Hiroyuki Okamura

Orcid: 0000-0001-6881-0593

According to our database1, Hiroyuki Okamura authored at least 154 papers between 2000 and 2024.

Collaborative distances:
  • Dijkstra number2 of four.
  • Erdős number3 of four.

Timeline

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Bibliography

2024
Optimal test case generation for boundary value analysis.
Softw. Qual. J., June, 2024

Performance Comparison of Software Reliability Estimation Algorithms.
Computer, April, 2024

Reliability Computing Methods of Probabilistic Location Set Covering Problem Considering Wireless Network Applications.
IEEE Trans. Reliab., March, 2024

Local polynomial software reliability models and their application.
Inf. Softw. Technol., February, 2024

On the sensitivity of stationary solutions of Markov regenerative processes.
Perform. Evaluation, 2024

Long-term software fault prediction with wavelet shrinkage estimation.
J. Syst. Softw., 2024

Performance Comparison of Bayesian Estimations on the Residual Number of Software Bugs.
Proceedings of the 54th Annual IEEE/IFIP International Conference on Dependable Systems and Networks, 2024

2023
Nonhomogeneous Markov Process Modeling for Software Reliability Assessment.
IEEE Trans. Reliab., December, 2023

Software reliability analysis via geometric de-eutrophication models with group data.
Int. J. Syst. Assur. Eng. Manag., February, 2023

Hierarchical Dependability Modeling with Multi-State Systems.
Proceedings of the 28th IEEE Pacific Rim International Symposium on Dependable Computing, 2023

Towards Predicting Source Code Changes Based on Natural Language Processing Models: An Empirical Evaluation.
Proceedings of the 34th IEEE International Symposium on Software Reliability Engineering, ISSRE 2023, 2023

Tool Development of Daubechies Wavelet Estimation for Stochastic Counting Processes.
Proceedings of the 10th International Conference on Dependable Systems and Their Applications, 2023

Software Reliability Modeling Based on Zero-truncated and/or Zero-inflated Compound Distributions.
Proceedings of the 10th International Conference on Dependable Systems and Their Applications, 2023

Another Look at Non-homogeneous Markovian Software Reliability Modeling.
Proceedings of the 10th International Conference on Dependable Systems and Their Applications, 2023

A Note on Optimal Retraining Strategy for ML Systems.
Proceedings of the 10th International Conference on Dependable Systems and Their Applications, 2023

Towards High-Quality Test Suite Generation with ML-Based Boundary Value Analysis.
Proceedings of the 10th International Conference on Dependable Systems and Their Applications, 2023

2022
Burr-type NHPP-based software reliability models and their applications with two type of fault count data.
J. Syst. Softw., 2022

Variance-Based Sensitivity Analysis for Markov Models using Moment Approximation.
Int. J. Perform. Eng., 2022

Hierarchical Bayesian Parameter Estimation of Queueing Systems using Utilization Data.
Int. J. Perform. Eng., 2022

Parameter Estimation of Markovian Arrivals with Utilization Data.
IEICE Trans. Commun., 2022

Automated Software Test Data Generation With Generative Adversarial Networks.
IEEE Access, 2022

2021
Quantitative Security Evaluation of Intrusion Tolerant Systems With Markovian Arrivals.
IEEE Trans. Reliab., 2021

Availability importance measures of components in smart electric power grid systems.
Reliab. Eng. Syst. Saf., 2021

Age replacement with Markovian opportunity process.
Reliab. Eng. Syst. Saf., 2021

W-SRAT: Wavelet-based Software Reliability Assessment Tool.
Proceedings of the 21st IEEE International Conference on Software Quality, 2021

A Tool to Support Vibration Testing Method for Automatic Test Case Generation and Test Result Analysis.
Proceedings of the 21st IEEE International Conference on Software Quality, 2021

Investigating Trend/Cyclic/Clustering Decomposition in Software Fault Detection.
Proceedings of the 21st IEEE International Conference on Software Quality, 2021

