| Presentation | 2001/5/18 An Estimation of Software Reliability Models Based on EM-Algorithm H. Okamura, Y. Watanabe, T. Dohi, S. Osaki, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose a new statistical estimations method based on the EM-algorithm for software reliability models. Suppose that the software failure occurrence phenomenon is described by a non-homogeneous Poisson process (NHPP). In such a case, the method of maximum likelihood is often used to estimate the model parameters. It is, however, not always useful to solve the logarithmic likelihood equations in viewpoints of computation time and stability of estimates. The present EM algorithm for the NHPP may have an advantage, since it is based on simple finite iteration algorithm but can calculate the maximum likelihood estimates with high speed. We derive concrete EM algorithms for the cases where the software failure occurrence time obeys the exponential, gamma and lognormal distributions, and further compare them with the classical estimation methods. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | software reliability model / general order staticstics model / maximum likelihood method / EM algorithm |
| Paper # | R2001-7 |
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| Conference Information | |
| Committee | R |
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| Conference Date | 2001/5/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Reliability(R) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An Estimation of Software Reliability Models Based on EM-Algorithm |
| Sub Title (in English) | |
| Keyword(1) | software reliability model |
| Keyword(2) | general order staticstics model |
| Keyword(3) | maximum likelihood method |
| Keyword(4) | EM algorithm |
| 1st Author's Name | H. Okamura |
| 1st Author's Affiliation | Department of Information Engineering, Hiroshima University() |
| 2nd Author's Name | Y. Watanabe |
| 2nd Author's Affiliation | Department of Information Engineering, Hiroshima University |
| 3rd Author's Name | T. Dohi |
| 3rd Author's Affiliation | Department of Information Engineering, Hiroshima University |
| 4th Author's Name | S. Osaki |
| 4th Author's Affiliation | Faculty of Mathematical and Information Sciences, Nanzan University |
| Date | 2001/5/18 |
| Paper # | R2001-7 |
| Volume (vol) | vol.101 |
| Number (no) | 88 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |