AllPaper of Masayuki Ohzeki Kyoto University

Current Study

情報統計力学	Comparison between minimum probability flow and pseudo likelihood maximization in decimation algorithm Masayuki Ohzeki to be submitted to JPSJ
情報統計力学	Revisit to trade off in noisy compressed sensing Masayuki Ohzeki to be submitted to JPSJ
画像処理	Learning of Potts prior and its application to anatomical labeling Masayuki Ohzeki and Utako Yamamoto to be submitted to JPSJ
情報統計力学	TBA Xu Yingying, Masayuki Ohzeki and Yoshiyuki Kabashima

2016

ネットワーク	Hysteretic transition of coarse-grained power grid model on small-world network Eiichi Sasaki, Masayuki Ohzeki, Yoshito Ohta submitted to JPSJ arXiv:nlin.AO.1501.06959
統計力学	TBA Akihisa Ichiki and Masayuki Ohzeki to appear soon
機械学習	TBA Masayuki Ohzeki, Muneki Yasuda, and Akihisa Ichiki to appear soon
学習理論	Query learning by greedy algorithm Masayuki Ohzeki and Yoshiyuki Kabashima work in progress
学習理論	Variable selection by greedy algorithm Masayuki Ohzeki, Xu Yingying and Yoshiyuki Kabashima to appear soon
量子情報	TBA Masayuki Ohzeki to appear soon
量子情報	Avoiding negative sign problem in simulation of quantum annealing Masayuki Ohzeki submitted
情報統計力学	Statistical mechanical models of the integer factorization problem Chihiro Nakajima and Masayuki Ohzeki submitted to JPSJ arXiv:1605.01310
統計力学	Conflict between fastest relaxation of a Markov process and detailed balance condition Kazutaka Takahashi and Masayuki Ohzeki Physical Review E 93 (2016) 012129 arXiv:1509.08212

2015

統計力学	Langevin dynamics neglecting detailed balance condition Masayuki Ohzeki and Akihisa Ichiki Physical Review E, Vol. 92 (2015) 012105 arXiv:cond-mat/1307.0434
統計力学	Full-order fluctuation-dissipation relation for a class of nonequilibrium steady states Akihisa Ichiki and Masayuki Ohzeki Phys. Rev. E 91, 062105 (2015) arXiv:cond-mat/1503.04504
情報統計力学	L1-regularized Boltzmann machine learning by majorizer minimization Masayuki Ohzeki J. Phys. Soc. Jpn. 84, 054801 (2015) arxiv:cond-mat/1503.03132
画像処理	Inverse Renormalization Group Transformation in Bayesian Image Segmentations Kazuyuki Tanaka, Shun Kataoka, Muneki Yasuda and Masayuki Ohzeki J. Phys. Soc. Jpn. 84, 045001 (2015) arXiv:cs.CV/1501.00834
学習理論	Statistical-mechanical analysis on pre-training and fine tuning in deep learning Masayuki Ohzeki J. Phys. Soc. Jpn., 84, 034003 (2015) arXiv.stat.ML/1501.04413
スピングラス	High-precision phase diagram of spin glasses from duality analysis with real-space renormalization and graph polynomials Masayuki Ohzeki and Jesper Lykke Jacobsen J. Phys. A: Math. Theor. 48 095001 (2015) arXiv:cond-mat/1410.0166 Selected as IOP select
情報統計力学	Detection of cheating by decimation algorithm Shogo Yamanaka, Masayuki Ohzeki, and Aurelien Decelle J. Phys. Soc. Jpn. 84, 024801 (2015) arXiv:stat.ml/1410.3596 新聞報道：2015/01/16付け朝日新聞34面社会2にてデジタル版（人工知能でカンニングを発見　京大などがプログラム開発） 2015/1/19 TBSテレビ【あさチャン！】＜あさチャン！朝刊チェック＞「人工知能使いカンニングを発見」京都大学広報（機械学習によるカンニングの検出技術の開発）人民日報：2015年1月21日人民網日本語版（日本の専門家、カンニングを発見するプログラムを開発）人民網中国語版（日本专家利用人工智能开发新程序使作弊无处可逃）中国新聞網（日本专家利用人工智能开发新程序使作弊无处可逃）私塾界（人工知能でカンニングを発見　京大などのグループ）財経新聞：2015年1月25日（京大、機械学習によってカンニングを自動的に検出する技術を開発）リセマム（機械学習の手法でカンニングを自動的に検出…京都大の研究成果） 2015年1月のTop 20 most downloaded papersの中で3番目になりました． 2015/2/26発売ニュートンプレスNewton4月号Focusにて掲載． 2015/3/27 NHK【おはよう日本】＜7時台ニュース＞「衝撃のカンニングー背景は」 2015/6/15発売太田出版ケトルにて研究成果報道

