Results 31 to 40 of about 15,506,173 (331)

Reversed hazard rate order of equilibrium distributions and a related aging notion

open access: yes, 2008
This paper deals with preservation of the reversed hazard rate order between equilibrium random variables under formations of some reliability structures.
Xiao-Hu Li, Mao-Chao Xu
semanticscholar   +1 more source

Ordering results of extreme order statistics from dependent and heterogeneous modified proportional (reversed) hazard variables

open access: yesAIMS Mathematics, 2021
In this paper, we carry out stochastic comparisons on extreme order statistics (i.e. smallest and largest order statistics) from dependent and heterogeneous samples following modified proportional hazard rates (MPHR) and modified proportional reversed ...
Miaomiao Zhang, Bin Lu, Rong-Fang Yan
semanticscholar   +1 more source

Nonparametric Bayesian hazard rate models based on penalized splines [PDF]

open access: yes, 2003
Extensions of the traditional Cox proportional hazard model, concerning the following features are often desirable in applications: Simultaneous nonparametric estimation of baseline hazard and usual fixed covariate effects, modelling and detection of ...
Fahrmeir, Ludwig, Hennerfeind, Andrea
core   +1 more source

Extended Exponentiated Inverse Lindley Distribution: Model, Properties and Applications [PDF]

open access: yesThe Egyptian Statistical Journal, 2019
 In this article, a four-parameter generalization of Lindley distribution is  obtained, with the purpose of obtaining a more flexible model relative to the behavior of hazard rate functions.
Mahmoud A.Eltehiwy
doaj   +1 more source

Dependence properties of multivariate distributions with proportional hazard rate marginals

open access: yes, 2020
In this paper, we introduce a new family of multivariate distributions, so called the multivariate proportional hazard rate family of distributions and study its properties.
Božidar V. Popović   +2 more
semanticscholar   +1 more source

On stochastic comparisons of finite $\alpha$-mixture of additive hazard rate models [PDF]

open access: yesAUT Journal of Mathematics and Computing
This paper discusses stochastic comparisons on the finite $\alpha$-mixture of additive hazard models. Sufficient conditions on the underlying distribution parameters and the mixing probabilities are established for the comparisons of different $\alpha ...
Aqeel Lazam Razzaq   +2 more
doaj   +1 more source

On the restrictiveness of the hazard rate order

open access: yes, 2020
Every element $θ=(θ_1,\ldots,θ_n)$ of the probability $n$-simplex induces a probability distribution $P_θ$ of a random variable $X$ that can assume only a finite number of real values $x_1 < \cdots < x_n$ by defining $P_θ(X=x_i) = θ_i, 1\leq i \leq n$. We show that if $Θ$ and $Θ'$ are two random vectors uniformly distributed on $Δ^n$, then $P(P_Θ\
openaire   +2 more sources

Stochastic Comparison for Extreme Order Statistics Arising from PHR, PRHR or Location Model

open access: yesRevstat Statistical Journal
We have considered series and parallel systems with independent set of random variables belonging from PHR, PRHR family of distributions to study dispersive and star ordering between two systems such that the number of components in both the system are ...
Madhurima Datta , Nitin Gupta
doaj   +1 more source

Pattern of Recurrence and Metastasis after Radical Resection of 
Non-small Cell Lung Cancer

open access: yesChinese Journal of Lung Cancer, 2022
The rate of recurrence and metastasis of non-small cell lung cancer after radical resection is still very high. The risk factors for recurrence and metastasis have been extensively studied, but the dynamic pattern of postoperative recurrence hazard over ...
Xianping LIU, Xiao LI, Fan YANG
doaj   +1 more source

Parameter Estimation for Composite Dynamical Systems Based on Sequential Order Statistics from Burr Type XII Mixture Distribution

open access: yesMathematics, 2021
Considering the impact of the heterogeneous conditions of the mixture baseline distribution on the parameter estimation of a composite dynamical system (CDS), we propose an approach to infer the model parameters and baseline survival function of CDS ...
Tzong-Ru Tsai   +3 more
doaj   +1 more source

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