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We study the allocation strategies for redundant components in the load-sharing series/parallel systems. We show that under the specified assumptions, the allocation of a redundant component to the stochastically weakest (strongest)…

应用统计 · 统计学 2016-02-18 Maxim Finkelstein , Nil Kamal Hazra

In this paper, we consider finite mixture models with modified proportional hazard rates. Sufficient conditions for the usual stochastic order and the hazard order are established under chain majorization. We study stochastic comparisons…

统计理论 · 数学 2024-07-24 Lina Guo

This manuscript investigates the stochastic comparisons of the second-order statistics from dependent and heterogeneous general semi-parametric family of distributions observations. Some sufficient conditions on the usual stochastic order…

统计理论 · 数学 2024-07-29 Guoqiang Lv

We study failure rate monotonicity and generalized convex transform stochastic ordering properties of random variables, with a concern on applications. We are especially interested in the effect of a tail weight iteration procedure to…

概率论 · 数学 2026-01-14 Idir Arab , Milto Hadjikyriakou , Paulo Eduardo Oliveira

A new notion of stochastic ordering is introduced to compare multivariate stochastic risk models with respect to extreme portfolio losses. In the framework of multivariate regular variation comparison criteria are derived in terms of…

风险管理 · 定量金融 2010-10-26 Georg Mainik , Ludger Rüschendorf

Stochastic reaction networks are mathematical models with a wide range of applications in biochemistry, ecology, and epidemiology, and are often complex to analyze. Except for some special cases, it is generally difficult to predict how the…

概率论 · 数学 2026-04-02 Daniele Cappelletti , Giulio Cuniberti , Paola Siri

In this paper we provide a novel family of stochastic orders that generalizes second order stochastic dominance, which we call the $\alpha,[a,b]$-concave stochastic orders. These stochastic orders are generated by a novel set of "very"…

概率论 · 数学 2021-04-28 Bar Light , Andres Perlroth

The concept of "stochastic precedence" between two real-valued random variables has often emerged in different applied frameworks. In this paper we consider a slightly more general, and completely natural, concept of stochastic precedence…

概率论 · 数学 2015-06-17 Emilio De Santis , Fabio Fantozzi , Fabio Spizzichino

In this paper, we studied the stochastic ordering behavior of series as well as parallel systems' lifetimes comprising dependent and heterogeneous components, experiencing random shocks, and exhibiting distinct dependency structures. We…

统计理论 · 数学 2025-05-29 Sarikul Islam , Nitin Gupta

In this work, we establish some stochastic comparison results for multivariate skew-elliptical random vectors. These multivariate stochastic comparisons involve Hessian and increasing-Hessian orderings as well as many of their special…

统计理论 · 数学 2023-04-19 Chuancun Yin

In this paper, we consider two finite mixture models (FMMs), with inverted-Kumaraswamy distributed components' lifetimes. Several stochastic ordering results between the FMMs have been obtained. Mainly, we focus on three different cases in…

统计理论 · 数学 2024-03-08 Raju Bhakta , Pradip Kundu , Suchandan Kayal , Morad Alizadeh

We study very simple sorting algorithms based on a probabilistic comparator model. In our model, errors in comparing two elements are due to (1) the energy or effort put in the comparison and (2) the difference between the compared…

数据结构与算法 · 计算机科学 2018-05-16 Barbara Geissmann , Paolo Penna

In the literature of stochastic orders, one rarely finds results that can be considered as criteria for the non-comparability of random variables. In this paper, we provide results that enable researchers to use simple tools to conclude…

概率论 · 数学 2019-09-09 Idir Arab , Milto Hadjikyriakou , Paulo Eduardo Oliveira

For a bivariate random vector (X,Y), symmetry conditions are presented that yield stochastic orderings among |X|, |Y|, |max(X,Y)|, and | min(X, Y)|. Partial extensions of these results for multivariate random vectors (X1,...,Xn) are also…

统计理论 · 数学 2012-06-22 Yindeng Jiang , Michael D. Perlman

We give a risk-averse solution to the problem of estimating the reliability of a parallel-series system. We adopt a beta-binomial model for components reliabilities, and assume that the total sample size for the experience is fixed. The…

应用统计 · 统计学 2016-11-15 Zohra Benkamra , Mekki Terbeche , Mounir Tlemcani

Stochastic ordering among distributions has been considered in a variety of scenarios. Economic studies often involve research about the ordering of investment strategies or social welfare. However, as noted in the literature, stochastic…

We discuss a new stochastic ordering for the sequence of independent random variables. It generalizes the stochastic precedence order that is defined for two random variables to the case $n>2$. All conventional stochastic orders are…

应用统计 · 统计学 2018-12-11 Maxim Finkelstein , Nil Kamal Hazra

We study stochastic ordering of system lifetimes with dependent and heterogeneous components whose marginal distributions are obtained through transformations of a common baseline. The dependence structure is modeled via Archimedean…

概率论 · 数学 2026-04-30 Idir Arab , Milto Hadjikyriakou , Paulo Eduardo Oliveira

In this paper, we propose a chance constrained stochastic model predictive control scheme for reference tracking of distributed linear time-invariant systems with additive stochastic uncertainty. The chance constraints are reformulated…

最优化与控制 · 数学 2023-03-07 Christoph Mark , Steven Liu

The paper explores the effect of random parameter switching in a fractional order (FO) unified chaotic system which captures the dynamics of three popular sub-classes of chaotic systems i.e. Lorenz, Lu and Chen's family of attractors. The…

混沌动力学 · 物理学 2016-11-30 Saptarshi Das , Indranil Pan , Shantanu Das