| Presentation | 2015-05-22 Nonparametric estimation in software reliability assessment based on non-homogeneous gamma processes Yasuhiro Saito, Tadashi Dohi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper we extend non-homogeneous gamma process (NHGP)-based software reliability models (SRMs) by Ishii and Dohi (2008) from both view points of modeling and parameter estimation. In modeling, we generalize the underlying NHGP-based SRMs to those for eleven kinds of trend function, which can characterize a variety of software fault-detection patterns. In parameter estimation, we develop a non-parametric maximum likelihood estimation method without the complete knowledge on trend functions, and compare it with the parametric maximum likelihood estimation method. Since an NHGP involves a non-homogeneous Poisson processes (NHPPs) as the simplest case, it is shown that NHGP-based SRMs are much more robust than the common NHPP-based SRMs and that our non-parametric method can improve the goodness-of- t performance of the conventional parametric one. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Software reliability / Non-homogeneous gamma process / Trend function / Non-parametric maximum likelihood estimation / Non-homogeneous poisson process |
| Paper # | R2015-3 |
| Date of Issue | 2015-05-15 (R) |
| Conference Information | |
| Committee | R |
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| Conference Date | 2015/5/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinoshima-Bunka-Kaikan |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Mitsuhiro Kimura(Hosei Univ.) |
| Vice Chair | Hiroyasu Mawatari(NTT) |
| Secretary | Hiroyasu Mawatari(Fujitsu) |
| Assistant | Maratt Zanikef(Kyushu Inst. of Tech.) / Nobuyuki Tamura(Hosei Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Reliability |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Nonparametric estimation in software reliability assessment based on non-homogeneous gamma processes |
| Sub Title (in English) | |
| Keyword(1) | Software reliability |
| Keyword(2) | Non-homogeneous gamma process |
| Keyword(3) | Trend function |
| Keyword(4) | Non-parametric maximum likelihood estimation |
| Keyword(5) | Non-homogeneous poisson process |
| 1st Author's Name | Yasuhiro Saito |
| 1st Author's Affiliation | Hiroshima University(Hiroshima Univ.) |
| 2nd Author's Name | Tadashi Dohi |
| 2nd Author's Affiliation | Hiroshima University(Hiroshima Univ.) |
| Date | 2015-05-22 |
| Paper # | R2015-3 |
| Volume (vol) | vol.115 |
| Number (no) | R-47 |
| Page | pp.pp.13-18(R), |
| #Pages | 6 |
| Date of Issue | 2015-05-15 (R) |