- 2021/03 - 現在 MDPI Mathematics誌 編集員
- 2021/03 - 現在 MDPI Mathematics誌 編集員
- 2019/07 - 現在 MDPI Mathematics Guest Editor
- 2019/07 - 現在 MDPI Mathematics Guest Editor
- 2019/06 - 現在 日本オペレーションズ・リサーチ学会 Journal of the Operations Research Society of Japan/Associate Editor
- 2019/06 - 現在 日本オペレーションズ・リサーチ学会 Journal of the Operations Research Society of Japan/Associate Editor
- 2018/05 - 現在 EAI Transactions on Scalable Information Systems Area Editor
- 2018/04 - 現在 日本オペレーションズ・リサーチ学会 幹事
- 2017/04 - 現在 Queueing Models and Service Management/編集員
- 2017/04 - 現在 Queueing Models and Service Management/編集員
- 2015/12 - 現在 編集員:International Journal of Applied & Experimental Mathematics (IJAEM)
- 2015/12 - 現在 編集員:International Journal of Applied & Experimental Mathematics (IJAEM)
- 2013/11 - 現在 ICT Platform Society 編集員:Journal of Platform Technology
- 2013/11 - 現在 ICT Platform Society 編集員:Journal of Platform Technology
- 2013/01 - 現在 Korean Society for Internet Information 編集員:KSII Transactions on Internet and Information Systems
- 2013/01 - 現在 Korean Society for Internet Information 編集員:KSII Transactions on Internet and Information Systems
- 2023/01 - 2023/08 ICIAM 2023 Tokyo: Waseda University, Tokyo, Japan August 20-25, 2023 10th International Congress on Industrial and Applied Mathematics ミニシンポジウムの企画者:Queues and Related Stochastic Models
- 2023/02 - 2023/06 The 19th European Performance Engineering Workshop (EPEW 2023) Florence - 20-23 June, 2023 Technical Program Committee
- 2023/02 - 2023/06 The 27th International Conference on Analytical & Stochastic Modelling Techniques & Applications (ASMTA 2023) Technical Program Committee
- 2022/10 - 2023/04 PESARO 2023, The Thirteenth International Conference on Performance, Safety and Robustness in Complex Systems and Applications Technical Program Committee
- 2019/01 - 2022/03 Annals of Operations Research Special Issue of Annals of Operations Research on Queues and Related Stochastic Models/ゲスト編集員
- 2019/01 - 2022/03 Annals of Operations Research Special Issue of Annals of Operations Research on Queues and Related Stochastic Models/ゲスト編集員
- 2020/12 - 2021/12 The 26th International Conference on Analytical & Stochastic Modelling Techniques & Applications (ASMTA 2021) General Chair
- 2020/12 - 2021/12 The 26th International Conference on Analytical & Stochastic Modelling Techniques & Applications (ASMTA 2021) General Chair
- 2020/12 - 2021/12 17th European Performance Engineering Workshop (EPEW 2021) General Chair
- 2020/12 - 2021/12 17th European Performance Engineering Workshop (EPEW 2021) General Chair
- 2021/01 - 2021/11 EAI VALUETOOLS 2021 - 14th EAI International Conference on Performance Evaluation Methodologies and Tools Technical Program Committee
- 2021/01 - 2021/11 EAI VALUETOOLS 2021 - 14th EAI International Conference on Performance Evaluation Methodologies and Tools Technical Program Committee
- 2020/12 - 2021/08 18th International Conference on Quantitative Evaluation of SysTems (QEST 2021) Technical Program Committee
- 2020/12 - 2021/08 18th International Conference on Quantitative Evaluation of SysTems (QEST 2021) Technical Program Committee
- 2020/12 - 2021/04 The Eleventh International Conference on Performance, Safety and Robustness in Complex Systems and Applications PESARO 2021 Technical Program Committee
- 2020/12 - 2021/04 The Eleventh International Conference on Performance, Safety and Robustness in Complex Systems and Applications PESARO 2021 Technical Program Committee
- 2019/07 - 2021/02 MDPI Mathematics 特集号 "Queue and Stochastic Models for Operations Research"/ゲスト編集員
- 2019/07 - 2021/02 MDPI Mathematics 特集号 "Queue and Stochastic Models for Operations Research"/ゲスト編集員
- 2018/02 - 2020/10 Annals of Operations Research Special Issue of Annals of Operations Research on Queueing Theory and Network Applications II/編集員
- 2018/02 - 2020/10 Annals of Operations Research Special Issue of Annals of Operations Research on Queueing Theory and Network Applications II/編集員
- 2019/09 - 2020/09 17th International Conference on Quantitative Evaluation of SysTems (QEST 2020) Technical Program Committee
- 2019/09 - 2020/09 17th International Conference on Quantitative Evaluation of SysTems (QEST 2020) Technical Program Committee
