教員紹介

教員紹介参照＜参照＞

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教員情報

教員名増山　博之教員名カナマスヤマ　ヒロユキ

英字
所属経済経営学部経済経営学科

詳細情報

学部・コース等

研究科・専攻等

職位教授

専攻分野数理科学(応用確率論, 応用線形代数, 行列解析, ネットワーク科学)

最終学歴・学位博士(情報学・京都大学)

研究テーマパフォーマンス評価に関する数理的手法の開発
大規模組合せ最適化問題に対する確率的探索法の性能評価と停止判断法の開発
マルコフ連鎖のエルゴード解析，漸近解析，切断誤差解析

研究キーワードパフォーマンス分析, マルコフ解析, 最適化

研究業績・著者・論文、その他それに準じる業績 Hiroyuki Masuyama, ``A new matrix-infinite-product-form solution for upper block-Hessenberg Markov chains and its quasi-algorithmic constructibility," Advances in Applied Probability, vol. 55, no. 1, 1-28, March 2023.

Katsuhisa Ouchi and Hiroyuki Masuyama, ``Level-wise subgeometric convergence of the level-increment truncation approximation of M/G/1-type Markov chains," Journal of the Operations Research Society of Japan, vol. 65, no. 4, 198-215, 2022.

Hiroyuki Masuyama, ``Subexponential asymptotics of asymptotically block-Toeplitz and upper block-Hessenberg Markov chains," Queueing Systems, vol. 102, nos 1-2 (Special issue: Masakiyo Miyazawa---75), 175-217, 2022.

Tatsuaki Kimura and Hiroyuki Masuyama, ``A heavy-traffic-limit formula for the moments of the stationary distribution in GI/G/1-type Markov chains," Operations Researach Letters, vol. 49, no. 6, 862-867, 2021.

Yutaka Sakuma, Hiroyuki Masuyama, and Emiko Fukuda, ``A discrete-time single-server Poisson queueing game: Equilibria simulated by an agent-based model," European Journal of Operational Research, vol. 283, no. 1, pp. 253-264, 2020.

Yoshiaki Inoue, Hiroyuki Masuyama, Takine Tetsuya, and Toshiyuki Tanaka, ``A general formula for the stationary distribution of the age of information and its application to single-server queues," IEEE Transactions on Information Theory, vol. 65, no. 12, pp. 8305-8324, 2019.

Hiroyuki Masuyama, ``A sequential update algorithm for computing the stationary distribution vector in upper block-Hessenberg Markov chains," Queueing Systems, vol. 92, nos. 1-2, pp. 173-200, 2019.

Yuanyuan Liu, Wendi Li, and Hiroyuki Masuyama, ``Error bounds for augmented truncation approximations of continuous-time Markov chains," Operations Research Letters, vol. 46, no. 4, pp. 409-413, 2018.

Tsuguhito Hirai, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Performance optimization of parallel-distributed processing with checkpointing for cloud environment,'' Journal of Industrial and Management Optimization, vol. 14, no. 4, pp. 1423-1442, 2018.

Hiroyuki Masuyama, ``Error bounds for last-column-block-augmented truncations of block-structured Markov chains," Journal of the Operations Research Society of Japan, vol. 60, no. 3, pp. 271-320, 2017.

Tatsuaki Kimura, Hiroyuki Masuyama, and Yutaka Takahashi, ``Light-tailed asymptotics of GI/G/1-type Markov chains," Journal of Industrial and Management Optimization, vo. 13, no. 4, pp. 2093-2146, 2017.

Hiroyuki Masuyama, ``Continuous-time block-monotone Markov chains and their block-augmented truncations," Linear Algebra and its Applications, vol. 514, no. 1, pp. 105-150, 2017.

Hiroyuki Masuyama, ``Error bounds for augmented truncations of discrete-time block-monotone Markov chains under subgeometric drift conditions," SIAM Journal on Matrix Analysis and Applications, vol. 37, no. 3, pp. 877-910, 2016.

Tsuguhito Hirai, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Performance analysis of task replication in large-scale parallel-distributed processing: an extreme value theory approach,'' Journal of the Operations Research Society of Japan, vol. 59, no. 2, pp. 174-194, 2016.