Sensitivity Analysis of Software Rejuvenation Model with Markov Regenerative Process.
Proceedings of the IEEE International Symposium on Software Reliability Engineering, 2021

A Comprehensive Evaluation for Burr-Type NHPP-based Software Reliability Models.
Proceedings of the 8th International Conference on Dependable Systems and Their Applications, 2021

2020
A transient interval reliability analysis for software rejuvenation models with phase expansion.
Softw. Qual. J., 2020

Optimal Rejuvenation Policies for Non-Markovian Availability Models with Aperiodic Checkpointing.
IEICE Trans. Inf. Syst., 2020

A Comprehensive Performance Evaluation on Iterative Algorithms for Sensitivity Analysis of Continuous-Time Markov Chains.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2020

An SMT-Based Perfect Sampling Algorithm for Stochastic Petri Nets.
Proceedings of the VALUETOOLS 2020: 13th EAI International Conference on Performance Evaluation Methodologies and Tools, 2020

How Robust is the Optimal Software Rejuvenation Timing?
Proceedings of the 2020 IEEE International Symposium on Software Reliability Engineering Workshops, 2020

Analysis of Queueing Models for Rejuvenation.
Proceedings of the Handbook of Software Aging and Rejuvenation, 2020

2019
Parameter Estimation of $M_{t}/M/1/K$ Queueing Systems With Utilization Data.
IEEE Access, 2019

A Point Process Approach of Bug Fixing Analysis in Open Source Software Projects.
Proceedings of the 19th IEEE International Conference on Software Quality, 2019

On Kolmogorov-Smirnov Test for Software Reliability Models with Grouped Data.
Proceedings of the 19th IEEE International Conference on Software Quality, 2019

Moment-Based Approximation for Uncertainty Propagation in Fault Trees.
Proceedings of the 24th IEEE Pacific Rim International Symposium on Dependable Computing, 2019

Security Evaluation of a VM-Based Intrusion-Tolerant System with Pull-Type Patch Management.
Proceedings of the 19th IEEE International Symposium on High Assurance Systems Engineering, 2019

2018
Optimal periodic software rejuvenation policies based on interval reliability criteria.
Reliab. Eng. Syst. Saf., 2018

Component Importance Analysis of Mobile Cloud Computing System in the Presence of Common-Cause Failures.
IEEE Access, 2018

Software Test-Run Reliability Modeling with Non-homogeneous Binomial Processes.
Proceedings of the 23rd IEEE Pacific Rim International Symposium on Dependable Computing, 2018

Parametric Uncertainty Propagation through Dependability Models.
Proceedings of the 8th Latin-American Symposium on Dependable Computing, 2018

A Pull-Type Security Patch Management of an Intrusion Tolerant System Under a Periodic Vulnerability Checking Strategy.
Proceedings of the 2018 IEEE 42nd Annual Computer Software and Applications Conference, 2018

How Do Software Metrics Affect Test Case Prioritization?
Proceedings of the 2018 IEEE 42nd Annual Computer Software and Applications Conference, 2018

2017
A Comprehensive Evaluation of Software Rejuvenation Policies for Transaction Systems With Markovian Arrivals.
IEEE Trans. Reliab., 2017

Dynamic Power Management With Optimal Time-Out Policies.
IEEE Syst. J., 2017

A Statistical Framework on Software Aging Modeling with Continuous-Time Hidden Markov Model.
Proceedings of the 36th IEEE Symposium on Reliable Distributed Systems, 2017

A Generalized Bivariate Modeling Framework of Fault Detection and Correction Processes.
Proceedings of the 28th IEEE International Symposium on Software Reliability Engineering, 2017

Software Reliability Modeling and Analysis via Kernel-Based Approach.
Proceedings of the 22nd International Conference on Engineering of Complex Computer Systems, 2017

