Search Results - "Siettos, Constantinos"

Data-based analysis, modelling and forecasting of the COVID-19 outbreak by Anastassopoulou, Cleo, Russo, Lucia, Tsakris, Athanasios, Siettos, Constantinos

“…Since the first suspected case of coronavirus disease-2019 (COVID-19) on December 1st, 2019, in Wuhan, Hubei Province, China, a total of 40,235 confirmed cases…”
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Mathematical modeling of infectious disease dynamics by Siettos, Constantinos I., Russo, Lucia

“…Over the last years, an intensive worldwide effort is speeding up the developments in the establishment of a global surveillance network for combating…”
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A Complex Network Theory Approach for the Spatial Distribution of Fire Breaks in Heterogeneous Forest Landscapes for the Control of Wildland Fires by Russo, Lucia, Russo, Paola, Siettos, Constantinos I

“…Based on complex network theory, we propose a computational methodology which addresses the spatial distribution of fuel breaks for the inhibition of the…”
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Learning black- and gray-box chemotactic PDEs/closures from agent based Monte Carlo simulation data by Lee, Seungjoon, Psarellis, Yorgos M., Siettos, Constantinos I., Kevrekidis, Ioannis G.

“…We propose a machine learning framework for the data-driven discovery of macroscopic chemotactic Partial Differential Equations (PDEs)—and the closures that…”
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Data-driven modelling of brain activity using neural networks, diffusion maps, and the Koopman operator by Gallos, Ioannis K, Lehmberg, Daniel, Dietrich, Felix, Siettos, Constantinos

“…We propose a machine-learning approach to construct reduced-order models (ROMs) to predict the long-term out-of-sample dynamics of brain activity (and in…”
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Tracing day-zero and forecasting the COVID-19 outbreak in Lombardy, Italy: A compartmental modelling and numerical optimization approach by Russo, Lucia, Anastassopoulou, Cleo, Tsakris, Athanasios, Bifulco, Gennaro Nicola, Campana, Emilio Fortunato, Toraldo, Gerardo, Siettos, Constantinos

“…Italy became the second epicenter of the novel coronavirus disease 2019 (COVID-19) pandemic after China, surpassing by far China's death toll. The disease…”
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Construction of embedded fMRI resting-state functional connectivity networks using manifold learning by Gallos, Ioannis K., Galaris, Evangelos, Siettos, Constantinos I.

“…We construct embedded functional connectivity networks (FCN) from benchmark resting-state functional magnetic resonance imaging (rsfMRI) data acquired from…”
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To infinity and some glimpses of beyond by Kevrekidis, Panayotis G., Siettos, Constantinos I., Kevrekidis, Yannis G.

“…When mathematical and computational dynamic models reach infinity in finite time, extending analysis and numerics beyond it becomes a notorious challenge. We…”
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Isolation of C. difficile Carriers Alone and as Part of a Bundle Approach for the Prevention of Clostridium difficile Infection (CDI): A Mathematical Model Based on Clinical Study Data by Grigoras, Christos A, Zervou, Fainareti N, Zacharioudakis, Ioannis M, Siettos, Constantinos I, Mylonakis, Eleftherios

“…Clostridium difficile infection is the most common hospital-acquired infection. Besides infected patients, carriers have emerged as a key player in C…”
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Multiscale modeling of brain dynamics: from single neurons and networks to mathematical tools by Siettos, Constantinos, Starke, Jens

“…The extreme complexity of the brain naturally requires mathematical modeling approaches on a large variety of scales; the spectrum ranges from single neuron…”
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Task-oriented machine learning surrogates for tipping points of agent-based models by Fabiani, Gianluca, Evangelou, Nikolaos, Cui, Tianqi, Bello-Rivas, Juan M., Martin-Linares, Cristina P., Siettos, Constantinos, Kevrekidis, Ioannis G.

“…We present a machine learning framework bridging manifold learning, neural networks, Gaussian processes, and Equation-Free multiscale approach, for the…”
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Varicella zoster virus transmission dynamics in Vojvodina, Serbia by Medić, Snežana, Katsilieris, Michalis, Lozanov-Crvenković, Zagorka, Siettos, Constantinos I, Petrović, Vladimir, Milošević, Vesna, Brkić, Snežana, Andrews, Nick, Ubavić, Milan, Anastassopoulou, Cleo

“…This study aimed at establishing baseline key epidemiological parameters for varicella zoster virus (VZV) infection in Vojvodina, Serbia, with the ultimate…”
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Reaching to virtual targets: the oblique effect reloaded in 3-D by Kaspiris-Rousellis, Christos, Siettos, Constantinos, Evdokimidis, Ioannis, Smyrnis, Nikolaos

“…Highlights • Memory representation of direction in 2D reveals space expansion at cardinal and contraction at oblique axes (oblique effect). • This study is the…”
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Designing social distancing policies for the COVID-19 pandemic: A probabilistic model predictive control approach by Armaou, Antonios, Katch, Bryce, Russo, Lucia, Siettos, Constantinos

“…The effective control of the COVID-19 pandemic is one the most challenging issues of recent years. The design of optimal control policies is challenging due to…”
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Bautin bifurcations in a forest-grassland ecosystem with human-environment interactions by Russo, Lucia, Spiliotis, Konstantinos, Giannino, Francesco, Mazzoleni, Stefano, Siettos, Constantinos

“…Ecosystems may be characterized by a complex dynamical behaviour where external disturbances and/or internal perturbations may trigger sudden/irreversible…”
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Equation-Free multiscale computational analysis of individual-based epidemic dynamics on networks by Siettos, Constantinos I.

“…The surveillance, analysis and ultimately the efficient long-term prediction and control of epidemic dynamics appear to be some of the major challenges…”
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Correlation of Opioid Mortality with Prescriptions and Social Determinants: A Cross-sectional Study of Medicare Enrollees by Grigoras, Christos A., Karanika, Styliani, Velmahos, Elpida, Alevizakos, Michail, Flokas, Myrto-Eleni, Kaspiris-Rousellis, Christos, Evaggelidis, Ioannis-Nektarios, Artelaris, Panagiotis, Siettos, Constantinos I., Mylonakis, Eleftherios

“…Background The opioid epidemic is an escalating health crisis. We evaluated the impact of opioid prescription rates and socioeconomic determinants on opioid…”
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Editorial: Mathematical modeling of infectious disease dynamics by Siettos, Constantinos I

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Construction of functional brain connectivity networks from fMRI data with driving and modulatory inputs: an extended conditional Granger causality approach by Almpanis, Evangelos, Siettos, Constantinos

“…We propose a numerical-based approach extending the conditional MVAR Granger causality (MVGC) analysis for the construction of directed connectivity networks…”
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Forecasting and control policy assessment for the Ebola virus disease (EVD) epidemic in Sierra Leone using small-world networked model simulations by Siettos, Constantinos I, Anastassopoulou, Cleo, Russo, Lucia, Grigoras, Christos, Mylonakis, Eleftherios

“…ObjectivesAs the Ebola virus disease is still sustained in Sierra Leone, we analysed the epidemic for a recent period (21 December 2014 to 17 April 2015) using…”
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