Masataka Kato, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Effect of energy-saving server scheduling on power consumption for large-scale data centers,'' Journal of Industrial and Management Optimization, vol. 12, no. 2, pp. 667-685, 2016.

Hiroyuki Masuyama, ``A sufficient condition for the subexponential asymptotics of GI/G/1-type Markov chains with queueing applications," Annals of Operations Research, vo. 247, no. 1, pp. 65-95, 2016.

Kyosuke Hashimoto, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Performance analysis of backup-task scheduling with deadline time in cloud computing,'' Journal of Industrial and Management Optimization, vol. 11, no. 3, pp. 867-886, 2015.

Hiroyuki Masuyama, ``Error bounds for augmented truncations of discrete-time block-monotone Markov chains under geometric drift conditions," Advances in Applied Probability, vol. 47, no. 1, pp. 83-105, 2015.

Haruki Katayama, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Effect of spectrum sensing overhead on performance for cognitive radio networks with channel bonding,'' Journal of Industrial and Management Optimization, vol. 10, no. 1, pp. 21-40, 2014.

Tsuguhito Hirai, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Performance analysis of large-scale parallel-distributed processing with backup tasks for cloud computing,'' Journal of Industrial and Management Optimization, vol. 10, no. 1, pp. 113-129, 2014.

Hiroyuki Masuyama, ``Tail asymptotics for cumulative processes sampled at heavy-tailed random times with applications to queueing models in Markovian environments," Journal of the Operations Research Society of Japan, vol. 56, no. 4, pp. 257-308, 2013.

Kota Kato, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Block-level success and loss runs for streaming services over wired-wireless networks,'' Journal of the Operations Research Society of Japan, vol. 56, no. 2, pp. 69-91, 2013.

Tatsuaki Kimura, Hiroyuki Masuyama, and Yutaka Takahashi, ``Subexponential asymptotics of the stationary distributions of GI/G/1-type Markov chains," Stochastic Models, vol. 29, no. 2, pp. 190-239, 2013.

Takashi Yazane, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Effect of network-coding overhead on end-to-end throughput for multihop wireless networks," Performance Evaluation, vol. 70, no. 1, pp. 14-27, 2013.

Yasuharu Konishi, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Performance analysis of dynamic spectrum handoff scheme with variable bandwidth demand of secondary users for cognitive radio networks,'' Wireless Networks, vol. 19, no.5, pp. 607-617, 2013.

Tuan Phung-Duc, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``A matrix continued fraction approach to multiserver retrial queues," Annals of Operations Research, vol. 202, no. 1, pp. 161-183, 2013.

Marino Mitsumura, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Effect of application-layer rate-control mechanism on video quality for streaming services," Journal of Industrial and Management Optimization, vol. 8, no. 4, pp. 807-819, 2012.

Tatsuaki Kimura, Hiroyuki Masuyama, and Yutaka Takahashi, ``Heavy-traffic asymptotics for stationary GI/G/1-type Markov chains," Operations Research Letters, vol. 40, no. 3, pp. 185-189, 2012.

Sho Nanao, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Effect of node churn on frame interval for peer-to-peer video streaming with data-block synchronization mechanism," Peer-to-Peer Networking and Applications, vol. 5, no. 3, pp. 244-256, 2012.

Kazuhiko Kuraya, Hiroyuki Masuyama, and Shoji Kasahara, ``Load distribution performance of super-node based peer-to-peer communication networks: A nonstationary Markov chain approach," Numerical Algebra, Control and Optimization, vol. 1, no. 4, pp. 593-610, 2011.

Shuichiro Senda, Hiroyuki Masuyama, and Shoji Kasahara, ``A stochastic fluid model for on-demand peer-to-peer streaming services," Numerical Algebra, Control and Optimization, vol. 1, no. 4, pp. 611-626, 2011.

Tomoya Tainaka, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Performance analysis of burst transmission mechanism for IEEE 802.11-based multi-hop wireless LANs," IEEE Transactions on Wireless Communications, vol. 10, no. 9, pp. 2908-2917, 2011.

