Modeling the spatial growth of cities
https://arxiv.org/abs/2510.03045

Universal Model of Urban Street Networks
https://arxiv.org/abs/2509.21931

Strikingly, the shortest-path percolation homogenizes scale-free networks before the phase transition, resulting in the same universality class as the Erdős–Rényi Networks!

Check out our new preprint on arXiv: arxiv.org/abs/2509.09142

From lines to networks
https://arxiv.org/abs/2509.07951

Looks more complicated than it is. In our recent study journals.plos.org/plosone/arti... we search for an optimum city size, minimizing both urban carbon emissions and urban heat island (constraint: fundamental allometry). It turns out that given the known UHI parameters such optimum does not exist.

Wide coverage of social media and disinformation analysis yesterday from our lab at the @css-conference.bsky.social, with four talks presenting our works associate to the European projects #AI4TRUST #AICODE_EU #HATEDEMICS

Also seen yesterday at @css-conference.bsky.social a work on reinforcement learning applied to ants behaviour by Alessio Pitteri, our study of the historical evolution of EU projects by @verorsanigo.bsky.social and the study on Coordinated Behavior by @elisamurators.bsky.social #CCS2025

commercial spaces are organized across a city.

these patterns naturally come from clusters of places that share similar activity levels, even if they’re not next to each other. By connecting what happens locally to the bigger city-size distribution—both analytically and empirically—we show how power-law patterns can emerge in the way ...

New pre-print out ! Work led by @eleandre.bsky.social, in collaboration with M. Napolitano and @ricgallotti.bsky.social. Using Foursquare data from Bologna, we find that the distribution of POIs follows a clear power-law pattern at the city scale. To explain this, we introduce a framework where ...

Scale-free Points-of-Interest Distribution in a City Emerging from Homogeneous Poissonian-point Processes
https://arxiv.org/abs/2509.01699

Yesterday was our first day at @css-conference.bsky.social
in Siena 🇮🇹. We presented on Telegram data collection @elisamurators.bsky.social , city growth @ulyssemarquis.bsky.social and urban traffic (Alberto Amaduzzi). Excited for 5 more talks today! #CCS2025

Very interesting study on social contagion applied in a historical context by @szapperi.bsky.social and collaborators. Powerful example of where good historical data can lead us in the future.

www.nature.com/articles/s41...

Pour ce que ça vaut, je recopie ci-dessous un fil que j'ai posté sur Twitter en 2022, où je tente de raconter les bases fondamentales de la thermodynamique à tout le monde, d'une manière que j'espère pédagogique. 🧵⤵️ •1/24

Opinion dynamics: Statistical physics and beyond

arxiv.org/abs/2507.11521

Geometric Criticality in Scale-Invariant Networks
https://arxiv.org/abs/2507.11348

When dialects collide: how socioeconomic mixing affects language use epjdatascience.springeropen.com/articles/10....

So excited to see this come together! 🎉

Our latest study explores the interplay between science and misinformation in public debates during COVID-19 🔍 arxiv.org/abs/2507.01481

👇Take a look

Phys. Rep.: Introduction to correlation networks: Interdisciplinary approaches beyond thresholding
https://www.sciencedirect.com/science/article/pii/S0370157325001784?dgcid=rss_sd_all

#Skyscrapers remain controversial, yet the continue to be built world over? Why do we build #cities in the sky?
buildingtheskyline.org/cities-in-th...

Stuck inside hiding from the heat? You're not alone - especially when respiratory viruses are in the air indoors. Make sure not to miss this new study: we found that if just 10% of people mask during wildfires, it could offset increases in flu, RSV, and Covid-19. journals.plos.org/climate/arti...

Thanks Esteban, glad to read you found it interesting! In this paper we did not consider vertical expansion of cities, both because of the lack of fine-grained data and for simplification. Finding empirical laws on the height profiles of cities is an interesting and open question!

How do cities expand?
Using surface growth physics, we found a unique exponent governing their local geometry. Instead, their dynamics range from smooth diffusion to abrupt coalescence, with demographic pressure driving where each city lands on that spectrum.

arxiv.org/abs/2506.10656