therapy and cognitive-behavior play therapy are effective for improving ADHD children's attention, impulsiveness, and self-control. The major game play therapy activities used were dart games, "Simon says" games, fishing games, dominoes, Jenga, Beat the Clock, the board game "Stop," and "Ice, break., ice, break." Based on these findings, this article presents implications and discussion for play therapy intervention for ADHD children.

• The Journal of the Korea Contents Association
• /
• v.8 no.2
• /
• pp.125-131
• /
• 2008

When developing MMORPG targeting pre-teenagers, developer has to consider the users' psychology and physiology characteristics. In the product of endless decision making in the game play, pre-teenagers make improvised choice and make intuitional decision. Therefore, based on users understanding, the Alpha version of online game has been shown and examined its usability through FGI. In conclusion, the game interface integrating with story-telling based leads the users more into the game. Also, it is more important to post in game screen layout by importance of the information or frequency in using In addition, it is inspected that when users control the interface mentioned above, the response had to be quick and precise.