Hiroyuki Masuyama, ``Subexponential asymptotics of the stationary distributions of M/G/1-type Markov chains," European Journal of Operational Research, vol. 213, no. 3, pp. 509-516, 2011.

Sho Nanao, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Queueing analysis of data block synchronization mechanism in peer-to-peer based video streaming system," Journal of Industrial and Management Optimization, vol. 7, no. 3, pp. 699-716, 2011.

Tatsuaki Kimura, Kentaro Daikoku, Hiroyuki Masuyama, and Yutaka Takahashi, ``Light-tailed asymptotics of stationary tail probability vectors of Markov chains of M/G/1 type," Stochastic Models, vol. 26, no. 4, pp. 505-548, 2010.

Hozumi Kawanami, Hiroyuki Masuyama, Takuji Tachibana, Shoji Kasahara, and Yutaka Takahashi, ``Burst transmission algorithm to improve packet level performance in contention-free slotted OBS networks,'' Photonic Network Communications, vol. 20, vol. 1, pp. 54-63, 2010.

Tuan Phung-Duc, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``State-dependent M/M/c/c+r retrial queues with Bernoulli abandonment," Journal of Industrial and Management Optimization, vol. 6, no. 3, pp. 517-540, 2010.

Hiroyuki Masuyama, Bin Liu, and Tetsuya Takine, ``Subexponential asymptotics of the BMAP/GI/1 queue," Journal of the Operations Research Society of Japan, vol. 52, no. 4, pp. 377-401, 2009.

Kazuhiko Kuraya, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Decentralized user information management systems for peer-to-peer communication networks: An approach by nonstationary peer-population process," Ubiquitous Computing and Communication Journal, Special Issue CSNDSP 2008, vol. CSNDSP, September 2009.
URL:http://www.ubicc.org/files/pdf/UBICC_draft_kuraya_322.pdf

Tuan Phung-Duc, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``M/M/3/3 and M/M/4/4 retrial queues," Journal of Industrial and Management Optimization, vol. 5, no. 3, pp. 431-451, 2009.

Tomoya Tainaka, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``A Markovian approach to per-flow throughput unfairness in IEEE 802.11 multihop wireless networks," Journal of Industrial and Management Optimization, vol. 5, no. 3, pp. 493-510, 2009.

Shun Muraoka, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``FEC recovery performance for video streaming services over wired-wireless networks," Performance Evaluation, vol. 66, no. 6, pp. 327-342, 2009.

Tuan Phung-Duc, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Performance analysis of optical burst switched networks with limited-range wavelength conversion, retransmission and burst segmentation," Journal of the Operations Research Society of Japan, vol. 52, no. 1, pp. 58-74, 2009.

Yusuke Uchida, Sei Sunahara, Eisaburo Itakura, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Proactive retransmission and buffer management for layered video transmission over wireless channel," IEICE Transactions on Communications, vol. E91-B, no. 9, pp. 2897-2906, 2008.

Hiroyuki Masuyama and Tetsuya Takine, ``Multiclass Markovian fluid queues," Queueing Systems, vol. 56, nos.3-4, pp. 143-155, 2007.

Kentaro Daikoku, Hiroyuki Masuyama, Tetsuya Takine, and Yutaka Takahashi, ``Algorithmic computation of the transient queue length distribution in the BMAP/D/c queue," Journal of the Operations Research Society of Japan, vol. 50, no. 1, pp. 55-72, 2007.

Hiroyuki Masuyama and Tetsuya Takine, ``Algorithmic computation of the time-dependent solution of structured Markov chains and its application to queues," Stochastic Models, vol. 21, no. 4, pp. 885-912, 2005.

Hiroyuki Masuyama and Tetsuya Takine, ``Matrix product-form solutions for LCFS preemptive service single-server queues with batch Markovian arrival streams," Stochastic Models, vol. 21, nos.2-3, pp. 551-577, 2005.

Hiroyuki Masuyama and Tetsuya Takine, ``Sojourn time distribution in a MAP/M/1 processor-sharing queue," Operations Research Letters, vol. 31, no. 5, pp. 406-412, 2003.

