• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 1998.03a
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• pp.85-88
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• 1998

진화이론은 생명체들간의 투쟁과 적자생존의 원칙에 근거를 두고 있다. 그 중 협동으로의 진화는 공생이나 기생관계에 있는 생물들에서 발견되어 사화학, 생물학, 경제학 등의 분야에서 계속적인 관심의 대항이 되어 왔다. 특히 생명체들간에 존재하는 끊임없는 경쟁과 협동의 관계를 시뮬레이션하는 죄수의 딜레마 게임은 지금까지 많은 연구가 진행되어왔다. 죄수의 딜레마 게임이 시작된 근거는 협동으로의 진화에 관한 연구에서 시작되었다고 볼 수 있다. 대부분의 연구가 2명이 하는 죄수의 딜레마 반복게임인 2IPD에 집중되어 있는데 2IPD는 실제 세계에 적용시키는데 한계가 있기 때문에 보다 실세계에 가까운 형태를 모델링하는 N명 죄수의 딜레마 반복 게임(NIPD)에 관한 연구가 진행되고 있다. 이 논문에서는 진화 알고리즘을 이용하여 NIPD게임에서 게임자의 수와 협동으로의 진화와의 관계, 즉 죄수의 수가 증가함에 따라 협동의 정도는 어떻게 나타나는 가에 대해 고찰한다. 여러차례의 반복 시뮬레이션 결과 게임자의 수가 적을때는 대부분이 협동으로 진화하나 게임자의 수가 증가할수록 협동으로의 진화가 어렵다는 사실을 확인할 수 있었다.

• Journal of Game and Entertainment
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• v.2 no.3
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• pp.8-14
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• 2006

The social interest for collaborative learning and educational game has been increased. In this paper, we investigates the educational value of collaborative learning and game. Based on this investigation, we propose an educational on-line game model for collaborative learning. Although the proposed model is still conceptual design, it sufficiently shows that on-line RPG game can be a good collaborative learning method for young children. In detail, we speculate about the conventional educational method performed in normal school. And then, we describes the elements of a computer game which complies with the real collaborative learning program.

• Journal of Korea Society of Industrial Information Systems
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• v.12 no.1
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• pp.72-79
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• 2007

This paper will analysis the Jam-O-Drum developed for collaborative musical experience at first. And we suggest the multi-user interactive game system Kom-O-Drum(Korean Jam-O-Drum) as a Serious Game Platform By combining velocity, direction and touch sensitive input devices like a korea traditional drum "Jang Go" and computer graphics imagery into an LCD or PDP display up to four simultaneous players are able to participate in a collaborative approach to game's mission. Also we introduce the design of detail input device and application fields of Kom-O-Drum for Serious Game.

• Proceedings of the Korean Information Science Society Conference
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• 1998.10c
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• pp.48-50
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• 1998

반복적 죄수의 딜레마(Iterated Prisoner's Dilemma, IPD)게임은 사회적, 경제적, 그리고 생물학적 시스템에서 협동의 진화를 연구하기 위한 대상으로 사용되어져 왔다. 이제까지 이기적이며 합리적인 개체들 사이에서의 협동의 진화에 대한 완전한 이해를 위하여 게임자의 수와 협동의 관계, 기계학습의 일환으로서의 전략학습, 그리고 이득함수가 협동에 미치는 영향 등에 관한 많은 연구가 이루어져 왔다. 이 논문에서는 실험을 통해 이득함수에 따른 협동연합의 크기와 지역화가 NIPD(N-player IPD)게임에서 협동의 진화에 미치는 영향에 대해 밝히고자 한다. 시뮬레이션 결과 이득함수와 협동연합의 크기에 대한 실험에서는 협동개체에 대한 이득함수의 기울기가 배반개체에 대한 이득함수의 기울기보다 급하거나 최소 연합의 크기가 작을수록 협동연합의 정도가 높게 나타남을 알 수 있었다. 그리고 지역화 실험에서는 상호작용하는 이웃의 크기가 작을수록 협동연합의 크기가 크게 진화됨을 알 수 있었다.

