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Created page with "'''Home * People * Yu Nasu''' '''Yu Nasu''', (那須悠)<br/> a Japanese computer scientist and Shogi programmer. While affiliated with the [https://en..."
'''[[Main Page|Home]] * [[People]] * Yu Nasu'''
'''Yu Nasu''', (那須悠)<br/>
a Japanese computer scientist and [[Shogi]] programmer.
While affiliated with the [https://en.wikipedia.org/wiki/Tokyo_Institute_of_Technology Tokyo Institute of Technology] <ref>[https://www.researchgate.net/scientific-contributions/69800429_Yu_Nasu Yu Nasu's research works | Tokyo Institute of Technology, Tokyo (TITech) and other places], [https://en.wikipedia.org/wiki/ResearchGate ResearchGate]</ref>,
and the ''Knowledge Media Laboratory'', [https://en.wikipedia.org/wiki/Toshiba Toshiba],
his research focused on [https://en.wikipedia.org/wiki/Natural_language_processing#Statistical_natural_language_processing_(SNLP) natural language processing],
[https://en.wikipedia.org/wiki/Speech_recognition speech recognition] and [https://en.wikipedia.org/wiki/Speech_synthesis speech synthesis] as application of [https://en.wikipedia.org/wiki/Hidden_Markov_model hidden Markov model] and [[Neural Networks|neural networks]] <ref>[https://dblp.org/pers/hd/o/Ohtani:Yamato Yamato Ohtani], [[Yu Nasu]], [https://dblp.org/pers/hd/m/Morita:Masahiro Masahiro Morita], [https://dblp.org/pers/hd/a/Akamine:Masami Masami Akamine] ('''2015'''). ''[https://www.semanticscholar.org/paper/Emotional-transplant-in-statistical-speech-based-on-Ohtani-Nasu/5d6c1846bef6e8f796a84f6d7a381fdcffe1e1dd Emotional transplant in statistical speech synthesis based on emotion additive model]''. [https://dblp.org/db/conf/interspeech/interspeech2015.html#OhtaniNMA15 INTERSPEECH 2015]</ref>.
=Shogi=
Along with [[Hisayori Noda]] (Nodchip), [[Jun Okabe]], [[Takahiro Suzuki]], and [[Masatoshi Hidaka]],
Yu Nasu is member of ''The Minstrel's Ballad: Tanuki's Reign''
<ref>[https://groups.google.com/d/msg/shogi-l/-fO7GP6Zzww/8pG4UYeNAAAJ WCSC26 participation list] by [[Reijer Grimbergen]], [https://groups.google.com/forum/#!forum/shogi-l SHOGI-L], April 08, 2016</ref>
<ref>[https://groups.google.com/d/msg/shogi-l/v-tznD0IQe0/37KYlSYtAgAJ The 27th World Computer Shogi Championship: participant list] by [[Takenobu Takizawa]], [https://groups.google.com/forum/#!forum/shogi-l SHOGI-L], April 17, 2017</ref>
and subsequently the ''Ziosoft Computer Shogi Club'', developing the Shogi playing entities ''the end of genesis T.N.K.evolution turbo type D''
<ref>[http://www2.computer-shogi.org/wcsc28/ 第28回世界コンピュータ将棋選手権 wcsc28]</ref>
<ref>[https://www.uuunuuun.com/single-post/2019/05/28/Installation-instruction-of-shogi-engines-v2019-May Installation instruction of shogi engines], May 28, 2019</ref>
and the [[WCSC29|29th World Computer Shogi Champion]] <ref>[http://www2.computer-shogi.org/wcsc29/ 第29回世界コンピュータ将棋選手権 wcsc29]</ref> [[YaneuraOu]] <ref>[http://yaneuraou.yaneu.com/ やねうら王 公式サイト | コンピューター将棋 やねうら王 公式サイト]</ref> <ref>[https://github.com/yaneurao/YaneuraOu GitHub - yaneurao/YaneuraOu: YaneuraOu is the World's Strongest Shogi engine(AI player), WCSC29 1st winner, educational and USI compliant engine]</ref>.
=NNUE=
In 2018, Yu Nasu introduced a new [[Evaluation Function|evaluation function]] based on a shallow [[Neural Networks|neural network]]
whose heavily overparametrized input layer outputs were [[Incremental Updates|incremental updated]] in [[Make Move|make]] and [[Unmake Move|unmake move]].