Hiroyuki Masuyama and Tetsuya Takine, ``Stationary queue length in a FIFO single server queue with service interruptions and multiple batch Markovian arrival streams," Journal of the Operations Research Society of Japan, vol. 46, no. 3, pp. 319-341, 2003.

Hiroyuki Masuyama and Tetsuya Takine, ``Analysis and computation of the joint queue length distribution in a FIFO single-server queue with multiple batch Markovian arrival streams," Stochastic Models, vol. 19, no. 3, pp. 349-381, 2003.

Hiroyuki Masuyama and Tetsuya Takine, ``Analysis of an infinite-server queue with batch Markovian arrival streams," Queueing Systems, vol. 42, no. 3, pp. 269-296, 2002.

受賞日本OR学会待ち行列研究部会第9回論文賞(2021年度)
日本OR学会待ち行列研究部会第8回論文賞(2020年度)
日本OR学会第7回研究賞(2017年度)
日本OR学会待ち行列研究部会第4回論文賞(2015年度)
日本OR学会待ち行列研究部会第3回論文賞(2014年度)
日本OR学会第4回論文賞(2014年度)
日本OR学会第2回文献賞奨励賞(2007年度)

主な学会活動日本オペレーションズ・リサーチ(OR)学会

社会等との関わり

個人のURL

担当科目基礎ゼミナール
 経営数理
 基礎数学2
経営学コース特別講義（データ科学のための線形代数）
演習（増山）
演習（増山）
卒業論文（増山）
経営数理
 基礎数学2
経営学コース特別講義（データ科学のための線形代数）
演習（増山）
演習（増山）
卒業論文（増山）
応用線形代数
 経営学特別演習（データサイエンス）
研究指導（増山）
研究指導（増山）
経営科学特殊研究
 経営科学特殊演習
 経営科学特別研究
 経営科学特別演習
 特別研究（増山）
特別研究（増山）
特別研究（増山）
特別研究（増山）
経営科学特殊研究
 経営科学特殊研究

オフィスアワー

研究室

内線番号

メールアドレス masuyama●tmu.ac.jp
（メールを送信する場合は●を@に変換してください）

研究室サイト等 https://www.comp.tmu.ac.jp/masuyama/

researchmap 過去の研究業績等(researchmap)

