10 citations · 19 across the 14 of their papers we have counts for
14 papers
A Shared IPTC Topic Space for Cross-Source Topic Modelling
Din Iskakov, Sebastian Gonçalves, Marco Idiat +4
Comparing topic attention across different media is hindered by a fundamental modelling problem: topic models fitted separately to each corpus produce corpus-specific topic spaces…
Epidemic Extinction in a Continuous SIRS Model with Vaccination
Germano Hartmann Brill, Pablo Enrique Jurado Silvestrin, Sebastian Gonçalves
Epidemics have shaped human history, often with devastating consequences, motivating the development of mathematical models to understand and control their dynamics. Among the many…
The number of spanning trees as an indicator of critical phenomena: When Kirchhoff meets Ising
Roberto da Silva, Henrique A. Fernandes, Paulo G. Freitas +3
Visibility graphs are spatial interpretations of time series. When derived from the time evolution of physical systems, the graphs associated with such series may exhibit propertie…
Limiting risk to reduce inequality: insights from the Yard-Sale model
Lautaro Giordano, Ignacio Cortés, Sebastian Gonçalves +1
Wealth inequality remains a critical socioeconomic challenge, driven by systemic dynamics and self-reinforcing mechanisms that amplify the economic imbalances. Simplified models fr…
Mean-field and Monte Carlo Analysis of Multi-Species Dynamics of agents
Eduardo Velasco Stock, Roberto da Silva, Sebastian Gonçalves
We propose a mean-field (MF) approximation for the recurrence relation governing the dynamics of species of particles on a square lattice, and we simultaneously perform Monte C…
Economic Inequality between Groups in an a priori Stratified Society
Thiago Dias, Sebastián Gonçalves
We present an agent-based model of economic exchange in a society composed of two groups, representing two social groups and with different internal protection rules for the poor a…
Homophilic Effects on Economic Inequality: A Dynamic Network Agent-Based Model
Gustavo L. Kohlrausch, Thiago Dias, Sebastian Gonçalves
Wealth transactions are central to economic activity, and their particularities shape macroeconomic outcomes. We propose an agent-based model to investigate how homophily influence…
One predator and two prey: Coexistence of pumas, guanacos and sheep in Patagonia
Jhordan Silveira de Borba, Sebastian Gonçalves
The ecosystem considered in this study is the outcome of a lengthy sequence of historical and ecological events. Patagonia's indigenous fauna comprises survivors of five significan…
Interplay of Reward and Size of Groups in the Optional Public Goods Game
Eduardo V. Stock, Pablo A. Valverde, Juan Carlos González-Avella +3
The Optional Public Goods Game is a three-strategy game in which an individual can play as a cooperator or defector or decide not to participate. Despite its simplicity, this model…
Effectiveness of wealth-based vs exchange-based tax systems in reducing inequality
Thiago Dias, Sebastián Gonçalves
In the so-called ``fair'' models of peer-to-peer wealth exchanges, economic inequality tends to reach its maximum value asymptotically. This global trend is evident as the richest…
Equal opportunities lead to maximum wealth inequality
Ben-Hur Francisco Cardoso, Sebastián Gonçalves, José Roberto Iglesias
If wealthier people have advantages in having higher returns than poor, inequality will unequivocally increase, but is equal opportunity enough to prevent it? According to several…
Wealth concentration in systems with unbiased binary exchanges
Ben-Hur Francisco Cardoso, Sebastián Gonçalves, José Roberto Iglesias
Aiming to describe the wealth distribution evolution, several models consider an ensemble of interacting economic agents that exchange wealth in binary fashion. Intriguingly, model…
Urban Scaling of COVID-19 epidemics
Ben-Hur Francisco Cardoso, Sebastián Gonçalves
Susceptible-Invective-Recovered (SIR) mathematical models are in high demand due to the COVID-19 pandemic. They are used in their standard formulation, or through the many variants…
Epidemic oscillations: Interaction between delays and seasonality
Guillermo Abramson, Sebastian Gonçalves, Marcelo F. C. Gomes
Traditional epidemic models consider that individual processes occur at constant rates. That is, an infected individual has a constant probability per unit time of recovering from…