Hiroyuki Iida, a Japanese computer scientist and computer games researcher with focus on Game-refinement theory, Opponent Model Search, and Computer Shogi. Hiroyuki Iida is Professor at Japan Advanced Institute of Science and Technology (JAIST), and head of the games laboratory [1][2]. Before, he was affiliated with the Shizuoka University, Hamamatsu, and was postdoctoral researcher at Maastricht University. He received his Ph.D. on Heuristic Theories on Game-Tree Search from Tokyo University of Agriculture and Technology, Tokyo [3] . Hiroyuki Iida is a professional 6-dan Shogi player, and co-author of the Shogi program Tacos, the four times Gold medal winner at Computer Olympiads [4] . He is member of the Board of the ICGA as Secretary-Treasurer and Section Editor of the ICGA Journal.
Hiroyuki Iida [5]

Photos

Hiroyuki Iida watching TACOS [6]

Selected Publications

1990 ...

• Hiroyuki Iida, Yoshiyuki Kotani (1991). Computer Shogi. The Proceedings of Game Playing System Workshop, pp. 42-48. ICOT, Tokyo, Japan.
• Hiroyuki Iida, Jos Uiterwijk (1992). How to Become a Shogi Grandmaster. Proceedings of The First European Shogi Workshop, Heidelberg, Germany, Vol. 1, pp. 25-29. Shogi Deutschland and EMBL.
• Hiroyuki Iida (1993). Shogi in Europe. Uniprint, University of Limburg.
• Hiroyuki Iida, Jos Uiterwijk (1993). Thoughts on Grandmaster-like Strategies. Proceedings of The Second European Shogi Workshop. Shogi Deutschland and EMBL, Heidelberg, Germany.
• Hiroyuki Iida, Jos Uiterwijk, Jaap van den Herik (1993). Opponent-Model Search. Technical Report CS 93-03, University of Limburg. ISSN 0922-8721.
• Hiroyuki Iida, Jos Uiterwijk, Jaap van den Herik, Bob Herschberg (1993). Potential Applications of Opponent-Model Search. Part 1: The Domain of Applicability. ICCA Journal, Vol. 16, No. 4
• Hiroyuki Iida (1994). Heuristic Theories on Game-Tree Search. Ph.D. thesis, Tokyo University of Agriculture and Technology, Tokyo. ISBN 4-944082-02-9
• Hiroyuki Iida, Jos Uiterwijk, Yoshiyuki Kotani (1994). Tutoring Strategy in Game Playing. 1st Game Programming Workshop (Japanese)
• Hiroyuki Iida, Jos Uiterwijk, Jaap van den Herik, Bob Herschberg (1994). Potential Applications of Opponent-Model Search. Part 2. Risks and strategies. ICCA Journal, Vol. 17, No. 1
• Hiroyuki Iida, Jos Uiterwijk, Jaap van den Herik, Bob Herschberg (1994). Thoughts on the Application of Opponent-Model Search. Advances in Computer Chess 7

1995 ...

• Masayuki Fujii, Hiroyuki Iida, Yoshiyuki Kotani (1995). Prediction of an opponent's move using opponent's time effectively. 2nd Game Programming Workshop
• Yoshiyuki Kotani, Hiroyuki Iida (1995). Which moves should be pruned - classification of Shogi Moves and Ratio of Played Moves. 2nd Game Programming Workshop
• Hiroyuki Iida, Yoshiyuki Kotani, Jos Uiterwijk (1995). Tutoring Strategies in Game-Tree Search. ICCA Journal, Vol. 18, No. 4, extended abstract as pdf
• Hiroyuki Iida, Fuminari Abe (1996). Brinkmate Search. 3rd Game Programming Workshop
• Hirofumi Nakaie, Hiroyuki Iida, Yoshiyuki Kotani (1996). A Method of Applying Opening Book Data to Non-Recorded Positions. 3rd Game Programming Workshop
• Hiroyuki Iida, Jos Uiterwijk, Jaap van den Herik (1996). A Game-Tree Model Including an Opponent Model. Proceedings of the Eighth Dutch Conference on Artificial Intelligence (NAIC'96) (eds. J.-J.Ch. Meyer and L.C. van der Gaag), pp. 223-234. Utrecht University
• Hitoshi Matsubara, Hiroyuki Iida, Jos Uiterwijk (1996). A Shogi-Computer Test Set. ACM Conference on Computer Science
• Hiroyuki Iida, Yoshiyuki Kotani, Jos Uiterwijk, Jaap van den Herik (1997). Gains and Risks of OM Search. Advances in Computer Chess 8
• Hitoshi Matsubara, Hiroyuki Iida, Reijer Grimbergen (1997). Chess, Shogi, Go, natural developments in game research. pdf