2013

統計力学	Violation of detailed balance accelerates relaxation Akihisa Ichiki and Masayuki Ohzeki Phys. Rev. E 88, 020101(R) (2013) e-arXiv:cond-mat/1306.6131
統計力学	Nonequilibrium work relation in macroscopic system Yuki Sughiyama and Masayuki Ohzeki J. Stat. Mech. (2013) P04012 e-arXiv:cond-mat/1110.2088
量子情報	Measurement-Based Quantum Computation on Symmetry Breaking Thermal States Keisuke Fujii, Yosifumi Nakata, Masayuki Ohzeki, and Mio Murao Phys. Rev. Lett. 110, 120502 (2013) Selected as Editor's Suggestion arXiv:1209.1265 （報道：マイナビニュース）
古典スピン系	Duality analysis and its application: bond percolation Masayuki Ohzeki Phys. Rev. E 87, 012137 (2013) arXiv:1211.1521

2012

スピングラス	Fluctuation Theorems on Nishimori Line Masayuki Ohzeki Phys. Rev. E 86, 061110 (2012) arXiv:1209.1871
量子情報	Duality analysis on random planar lattice Masayuki Ohzeki, and Keisuke Fujii Phys. Rev. E 86, 051121 (2012) arXiv:1209.3500
量子情報	Error threshold estimations in surface code with loss of qubits Masayuki Ohzeki Phys. Rev. A 85, 060301(R) (2012). arXiv:1202.2593 京都大学プレスリリース（報道：マイナビニュース、日経プレスリリース、UNN関西学生報道連盟）
量子情報	Strong Resilience of Topological Codes to Depolarization Hector Bombin, Ruben S. Andrist, Masayuki Ohzeki, Helmut G. Katzgraber and Miguel Angel Martin-Delgado Phys. Rev. X, 2 (2012) 021004 arXiv:1202.1852 featured in Viewpoint (Physics 5, 50 (2012))

2011

スピングラス	Nonequilibrium work on spin glasses in transverse and random fields Masayuki Ohzeki, Hitoshi Katsuda, and Hidetoshi Nishimori J. Phys. Soc. Jpn. 80 (2011) 084002 e-arXiv:cond-mat/1104.0484
最適化問題	Jarzynski equality for an energy-controlled system Hitoshi Katsuda, and Masayuki Ohzeki J. Phys. Soc. Jpn. 80 (2011) 045003 e-arXiv:cond-mat/1101.3826
スピングラス	Universality in phase boundary slopes for spin glasses on self dual lattices Masayuki Ohzeki, Creighton K. Thomas, Helmut G Katzgraber, Hector Bombin, and Miguel Angel Martin-Delgado J. Stat. Mech. (2011) P02004 e-arXiv:cond-mat/1009.6015
量子情報	Quantum annealing: An introduction and new developments Masayuki Ohzeki, and Hidetoshi Nishimori J Comp. and Theor. Nanoscience, 8. (2011) 963 e-arXiv:cond-mat/1006.1696

2010

量子情報	Quantum Annealing with Jarzynski Equality Masayuki Ohzeki Phys. Rev. Lett. 105, 050401 (2010) e-arXiv:quant-phys/1007.1277
スピングラス	Nonequilibrium Relations for Spin Glasses with Gauge Symmetry Masayuki Ohzeki, and Hidetoshi Nishimori 科学新聞: 科学新聞2010年9月17日号 News and Comments: K. Hukushima: JPSJ Online—News and Comments [August 19, 2010]. ＪＰＳのＨＰ上での紹介記事 J. Phys. Soc. Jpn. 79 (2010) 084003. e-arXiv:cond-mat/1004.2389 英文紹介文 Spin Glass, a disordered magnetic system, exhibits a drastic slowdown of relaxation processes toward equilibirum in low-temperature regions. This dynamical aspect of spin glasses implies the difficulty to visit all the local minima of the free energy by thermal fluctuations. That reminds us of a scene like the typical Hollywood movies that an adventurer explores all the abysmal gorges to find the treasure at the bottom of the canyon. The present study has unveiled a hidden way to reach the equilibrium state by use of a special symmetry in spin glasses with the Jarzynski equality. We hope the grace of the nonequilibrium physics might help the adventurer.

量子情報

Quantum Annealing with Jarzynski Equality

Masayuki Ohzeki

LinkIcon Phys. Rev. Lett. 105, 050401 (2010)

LinkIcon e-arXiv:quant-phys/1007.1277

スピングラス

Nonequilibrium Relations for Spin Glasses with Gauge Symmetry

Masayuki Ohzeki, and Hidetoshi Nishimori

LinkIcon 科学新聞:

科学新聞2010年9月17日号

LinkIcon News and Comments: K. Hukushima: JPSJ Online—News and Comments [August 19, 2010].

ＪＰＳのＨＰ上での LinkIcon 紹介記事

LinkIcon J. Phys. Soc. Jpn. 79 (2010) 084003.

