Results 41 to 50 of about 1,736,707 (316)
On Moments of Discrete Phase-Type Distributions [PDF]
, 2005 Recently, an efficient and stable method to compute moments of first passage times from a subset of states classified as safe to the other states in ergodic discrete-time Markov chains (DTMCs) has been proposed. This paper shows that the same method can be used to compute moments of discrete phase-type (DPH) distributions, analyzes its complexity on ...
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Mathematics, 2021 A new probability distribution to study lifetime data in reliability is introduced in this paper. This one is a first approach to a non-homogeneous phase-type distribution. It is built by considering one cut-point in the non-negative semi-line of a phase-
Christian Acal +3 more
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A Queueing System with Heterogeneous Impatient Customers and Consumable Additional Items
International Journal of Applied Mathematics and Computer Science, 2017 A single-server queueing system with a marked Markovian arrival process of heterogeneous customers is considered. Type-1 customers have limited preemptive priority over type-2 customers.
Baek Janghyun, Dudina Olga, Kim Chesoong
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On the Representation of Correlated Exponential Distributions by Phase Type Distributions
ACM SIGMETRICS Performance Evaluation Review, 2022 In this paper we present results for bivariate exponential distributions which are represented by phase type distributions. The paper extends results from previous publications [3, 11] on this topic by introducing new representations that require a smaller number of phases to reach some correlation coefficient and introduces different ways to describe ...
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Moment Distributions of Phase Type [PDF]
Stochastic Models, 2011 Moment distributions of phase-type and matrix-exponential distributions are shown to remain within their respective classes. We provide a probabilistic phase-type representation for the former case and an alternative representation, with an analytically appealing form, for the latter.
Bladt, Mogens +1 more
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Design of a Three-Phase Shell-Type Distribution Transformer Using Evolutionary Algorithms
Energies, 2023 In this paper, three metaheuristic optimization algorithms: genetic algorithm (GA), particle swarm optimization (PSO), and differential evolution (DE) are compared in terms of minimizing the total owning cost (TOC) of the active part of a three-phase ...
Juan Carlos Olivares-Galvan +4 more
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Modeling of residence time distribution : application to a three-phase inverse fluidized bed based on a Mellin transform [PDF]
, 2009 The study is focused on modeling of gas and liquid residence time distribution in an aerated liquid system of an inverse fluidized bed bioreactor. Two opposite strategies are currently available: the use of powerful complex computational fluid dynamics ...
Nikov, Iordan +2 more
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CMPH: a multivariate phase-type aggregate loss distribution
Dependence Modeling, 2017 We introduce a compound multivariate distribution designed for modeling insurance losses arising from different risk sources in insurance companies.
Ren Jiandong, Zitikis Ricardas
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Uneven key pre-distribution scheme for multi-phase wireless sensor networks [PDF]
, 2013 In multi-phase Wireless Sensor Networks (WSNs), sensor nodes are redeployed periodically to replace nodes whose batteries are depleted. In order to keep the network resilient against node capture attacks across different deployment epochs, called ...
Çatakoğlu, Abdullah Onur, Levi, Albert
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source