• Jaap van den Herik, Hiroyuki Iida (eds.) (1998). Computers and Games. CG 1998
  Xinbo Gao, Hiroyuki Iida, Jos Uiterwijk, Jaap van den Herik (1998). A Speculative Strategy. CG 1998
  Hiroyuki Iida, Jin Yoshimura, Kazuro Morita, Jos Uiterwijk (1998). Retrograde Analysis of the KGK Endgame in Shogi: Its Implications for Ancient Heian Shogi. CG 1998
• Makoto Sakuta, Hiroyuki Iida (1999). Solving Problems with Uncertainty: A case study using Tsuitate-Tsume-Shogi. 5th Game Programming Workshop
• Nobusuke Sasaki, Hiroyuki Iida (1999). Report on the First Open Computer-Amazons Championship. ICCA Journal, Vol. 22, No. 1
• Nobusuke Sasaki, Hiroyuki Iida, Tsuyoshi Hashimoto (1999). Evolutionary Changes of Chess-like Games: A Study Using Self-play Experiments. Joho Shori Gakkai Shinpojiumu Ronbunshu, Vol. 99, No. 14 (Japanese)

2000 ...

• Hiroyuki Iida, Martin Müller (2000). Report on the Second Open Computer-Amazons Championship. ICGA Journal, Vol 23, No. 1
• Jaap van den Herik, Hiroyuki Iida (eds.) (2000). Games in AI Research. Universiteit Maastricht
• H. Watanabe, Hiroyuki Iida, Jos Uiterwijk (2000). Automatic Composition of Shogi Mating Problems. in Jaap van den Herik, Hiroyuki Iida (eds.) (2000). Games in AI Research.
• Hiroyuki Iida, Jos Uiterwijk, Jaap van den Herik. (2000). Cooperative Strategies for Pair Playing. in Jaap van den Herik, Hiroyuki Iida (eds.) (2000). Games in AI Research.
• Hiroyuki Iida (2000). YSS wins Shogi Tournament. ICGA Journal, Vol. 23, No. 3 » 5th Computer Olympiad
• Makoto Sakuta, Hiroyuki Iida, Jin Yoshimura (2000). A Deterministic Approach for Solving Kriegspiel-like Problems. 5th Computer Olympiad Workshop
• Tsuyoshi Hashimoto, Yoichiro Kajihara, Hiroyuki Iida (2000). Brinkmate Search in Computer Shogi. 5th Computer Olympiad Workshop
• Makoto Sakuta, Hiroyuki Iida (2000). Solving Kriegspiel-like Problems: Exploiting a Transposition Table. ICGA Journal, Vol 23, No. 4, pdf
• Makoto Sakuta, Hiroyuki Iida, Jin Yoshimura (2000). Solving Problems under {Uncertainty Paradigm}. Proceedings of International Conference on Advances in Infrastructure for Electronic Business, Science and Education on the Internet (SSGRR 2000), L'Aquila, Italy. (in CD-ROM).

