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Created page with "'''Home * People * Kei Takada''' FILE:KeiTakada.jpg|border|right|thumb|link=https://icga.leidenuniv.nl/?page_id=1431| Kei Takada <ref>Image cropped from [..."
'''[[Main Page|Home]] * [[People]] * Kei Takada'''
[[FILE:KeiTakada.jpg|border|right|thumb|link=https://icga.leidenuniv.nl/?page_id=1431| Kei Takada <ref>Image cropped from [https://icga.leidenuniv.nl/?page_id=1431 18th Computer Olympid - Day 5 Photos] by [[Jan Krabbenbos]], Price giving in [[Hex]]</ref> ]]
'''Kei Takada''',<br/>
a Japanese computer scientist affiliated with the Graduate School of Information Science and Technology, [https://en.wikipedia.org/wiki/Hokkaido_University Hokkaido University], [https://en.wikipedia.org/wiki/Sapporo Sapporo], [https://en.wikipedia.org/wiki/Hokkaido Hokkaido]. Along with [[Masaya Honjo]], [[Hiroyuki Iizuka]], and [[Masahito Yamamoto]], Kei Takada is author of the [[Hex]] playing program [https://www.game-ai-forum.org/icga-tournaments/program.php?id=755 Ezo], which played the [[17th Computer Olympiad|17th Computer Olympiad]] in [https://en.wikipedia.org/wiki/Yokohama Yokohama] 2013, and the [[18th Computer Olympiad]] in [[Leiden University|Leiden]] 2015. Ezo uses 2-ply [[Alpha-Beta|alpha-beta]] search with an [[Evaluation function|evaluation function]] based on the theory of [https://en.wikipedia.org/wiki/Complex_network complex networks]. The function combines a betweenness measure of the player’s two sides with a shortest path metric that accounts for the degree of important nodes, further elaborted by Kei Takada at the [[Advances in Computer Games 14]] conference in Leiden 2015 <ref> [[Kei Takada]], [[Masaya Honjo]], [[Hiroyuki Iizuka]], [[Masahito Yamamoto]] ('''2015'''). ''[http://link.springer.com/chapter/10.1007%2F978-3-319-27992-3_21 Developing Computer Hex using Global and Local Evaluation based on Board Network Characteristics]''. [[Advances in Computer Games 14]], [https://acg2015.files.wordpress.com/2015/07/takada.pdf slides as pdf]</ref>. EZO switches to a [[Vadim Anshelevich#Hexy|Hexy-style]] evaluation when remaining time becomes short <ref>[[Ryan Hayward]], [[Broderick Arneson]], [[Shih-Chieh Huang]], [[Jakub Pawlewicz]] ('''2013'''). ''MOHEX Wins Hex Tournament''. [[ICGA Journal#36_3|ICGA Journal, Vol. 36, No. 3]], [https://webdocs.cs.ualberta.ca/~hayward/papers/rptYokohama.pdf pdf]</ref>.
=Selected Publications=
* [[Kei Takada]], [[Masaya Honjo]], [[Hiroyuki Iizuka]], [[Masahito Yamamoto]] ('''2015'''). ''[http://link.springer.com/chapter/10.1007%2F978-3-319-27992-3_21 Developing Computer Hex using Global and Local Evaluation based on Board Network Characteristics]''. [[Advances in Computer Games 14]], [https://acg2015.files.wordpress.com/2015/07/takada.pdf slides as pdf]
* [[Ryan Hayward]], [[Jakub Pawlewicz]], [[Kei Takada]], [[Tony van der Valk]] ('''2017'''). ''MOHEX Wins 2015 Hex 11x11 and Hex 13x13 Tournaments''. [[ICGA Journal#39_1|ICGA Journal, Vol. 39, No. 1]] » [[18th Computer Olympiad#Hex|18th Computer Olympiad]]
=References=
<references />
'''[[People|Up one level]]'''
[[FILE:KeiTakada.jpg|border|right|thumb|link=https://icga.leidenuniv.nl/?page_id=1431| Kei Takada <ref>Image cropped from [https://icga.leidenuniv.nl/?page_id=1431 18th Computer Olympid - Day 5 Photos] by [[Jan Krabbenbos]], Price giving in [[Hex]]</ref> ]]
'''Kei Takada''',<br/>
a Japanese computer scientist affiliated with the Graduate School of Information Science and Technology, [https://en.wikipedia.org/wiki/Hokkaido_University Hokkaido University], [https://en.wikipedia.org/wiki/Sapporo Sapporo], [https://en.wikipedia.org/wiki/Hokkaido Hokkaido]. Along with [[Masaya Honjo]], [[Hiroyuki Iizuka]], and [[Masahito Yamamoto]], Kei Takada is author of the [[Hex]] playing program [https://www.game-ai-forum.org/icga-tournaments/program.php?id=755 Ezo], which played the [[17th Computer Olympiad|17th Computer Olympiad]] in [https://en.wikipedia.org/wiki/Yokohama Yokohama] 2013, and the [[18th Computer Olympiad]] in [[Leiden University|Leiden]] 2015. Ezo uses 2-ply [[Alpha-Beta|alpha-beta]] search with an [[Evaluation function|evaluation function]] based on the theory of [https://en.wikipedia.org/wiki/Complex_network complex networks]. The function combines a betweenness measure of the player’s two sides with a shortest path metric that accounts for the degree of important nodes, further elaborted by Kei Takada at the [[Advances in Computer Games 14]] conference in Leiden 2015 <ref> [[Kei Takada]], [[Masaya Honjo]], [[Hiroyuki Iizuka]], [[Masahito Yamamoto]] ('''2015'''). ''[http://link.springer.com/chapter/10.1007%2F978-3-319-27992-3_21 Developing Computer Hex using Global and Local Evaluation based on Board Network Characteristics]''. [[Advances in Computer Games 14]], [https://acg2015.files.wordpress.com/2015/07/takada.pdf slides as pdf]</ref>. EZO switches to a [[Vadim Anshelevich#Hexy|Hexy-style]] evaluation when remaining time becomes short <ref>[[Ryan Hayward]], [[Broderick Arneson]], [[Shih-Chieh Huang]], [[Jakub Pawlewicz]] ('''2013'''). ''MOHEX Wins Hex Tournament''. [[ICGA Journal#36_3|ICGA Journal, Vol. 36, No. 3]], [https://webdocs.cs.ualberta.ca/~hayward/papers/rptYokohama.pdf pdf]</ref>.
=Selected Publications=
* [[Kei Takada]], [[Masaya Honjo]], [[Hiroyuki Iizuka]], [[Masahito Yamamoto]] ('''2015'''). ''[http://link.springer.com/chapter/10.1007%2F978-3-319-27992-3_21 Developing Computer Hex using Global and Local Evaluation based on Board Network Characteristics]''. [[Advances in Computer Games 14]], [https://acg2015.files.wordpress.com/2015/07/takada.pdf slides as pdf]
* [[Ryan Hayward]], [[Jakub Pawlewicz]], [[Kei Takada]], [[Tony van der Valk]] ('''2017'''). ''MOHEX Wins 2015 Hex 11x11 and Hex 13x13 Tournaments''. [[ICGA Journal#39_1|ICGA Journal, Vol. 39, No. 1]] » [[18th Computer Olympiad#Hex|18th Computer Olympiad]]
=References=
<references />
'''[[People|Up one level]]'''