A Comprehensive Evaluation of Software Reliability Modeling Based on Marshall-Olkin Type Fault-Detection Time Distribution.
Proceedings of the 24th Asia-Pacific Software Engineering Conference, 2017

2016
Phase-type software reliability model: parameter estimation algorithms with grouped data.
Ann. Oper. Res., 2016

A Phase Expansion Approach for Transient Analysis of Software Rejuvenation Model.
Proceedings of the 2016 IEEE International Symposium on Software Reliability Engineering Workshops, 2016

Mean Time to Security Failure of VM-Based Intrusion Tolerant Systems.
Proceedings of the 36th IEEE International Conference on Distributed Computing Systems Workshops, 2016

Performance Evaluation of VM-based Intrusion Tolerant Systems with Poisson Arrivals.
Proceedings of the Fourth International Symposium on Computing and Networking, 2016

2015
Network survivability modeling and analysis for power-aware MANETs by Markov regenerative processes.
Telecommun. Syst., 2015

Survivability Analysis of VM-Based Intrusion Tolerant Systems.
IEICE Trans. Inf. Syst., 2015

Quantifying Resiliency of Virtualized System with Software Rejuvenation.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2015

A Markov Decision Process Approach to Dynamic Power Management in a Cluster System.
IEEE Access, 2015

Optimal Power-Aware Design in a Cluster System: Markov Decision Process Approach.
Proceedings of the 2015 IEEE 12th Intl Conf on Ubiquitous Intelligence and Computing and 2015 IEEE 12th Intl Conf on Autonomic and Trusted Computing and 2015 IEEE 15th Intl Conf on Scalable Computing and Communications and Its Associated Workshops (UIC-ATC-ScalCom), 2015

Fine-Grained Software Reliability Estimation Using Software Testing Inputs.
Proceedings of the 2015 IEEE International Conference on Software Quality, 2015

mapfit: An R-Based Tool for PH/MAP Parameter Estimation.
Proceedings of the Quantitative Evaluation of Systems, 12th International Conference, 2015

Component Importance Measures for Real-Time Computing Systems in the Presence of Common-Cause Failures.
Proceedings of the 21st IEEE Pacific Rim International Symposium on Dependable Computing, 2015

Survivability Quantification of Wireless Ad Hoc Network Taking Account of Border Effects.
Proceedings of the 21st IEEE Pacific Rim International Symposium on Dependable Computing, 2015

Towards comprehensive software reliability evaluation in open source software.
Proceedings of the 26th IEEE International Symposium on Software Reliability Engineering, 2015

2014
Performance evaluation of snapshot isolation in distributed database system under failure-prone environment.
J. Supercomput., 2014

Variational Bayes for Phase-Type Distribution.
Commun. Stat. Simul. Comput., 2014

Coarse-Grained Parallel Uniformization for Continuous-Time Markov Chains.
Proceedings of the 20th IEEE Pacific Rim International Symposium on Dependable Computing, 2014

Optimal Reliability Design for Real-Time Systems with Dynamic Voltage and Frequency Scaling.
Proceedings of the 20th IEEE Pacific Rim International Symposium on Dependable Computing, 2014

A Novel Framework of Software Reliability Evaluation with Software Reliability Growth Models and Software Metrics.
Proceedings of the 15th International IEEE Symposium on High-Assurance Systems Engineering, 2014

2013
Application of deterministic annealing EM algorithm to MAP/PH parameter estimation.
Telecommun. Syst., 2013

Enhancing Performance of Random Testing through Markov Chain Monte Carlo Methods.
IEEE Trans. Computers, 2013

Software reliability growth models with normal failure time distributions.
Reliab. Eng. Syst. Saf., 2013

Dynamic software rejuvenation policies in a transaction-based system under Markovian arrival processes.
Perform. Evaluation, 2013

Optimal Trigger Time of Software Rejuvenation under Probabilistic Opportunities.
IEICE Trans. Inf. Syst., 2013