教員情報
教員名	増山　博之	教員名カナ	マスヤマ　ヒロユキ
英字		所属	経済経営学部経済経営学科

詳細情報
学部・コース等
研究科・専攻等
職位	教授
専攻分野	数理科学(応用確率論, 応用線形代数, 行列解析, ネットワーク科学)
最終学歴・学位	博士(情報学・京都大学)
研究テーマ	パフォーマンス評価に関する数理的手法の開発大規模組合せ最適化問題に対する確率的探索法の性能評価と停止判断法の開発マルコフ連鎖のエルゴード解析，漸近解析，切断誤差解析
研究キーワード	パフォーマンス分析, マルコフ解析, 最適化
研究業績・著者・論文、その他それに準じる業績	Hiroyuki Masuyama, ``A new matrix-infinite-product-form solution for upper block-Hessenberg Markov chains and its quasi-algorithmic constructibility," Advances in Applied Probability, vol. 55, no. 1, 1-28, March 2023. Katsuhisa Ouchi and Hiroyuki Masuyama, ``Level-wise subgeometric convergence of the level-increment truncation approximation of M/G/1-type Markov chains," Journal of the Operations Research Society of Japan, vol. 65, no. 4, 198-215, 2022. Hiroyuki Masuyama, ``Subexponential asymptotics of asymptotically block-Toeplitz and upper block-Hessenberg Markov chains," Queueing Systems, vol. 102, nos 1-2 (Special issue: Masakiyo Miyazawa---75), 175-217, 2022. Tatsuaki Kimura and Hiroyuki Masuyama, ``A heavy-traffic-limit formula for the moments of the stationary distribution in GI/G/1-type Markov chains," Operations Researach Letters, vol. 49, no. 6, 862-867, 2021. Yutaka Sakuma, Hiroyuki Masuyama, and Emiko Fukuda, ``A discrete-time single-server Poisson queueing game: Equilibria simulated by an agent-based model," European Journal of Operational Research, vol. 283, no. 1, pp. 253-264, 2020. Yoshiaki Inoue, Hiroyuki Masuyama, Takine Tetsuya, and Toshiyuki Tanaka, ``A general formula for the stationary distribution of the age of information and its application to single-server queues," IEEE Transactions on Information Theory, vol. 65, no. 12, pp. 8305-8324, 2019. Hiroyuki Masuyama, ``A sequential update algorithm for computing the stationary distribution vector in upper block-Hessenberg Markov chains," Queueing Systems, vol. 92, nos. 1-2, pp. 173-200, 2019. Yuanyuan Liu, Wendi Li, and Hiroyuki Masuyama, ``Error bounds for augmented truncation approximations of continuous-time Markov chains," Operations Research Letters, vol. 46, no. 4, pp. 409-413, 2018. Tsuguhito Hirai, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Performance optimization of parallel-distributed processing with checkpointing for cloud environment,'' Journal of Industrial and Management Optimization, vol. 14, no. 4, pp. 1423-1442, 2018. Hiroyuki Masuyama, ``Error bounds for last-column-block-augmented truncations of block-structured Markov chains," Journal of the Operations Research Society of Japan, vol. 60, no. 3, pp. 271-320, 2017. Tatsuaki Kimura, Hiroyuki Masuyama, and Yutaka Takahashi, ``Light-tailed asymptotics of GI/G/1-type Markov chains," Journal of Industrial and Management Optimization, vo. 13, no. 4, pp. 2093-2146, 2017. Hiroyuki Masuyama, ``Continuous-time block-monotone Markov chains and their block-augmented truncations," Linear Algebra and its Applications, vol. 514, no. 1, pp. 105-150, 2017. Hiroyuki Masuyama, ``Error bounds for augmented truncations of discrete-time block-monotone Markov chains under subgeometric drift conditions," SIAM Journal on Matrix Analysis and Applications, vol. 37, no. 3, pp. 877-910, 2016. Tsuguhito Hirai, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Performance analysis of task replication in large-scale parallel-distributed processing: an extreme value theory approach,'' Journal of the Operations Research Society of Japan, vol. 59, no. 2, pp. 174-194, 2016. Masataka Kato, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Effect of energy-saving server scheduling on power consumption for large-scale data centers,'' Journal of Industrial and Management Optimization, vol. 12, no. 2, pp. 667-685, 2016. Hiroyuki Masuyama, ``A sufficient condition for the subexponential asymptotics of GI/G/1-type Markov chains with queueing applications," Annals of Operations Research, vo. 247, no. 1, pp. 65-95, 2016. Kyosuke Hashimoto, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Performance analysis of backup-task scheduling with deadline time in cloud computing,'' Journal of Industrial and Management Optimization, vol. 11, no. 3, pp. 867-886, 2015. Hiroyuki Masuyama, ``Error bounds for augmented truncations of discrete-time block-monotone Markov chains under geometric drift conditions," Advances