• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권7호
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• pp.3638-3653
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• 2019

Designing a user interface is important because the user interface determines the level of physical and mental engagement of the user resulting in their level of learning. This paper investigated how physical engagement through a different user interfaces is associated with fun and learning and presented a theoretical physical engagement model called, PEM, developed based on an empirical user study. The PEM model describes how a game user interface is associated with the level of fun and learning, particularly in playing a full body engaged game. There are many different types of games but the Wii Tennis, an embodied interactive game, was chosen as an instance of full body engaged game. A user study with 32 participant's age ranged from 21 to 40 years old revealed that there is a positive correlation between both fun and learning and the level of physical engagement through two different user interfaces. The results of the study showed that the extent of fun and learning are associated with the physical engagement of the player through an interface. As an implication from the study, the result recommend that the level of user engagement is realized by an effective user interface, and the level of physical engagement is determined by the level of authenticity bridged by the user interface.

• Journal of Communications and Networks
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• 제18권4호
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• pp.658-669
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• 2016

The tremendous increase in mobile data traffic coupled with fierce competition in wireless industry brings about spectrum scarcity and bandwidth fragmentation. This inevitably results in asymmetric-valued long term evolution (LTE) spectrum allocation that stems from different timing for twice improvement in capacity between competing operators, given spectrum allocations today. This motivates us to study the economic effects of asymmetric-valued LTE spectrum allocation. In this paper, we formulate the interactions between operators and users as a hierarchical dynamic game framework, where two spiteful operators simultaneously make spectrum acquisition decisions in the upper-level first-price sealed-bid auction game, and dynamic pricing decisions in the lower-level differential game, taking into account user subscription dynamics. Using backward induction, we derive the equilibrium of the entire game under mild conditions. Through analytical and numerical results, we verify our studies by comparing the latest result of LTE spectrum auction in South Korea, which serves as the benchmark of asymmetric-valued LTE spectrum auction designs.

• 통상정보연구
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• 제13권3호
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• pp.511-541
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• 2011

본 연구에서는 앞으로 있을 한 중 FTA협상 추진 전략을 중국의 낮은 수준의 FTA 체결 선(先)제의에 대한 우리나라의 최적 대응전략 측면에서 고찰하였다. 국제협상 분석 게임모델 중 비협조게임의 기본 모형인 죄수의 딜레마 게임을 기본 틀로 하여 Putnam의 2단계 게임 론을 활용하여 결론을 도출하였다. 향후 한 중 FTA 추진의 전략적 기본원칙은 정부가 주장하는 높은 관세양허 수준의 포괄적 FTA보다는 비록 경제적 효과가 다소 떨어지더라도 가능한 빠른 시일 내 '중간 수준'의 FTA(포괄적이나 전반적으로 낮은 관세양허 방안)를 시작하는 정책을 추진함이 바람직 할 것으로 결론지었다. 이러한 관점에서 한 중 양국이 상대국으로부터의 수입액 중 일정 비율, 가령 70-80%에 해당하는 품목에 대해 협상개시와 함께 관세를 내리는 조기수확 프로그램(EHP: Early Harvest Program)을 활용하는 전략도 한 방법이 될 것이다.

• 한국게임학회 논문지
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• 제1권1호
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• pp.31-36
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• 2001

Generally, the internet online game systems are divided into two parts, clients and servers. The clients provide a connection with game server to each user and communicate between them. And, the server controls all clients by the game rules fairly and manages database systems to maintain the user information. In this paper, we propose a configuration method for internet online game servers using distributed scheme. To apply this method, we divide game server into three sub-level parts again. First part of game server is login server to establish the connection between communication server and clients. Second part is communication server to connect between clients and main game server during playing the game. And last part is DBMS that performs database independently. Our proposed scheme suggests that the game server operates very stable because of decreasing of processing load by distributed scheme. So, our proposed server configuration applies to similar online game easily.

• 한국멀티미디어학회논문지
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• 제23권12호
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• pp.1565-1575
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• 2020

This study examines the game balance of the MOBA game genre, which was selected as a model item for the Asian Games. The "bird-eye view" was used for a more efficient representation of 3D modeling. Based on that, statistical analysis was conducted to present appropriate game camera settings and camera balance to match the competitive structure of the MOBA game. A review of the game camera settings reveals that 64° to 70° is the angle that minimizes the difference in vision between the two-player teams the most. Through a one-way ANOVA analysis, we found that the user ranking level and SVB value are closely related. Therefore, the factor of the regression equation using the SVB value must have a user ranking level. As a result of the optimized camera focus analysis of , the camera setting methods were classified into 3 types. For main action games, the recommended camera angle is 64°~66°, and the recommended camera focus is 11.2 mm~19.3 mm. For action and strategy games, the camera angle is 66°~68°, camera focus - 19.3 mm~27.3 mm. And lastly, for the main strategy game, the recommended camera angle is 68°~70°, and the camera focus is 27.3 mm~35.3 mm.