Generalized Cox Proportional Hazards Regression-Based Software Reliability Modeling with Metrics Data.
Proceedings of the IEEE 19th Pacific Rim International Symposium on Dependable Computing, 2013

Estimating Software Reliability with Static Project Data in Incremental Development Processes.
Proceedings of the 2013 Joint Conference of the 23rd International Workshop on Software Measurement and the 8th International Conference on Software Process and Product Measurement, 2013

Estimating response time distribution of server application in software aging phenomenon.
Proceedings of the IEEE 24th International Symposium on Software Reliability Engineering, 2013

SRATS: Software reliability assessment tool on spreadsheet (Experience report).
Proceedings of the IEEE 24th International Symposium on Software Reliability Engineering, 2013

Characteristic analysis of quantitative definition of resiliency measure.
Proceedings of the IEEE 24th International Symposium on Software Reliability Engineering, 2013

Quantifying software test process and product reliability simultaneously.
Proceedings of the IEEE 24th International Symposium on Software Reliability Engineering, 2013

A Fast EM Algorithm for Fitting Marked Markovian Arrival Processes with a New Special Structure.
Proceedings of the Computer Performance Engineering - 10th European Workshop, 2013

Modeling and Analysis of Multi-version Concurrent Control.
Proceedings of the 37th Annual IEEE Computer Software and Applications Conference, 2013

2012
Application of Markov Chain Monte Carlo Random Testing to Test Case Prioritization in Regression Testing.
IEICE Trans. Inf. Syst., 2012

NHPP-Based Software Reliability Models Using Equilibrium Distribution.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2012

An efficient MCMC algorithm for continuous ph distributions.
Proceedings of the Winter Simulation Conference, 2012

Component Importance Analysis of Virtualized System.
Proceedings of the 9th International Conference on Ubiquitous Intelligence and Computing and 9th International Conference on Autonomic and Trusted Computing, 2012

Model-Based Performance Optimization of Generalized Snapshot Isolation in Database System.
Proceedings of the 9th International Conference on Ubiquitous Intelligence and Computing and 9th International Conference on Autonomic and Trusted Computing, 2012

Optimizing Software Rejuvenation Policies under Interval Reliability Criteria.
Proceedings of the 9th International Conference on Ubiquitous Intelligence and Computing and 9th International Conference on Autonomic and Trusted Computing, 2012

Software testing-resource allocation with operational profile.
Proceedings of the ACM Symposium on Applied Computing, 2012

Estimating software reliability via pseudo maximum likelihood method.
Proceedings of the ACM Symposium on Applied Computing, 2012

Optimization of Opportunity-Based Software Rejuvenation Policy.
Proceedings of the 23rd IEEE International Symposium on Software Reliability Engineering Workshops, 2012

Survivability modeling and analysis for a power-aware wireless ad hoc network.
Proceedings of the 4th International Congress on Ultra Modern Telecommunications and Control Systems, 2012

2011
A refined EM algorithm for PH distributions.
Perform. Evaluation, 2011

Unification of Software Reliability Models Using Markovian Arrival Processes.
Proceedings of the 17th IEEE Pacific Rim International Symposium on Dependable Computing, 2011

Quantifying the Effectiveness of Testing Efforts on Software Fault Detection with a Logit Software Reliability Growth Model.
Proceedings of the 2011 Joint Conf of 21st Int'l Workshop on Software Measurement and the 6th Int'l Conference on Software Process and Product Measurement, 2011

A POMDP Formulation of Multistep Failure Model with Software Rejuvenation.
Proceedings of the IEEE Third International Workshop on Software Aging and Rejuvenation, 2011

Application of Reinforcement Learning to Software Rejuvenation.
Proceedings of the 10th International Symposium on Autonomous Decentralized Systems, 2011

On the Effect of the Order of Test Cases in the Modified Exponential Software Reliability Growth Model.
Proceedings of the Second International Conference on Networking and Computing, 2011

Bayesian Inference for Credible Intervals of Optimal Software Release Time.
Proceedings of the Software Engineering, Business Continuity, and Education, 2011

