21 citations · 52 across the 9 of their papers we have counts for
11 papers
Validating a dynamic input-output model for the propagation of supply and demand shocks during the COVID-19 pandemic in Belgium
Tijs W. Alleman, Koen Schoors, Jan M. Baetens
This work validates a dynamic production network model, used to quantify the impact of economic shocks caused by COVID-19 in the UK, using data for Belgium. Because the model was p…
pySODM: Simulating and Optimizing Dynamical Models in Python 3
Tijs W. Alleman, Christian Stevens, Jan M. Baetens
In this work, we present our generic framework to construct, simulate, and calibrate dynamical systems in Python 3. Its goal is to reduce the time it takes to implement a dynamical…
A Stochastic Mobility-Driven Spatially Explicit SEIQRD COVID-19 Model with VOCs, Seasonality, and Vaccines
Tijs W. Alleman, Michiel Rollier, Jenna Vergeynst +1
In this work, we extend our previously developed compartmental SEIQRD model for SARS-CoV-2 in Belgium. We introduce SARS-CoV-2 variants of concern, vaccines, and seasonality in our…
A split-and-perturb decomposition of number-conserving cellular automata
Barbara Wolnik, Anna Nenca, Jan M. Baetens +1
This paper concerns -dimensional cellular automata with the von Neumann neighborhood that conserve the sum of the states of all their cells. These automata, called number-conser…
The Impact of Hurricanes on the Oceanographic Conditions in the Exclusive Economic Zone of Cuba
Dailé Avila-Alonso, Jan M. Baetens, Rolando Cardenas +1
In this work, we analysed the satellite-based responses of sea surface temperature (SST) and chlorophyll-a (chl-a) concentration in the waters of the Exclusive Economic Zone (EEZ)…
Number-conserving cellular automata with a von Neumann neighborhood of range one
Barbara Wolnik, Adam Dzedzej, Jan M. Baetens +1
We present necessary and sufficient conditions for a cellular automaton with a von Neumann neighborhood of range one to be number-conserving. The conditions are formulated for any…
Introducing Lyapunov profiles of cellular automata
Jan M. Baetens, Janko Gravner
In line with the stability theory of continuous dynamical systems, Lyapunov exponents of cellular automata (CAs) have been conceived two decades ago to quantify to what extent thei…
An evolutionary approach to the identification of Cellular Automata based on partial observations
Witold Bołt, Jan M. Baetens, Bernard De Baets
In this paper we consider the identification problem of Cellular Automata (CAs). The problem is defined and solved in the context of partial observations with time gaps of unknown…
A dynamical systems approach to the discrimination of the modes of operation of cryptographic systems
Jeaneth Machicao, Jan M. Baetens, Anderson G. Marco +2
Evidence of signatures associated with cryptographic modes of operation is established. Motivated by some analogies between cryptographic and dynamical systems, in particular with…
On the decomposition of stochastic cellular automata
Witold Bołt, Jan M. Baetens, Bernard DeBaets
In this paper we present two interesting properties of stochastic cellular automata that can be helpful in analyzing the dynamical behavior of such automata. The first property all…
Stability of cellular automata trajectories revisited: branching walks and Lyapunov profiles
Jan M. Baetens, Janko Gravner
We study non-equilibrium defect accumulation dynamics on a cellular automaton trajectory: a branching walk process in which a defect creates a successor on any neighborhood site wh…