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Parameter Estimation of
IEEE Access, 2019 Utilization data are defined as the time series data consisting of time fractions of busy periods in fixed time intervals and are practically used to represent server conditions, such as CPU utilization. In general, it is more challenging to estimate the
Chen Li, Hiroyuki Okamura, Tadashi Dohi
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Predictions of MLE and LSE in NHPP Software Reliability Model [PDF]
Journal of the Chosun Natural Science, 2013 We propose a mean value function for software failures in NHPP software reliability model. And we deal with the maximum likelihood estimation and the least squares estimation in the proposed mean value function. The explicit mean value function solution for the proposed model is presented by MLE and LSE in two data sets.
Kwang-Yoon Song +2 more
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Software Reliability Growth Model with Dependent Failures and Uncertain Operating Environments
Applied Sciences, 2022 Software is used in various industries, and its reliability has become an extremely important issue. For example, in the medical industry, software is used to provide medical services to underprivi-leged individuals. If a problem occurs with the software
Da Hye Lee, In Hong Chang, Hoang Pham
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Applied Sciences, 2018 With the latest technological developments, the software industry is at the center of the fourth industrial revolution. In today’s complex and rapidly changing environment, where software applications must be developed quickly and easily, software ...
Kwang Yoon Song +2 more
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Tellus: Series A, Dynamic Meteorology and Oceanography, 2021 Precipitation has a dominant role in agriculture, and a regular rain pattern is usually vital to agriculture; excessive or inadequate rainfall can be harmful.
Asad Ellahi +4 more
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Altered responses to ghrelin and food cues in AgRP neurons during pregnancy and lactation
Journal of Neuroendocrinology, Volume 38, Issue 6, June 2026.Abstract Pregnancy and lactation trigger many metabolic adaptations, including increased food intake to support the energy demands of the growing foetus and then to provide nutrition through milk production after birth. Ghrelin, an orexigenic hormone, activates agouti related peptide (AgRP) neurons in the arcuate nucleus to promote food intake.
C. L. Murrell +4 more
wiley +1 more source
Wind Energy, Volume 29, Issue 5, May 2026.ABSTRACT As wind energy continues to expand, ensuring the reliability of wind turbines is critical for optimising operational efficiency and minimising downtime. Based on maintenance data from over 1,000 onshore and offshore wind turbines covering more than 4200 operating years, this study presents an analysis of wind turbine failure behaviour over ...
Julia Walgern +3 more
wiley +1 more source
PIECEWISE PSEUDO ESTIMATION FOR NHPP USING DATA IN THE ADJACENT INTERVALS
Journal of the Operations Research Society of Japan, 1999 In modeling a system with NHPP, we generally need to estimate the parameters of its mean function A(
Funaki, Kenichi, Matoba, Hideaki
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Quality and Reliability Engineering International, Volume 42, Issue 3, Page 992-1008, April 2026.ABSTRACT The analysis of a system that deteriorates under imperfect maintenance is essential in reliability engineering. Imperfect maintenance does not fully restore a system to its original condition, leading to complex degradation patterns. Statistical inference techniques allow for precise estimation of degradation parameters, maintenance effects ...
Reza Ahmadi, Mitra Fouladirad
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And then there were none: decrease of origination and the decline of Conulariida
Papers in Palaeontology, Volume 12, Issue 2, March/April 2026.Abstract Although the evolutionary history of conulariids has been widely studied, previous works have focused mostly on limited time intervals. In this paper, we examine the diversity dynamics of the group throughout its entire history, using various mathematical approaches.
Julio Bernad +2 more
wiley +1 more source