Composite dependability modeling for in-vehicle networks.
Proceedings of the IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN-W 2011), 2011

2010
Software safety assessment based on a subordinated Markov chain.
Int. J. Syst. Assur. Eng. Manag., 2010

Comprehensive evaluation of aperiodic checkpointing and rejuvenation schemes in operational software system.
J. Syst. Softw., 2010

Application of Deterministic Annealing EM Algorithm to Markovian Arrival Process Parameter Estimation.
Proceedings of the Symposia and Workshops on Ubiquitous, 2010

Markov Chain Monte Carlo Random Testing.
Proceedings of the Advances in Computer Science and Information Technology, 2010

Estimating Computer Virus Propagation Based on Markovian Arrival Processes.
Proceedings of the 16th IEEE Pacific Rim International Symposium on Dependable Computing, 2010

A Software Accelerated Life Testing Model.
Proceedings of the 16th IEEE Pacific Rim International Symposium on Dependable Computing, 2010

A Multi-factor Software Reliability Model Based on Logistic Regression.
Proceedings of the IEEE 21st International Symposium on Software Reliability Engineering, 2010

Performance-aware software rejuvenation strategies in a queueing system.
Proceedings of the Second IEEE International Workshop on Software Aging and Rejuvenation, 2010

On-Line Adaptive Algorithms in Autonomic Restart Control.
Proceedings of the Autonomic and Trusted Computing - 7th International Conference, 2010

2009
Markovian arrival process parameter estimation with group data.
IEEE/ACM Trans. Netw., 2009

Gompertz software reliability model: Estimation algorithm and empirical validation.
J. Syst. Softw., 2009

Software Reliability Modeling Based on Capture-Recapture Sampling.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009

Faster Maximum Likelihood Estimation Algorithms for Markovian Arrival Processes.
Proceedings of the QEST 2009, 2009

Optimal Security Patch Release Timing under Non-homogeneous Vulnerability-Discovery Processes.
Proceedings of the ISSRE 2009, 2009

An EM Algorithm for Record Value Statistics Models in Software Reliability Estimation.
Proceedings of the Advances in Software Engineering, 2009

A Bayesian Inference Tool for NHPP-Based Software Reliability Assessment.
Proceedings of the Future Generation Information Technology, 2009

Security Evaluation of an Intrusion Tolerant System with MRSPNs.
Proceedings of the The Forth International Conference on Availability, 2009

2008
Hyper-Erlang Software Reliability Model.
Proceedings of the 14th IEEE Pacific Rim International Symposium on Dependable Computing, 2008

Availability optimization in operational software system with aperiodic time-based software rejuvenation scheme.
Proceedings of the IEEE International Conference on Software Reliability Engineering Workshops, 2008

Analysis of a Software System with Rejuvenation, Restoration and Checkpointing.
Proceedings of the Service Availability, 5th International Service Availability Symposium, 2008

2007
A generalized gamma software reliability model.
Syst. Comput. Jpn., 2007

Estimating Markov-modulated compound Poisson processes.
Proceedings of the 2nd International Conference on Performance Evaluation Methodolgies and Tools, 2007

Quantifying Software Maintainability Based on a Fault-Detection/Correction Model.
Proceedings of the 13th IEEE Pacific Rim International Symposium on Dependable Computing (PRDC 2007), 2007

Statistical Inference of Computer Virus Propagation Using Non-Homogeneous Poisson Processes.
Proceedings of the ISSRE 2007, 2007

Performance Evaluation for Automatic Protection Switching in a CDMA-TDD Wireless Communication System.
Proceedings of the Human-Computer Interaction. HCI Applications and Services, 2007

Variational Bayesian Approach for Interval Estimation of NHPP-Based Software Reliability Models.
Proceedings of the 37th Annual IEEE/IFIP International Conference on Dependable Systems and Networks, 2007

