Rchr
J-GLOBAL ID:200901061386069007   Update date: Aug. 20, 2024

Okamura Hiroyuki

オカムラ ヒロユキ | Okamura Hiroyuki
Affiliation and department:
Research field  (1): Mathematical informatics
Research keywords  (5): Operations Research ,  Software Reliability Engineering ,  Reliability Engineering ,  Performance Analysis ,  Stochastic Model
Research theme for competitive and other funds  (17):
  • 2020 - 2023 A Development of Perfect Sampling with SAT/SMT Solvers
  • 2017 - 2020 Expansion of Applicability of Phase Approximation for Non-Markovian Models
  • 2014 - 2017 Development of Scalable Algorithms of MRSPN/MRGP Analysis for the Automation
  • 2011 - 2013 A Study on Reliability Assessment for Embedded OS
  • 2009 - 2011 Software Reliability Evaluation under Quasi-Random Testing
Show all
Papers (233):
  • Junjun Zheng, Hiroyuki Okamura, Tadashi Dohi. On the sensitivity of stationary solutions of Markov regenerative processes. Performance Evaluation. 2024. 102397-102397
  • Jing Wu, Junjun Zheng, Hiroyuki Okamura, Tadashi Dohi. Optimal block replacement policies under replacement first and last disciplines. Proceedings of the 1st International Online Conference on Mathematics and Applications. 2023. 1-6
  • Li, Siqiao, Dohi, Tadashi, Okamura, Hiroyuki. Software reliability analysis via geometric de-eutrophication models with group data. INTERNATIONAL JOURNAL OF SYSTEM ASSURANCE ENGINEERING AND MANAGEMENT. 2023. 14. 1. 156-164
  • Chen Li, Junjun Zheng, Hiroyuki Okamura, Tadashi Dohi. Performance Evaluation of a Cloud Datacenter Using CPU Utilization Data. Mathematics. 2023. 11. 3. 513-513
  • Junjun Zheng, Hiroyuki Okamura, Tadashi Dohi. Hierarchical Dependability Modeling with Multi-State Systems. PRDC. 2023. 268-277
more...
MISC (123):
  • 岡村 寛之, 伊藤 彰秀, 土肥 正. An Empirical Study on Software Reliability Prediction Using Phase-Type Software Reliability Models (信頼性). 電子情報通信学会技術研究報告 = IEICE technical report : 信学技報. 2017. 117. 253. 1-6
  • 川崎 美穂, 岡村 寛之, 土肥 正. An Extension of Software Reliability Models with Marshall-Olkin Type Distribution (信頼性). 電子情報通信学会技術研究報告 = IEICE technical report : 信学技報. 2017. 117. 90. 13-18
  • Development of a Prototype of Phase-Type Software Reliability Assessment Tool on Spreadsheet. 2017. 117. 62. 7-12
  • A Quantitative Study on Bug Fixing Process in Open Source Software. 2016. 116. 367. 19-24
  • 岡村 寛之, 土肥 正. A Note on Transient Analysis of Software Rejuvenation Model with Phase-Type Approximation (信頼性). 電子情報通信学会技術研究報告 = IEICE technical report : 信学技報. 2016. 116. 260. 37-42
more...
Books (3):
  • System Dependability and Analytics
    Springer 2022
  • Advances in Reliability and System Engineering
    Springer 2016
  • Principles of Performance and Reliability Modeling and Evaluation
    Springer 2016
Education (3):
  • 1995 - 1997 Hiroshima University Graduate School, Division of Engineering
  • 1995 - 1997 Hiroshima University Graduate School, Division of Engineering
  • 1991 - 1995 Hiroshima University Faculty of Engineering
Professional career (2):
  • Doctor of Engineering (Hiroshima University)
  • Master of Engineering (Hiroshima University)
Work history (7):
  • 2018/04/01 - 2020/03/31 Hiroshima University Graduate School of Engineering Professor
  • 2003/04/01 - 2018/03/31 Hiroshima University Graduate School of Engineering Associate Professor
  • 2007/04/01 - 2010/03/31 Hiroshima University Graduate School of Engineering Associate Professor
  • 2003/04/01 - 2007/03/31 Hiroshima University Graduate School of Engineering Assistant Professor
  • 2001/04/01 - 2003/03/31 Hiroshima University Graduate School of Engineering Assistant
Show all
Awards (5):
  • 2018/06/18 - IEEE Reliability Society Japan Joint Chapter IEEE Reliability Society Japan Joint Chapter 論文賞
  • 2018/06/18 - IEEE Reliability Society Japan Joint Chapter IEEE Reliability Society Japan Joint Chapter 論文賞
  • 2018/06/08 - ソフトウェア・シンポジウム2018 最優秀論文賞 バグ修正時間を考慮したソフトウェア最適リリース問題についての一考察
  • 2018/06/08 - ソフトウェア・シンポジウム2018プログラム委員長 ソフトウェア技術者協会ソフトウェア・シンポジウム2018 最優秀論文賞
  • 2004/02 - IEEE Reliability Society Japan Chapter "The IEEE Reliability Society Japan Chapter, Outstanding Young Scientist Award"
Association Membership(s) (6):
Reliability Engineering Association of Japan ,  ACM ,  IEEE ,  ORSJ ,  IPSJ ,  IEICE
※ Researcher’s information displayed in J-GLOBAL is based on the information registered in researchmap. For details, see here.

Return to Previous Page