This approach, dubbed [[NNUE]] (ƎUИИ Efficiently Updatable Neural Networks), turned out to become extremely powerful.
NNUE was used along with a [[Stockfish]] based Shogi adaptation in [[YaneuraOu]], as well in other Shogi playing entities such as
[[Kristallweizen-kai]] <ref>[https://github.com/Tama4649/Kristallweizen/ GitHub - Tama4649/Kristallweizen: 第29回世界コンピュータ将棋選手権 準優勝のKristallweizenです。]</ref>,
apparently with superhuman [[AlphaZero]] strength <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=72754 The Stockfish of shogi] by [[Larry Kaufman]], [[CCC]], January 07, 2020</ref>.
YaneuraOu team member [[Hisayori Noda]] aka Nodchip proved that Nasu's idea also works well in [[Chess|western chess]], yielding to [[Stockfish NNUE]].
=Selected Publications=
<ref>[https://dblp.org/pers/n/Nasu:Yu.html dblp: Yu Nasu]</ref>
* [[Yu Nasu]], [https://dblp.org/pers/hd/s/Shinoda:Koichi Koichi Shinoda], [https://dblp.org/pers/hd/f/Furui:Sadaoki Sadaoki Furu] ('''2011'''). ''[https://ieeexplore.ieee.org/abstract/document/5947432 Cross-Channel Spectral Subtraction for meeting speech recognition]''. [https://dblp.org/db/conf/icassp/icassp2011.html#NasuSF11 ICASSP 2011]
* [https://dblp.org/pers/hd/y/Yokoyama:Ryo Ryo Yokoyama], [[Yu Nasu]], [https://dblp.org/pers/hd/s/Shinoda:Koichi Koichi Shinoda], [https://dblp.org/pers/hd/i/Iwano:Koji Koji Iwano] ('''2012'''). ''[https://www.semanticscholar.org/paper/Overlapped-Speech-Detection-in-Meeting-Using-and-Yokoyama-Nasu/862c1571c47ca77ce5f227b47eef77a35c264a53 Overlapped Speech Detection in Meeting Using Cross-Channel Spectral Subtraction and Spectrum Similarity]''. [https://dblp.org/db/conf/interspeech/interspeech2012.html INTERSPEECH 2012]
* [https://dblp.org/pers/hd/o/Ohtani:Yamato Yamato Ohtani], [[Yu Nasu]], [https://dblp.org/pers/hd/m/Morita:Masahiro Masahiro Morita], [https://dblp.org/pers/hd/a/Akamine:Masami Masami Akamine] ('''2015'''). ''[https://www.semanticscholar.org/paper/Emotional-transplant-in-statistical-speech-based-on-Ohtani-Nasu/5d6c1846bef6e8f796a84f6d7a381fdcffe1e1dd Emotional transplant in statistical speech synthesis based on emotion additive model]''. [https://dblp.org/db/conf/interspeech/interspeech2015.html#OhtaniNMA15 INTERSPEECH 2015] <ref>[https://en.wikipedia.org/wiki/Hidden_semi-Markov_model hidden semi-Markov model from Wikipedia]</ref> <ref>[https://en.wikipedia.org/wiki/Kernel_eigenvoice Kernel eigenvoice from Wikipedia]</ref>
* [[Yu Nasu]] ('''2018'''). ''ƎUИИ Efficiently Updatable Neural-Network based Evaluation Functions for Computer Shogi''. Ziosoft Computer Shogi Club, [https://github.com/ynasu87/nnue/blob/master/docs/nnue.pdf pdf], [https://www.apply.computer-shogi.org/wcsc28/appeal/the_end_of_genesis_T.N.K.evolution_turbo_type_D/nnue.pdf pdf] (Japanese with English abstract)
=External Links=
* [https://www.researchgate.net/scientific-contributions/69800429_Yu_Nasu Yu Nasu's research works | Tokyo Institute of Technology, Tokyo (TITech) and other places], [https://en.wikipedia.org/wiki/ResearchGate ResearchGate]
* [http://yaneuraou.yaneu.com/ やねうら王 公式サイト | コンピューター将棋 やねうら王 公式サイト] (YaneuraOu)
* [https://github.com/yaneurao/YaneuraOu GitHub - yaneurao/YaneuraOu: YaneuraOu is the World's Strongest Shogi engine(AI player), WCSC29 1st winner, educational and USI compliant engine]
=References=
<references />
'''[[People|Up one level]]'''
[[Category:Shogi Programmer|Nasu]]
[[Category:Researcher|Nasu]]
'''Yu Nasu''', (那須悠)<br/>
a Japanese computer scientist and [[Shogi]] programmer.