Bivariate Software Fault-Detection Models.
Proceedings of the 31st Annual International Computer Software and Applications Conference, 2007

2006
Distribution-Free Checkpoint Placement Algorithms Based on Min-Max Principle.
IEEE Trans. Dependable Secur. Comput., 2006

Discrete-time cost analysis for a telecommunication billing application with rejuvenation.
Comput. Math. Appl., 2006

On the Effect of Fault Removal in Software Testing - Bayesian Reliability Estimation Approach.
Proceedings of the 17th International Symposium on Software Reliability Engineering (ISSRE 2006), 2006

Building Phase-Type Software Reliability Models.
Proceedings of the 17th International Symposium on Software Reliability Engineering (ISSRE 2006), 2006

Estimating Markov Modulated Software Reliability Models via EM Algorithm.
Proceedings of the Second International Symposium on Dependable Autonomic and Secure Computing (DASC 2006), 29 September, 2006

2005
Rejuvenating Communication Network System under Burst Arrival Circumstances.
IEICE Trans. Commun., 2005

Markovian Modeling and Analysis of Internet Worm Propagation.
Proceedings of the 16th International Symposium on Software Reliability Engineering (ISSRE 2005), 2005

Effect of preventive rejuvenation in communication network system with burst arrival.
Proceedings of the 2005 International Symposium on Autonomous Decentralized Systems, 2005

A Dynamic Programming Algorithm for Software Rejuvenation Scheduling under Distributed Computation Circumstance.
Proceedings of the 11th International Conference on Parallel and Distributed Systems, 2005

An Architecture-based Software Reliability Model with Finite Number of Faults.
Proceedings of the IASTED International Conference on Software Engineering, 2005

Performance Evaluation of Power-Aware Communication Network Devices.
Proceedings of the Embedded and Ubiquitous Computing, 2005

Gompertz Software Reliability Model and Its Application.
Proceedings of the 29th Annual International Computer Software and Applications Conference, 2005

2004
A Dynamic Checkpointing Scheme Based on Reinforcement Learning.
Proceedings of the 10th IEEE Pacific Rim International Symposium on Dependable Computing (PRDC 2004), 2004

EM algorithms for logistic software reliability models.
Proceedings of the IASTED International Conference on Software Engineering, 2004

EM Algorithm for Discrete Software Reliability Models: A Unified Parameter Estimation Method.
Proceedings of the 8th IEEE International Symposium on High-Assurance Systems Engineering (HASE 2004), 2004

Min-Max Checkpoint Placement under Incomplete Failure Information.
Proceedings of the 2004 International Conference on Dependable Systems and Networks (DSN 2004), 28 June, 2004

2003
Dependability Analysis of a Transaction-Based Multi-Server System with Rejuvenation.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2003

An Iterative Scheme for Maximum Likelihood Estimation in Software Reliability Modeling.
Proceedings of the 14th International Symposium on Software Reliability Engineering (ISSRE 2003), 2003

2002
Refined non-homogeneous markovian models for a single-server type of software system with rejuvenation.
RAIRO Oper. Res., 2002

Cost-Effective Analysis of Software Systems with Periodic Rejuvenation.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2002

Dependability Analysis of a Client/Server Software System with Rejuvenation.
Proceedings of the 13th International Symposium on Software Reliability Engineering (ISSRE 2002), 2002

Estimating Mixed Software Reliability Models Based on the EM Algorithm.
Proceedings of the 2002 International Symposium on Empirical Software Engineering (ISESE 2002), 2002

Discrete Availability Models to Rejuvenate a Telecommunication Billing Application.
Proceedings of the 7th IEEE International Symposium on High-Assurance Systems Engineering (HASE 2002), 2002

2001
Optimal Software Rejuvenation Policy with Discounting.
Proceedings of the 8th Pacific Rim International Symposium on Dependable Computing (PRDC 2001), 2001

2000
Performance analysis of a transaction based software system with shutdown.
Proceedings of the Second International Workshop on Software and Performance, 2000


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