• Makoto Sakuta, Hiroyuki Iida (2001). The Performance of PN*, PDS, and PN Search on 6x6 Othello and Tsume-Shogi. Advances in Computer Games 9
• Nobusuke Sasaki, M. Hirasawa, Tsuyoshi Hashimoto, Hiroyuki Iida, Jos Uiterwijk, Jaap van den Herik (2001). Hira, a Four-handed Shogi Program. Advances in Computer Games 9
• Tsuyoshi Hashimoto, Yoichiro Kajihara, Nobusuke Sasaki, Hiroyuki Iida, Jin Yoshimura (2001). An Evaluation Function for Amazons. Advances in Computer Games 9
• Masahiro Seo, Hiroyuki Iida, Jos Uiterwijk (2001). The PN*-Search Algorithm: Applications to Tsume-Shogi. Artificial Intelligence, Vol. 129, Nos. 1-2
• Xinbo Gao, Hiroyuki Iida, Jos Uiterwijk, Jaap van den Herik (2001). Strategies anticipating a difference in search depth using opponent-model search. Theoretical Computer Science, Vol. 252, Nos. 1–2
• Hiroyuki Iida (2001). 8QP wins Amazons tournament. ICGA Journal, Vol. 24, No. 3 » 6th Computer Olympiad
• Makoto Sakuta, Hiroyuki Iida (2001). AND/OR-tree Search Algorithms in Shogi Mating Search. ICGA Journal, Vol. 24, No. 4

• Makoto Sakuta, Tsuyoshi Hashimoto, Jun Nagashima, Hiroyuki Iida (2002). Endgame-search techniques developed in shogi: application to Lines of Action. In Caulfield, H. et al., editor, Proceedings of JCIS 2002, pages 458-460.
• Hiroyuki Iida, Makoto Sakuta, Jeff Rollason (2002). Computer Shogi. Artificial Intelligence, Vol. 134, Elsevier, CiteSeerX
• Jun Nagashima, Masahumi Taketoshi, Yoichiro Kajihara, Tsuyoshi Hashimoto, Hiroyuki Iida (2002). An Efficient Use of Piece-Square Tables in Computer Shogi.
• Hiroyuki Iida (2002). Control Freak wins Dots-and-Boxes tournament. ICGA Journal, Vol. 25, No. 3 » 7th Computer Olympiad
• Hiroyuki Iida (2002). Dynamic-Information Games. 7th Computer Olympiad Workshop
• Makoto Sakuta, Tsuyoshi Hashimoto, Jun Nagashima, Jos Uiterwijk, Hiroyuki Iida (2002). Application of the killer-tree heuristic and the lambda-search method to lines of action. ^[9]
• Hiroyuki Iida, Nobuo Takeshita, Jin Yoshimura (2002). A metric for entertainment of boardgames: its implication for evolution of chess variant. IWEC 2002: Makuhari, Japan

• Tsuyoshi Hashimoto, Jun Nagashima, Makoto Sakuta, Jos Uiterwijk, Hiroyuki Iida (2003). Automatic realization-probability search. Internal report, Dept. of Computer Sciences, Shizuoka University, Hamamatsu, Japan
• Hiroyuki Iida, Kazutoshi Takahara, Jun Nagashima, Yoichiro Kajihara, Tsuyoshi Hashimoto (2004). An Application of Game-Refinement Theory to Mah Jong. ICEC'2004

2005 ...

• Hiroyuki Iida (2005). Towards Dynamics of Intelligence in the Field of Games. Advances in Computer Games 11 - Invited Lecture
• Junichi Hashimoto, Tsuyoshi Hashimoto, Hiroyuki Iida (2007). Context Killer Heuristic and Its Application to Computer Shogi. CGW 2007 » Killer Heuristic
• Julien Kloetzer, Hiroyuki Iida, Bruno Bouzy (2007). The Monte-Carlo approach in Amazons. CGW 2007, pdf
• Toru Ueda, Tsuyoshi Hashimoto, Junichi Hashimoto, Hiroyuki Iida (2008). Weak Proof-Number Search. CG 2008
• Alessandro Cincotti, Hiroyuki Iida (2008). The Game of Synchronized Domineering. CG 2008
• Alessandro Cincotti, Shigetaka Komori, Hiroyuki Iida (2008). The Game of Synchronized Triomineering and Synchronized Tridomineering. International Journal of Computational and Mathematical Sciences 2:3 2008, pdf
• Julien Kloetzer, Hiroyuki Iida, Bruno Bouzy (2008). A Comparative Study of Solvers for Amazons Endgames. CIG'08, pdf
• Julien Kloetzer, Hiroyuki Iida, Bruno Bouzy (2009). Playing Amazons Endgames. ICGA Journal, Vol. 32, No. 3, pdf

2010 ...