in Applied Probability, vol. 47, no. 1, pp. 83-105, 2015. Haruki Katayama, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Effect of spectrum sensing overhead on performance for cognitive radio networks with channel bonding,'' Journal of Industrial and Management Optimization, vol. 10, no. 1, pp. 21-40, 2014. Tsuguhito Hirai, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Performance analysis of large-scale parallel-distributed processing with backup tasks for cloud computing,'' Journal of Industrial and Management Optimization, vol. 10, no. 1, pp. 113-129, 2014. Hiroyuki Masuyama, ``Tail asymptotics for cumulative processes sampled at heavy-tailed random times with applications to queueing models in Markovian environments," Journal of the Operations Research Society of Japan, vol. 56, no. 4, pp. 257-308, 2013. Kota Kato, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Block-level success and loss runs for streaming services over wired-wireless networks,'' Journal of the Operations Research Society of Japan, vol. 56, no. 2, pp. 69-91, 2013. Tatsuaki Kimura, Hiroyuki Masuyama, and Yutaka Takahashi, ``Subexponential asymptotics of the stationary distributions of GI/G/1-type Markov chains," Stochastic Models, vol. 29, no. 2, pp. 190-239, 2013. Takashi Yazane, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Effect of network-coding overhead on end-to-end throughput for multihop wireless networks," Performance Evaluation, vol. 70, no. 1, pp. 14-27, 2013. Yasuharu Konishi, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Performance analysis of dynamic spectrum handoff scheme with variable bandwidth demand of secondary users for cognitive radio networks,'' Wireless Networks, vol. 19, no.5, pp. 607-617, 2013. Tuan Phung-Duc, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``A matrix continued fraction approach to multiserver retrial queues," Annals of Operations Research, vol. 202, no. 1, pp. 161-183, 2013. Marino Mitsumura, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Effect of application-layer rate-control mechanism on video quality for streaming services," Journal of Industrial and Management Optimization, vol. 8, no. 4, pp. 807-819, 2012. Tatsuaki Kimura, Hiroyuki Masuyama, and Yutaka Takahashi, ``Heavy-traffic asymptotics for stationary GI/G/1-type Markov chains," Operations Research Letters, vol. 40, no. 3, pp. 185-189, 2012. Sho Nanao, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Effect of node churn on frame interval for peer-to-peer video streaming with data-block synchronization mechanism," Peer-to-Peer Networking and Applications, vol. 5, no. 3, pp. 244-256, 2012. Kazuhiko Kuraya, Hiroyuki Masuyama, and Shoji Kasahara, ``Load distribution performance of super-node based peer-to-peer communication networks: A nonstationary Markov chain approach," Numerical Algebra, Control and Optimization, vol. 1, no. 4, pp. 593-610, 2011. Shuichiro Senda, Hiroyuki Masuyama, and Shoji Kasahara, ``A stochastic fluid model for on-demand peer-to-peer streaming services," Numerical Algebra, Control and Optimization, vol. 1, no. 4, pp. 611-626, 2011. Tomoya Tainaka, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Performance analysis of burst transmission mechanism for IEEE 802.11-based multi-hop wireless LANs," IEEE Transactions on Wireless Communications, vol. 10, no. 9, pp. 2908-2917, 2011. Hiroyuki Masuyama, ``Subexponential asymptotics of the stationary distributions of M/G/1-type Markov chains," European Journal of Operational Research, vol. 213, no. 3, pp. 509-516, 2011. Sho Nanao, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Queueing analysis of data block synchronization mechanism in peer-to-peer based video streaming system," Journal of Industrial and Management Optimization, vol. 7, no. 3, pp. 699-716, 2011. Tatsuaki Kimura, Kentaro Daikoku, Hiroyuki Masuyama, and Yutaka Takahashi, ``Light-tailed asymptotics of stationary tail probability vectors of Markov chains of M/G/1 type," Stochastic Models, vol. 26, no. 4, pp. 505-548, 2010. Hozumi Kawanami, Hiroyuki Masuyama, Takuji Tachibana, Shoji Kasahara, and Yutaka Takahashi, ``Burst transmission algorithm to improve packet level performance in contention-free slotted OBS networks,'' Photonic Network