Search Results - "O’Reilly, Małgorzata M."
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A stochastic model for the patient-bed assignment problem with random arrivals and departures
Published in Annals of operations research (01-08-2022)“…We consider the patient-to-bed assignment problem that arises in hospitals. Both emergency patients who require hospital admission and elective patients who…”
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The Shape of Phylogenies Under Phase-Type Distributed Times to Speciation and Extinction
Published in Bulletin of mathematical biology (01-10-2022)“…Phylogenetic trees describe relationships between extant species, but beyond that their shape and their relative branch lengths can provide information on…”
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Matrix-analytic methods for the analysis of stochastic fluid-fluid models
Published in Stochastic models (03-07-2022)“…Stochastic fluid-fluid models (SFFMs) offer powerful modeling ability for a wide range of real-life systems of significance. The existing theoretical framework…”
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Stochastic model for maintenance in continuously deteriorating systems
Published in European journal of operational research (16-06-2017)“…•We present Stochastic Model for Maintenance in continuously deteriorating systems.•The model uses a continuous deterioration level.•Deterioration depends on…”
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Multi-stage stochastic fluid models for congestion control
Published in European journal of operational research (16-10-2014)“…•We present multi-stage stochastic fluid models for congestion control.•These models are driven by applications in telecommunications and manufacturing.•We use…”
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A robust multi-kernel change detection framework for detecting leaf beetle defoliation using Landsat 7 ETM+ data
Published in ISPRS journal of photogrammetry and remote sensing (01-12-2016)“…A robust non-parametric framework, based on multiple Radial Basic Function (RBF) kernels, is proposed in this study, for detecting land/forest cover changes…”
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Construction of algorithms for discrete-time quasi-birth-and-death processes through physical interpretation
Published in Stochastic models (02-04-2020)“…We apply physical interpretations to construct algorithms for the key matrix G of discrete-time quasi-birth-and-death (dtQBD) processes which records the…”
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On the decision support model for the patient admission scheduling problem with random arrivals and departures: A solution approach
Published in Stochastic models (02-04-2020)“…The focus of this work is the numerical application of a stochastic decision support model for the patient admission scheduling problem with random arrivals…”
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A Discontinuous Galerkin Method for Approximating the Stationary Distribution of Stochastic Fluid-Fluid Processes
Published in Methodology and computing in applied probability (01-12-2022)“…The stochastic fluid-fluid model (SFFM) is a Markov process { ( X t , Y t , φ t ) , t ≥ 0 } , where { φ t , t ≥ 0 } is a continuous-time Markov chain, the…”
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Stationary distributions for a class of Markov-modulated tandem fluid queues
Published in Stochastic models (02-10-2017)“…We consider a model consisting of two fluid queues driven by the same background continuous-time Markov chain, such that the rates of change of the fluid in…”
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Level-dependent QBD models for the evolution of a family of gene duplicates
Published in Stochastic models (02-04-2020)“…A gene family is a set of evolutionarily related genes formed by duplication. Genes within a gene family can perform a range of different but possibly…”
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Analysis of a mechanistic Markov model for gene duplicates evolving under subfunctionalization
Published in BMC evolutionary biology (31-01-2017)“…Gene duplication has been identified as a key process driving functional change in many genomes. Several biological models exist for the evolution of a pair of…”
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Models for the retention of duplicate genes and their biological underpinnings [version 2; peer review: 2 approved]
Published in F1000 research (01-01-2023)“…Gene content in genomes changes through several different processes, with gene duplication being an important contributor to such changes. Gene duplication…”
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The stochastic fluid–fluid model: A stochastic fluid model driven by an uncountable-state process, which is a stochastic fluid model itself
Published in Stochastic processes and their applications (01-05-2014)“…We introduce the Stochastic Fluid–Fluid Model, which offers powerful modeling ability for a wide range of real-life systems of significance. We first derive…”
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On the generalized reward generator for stochastic fluid models: A new equation for Ψ
Published in Stochastic models (02-10-2017)“…We construct a generalized reward matrix which is an extension of the fluid generator Q(s) of a stochastic fluid model (SFM). We consider the generators that…”
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A Stochastic Fluid Flow Model of the Operation and Maintenance of Power Generation Systems
Published in IEEE transactions on power systems (01-08-2010)“…A tool to inform strategic decision making on electricity market bidding prices, based on prediction of long-term system operation, degradation, and…”
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Models for the retention of duplicate genes and their biological underpinnings [version 1; peer review: 2 approved]
Published in F1000 research (2023)“…Gene content in genomes changes through several different processes, with gene duplication being an important contributor to such changes. Gene duplication…”
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A Stochastic Two-Dimensional Fluid Model
Published in Stochastic models (01-02-2013)“…We introduce a Stochastic Two-Dimensional Fluid Model that consists of two stochastic fluid flows driven by the same underlying Markov chain, where one of the…”
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Performance measures of a multi-layer Markovian fluid model
Published in Annals of operations research (01-04-2008)“…Our goal is to model the behaviour of the fluid in a buffer with threshold controls with a wide range of behaviour possible at the boundaries. To model this,…”
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Loss rates for stochastic fluid models
Published in Performance evaluation (01-09-2013)“…We introduce loss rates, a novel class of performance measures for Markovian stochastic fluid models and discuss their applications potential. We derive…”
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