• Hiroyuki Iida (2011). The 2011 Japan Prize Awarded to Unix Pioneers. ICGA Journal, Vol. 34, No. 1
• Yuichiro Sato, Alessandro Cincotti, Hiroyuki Iida (2012). An Analysis of Voting Algorithm in Games. ECAI CGW 2012
• Kristian Spoerer, Toshihisa Okaneya, Kokolo Ikeda, Hiroyuki Iida (2013). Further Investigations of 3-Member Simple Majority Voting for Chess. CG 2013
• Jaap van den Herik, Hiroyuki Iida, Aske Plaat (2013). The 8th Computers and Games Conference. ICGA Journal, Vol. 36, No. 3 » CG 2013
• Taichi Ishitobi, Alessandro Cincotti, Hiroyuki Iida (2013). Shape-Keeping Technique and Its Application to Checkmate Problem Composition. 2013 AIIDE Workshop
• Jaap van den Herik, Hiroyuki Iida, Aske Plaat, Johanna Hellemons (2013). The Brain and Mind Sports Olympiad. ICGA Journal, Vol. 36, No. 3 » 17th Computer Olympiad
• Jaap van den Herik, Hiroyuki Iida, Aske Plaat (2013). The 8th Computers and Games Conference (Part 2). ICGA Journal, Vol. 36, No. 4 » CG 2013
• Jaap van den Herik, Hiroyuki Iida, Aske Plaat, Johanna Hellemons (2013). The Brain and Mind Sports Olympiad (Part 2). ICGA Journal, Vol. 36, No. 4 » 17th Computer Olympiad
• Jaap van den Herik, Hiroyuki Iida, Aske Plaat (eds.) (2014). Computers and Games: 8th International Conference, CG 2013, Yokohama, Japan, August 13-15, 2013, Revised Selected Papers. LNCS 8427, Springer, ISBN-13: 978-3-319-09164-8 » CG 2013 ^[10]

2015 ...

• Taichi Ishitobi, Aske Plaat, Hiroyuki Iida, Jaap van den Herik (2015). Reducing the Seesaw Effect with Deep Proof Number Search. Advances in Computer Games 14
• Yuichiro Sato, Hiroyuki Iida, Jaap van den Herik (2015). Transfer Learning by Inductive Logic Programming. Advances in Computer Games 14
• Mohd Nor Akmal Khalid, Umi Kalsom Yusof, Hiroyuki Iida, Taichi Ishitobi (2015). Critical Position Identification in Games and Its Application to Speculative Play. ICAART 2015
• Mohd Nor Akmal Khalid, E. Mei Ang, Umi Kalsom Yusof, Hiroyuki Iida, Taichi Ishitobi (2015). Identifying Critical Positions Based on Conspiracy Numbers. Agents and Artificial Intelligence, ICAART 2015 - Revised Selected Papers
• Danilo Carvalho, Minh Le Nguyen, Hiroyuki Iida (2017). An Analysis of Majority Voting in Homogeneous Groups for Checkers: Understanding Group Performance through Unbalance. Advances in Computer Games 15, ResearchGate

External Links

• Hiroyuki Iida Profile from JAIST
• Hiroyuki Iida's ICGA Tournaments

References

1. ^ ICGA: Lines of Action by Mark Winands
2. ^ Research Center for Computers and Games - Members
3. ^ Hiroyuki Iida (1994). Heuristic Theories on Game-Tree Search. Ph.D. thesis, Tokyo University of Agriculture and Technology, Tokyo. ISBN 4-944082-02-9
4. ^ Shogi at the Computer Olympiad
5. ^ Hiroyuki Iida Profile from Japan Advanced Institute of Science and Technology
6. ^ World Computer Shogi Championship 2006 - AI Factory newsletter article Spring 2006 by Reijer Grimbergen
7. ^ ICGA Reference Database (pdf)
8. ^ Hiroyuki Iida Author profile from ACM Portal
9. ^ ScienceDirect - Information Sciences : Application of the killer-tree heuristic and the lambda-search method to lines of action
10. ^ Dap Hartmann (2014). A Statue of unremitting Devotion. Revised Selected papers CG 2013. (Review) ICGA Journal, Vol. 37, No. 3

What links here?