Communications, vol. 20, vol. 1, pp. 54-63, 2010. Tuan Phung-Duc, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``State-dependent M/M/c/c+r retrial queues with Bernoulli abandonment," Journal of Industrial and Management Optimization, vol. 6, no. 3, pp. 517-540, 2010. Hiroyuki Masuyama, Bin Liu, and Tetsuya Takine, ``Subexponential asymptotics of the BMAP/GI/1 queue," Journal of the Operations Research Society of Japan, vol. 52, no. 4, pp. 377-401, 2009. Kazuhiko Kuraya, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Decentralized user information management systems for peer-to-peer communication networks: An approach by nonstationary peer-population process," Ubiquitous Computing and Communication Journal, Special Issue CSNDSP 2008, vol. CSNDSP, September 2009. URL:http://www.ubicc.org/files/pdf/UBICC_draft_kuraya_322.pdf Tuan Phung-Duc, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``M/M/3/3 and M/M/4/4 retrial queues," Journal of Industrial and Management Optimization, vol. 5, no. 3, pp. 431-451, 2009. Tomoya Tainaka, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``A Markovian approach to per-flow throughput unfairness in IEEE 802.11 multihop wireless networks," Journal of Industrial and Management Optimization, vol. 5, no. 3, pp. 493-510, 2009. Shun Muraoka, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``FEC recovery performance for video streaming services over wired-wireless networks," Performance Evaluation, vol. 66, no. 6, pp. 327-342, 2009. Tuan Phung-Duc, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Performance analysis of optical burst switched networks with limited-range wavelength conversion, retransmission and burst segmentation," Journal of the Operations Research Society of Japan, vol. 52, no. 1, pp. 58-74, 2009. Yusuke Uchida, Sei Sunahara, Eisaburo Itakura, Hiroyuki Masuyama, Shoji Kasahara, and Yutaka Takahashi, ``Proactive retransmission and buffer management for layered video transmission over wireless channel," IEICE Transactions on Communications, vol. E91-B, no. 9, pp. 2897-2906, 2008. Hiroyuki Masuyama and Tetsuya Takine, ``Multiclass Markovian fluid queues," Queueing Systems, vol. 56, nos.3-4, pp. 143-155, 2007. Kentaro Daikoku, Hiroyuki Masuyama, Tetsuya Takine, and Yutaka Takahashi, ``Algorithmic computation of the transient queue length distribution in the BMAP/D/c queue," Journal of the Operations Research Society of Japan, vol. 50, no. 1, pp. 55-72, 2007. Hiroyuki Masuyama and Tetsuya Takine, ``Algorithmic computation of the time-dependent solution of structured Markov chains and its application to queues," Stochastic Models, vol. 21, no. 4, pp. 885-912, 2005. Hiroyuki Masuyama and Tetsuya Takine, ``Matrix product-form solutions for LCFS preemptive service single-server queues with batch Markovian arrival streams," Stochastic Models, vol. 21, nos.2-3, pp. 551-577, 2005. Hiroyuki Masuyama and Tetsuya Takine, ``Sojourn time distribution in a MAP/M/1 processor-sharing queue," Operations Research Letters, vol. 31, no. 5, pp. 406-412, 2003. Hiroyuki Masuyama and Tetsuya Takine, ``Stationary queue length in a FIFO single server queue with service interruptions and multiple batch Markovian arrival streams," Journal of the Operations Research Society of Japan, vol. 46, no. 3, pp. 319-341, 2003. Hiroyuki Masuyama and Tetsuya Takine, ``Analysis and computation of the joint queue length distribution in a FIFO single-server queue with multiple batch Markovian arrival streams," Stochastic Models, vol. 19, no. 3, pp. 349-381, 2003. Hiroyuki Masuyama and Tetsuya Takine, ``Analysis of an infinite-server queue with batch Markovian arrival streams," Queueing Systems, vol. 42, no. 3, pp. 269-296, 2002.
受賞	日本OR学会待ち行列研究部会第9回論文賞(2021年度) 日本OR学会待ち行列研究部会第8回論文賞(2020年度) 日本OR学会第7回研究賞(2017年度) 日本OR学会待ち行列研究部会第4回論文賞(2015年度) 日本OR学会待ち行列研究部会第3回論文賞(2014年度) 日本OR学会第4回論文賞(2014年度) 日本OR学会第2回文献賞奨励賞(2007年度)
主な学会活動	日本オペレーションズ・リサーチ(OR)学会
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担当科目	基礎ゼミナール経営数理基礎数学2 経営学コース特別講義（データ科学のための線形代数）演習（増山）演習（増山）卒業論文（増山）経営数理基礎数学2 経営学コース特別講義（データ科学のための線形代数）演習（増山）演習（増山）卒業論文（増山）応用線形代数経営学特別演習（データサイエンス）研究指導（増山）研究指導（増山）経営科学特殊研究経営科学特殊演習経営科学特別研究経営科学特別演習特別研究（増山）特別研究（増山）特別研究（増山）特別研究（増山）経営科学特殊研究経営科学特殊研究
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