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20012026
most citedEstimation of extended mixed models using latent classes and latent processes: the R package lcmm

1.1k citations

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16 papers · 1 filter

math.PR2025

Simulations of multivariate gamma distributions and multifactor gamma distributions

Philippe Bernardoff, Bénédicte Puig

This article provides a general expression for infinitely divisible multivariate gamma distributions defined by their Laplace transforms, as well as the conditional Laplace transfo…

math.PR2024

Two stochastic versions of the Arps curve decline

Christian Paroissin

Based on the Arps equation, we propose two stochastic models for curve decline useful in oil engineering context. Theoretical properties and simulations of these models are provide…

math.PR2019★ 1 cited

Analysis of non-reversible Markov chains via similarity orbit

Michael C. H. Choi, Pierre Patie

In this paper, we develop an in-depth analysis of non-reversible Markov chains on denumerable state space from a similarity orbit perspective. In particular, we study the class of…

math.PR2017★ 25 cited

The scale functions kit for first passage problems of spectrally negative Levy processes, and applications to the optimization of dividends

Florin Avram, Danijel Grahovac, Ceren Vardar-Acar

First passage problems for spectrally negative Lévy processes with possible absorbtion or/and reflection at boundaries have been widely applied in mathematical finance, risk, queue…

math.PR2014★ 38 cited

Joint signature of two or more systems with applications to multistate systems made up of two-state components

Jean-Luc Marichal, Pierre Mathonet, Jorge Navarro +1

The structure signature of a system made up of components having continuous and i.i.d. lifetimes was defined in the eighties by Samaniego as the -tuple whose -th coordina…

math.PR2014★ 21 cited

A random shock model with mixed effect, including competing soft and sudden failures, and dependence

Sophie Mercier, H. H. Pham

A system is considered, which is subject to external and possibly fatal shocks, with dependence between the fatality of a shock and the system age. Apart from these shocks, the sys…

math.PR2012★ 3 cited

On matrix exponential approximations of the infimum of a spectrally negative Levy process

Florin Avram, Andras Horvath, M. R. Pistorius

We recall four open problems concerning constructing high-order matrix-exponential approximations for the infimum of a spectrally negative Levy process (with applications to first-…

math.PR2012★ 1 cited

Limit theorems for additive functionals of stationary fields, under integrability assumptions on the higher order spectral densities

Florin Avram, Nikolai Leonenko, Ludmila Sakhno

We prove central limit theorems for additive functionals of stationary fields under integrability conditions on the higher-order spectral densities, which are derived using the Hol…

math.PR2012

Passage times of perturbed subordinators with application to reliability

Christian Paroissin, Landy Rabehasaina

We consider a wide class of increasing Lévy processes perturbed by an independent Brownian motion as a degradation model. Such family contains almost all classical degradation mode…

math.PR2011★ 43 cited

On Gerber-Shiu functions and optimal dividend distribution for a Lévy risk process in the presence of a penalty function

F. Avram, Z. Palmowski, M. R. Pistorius

This paper concerns an optimal dividend distribution problem for an insurance company whose risk process evolves as a spectrally negative Lévy process (in the absence of dividend p…

math.PR2010★ 3 cited

A Lie systems approach for the first passage-time of piecewise deterministic processes

Florin Avram, José F. Cariñena, Javier de Lucas

Our paper illustrates how the theory of Lie systems allows recovering known results and provide new examples of piecewise deterministic processes with phase-type jumps for which th…

math.PR2010

Limiting behavior of the search cost distribution for the move-to-front rule in the stable case

Fabrizio Leisen, Antonio Lijoi, Christian Paroissin

Move-to-front rule is a heuristic updating a list of n items according to requests. Items are required with unknown probabilities (or popularities). The induced Markov chain is kno…

math.PR2008★ 69 cited

Exit problem of a two-dimensional risk process from the quadrant: Exact and asymptotic results

Florin Avram, Zbigniew Palmowski, Martijn R. Pistorius

Consider two insurance companies (or two branches of the same company) that divide between them both claims and premia in some specified proportions. We model the occurrence of cla…

math.PR2007★ 1 cited

A two-dimensional ruin problem on the positive quadrant

Florin Avram, Zbigniew Palmowski, Martijn Pistorius

In this paper we study the joint ruin problem for two insurance companies that divide between them both claims and premia in some specified proportions (modeling two branches of th…

math.PR2007★ 319 cited

On the optimal dividend problem for a spectrally negative Lévy process

Florin Avram, Zbigniew Palmowski, Martijn R. Pistorius

In this paper we consider the optimal dividend problem for an insurance company whose risk process evolves as a spectrally negative Lévy process in the absence of dividend payments…

math.PR2005★ 2 cited

Limiting search cost distribution for the move-to-front rule with random request probabilities

Javiera Barrera, Thierry Huillet, Christian Paroissin

Consider a list of files whose popularities are random. These files are updated according to the move-to-front rule and we consider the induced Markov chain at equilibrium. We…