• The Journal of the Korea Contents Association
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• v.8 no.10
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• pp.381-390
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• 2008

As computer technology is in progress and many educational methods have been emerged, web-based cooperative learning and educational games have gained a lot of interests. Some cooperative learning systems and game-based educational systems have been suggested, but few cooperative learning systems use games. This paper builds a new web-based cooperative learning system using games that enables learners to actively participate and have high interests in learning. In our system, cooperation study is performed in each group and a group member competes with other group members using games. A crossword puzzle game is adopted because of ease to use and fit with cooperative learning scenarios. Our suggested system is implemented and used by two classes of high school students to evaluate this system. The experimental results show that our system effectively improve students' learning interests and increase their academic achievement.

• Journal of Korea Game Society
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• v.15 no.5
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• pp.153-162
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• 2015

This study explores the social sides of games by investigating the relationship between cooperative games and psychological factors determining social relationships (i.e., self-disclosure, intimacy) and how such psycosocial factors influence offline social participations. Utilizing both online and offline surveys, the results indicated that the amount of time spending on cooperative games have a positive impact on self-disclosure and intimacy. The results also showed that users' self-disclosure and intimacy influence offline social participation.

• Journal of Korea Game Society
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• v.10 no.3
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• pp.3-13
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• 2010

This study suggests about industrial-educational cooperation model through a case study by practical training by industrial-educational cooperation. Practical training of game development process is organized as industrial-educational cooperation pipe-line to represent whole process model, and step-cases about this are described. The purpose of this study is for learners to experience practical industry development process in a direct or indirect way. And above all, educators role in each stages of development is also important. This study would be used as a reference data about practical training and studies related with industrial-educational cooperation.

• Proceedings of the Korea Contents Association Conference
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• 2006.05a
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• pp.215-219
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• 2006

This paper will analysis the Jam-O-Drum developed for collaborative musical experience at first. And we suggest the multi-user interactive game system Kom-O-Drum(Korean Jam-O-Drum). By combining velocity sensitive input devices like a korean drum "Jang Go" and computer graphics imagery into an LCD or PDP display, up to four simultaneous players are able to participate in a collaborative approach to game's mission. Also we introduce the input device specifications and application fields of Kom-O-Drum.

• Information and Communications Magazine
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• v.26 no.7
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• pp.24-29
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• 2009

협동적 게임 이론(cooperative game theory)은 다중 사용자들이 어떻게 하면 한정된 자원을 효율적이고 공평하게 공유할 수 있는지에 촛점을 맞추며 이론적인 바탕을 제공한다. 본고에서는 다수의 멀티미디어 사용자들이 협동적 게임 이론중 협상 해법(bargaining solutions)을 이용하여 어떻게 통신 및 네트워크 자원을 효율적이고 공평하게 공유할 수 있는지 알아본다. 또한, 이러한 협상 해법들을 바탕으로 한 자원 공유가 멀티미디어 사용자에게 어떠한 의미를 갖는지 알아보도록 한다. 마지막으로, 이러한 게임 이론을 이용한 자원 관리가 다양한 형태의 통신 및 네트워크에 어떻게 사용될 수 있으며, 미래의 활용 가능성을 알아보도록 한다.

• Journal of KIISE:Software and Applications
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• v.27 no.3
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• pp.257-265
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• 2000

There is much selective confliction in nature where selfish and rational individuals exists. Iterated Prisoner's Dilemma (IPD) game deals with this problem, and has been used to study on the evolution of cooperation in social, economic and biological systems. So far, there has been much work about the relationship of the number of players and cooperation, strategy learning as a machine learning and the effect of payoff functions to cooperation. In this paper, We attempt to investigate the cooperative coalition size according to payoff functions, and observe the relationship of localization and the evolution of cooperation in NIPD (N-player IPD) game. Experimental results indicate that cooperative coalition size increases as the gradient of the payoff function for cooperation becomes steeper than that of defector's payoff function, or as the minimum coalition size gets smaller, Moreover, the smaller the neighborhood of interaction is, the higher the cooperative coalition emerges through the evolution of population.