• 디지털콘텐츠학회 논문지
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• 제16권3호
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• pp.493-501
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• 2015

본 연구는 상호작용성이 가장 두드러진 디지털콘텐츠 중 하나인 모바일 게임 이용자 속성과 모바일 게임 이용 행태의 상관관계에 대하여 탐색한다. 게임 이용 행태에 영향을 끼치는 다양한 요인 중 이용자 자체의 속성에 주목하고, 이용자의 개인적, 심리적 속성이 실제 게임 이용에 미치는 영향을 살펴보았다. 이용자 속성은 크게 '대인관계, '게임 숙련도, '혁신 성향, '자아존중감, '경쟁심'의 다섯 가지 요인으로 구분하였으며 게임 이용 행태는 크게 두 가지로 나누어 정량적인 행태인 '이용량(이용시간, 소비비용)'과 정성적인 행태인 '지각된 만족도(지각된 즐거움, 지각된 서비스 품질, 지각된 가격)'로 구분하였다. 연구 결과 대체적으로 본 논문에서 상정한 이용자 속성이 강할수록, 이용량과 지각된 만족도가 증가함을 알 수 있었다. 본 연구는 어떠한 속성을 가진 이용자가 더 많이 게임 콘텐츠를 이용하고, 소비하고, 만족하는가를 살펴봄으로써 기존 디지털 콘텐츠의 이용 행태 및 중(重)이용에 관한 연구에 기여하고자 한다.

• Journal of Life Science
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• 제11권2호
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• pp.135-139
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• 2001

The goal of this study was to find out the effective diet prescription for the exercises. To accomplish this purpose, we investigated the effect of free-fatty acid diet (FFAD) on two groups of the K technical high school soccer players; one group with 7 members for normal diet (NORD) and another group with 7 members for high-fat diet (HFD). HFD group was fed far three days before the game. Results were as follows: i) Blood glucose level was increased with statistical significance in HFD group (P<.01) compared to the NORD group. After plying game, the glucose level was increased in the both groups ii) The contents of free-fatty acid (FFA) was significantly increased in HFD group (P<.0001) compared to the NORD group. After playing game, the FFA level was also increased in both groups iii) The levels of T-C, HDL-C and LDL-C were slightly increased in both NORD and HFD groups after playing game, while the TG level was slightly decreased. However, the differences were not significant. These results imply that HFD may not affect the level of seam lipids. Overall, the level of glucose and FFA were increased, but other types of lpids were not changed. From these studies, we observed the increase in the level of glucose and FFA but not other sew lipid. These results indicate that HFD may induce the body energy-utilizing system during long-lasting exercise such as playing soccer game.

• 한국게임학회 논문지
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• 제17권5호
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• pp.71-80
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• 2017

본 연구는 온라인 게임 플레이어의 유형에 따라 몰입 및 충성도에 어떠한 차이가 나타나는지 분석하였다. 한 주간 이용시간 2시간 이상의 게임 플레이어가 2시간미만 이용자보다 통계적으로 유의하게 몰입도가 높게 나타났으며, 한 주간 3시간 이상 게임을 하는 플레이어는 한 주간 1시간미만 플레이어에 비해 충성도가 높게 나타났다. 6달 이상 게임을 한 플레이어가 6달 미만으로 게임을 한 플레이어보다 통계적으로 몰입도가 높게 나타났으며, 6~9개월 게임을 한 플레이어가 3개월 미만 플레이어보다 충성도가 높게 나타났다. 또한 높은 레벨과 계급을 지니고 있는 게임 플레이어가 낮은 레벨의 게임 플레이어보다 몰입도와 충성도가 높은 것으로 조사되었다.

• 경영과학
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• 제25권2호
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• pp.1-12
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• 2008

In the ultimatum game two players have to divide a certain amount of money between them. One player is the allocator and proposes a division of the money. The other is the recipient and can either accept or reject the proposed division. If the recipient accepts, the money is divided as proposed. If the recipient rejects, however, both players receive nothing. Purchase decisions could be classified on two basic factors (or dimensions) : involvement and think/feel in the FCB grid model. In this study we studied the influences of the two factors in purchase decisions on the choice of strategy (or propensity to fairness) in the ultimatum game. The empirical study showed that a decision maker chooses rational strategy more frequently when he (or she) is thinkful (or cognitive) in high involvement level.

• 한국게임학회 논문지
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• 제14권4호
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• pp.27-36
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• 2014

사용자중심의 게임분석에 대한 과학적인 접근이 주목 받고 있는 게임개발 환경에서 플레이어에 대한 정확한 정보는 중요한 요소로 작용하고 있다. 본 논문에서는 플레이어의 행동과 게임레벨간의 상호작용이 타 장르에 비해 높은 FPS게임에서 주된 레벨디자인 요소인 Choke Point 유형과 Cover Pattern속성의 관계가 레벨난이도에 어떠한 영향을 주는지 살펴보았다. Choke Point는 목표달성을 위해 반드시 통과해야하는 주요 길목이며, Cover Pattern은 건물을 제외한 레벨상의 물체를 말한다. 두 요소는 레벨 난이도에 직 간접적으로 영향을 준다. 대표적인 10종의 FPS게임플레이를 분석하여 Choke Point유형을 분류하고 4종의 Cover Pattern속성을 배치하여 16개의 실험대상 레벨을 구성하였다. 10명 플레이어의 5회 반복플레이를 통해 800개의 플레이어 행동데이터를 수집, 분석하였다. 이러한 실증적 실험을 통한 분석결과는 게임레벨 디자인 단계에 구체적인 정보를 제공함으로써 체계적인 게임레벨 제작에 기여할 것이며 기존 학술적연구결과가 산업적으로 활용될 수 있는 방법을 제안하고 있어 의의를 갖는다.