While affiliated with the [https://en.wikipedia.org/wiki/Tokyo_Institute_of_Technology Tokyo Institute of Technology] <ref>[https://www.researchgate.net/scientific-contributions/69800429_Yu_Nasu Yu Nasu's research works | Tokyo Institute of Technology, Tokyo (TITech) and other places], [https://en.wikipedia.org/wiki/ResearchGate ResearchGate]</ref>,
and the ''Knowledge Media Laboratory'', [https://en.wikipedia.org/wiki/Toshiba Toshiba],
his research focused on [https://en.wikipedia.org/wiki/Natural_language_processing#Statistical_natural_language_processing_(SNLP) natural language processing],
[https://en.wikipedia.org/wiki/Speech_recognition speech recognition] and [https://en.wikipedia.org/wiki/Speech_synthesis speech synthesis] as application of [https://en.wikipedia.org/wiki/Hidden_Markov_model hidden Markov model] and [[Neural Networks|neural networks]] <ref>[https://dblp.org/pers/hd/o/Ohtani:Yamato Yamato Ohtani], [[Yu Nasu]], [https://dblp.org/pers/hd/m/Morita:Masahiro Masahiro Morita], [https://dblp.org/pers/hd/a/Akamine:Masami Masami Akamine] ('''2015'''). ''[https://www.semanticscholar.org/paper/Emotional-transplant-in-statistical-speech-based-on-Ohtani-Nasu/5d6c1846bef6e8f796a84f6d7a381fdcffe1e1dd Emotional transplant in statistical speech synthesis based on emotion additive model]''. [https://dblp.org/db/conf/interspeech/interspeech2015.html#OhtaniNMA15 INTERSPEECH 2015]</ref>.
=Shogi=
Along with [[Hisayori Noda]] (Nodchip), [[Jun Okabe]], [[Takahiro Suzuki]], and [[Masatoshi Hidaka]],
Yu Nasu is member of ''The Minstrel's Ballad: Tanuki's Reign''
<ref>[https://groups.google.com/d/msg/shogi-l/-fO7GP6Zzww/8pG4UYeNAAAJ WCSC26 participation list] by [[Reijer Grimbergen]], [https://groups.google.com/forum/#!forum/shogi-l SHOGI-L], April 08, 2016</ref>
<ref>[https://groups.google.com/d/msg/shogi-l/v-tznD0IQe0/37KYlSYtAgAJ The 27th World Computer Shogi Championship: participant list] by [[Takenobu Takizawa]], [https://groups.google.com/forum/#!forum/shogi-l SHOGI-L], April 17, 2017</ref>
and subsequently the ''Ziosoft Computer Shogi Club'', developing the Shogi playing entities ''the end of genesis T.N.K.evolution turbo type D''
<ref>[http://www2.computer-shogi.org/wcsc28/ 第28回世界コンピュータ将棋選手権 wcsc28]</ref>
<ref>[https://www.uuunuuun.com/single-post/2019/05/28/Installation-instruction-of-shogi-engines-v2019-May Installation instruction of shogi engines], May 28, 2019</ref>
and the [[WCSC29|29th World Computer Shogi Champion]] <ref>[http://www2.computer-shogi.org/wcsc29/ 第29回世界コンピュータ将棋選手権 wcsc29]</ref> [[YaneuraOu]] <ref>[http://yaneuraou.yaneu.com/ やねうら王 公式サイト | コンピューター将棋 やねうら王 公式サイト]</ref> <ref>[https://github.com/yaneurao/YaneuraOu GitHub - yaneurao/YaneuraOu: YaneuraOu is the World's Strongest Shogi engine(AI player), WCSC29 1st winner, educational and USI compliant engine]</ref>.
=NNUE=
In 2018, Yu Nasu introduced a new [[Evaluation Function|evaluation function]] based on a shallow [[Neural Networks|neural network]]
whose heavily overparametrized input layer outputs were [[Incremental Updates|incremental updated]] in [[Make Move|make]] and [[Unmake Move|unmake move]].
This approach, dubbed [[NNUE]] (ƎUИИ Efficiently Updatable Neural Networks), turned out to become extremely powerful.
