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Hiroyuki Iida Professor
School of Information Science¡¢Entertainment Technology Area


Ph.D. Tokyo University of Agriculture and Technology(1994)


Computers and Games

¢£Research Keywords

Game-refinement theory, Opponent-modellinig, Search, Computer Shogi

¢£Research Interests

Entertainment Sustainability and Morality
In this project, we develop the information technology of evaluating entertainment quantitatively based on the concept of information sciences. Applying this technology, we analyze the negative sides of entertainment in the current e-society. From the analyses, we propose the model plan for the international moral standards for the creators and providers in e-society. We show the theoretical and quantitative method for dealing the social moral problems associated with entertainment environment in e-society. By setting the moral standards in e-society, we contribute the healthy and rightful development of e-society by increasing the morality of entertainment-related business firms.
The Dynamics of Intelligence in the Game Field
Just as men long for freedom, intelligence seeks for uncertainty. Games, whichepitomize uncertainty, evolved in their long history to refine uncertainty. This¡¡process employed a harmony between skill and chance in games, leading to evolutionary¡¡changes in noble uncertainty. Masters who stand at the top of their games seek the ultimate harmony that may exist at the end of the changes.Despite their desire to win, masters occasionally exercise their creativity unconditionally without prejudice. We call this state of mind, that is commonly found among masters, the ¡Èmodel of three masters¡É. This model reveals three distinct master aspects: the master of winning, the master of playing and the master of understanding. They correspond to each of the three aspects that games possess: competitiveness, entertainment, and metaphor. The model of three masters indicates the existence of various interactions between intelligences of players. We explore it in terms of the ¡Èdynamics of intelligence in the field of games¡É
Games in AI Research - Chips Challenging Champions -
Research using games has demonstrated the possibility of creating high-performance artificial-intelligence systems. Programming computers to play games is but one stage in the development of an understanding of the methods which must be employed for the machine simulation of intellectual behaviour. This research project strives beauty of `Information and Systems' in building a world-championship-caliber shogi program. Moreover, the diversity of decision-making systems and the evolution of intelligence in games will be investigated.

Master Mind
This study examines the way of thinking of masters from the informatics¡Ç point of view. Game informatics is a field where it searches game metric and finding out the meaning of games. Just as men long for freedom, the intellects seek uncertainty. Games, which epitomize uncertainty, have evolved in their long history to optimize uncertainty refinement. This process is a harmony between skill and chance, hence, evolutionary transformation in ¡Ènoble uncertainty¡É. Masters who stand on top of their games seek the ultimate harmony which may exist at the end of noble uncertainty¡Çs transitional path. Despite their desire to win, grandmasters seek to find their originality unconditionally without prejudice. I will call this state of mind which is commonly found among grandmasters the ¡Èmodel of three masters¡É. The true essence in game playing lies in predicting the opponent¡Çs way of thinking. This skill involves ¡Èempathy¡É with opponent¡Çs psyche and is referred as ¡Èopponent-model search¡É. Masters discover great proficiency in opponents and their nature of changes. I would like to propose this transformation of empathy as the ¡Èmodel of player¡Çs cycle¡É.
Consensus Building and Group Performance in Games
We test N-member simple majority voting for the game ofChess. Several different chess programs were used to make the group. Games were played against the strongest member of the group. We show that the group is stronger than the strongest program. We then aim to answer the research question, under what conditions is N-member simple majority voting stronger than the strongest member?". We performed experiments on various groups. Statistics were gathered about the situations where the group outvoted the group leader. We propose two conditions to answer the research question, firstly group members should be almost equal in strength whilst still showing significant strength difference, and secondly denial percentage of leaders candidate depends on the strength of the members.



  • Computational Science and Technology4th ICCST 2017, Kuala Lumpur, Malaysia, 29-30 November 2017¡¤Rayner Alfred, Hiroyuki Iida, Ag. Asri Ag. Ibrahim, Yuto Lim¡¤Lecture Notes in Electrical Engineering, vol.488, Springer Nature Singapore¡¤2017¡¤466
  • Computational Science and Technology - ICCST 2017. Lecture Notes in Electrical Engineering, vol 488.¡¤Rayner Alfred, Hiroyuki Iida, Ag. Asri Ag. Ibrahim, Yuto Lim¡¤Springer, Singapore¡¤2018¡¤466
  • Computers and Games (CG2013), LNCS 8427¡¤Aske Plaat, Jaap van den Herik, Hiroyuki Iida¡¤Springer¡¤2014¡¤250

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¡þPublished Papers

  • Expansion of Game Refinement Theory into Continuous Movement Games: A Comparison of Two Video Games¡¤Norizan Mat Diah, Arie Pratama Sutiono, Long Zuo, Nathan Nossal, Hiroyuki Iida, Nor Azan Mat Zin¡¤WSEAS TRANSACTIONS on INFORMATION SCIENCE and APPLICATIONS¡¤13¡¤126-133¡¤2016/01
  • Measuring the Excitement in Boxing Game with Game Refinement Theory¡¤C.Panumate, H.Iida, A.B.Nordin¡¤2016 International Conference on Hospitality, Leisure, Sports, and Tourism (HLST 2016)¡¤2016/01/19
  • An Analysis of Sports using Game Refeinement Measure¡¤Chetprayoon Panumate, Hiroyuki Iida, Ryo Takahashi¡¤ODISHA Journal of Social Science¡¤4¡¤1¡¤4-48¡¤2017/01/31

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¡þLectures and Presentations

  • Measuring the Excitement in Boxing Game with Game Refinement Theory¡¤C.Panmumate, H. Iida, A.B.Nordin¡¤2016 International Conference on Hospitality, Leisure, Sports, and Tourism (HLST 2016)¡¤¡¤Bankok, Thailand¡¤2016/01/19
  • The Current and Future Trends of Gaming: Chips Challenging Champions - Chess, Shogi and Go¡¤H.Iida¡¤Universiti Sains Islam Malaysia¡¤Bandar Baru Nilai, Malaysia¡¤2016/04/27
  • Quantifying Entertainment: Board games and Sports games¡¤H.Iida¡¤Universiti Sains Islam Malaysia¡¤Bandar Baru Nilai, Malaysia¡¤2016/04/28

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¢£Extramural Activities

¡þAcademic Society Affiliations

  • AIGAW 2013¡¤Programme member¡¤2013-
  • TAAI 2013¡¤Programme member¡¤2013-
  • GPW 2013¡¤Programme member¡¤2013-

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¡þOther Activities

  • Mind Sports Olympiad¡¤Mind Sports Olympiad Organizing Committee, Vice Chairman¡¤2012/12/01 - 2013/08/17
  • Information Processing Society of Japan¡¤Guest Editor for the Game Programming Special Issue of IPSJ Transaction¡¤2007/04/01 - 2007/10/31
  • International Computer Games Association¡¤ICGA Journal, Editor¡¤2002/01/01 -

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¢£Academic Awards Received

  • Contribution Award¡¤Computer Shogi Association¡¤2011
  • The winner of the CESA Developers Conference 2010 Computer 9x9 Go tournament¡¤Computer Entertainment Supplier's Association¡¤2010
  • The JAIST Computer Olympiad, Bronze medal in the Quoridor Tournament¡¤International Computer Games Association¡¤2010

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