Results 31 to 40 of about 287,761 (311)
Modelling of non‐Markovian queuing systems
Technological and Economic Development of Economy, 2006 The purpose of this paper is to suggest a method and software for evaluating queuing approximations. A numerical queuing model with priorities is used to explore the behaviour of exponential phase‐type approximation of service‐time distribution.
Giedrius Mickevičius +1 more
doaj +1 more source
Aerosol extinction-to-backscatter ratio derived from passive satellite measurements [PDF]
Atmospheric Chemistry and Physics, 2013 Spaceborne reflectance measurements from the POLDER instrument are used to study the specific directional signature close to the backscatter direction.
F.-M. Bréon
doaj +1 more source
Recursive Approaches for Multi-Layer Dividend Strategies in a Phase-Type Renewal Risk Model
Risks, 2022 In this paper we consider a risk model with two independent classes of insurance risks in the presence of a multi-layer dividend strategy. We assume that both of the claim number processes are renewal processes with phase-type inter-arrival times.
Apostolos D. Papaioannou, Lewis Ramsden
doaj +1 more source
Journal of Telecommunications and Information Technology, 2013 Currently it is assumed that requirements of the information society for delivering multimedia services will be satisfied by the Next Generation Network (NGN) architecture, which includes elements of the IP Multimedia Subsystem (IMS) solution.
Sylwester Kaczmarek, Maciej Sac
doaj +1 more source
Isoscalar Giant Octupole Resonance ISGOR of 116Cd using Self-Consistent Skyrme QRPA
East European Journal of Physics, 2023 Collective models based on the random phase approximation (RPA) are widely used to accurately depict collective modes of response. They can quickly calculate the strength function for the entire nuclear mass range.
Maryam A. Akbar, Ali H. Taqi
doaj +1 more source
Inhomogeneous phase-type distributions and heavy tails [PDF]
Journal of Applied Probability, 2019 AbstractWe extend the construction principle of phase-type (PH) distributions to allow for inhomogeneous transition rates and show that this naturally leads to direct probabilistic descriptions of certain transformations of PH distributions. In particular, the resulting matrix distributions enable the carrying over of fitting properties of PH ...
Hansjörg Albrecher, Mogens Bladt
openaire +6 more sources
IEEE Access, 2020 To address the problem that high-reliability and long-life complex products are susceptible to coupled fault mechanisms, and to address the challenge of constructing a macro fault behavior model for reliability evaluation, the reliability of a smart ...
Dan Xu, Xiaoqi Xiao, Yu Haibo
doaj +1 more source
On the Relation between Phase-Type Distributions and Positive Systems
Abstract and Applied Analysis, 2015 The relation between phase-type representation and positive system realization in both the discrete and continuous time is discussed. Using the Perron-Frobenius theorem of nonnegative matrix theory, a transformation from positive realization to phase ...
Kyungsup Kim
doaj +1 more source
Determination of Best Fit Probability Distribution and Frequency Analysis of Threshold Rainfall under different Climate Change Scenarios [PDF]
Water Harvesting Research, 2021 It is necessary to study and analyze the frequency of extreme rainfall events to determine the best-fit distribution that can predict the occurrence of the certain natural phenomena such as rainfall, flood, etc.
Hassan Alipour +4 more
doaj +1 more source
On Hitting Times for Markov Time Series of Counts with Applications to Quality Control
Revstat Statistical Journal, 2016 Examples of time series of counts arise in several areas, for instance in epidemiology, industry, insurance and network analysis. Several time series models for these counts have been proposed and some are based on the binomial thinning operation ...
Manuel Cabral Morais , António Pacheco
doaj +1 more source