Search Results for author: Arnau Quera-Bofarull

Found 5 papers, 3 papers with code

Some challenges of calibrating differentiable agent-based models

no code implementations3 Jul 2023 Arnau Quera-Bofarull, Joel Dyer, Anisoara Calinescu, Michael Wooldridge

Agent-based models (ABMs) are a promising approach to modelling and reasoning about complex systems, yet their application in practice is impeded by their complexity, discrete nature, and the difficulty of performing parameter inference and optimisation tasks.

Bayesian calibration of differentiable agent-based models

no code implementations24 May 2023 Arnau Quera-Bofarull, Ayush Chopra, Anisoara Calinescu, Michael Wooldridge, Joel Dyer

Agent-based modelling (ABMing) is a powerful and intuitive approach to modelling complex systems; however, the intractability of ABMs' likelihood functions and the non-differentiability of the mathematical operations comprising these models present a challenge to their use in the real world.

Bayesian Inference Variational Inference

Differentiable Agent-based Epidemiology

1 code implementation20 Jul 2022 Ayush Chopra, Alexander Rodríguez, Jayakumar Subramanian, Arnau Quera-Bofarull, Balaji Krishnamurthy, B. Aditya Prakash, Ramesh Raskar

Mechanistic simulators are an indispensable tool for epidemiology to explore the behavior of complex, dynamic infections under varying conditions and navigate uncertain environments.

Epidemiology Navigate

Qwind code release. A non-hydrodynamical approach to modelling line-driven winds in active galactic nuclei

1 code implementation14 Jan 2020 Arnau Quera-Bofarull, Chris Done, Cedric Lacey, Jonathan C. McDowell, Guido Risaliti, Martin Elvis

UV line driven winds may be an important part of the AGN feedback process, but understanding their impact is hindered by the complex nature of the radiation hydrodynamics.

High Energy Astrophysical Phenomena Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies

XNet: A convolutional neural network (CNN) implementation for medical X-Ray image segmentation suitable for small datasets

2 code implementations3 Dec 2018 Joseph Bullock, Carolina Cuesta-Lazaro, Arnau Quera-Bofarull

X-Ray image enhancement, along with many other medical image processing applications, requires the segmentation of images into bone, soft tissue, and open beam regions.

Clustering Image Enhancement +4

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