- 2019/10 - 2020/08 The MONAMI 2020 - 10th EAI International Conference on Mobile Networks and Management Technical Program Committee
- 2017/12 - 2020/08 The Open Statistics and Probability Journal Editorial Board
- 2019/04 - 2020/05 European Alliance for Innovation VALUETOOLS 2020 - 13th EAI International Conference on Performance Evaluation Methodologies and Tools/General Chair
- 2019/04 - 2020/05 European Alliance for Innovation VALUETOOLS 2020 - 13th EAI International Conference on Performance Evaluation Methodologies and Tools/General Chair
- 2018/04 - 2020/03 THE OPERATIONS RESEARCH SOCIETY OF JAPAN Secretary
- 2018/04 - 2020/03 日本オペレーションズ・リサーチ学会 待ち行列研究部会幹事
- 2019/06 - 2020/02 Tenth International Conference on Performance, Safety and Robustness in Complex Systems and Applications PESARO 2020 Technical Program Committee
- 2019/06 - 2020/02 Tenth International Conference on Performance, Safety and Robustness in Complex Systems and Applications PESARO 2020 Technical Program Committee
- 2019/04 - 2019/10 25th International Conference on Analytical & Stochastic Modelling Techniques & Applications Technical Program Committee
- 2019/04 - 2019/10 25th International Conference on Analytical & Stochastic Modelling Techniques & Applications Technical Program Committee
- 2019/01 - 2019/08 14th International Conference on Queueing Theory and Network Applications Co-Chair of Technical Program Committee
- 2019/01 - 2019/08 14th International Conference on Queueing Theory and Network Applications Co-Chair of Technical Program Committee
- 2018/12 - 2019/06 18th International Conference on INFORMATION TECHNOLOGIES AND MATHEMATICAL MODELLING IТММ - 2019 International Technical Programme Committee
- 2018/12 - 2019/06 18th International Conference on INFORMATION TECHNOLOGIES AND MATHEMATICAL MODELLING IТММ - 2019 International Technical Programme Committee
- 2016/10 - 2019/06 Annals of Operations Research Special Issue of Annals of Operations Research on Queueing Theory and Network Applications/編集員
- 2016/10 - 2019/06 Annals of Operations Research Special Issue of Annals of Operations Research on Queueing Theory and Network Applications/編集員
- 2018/08 - 2019/03 12th EAI International Conference on Performance Evaluation Methodologies and Tools 12th EAI International Conference on Performance Evaluation Methodologies and Tools/Technical Program Committee
- 2018/08 - 2019/03 12th EAI International Conference on Performance Evaluation Methodologies and Tools 12th EAI International Conference on Performance Evaluation Methodologies and Tools/Technical Program Committee
- 2018/05 - 2019/03 The 13th IEEE-RIVF International Conference on Computing and Communication Technologies Technical Program Committee
- 2013/04 - 2019/03 日本オペレーションズ・リサーチ学会 庶務幹事
- 2018/08 - 2018/09 The Stochastic Modeling and Applied Research of Technology (SMARTY 2018) international workshop Co-Chair of Technical Program Committee
- 2018/08 - 2018/09 The Stochastic Modeling and Applied Research of Technology (SMARTY 2018) international workshop Co-Chair of Technical Program Committee
- 2017/12 - 2018/09 12th International Workshop on Retrial Queues and Related Topics (WRQ 2018) International Program Committee
- 2017/12 - 2018/09 12th International Workshop on Retrial Queues and Related Topics (WRQ 2018) International Program Committee
- 2017/10 - 2018/07 13th International Conference on Queueing Theory and Network Applications (QTNA2018) Co-Chair of Technical Program Committee and Co-Chair of Local Organizing Committee
- 2017/10 - 2018/07 13th International Conference on Queueing Theory and Network Applications (QTNA2018) Co-Chair of Technical Program Committee and Co-Chair of Local Organizing Committee
- 2018/05 - The 13th IEEE-RIVF International Conference on Computing and Communication Technologies Technical Program Committee
- 2018/05 - EAI Transactions on Scalable Information Systems Area Editor
- 2017/11 - 2018/04 IEEE 2018 IEEE Wireless Communications and Networking Conference (WCNC)/Technical Program Committee
- 2017/11 - 2018/04 IEEE 2018 IEEE Wireless Communications and Networking Conference (WCNC)/Technical Program Committee