NNUE was used along with a [[Stockfish]] based Shogi adaptation in [[YaneuraOu]], as well in other Shogi playing entities such as
[[Kristallweizen-kai]] <ref>[https://github.com/Tama4649/Kristallweizen/ GitHub - Tama4649/Kristallweizen: 第29回世界コンピュータ将棋選手権 準優勝のKristallweizenです。]</ref>,
apparently with superhuman [[AlphaZero]] strength <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=72754 The Stockfish of shogi] by [[Larry Kaufman]], [[CCC]], January 07, 2020</ref>.
YaneuraOu team member [[Hisayori Noda]] aka Nodchip proved that Nasu's idea also works well in [[Chess|western chess]], yielding to [[Stockfish NNUE]].
=Selected Publications=
<ref>[https://dblp.org/pers/n/Nasu:Yu.html dblp: Yu Nasu]</ref>
* [[Yu Nasu]], [https://dblp.org/pers/hd/s/Shinoda:Koichi Koichi Shinoda], [https://dblp.org/pers/hd/f/Furui:Sadaoki Sadaoki Furu] ('''2011'''). ''[https://ieeexplore.ieee.org/abstract/document/5947432 Cross-Channel Spectral Subtraction for meeting speech recognition]''. [https://dblp.org/db/conf/icassp/icassp2011.html#NasuSF11 ICASSP 2011]
* [https://dblp.org/pers/hd/y/Yokoyama:Ryo Ryo Yokoyama], [[Yu Nasu]], [https://dblp.org/pers/hd/s/Shinoda:Koichi Koichi Shinoda], [https://dblp.org/pers/hd/i/Iwano:Koji Koji Iwano] ('''2012'''). ''[https://www.semanticscholar.org/paper/Overlapped-Speech-Detection-in-Meeting-Using-and-Yokoyama-Nasu/862c1571c47ca77ce5f227b47eef77a35c264a53 Overlapped Speech Detection in Meeting Using Cross-Channel Spectral Subtraction and Spectrum Similarity]''. [https://dblp.org/db/conf/interspeech/interspeech2012.html INTERSPEECH 2012]
* [https://dblp.org/pers/hd/o/Ohtani:Yamato Yamato Ohtani], [[Yu Nasu]], [https://dblp.org/pers/hd/m/Morita:Masahiro Masahiro Morita], [https://dblp.org/pers/hd/a/Akamine:Masami Masami Akamine] ('''2015'''). ''[https://www.semanticscholar.org/paper/Emotional-transplant-in-statistical-speech-based-on-Ohtani-Nasu/5d6c1846bef6e8f796a84f6d7a381fdcffe1e1dd Emotional transplant in statistical speech synthesis based on emotion additive model]''. [https://dblp.org/db/conf/interspeech/interspeech2015.html#OhtaniNMA15 INTERSPEECH 2015] <ref>[https://en.wikipedia.org/wiki/Hidden_semi-Markov_model hidden semi-Markov model from Wikipedia]</ref> <ref>[https://en.wikipedia.org/wiki/Kernel_eigenvoice Kernel eigenvoice from Wikipedia]</ref>
* [[Yu Nasu]] ('''2018'''). ''ƎUИИ Efficiently Updatable Neural-Network based Evaluation Functions for Computer Shogi''. Ziosoft Computer Shogi Club, [https://github.com/ynasu87/nnue/blob/master/docs/nnue.pdf pdf], [https://www.apply.computer-shogi.org/wcsc28/appeal/the_end_of_genesis_T.N.K.evolution_turbo_type_D/nnue.pdf pdf] (Japanese with English abstract)
=External Links=
* [https://www.researchgate.net/scientific-contributions/69800429_Yu_Nasu Yu Nasu's research works | Tokyo Institute of Technology, Tokyo (TITech) and other places], [https://en.wikipedia.org/wiki/ResearchGate ResearchGate]
* [http://yaneuraou.yaneu.com/ やねうら王 公式サイト | コンピューター将棋 やねうら王 公式サイト] (YaneuraOu)
* [https://github.com/yaneurao/YaneuraOu GitHub - yaneurao/YaneuraOu: YaneuraOu is the World's Strongest Shogi engine(AI player), WCSC29 1st winner, educational and USI compliant engine]
=References=
<references />
'''[[People|Up one level]]'''
[[Category:Shogi Programmer|Nasu]]
[[Category:Researcher|Nasu]]
