Search Results for author: Alex Viguerie

Found 6 papers, 0 papers with code

The effects of HIV self-testing on HIV incidence and awareness of status among men who have sex with men in the United States: Insights from a novel compartmental model

no code implementations5 Apr 2024 Alex Viguerie, Chaitra Gopalappa, Cynthia M. Lyles, Paul G. Farnham

As self-tests replace a higher percentage laboratory-based testing algorithms, increases in overall testing rates were necessary to ensure reductions in HIV incidence.

Modeling nonlocal behavior in epidemics via a reaction-diffusion system incorporating population movement along a network

no code implementations9 May 2022 Malú Grave, Alex Viguerie, Gabriel F. Barros, Alessandro Reali, Roberto F. S. Andrade, Alvaro L. G. A. Coutinho

Recent works have focused on partial differential equation (PDE) models, particularly reaction-diffusion models, able to describe the progression of an epidemic in both space and time.

Modeling of Asymptotically Periodic Outbreaks: a long-term SIRW2 description of COVID-19?

no code implementations15 Mar 2022 Alex Viguerie, Margherita Carletti, Alessandro Veneziani, Guido Silvestri

As the outbreak of COVID-19 enters its third year, we have now enough data to analyse the behavior of the pandemic with mathematical models over a long period of time.

Coupled and Uncoupled Dynamic Mode Decomposition in Multi-Compartmental Systems with Applications to Epidemiological and Additive Manufacturing Problems

no code implementations12 Oct 2021 Alex Viguerie, Gabriel F. Barros, Malú Grave, Alessandro Reali, Alvaro L. G. A. Coutinho

In these cases, the behavior of the system may not be accurately recreated by applying DMD to a single quantity within the system, as proper knowledge of the system dynamics, even for a single compartment, requires that the behavior of other compartments is taken into account in the DMD process.

Dynamic Mode Decomposition in Adaptive Mesh Refinement and Coarsening Simulations

no code implementations28 Apr 2021 Gabriel F. Barros, Malú Grave, Alex Viguerie, Alessandro Reali, Alvaro L. G. A. Coutinho

The present strategy is applied to challenging AMR/C simulations: a continuous diffusion-reaction epidemiological model for COVID-19, a density-driven gravity current simulation, and a bubble rising problem.

Assessing the spatio-temporal spread of COVID-19 via compartmental models with diffusion in Italy, USA, and Brazil

no code implementations14 Feb 2021 Malú Grave, Alex Viguerie, Gabriel F. Barros, Alessandro Reali, Alvaro L. G. A. Coutinho

Such models are usually defined as compartmental models, in which the population under study is divided into compartments based on qualitative characteristics, with different assumptions about the nature and rate of transfer across compartments.

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