Gompertz software reliability model: Estimation algorithm and empirical validation K Ohishi, H Okamura, T Dohi Journal of Systems and software 82 (3), 535-543, 2009 | 190 | 2009 |
Markovian arrival process parameter estimation with group data H Okamura, T Dohi, KS Trivedi IEEE/ACM Transactions on networking 17 (4), 1326-1339, 2009 | 140 | 2009 |
Software reliability growth models with normal failure time distributions H Okamura, T Dohi, S Osaki Reliability Engineering & System Safety 116, 135-141, 2013 | 106 | 2013 |
Optimal control of preventive maintenance schedule and safety stocks in an unreliable manufacturing environment T Dohi, H Okamura, S Osaki International Journal of Production Economics 74 (1-3), 147-155, 2001 | 90 | 2001 |
An iterative scheme for maximum likelihood estimation in software reliability modeling H Okamura, Y Watanabe, T Dohi 14th International Symposium on Software Reliability Engineering, 2003 …, 2003 | 86 | 2003 |
A refined EM algorithm for PH distributions H Okamura, T Dohi, KS Trivedi Performance Evaluation 68 (10), 938-954, 2011 | 67 | 2011 |
Distribution-free checkpoint placement algorithms based on min-max principle T Ozaki, T Dohi, H Okamura, N Kaio IEEE Transactions on Dependable and Secure Computing 3 (2), 130-140, 2006 | 67 | 2006 |
EM algorithm for discrete software reliability models: a unified parameter estimation method H Okamura, A Murayama, T Dohi Eighth IEEE International Symposium on High Assurance Systems Engineering …, 2004 | 66 | 2004 |
SRATS: Software reliability assessment tool on spreadsheet (Experience report) H Okamura, T Dohi 2013 IEEE 24th international symposium on software reliability engineering …, 2013 | 59 | 2013 |
Optimal security patch release timing under non-homogeneous vulnerability-discovery processes H Okamura, M Tokuzane, T Dohi 2009 20th international symposium on software reliability engineering, 120-128, 2009 | 57 | 2009 |
A multi-factor software reliability model based on logistic regression H Okamura, Y Etani, T Dohi 2010 IEEE 21st International Symposium on Software Reliability Engineering …, 2010 | 53 | 2010 |
Faster maximum likelihood estimation algorithms for Markovian arrival processes H Okamura, T Dohi 2009 Sixth international conference on the quantitative evaluation of …, 2009 | 48 | 2009 |
Markovian modeling and analysis of Internet worm propagation H Okamura, H Kobayashi, T Dohi 16th IEEE International Symposium on Software Reliability Engineering (ISSRE …, 2005 | 44 | 2005 |
A fast EM algorithm for fitting marked Markovian arrival processes with a new special structure G Horváth, H Okamura European Workshop on Performance Engineering, 119-133, 2013 | 43 | 2013 |
Quantifying software maintainability based on a fault-detection/correction model K Shibata, K Rinsaka, T Dohi, H Okamura 13th Pacific Rim International Symposium on Dependable Computing (PRDC 2007 …, 2007 | 40 | 2007 |
A reliability assessment method for software products in operational phase—Proposal of an accelerated life testing model H Okamura, T Dohi, S Osaki Electronics and Communications in Japan (Part III: Fundamental Electronic …, 2001 | 40 | 2001 |
Estimating mixed software reliability models based on the EM algorithm H Okamura, Y Watanabe, T Dohi Proceedings international symposium on empirical software engineering, 69-78, 2002 | 39 | 2002 |
Building phase-type software reliability models H Okamura, T Dohi 2006 17th International Symposium on Software Reliability Engineering, 289-298, 2006 | 35 | 2006 |
mapfit: An R-based tool for PH/MAP parameter estimation H Okamura, T Dohi Quantitative Evaluation of Systems: 12th International Conference, QEST 2015 …, 2015 | 34 | 2015 |
Dynamic software rejuvenation policies in a transaction-based system under Markovian arrival processes H Okamura, T Dohi Performance Evaluation 70 (3), 197-211, 2013 | 34 | 2013 |