LinkIcon e-arXiv:cond-mat/1004.2389

英文紹介文

Spin Glass, a disordered magnetic system, exhibits a drastic slowdown of relaxation processes toward equilibirum in low-temperature regions.

This dynamical aspect of spin glasses implies the difficulty to visit all the local minima of the free energy by thermal fluctuations.

That reminds us of a scene like the typical Hollywood movies that an adventurer explores all the abysmal gorges to find the treasure at the bottom of the canyon.

The present study has unveiled a hidden way to reach the equilibrium state by use of a special symmetry in spin glasses with the Jarzynski equality.

We hope the grace of the nonequilibrium physics might help the adventurer.

2009

量子情報	Accuracy threshold of topological color codes on the hexagonal and square-octagonal lattices Masayuki Ohzeki Phys. Rev. E 80 (2009) 011141 e-arXiv: cond-mat/0903.2102 Virtual Journal of Nanoscale Science & Technology, Vol. 20 (2009). Virtual Journal of Quantum Information, Vol. 9 (2009).
スピングラス	Analytical evidence for the absence of spin glass transition on self-dual lattices Masayuki Ohzeki, and Hidetoshi Nishimori J. Phys. A: Math. Theor. 42 (2009) 332001 e-arXiv: cond-mat/0905.3623
スピングラス	Locations of multicritical points for spin glasses on regular lattices Masayuki Ohzeki, Phys. Rev. E 79, (2009) 021129 e-arXiv: cond-mat/0811.0464

量子情報

Accuracy threshold of topological color codes on the hexagonal and square-octagonal lattices

Masayuki Ohzeki

LinkIcon Phys. Rev. E 80 (2009) 011141

LinkIcon e-arXiv: cond-mat/0903.2102

Virtual Journal of Nanoscale Science & Technology, Vol. 20 (2009).

Virtual Journal of Quantum Information, Vol. 9 (2009).

スピングラス

Analytical evidence for the absence of spin glass transition on self-dual lattices

Masayuki Ohzeki, and Hidetoshi Nishimori

LinkIcon J. Phys. A: Math. Theor. 42 (2009) 332001

LinkIcon e-arXiv: cond-mat/0905.3623

スピングラス

Locations of multicritical points for spin glasses on regular lattices

Masayuki Ohzeki,

LinkIcon Phys. Rev. E 79, (2009) 021129

LinkIcon e-arXiv: cond-mat/0811.0464

2008

スピングラス	Multicritical points for the spin glass models on hierarchical lattices Masayuki Ohzeki, Hidetoshi Nishimori and A. Nihat Berker, Phys. Rev. E 77, (2008) 061116, e-arXiv: cond-mat/0802.2760

スピングラス

Multicritical points for the spin glass models on hierarchical lattices

Masayuki Ohzeki, Hidetoshi Nishimori and A. Nihat Berker,

LinkIcon Phys. Rev. E 77, (2008) 061116,

LinkIcon e-arXiv: cond-mat/0802.2760

2007

スピングラス	Multicritical Points of Potts Spin Glasses on the Triangular Lattice Masayuki Ohzeki, J. Phys. Soc. Jpn. 76, (2007) 114003(OPEN ACCESS), e-arXiv: cond-mat/0706.2052

スピングラス

Multicritical Points of Potts Spin Glasses on the Triangular Lattice

Masayuki Ohzeki,

LinkIcon J. Phys. Soc. Jpn. 76, (2007) 114003(OPEN ACCESS),

LinkIcon e-arXiv: cond-mat/0706.2052

2006

古典スピン系	Internal energy of the Potts model on the triangular lattic with two- and three-body interactions Masayuki Ohzeki and Hidetoshi Nishimori, J. Phys. Soc. Jpn. 75, (2006) 114003(OPEN ACCESS), e-arXiv: cond-mat/0605688
スピングラス	Location of the multicritical point of the Ising spin glass on the triangular and hexagonal lattices Hidetoshi Nishimori and Masayuki Ohzeki, J. Phys. Soc. Jpn. 75, (2006) 034004(OPEN ACCESS), e-arXiv: cond-mat/0601356

古典スピン系

Internal energy of the Potts model on the triangular lattic with two- and three-body interactions

Masayuki Ohzeki and Hidetoshi Nishimori,

LinkIcon J. Phys. Soc. Jpn. 75, (2006) 114003(OPEN ACCESS),

LinkIcon e-arXiv: cond-mat/0605688

スピングラス

Location of the multicritical point of the Ising spin glass on the triangular and hexagonal lattices

Hidetoshi Nishimori and Masayuki Ohzeki,

LinkIcon J. Phys. Soc. Jpn. 75, (2006) 034004(OPEN ACCESS),

LinkIcon e-arXiv: cond-mat/0601356

Brand-New Paper
Recent several papers

Full Paper
Proceeding
Article
Patents
Thesis