- 2017/06 - 2018/04 3rd EAI International Conference on Smart Grid and Innovative Frontiers in Telecommunications/Technical Program Committee
- 2017/06 - 2018/04 3rd EAI International Conference on Smart Grid and Innovative Frontiers in Telecommunications/Technical Program Committee
- 2017/03 - 2017/12 11th EAI International Conference on Performance Evaluation Methodologies and Tools (Valuetools 2017) Technical Programme Committee Member
- 2017/03 - 2017/12 11th EAI International Conference on Performance Evaluation Methodologies and Tools (Valuetools 2017) Technical Programme Committee Member
- 2017/12 - The Open Statistics and Probability Journal Editorial Board
- 2016/11 - 2017/09 Symposium on Stochastic Models: Methods and Applications (SAMMA), 15th International Conference of Numerical Analysis and Applie Co-Organizer
- 2016/11 - 2017/09 Symposium on Stochastic Models: Methods and Applications (SAMMA), 15th International Conference of Numerical Analysis and Applie Co-Organizer
- 2017/03 - 2017/08 The 12th International Conference on Queueing Theory and Network Applications (QTNA2017) Technical Programme Committee Member
- 2017/03 - 2017/08 The 12th International Conference on Queueing Theory and Network Applications (QTNA2017) Technical Programme Committee Member
- 2017/01 - 2017/07 24th International Conference on Analytical and Stochastic Modelling Techniques and Applications (ASMTA'17) Technical Programme Committee Member
- 2017/01 - 2017/07 24th International Conference on Analytical and Stochastic Modelling Techniques and Applications (ASMTA'17) Technical Programme Committee Member
- 2016/09 - 2017/05 The Thirteenth International Conference on Networking and Services (ICNS 2017) Technical Programme Committee Member
- 2016/09 - 2017/05 The Thirteenth International Conference on Networking and Services (ICNS 2017) Technical Programme Committee Member
- 2016 - 2017/01 待ち行列シンポジウム「確率モデルとその応用」/実行委員
- 2016 - 2017/01 待ち行列シンポジウム「確率モデルとその応用」/実行委員
- 2016/07 - 2016/12 The 11th International Conference on Queueing Theory and Network Applications (QTNA2016) Publications Co-chair
- 2016/07 - 2016/12 The 11th International Conference on Queueing Theory and Network Applications (QTNA2016) Publications Co-chair
- 2016/06 - 2016/12 Technical Programme Committee Member of The 11th International Conference on Queueing Theory and Network Applications (QTNA2016)
- 2016/06 - 2016/12 Technical Programme Committee Member of The 11th International Conference on Queueing Theory and Network Applications (QTNA2016)
- 2016/03 - 2016/12 TPC of The Fifth International Symposium on Integrated Uncertainty in Knowledge Modelling and Decision Making (IUKM 2016)
- 2016/03 - 2016/12 TPC of The Fifth International Symposium on Integrated Uncertainty in Knowledge Modelling and Decision Making (IUKM 2016)
- 2016/05 - 2016/11 TPC Member of The 12th IEEE-RIVF International Conference on Computing and Communication Technologies
- 2016/05 - 2016/11 TPC Member of The 12th IEEE-RIVF International Conference on Computing and Communication Technologies
- 2016/01 - 2016/09 Advisory Board of the 11th International Workshop on Retrial Queues and Related Topics (11th WRQ)
- 2016/01 - 2016/09 Advisory Board of the 11th International Workshop on Retrial Queues and Related Topics (11th WRQ)
- 2016/01 - 2016/09 Co-Organizer of the Symposium on Stochastic Models: Methods and Applications (SAMMA), 14th ICNAAM
- 2016/01 - 2016/09 Co-Organizer of the Symposium on Stochastic Models: Methods and Applications (SAMMA), 14th ICNAAM
- 2015/05 - 2016/08 23rd International Conference on Analytical and Stochastic Modelling Techniques and Applications (ASMTA'16)/プログラム委員長
- 2015/05 - 2016/08 23rd International Conference on Analytical and Stochastic Modelling Techniques and Applications (ASMTA'16)/プログラム委員長
- 2015/10 - 2016/06 TPC Member of The Twelfth International Conference on Networking and Services (ICNS 2016)
- 2015/10 - 2016/06 TPC Member of The Twelfth International Conference on Networking and Services (ICNS 2016)
- 2015/04 - 2016/01 待ち行列シンポジウム「確率モデルとその応用」/実行委員
- 2015/04 - 2016/01 待ち行列シンポジウム「確率モデルとその応用」/実行委員
- 2014/04 - 2015/01 2014年度確率モデルシンポジウム/実行委員
- 2013/04 - 2014/01 確率モデルシンポジウム/実行委員
- 2012/04 - 2013/01 待ち行列シンポジウム「確率モデルとその応用」/実行委員