Sandro is a computer scientist interested in spatial complexity, random walks on graphs, population dynamics, urban segregation, mobility and the quantification of these phenomena through graphs and data models.
Currently, he is a PhD Candidate in Complex Systems at School of Mathematical Sciences, Queen Mary University of London, with supervision by Vincenzo Nicosia. His research lies on quantifying the heterogeneity of spatial systems through random walks on graphs with a particular interest on urban segregation.
Previously he had worked as a research associate on a project between Brazilian and British academics entitled RESOLUTION where the cities of London and São Paulo were compared for social segregation and transport accessibility. His MSc used a graph-based approach to quantify topological changes in Sao Paulo’s public transport network at different spatial scales while tested the robustness of the system against simulated attacks. Before the research career, he worked on IT consulting and data solutions for more than 7 years.
Download my resumé.
PhD Candidate in Mathematical Sciences, 2021
Queen Mary University of London
MSc in Complex Systems Modelling, 2015
University of Sao Paulo
PG Cert in Information Management and Business Intelligence, 2013
Business School Sao Paulo
BSc in Computer Network Management, 2008
College Inforium of Technology
The ongoing COVID-19 pandemics disproportionately affects people from Black and African American backgrounds. We propose a model to quantify the dynamic segregation of ethnicities in a city, based on passage times and coverage times of random walks on graphs. The results confirm that knowing where people commute to, rather than where they live, is potentially much more important to contain and curb the spreading of infectious diseases.
Socioeconomic segregation is one of the main factors behind the emergence of large-scale inequalities in urban areas. We propose two non-parametric measures of spatial variance and local spatial diversity, based on the statistical properties of the trajectories of random walks on graphs. We analyse the segregation of synthetic systems and large metropolitan areas in the US and the UK and our results confirm that the spatial variance and local diversity as measured through simple diffusion on graphs provides meaningful insights about the spatial organisation of ethnicities across a city.
I’ve been Demonstrator for the following courses at QMUL: