167 citations · 1.1k across the 32 of their papers we have counts for
26 papers · 1 filter
Popularity Trajectories and Mixing Patterns of Urban Venues in Two European Cities
Wang Ngai Yeung, Lakmal Meegahapola, Daniele Quercia +1
Urban venues such as restaurants, shops, bars and parks host the daily life of a city, and their collective rise and fall signals how vibrant a neighbourhood is. The usual assumpti…
Polarization and Integration in Global AI Research
Luca Gallo, Riccardo Di Clemente, Balázs Lengyel
The AI race amplifies security risks and international tensions. While the US restricts mobility and knowledge flows, challenges regulatory efforts to protect its advantage, China…
Evolution and determinants of firm-level systemic risk in local production networks
Anna Mancini, Balázs Lengyel, Riccardo Di Clemente +1
Recent crises like the Covid-19 pandemic and geopolitical tensions have exposed vulnerabilities and caused disruptions of supply chains, leading to product shortages, increased cos…
Understanding Urban-Rural Disparities in Mobility Inefficiency for Colombia, Mexico, and India
Nandini Iyer, Massimiliano Luca, Riccardo Di Clemente
Rural and urban areas exhibit distinct mobility patterns, yet a systematic understanding of how these trends differ across regions and contexts remains underexplored. By using orig…
Garbage in Garbage out: Impacts of data quality on criminal network intervention
Wang Ngai Yeung, Riccardo Di Clemente, Renaud Lambiotte
Criminal networks such as human trafficking rings are threats to the rule of law, democracy and public safety in our global society. Network science provides invaluable tools to id…
The rise and fall of WallStreetBets: social roles and opinion leaders across the GameStop saga
Anna Mancini, Antonio Desiderio, Giovanni Palermo +2
Nowadays human interactions largely take place on social networks, with online users' behavior often falling into a few general typologies or "social roles". Among these, opinion l…
Understanding vehicular routing behavior with location-based service data
Yanyan Xu, Riccardo Di Clemente, Marta C. Gonzalez
Properly extracting patterns of individual mobility with high resolution data sources such as the one extracted from smartphone applications offers important opportunities. Potenti…
Spontaneous Opinion Swings in the Voter Model with Latency
Giovanni Palermo, Anna Mancini, Antonio Desiderio +2
The cognitive process of opinion formation is often characterized by stubbornness or resistance of agents to changes of opinion. To capture such a feature we introduce a constant l…
Time-space dynamics of income segregation: a case study of Milan's neighbourhoods
Lavinia Rossi Mori, Vittorio Loreto, Riccardo Di Clemente
Traditional approaches to urban income segregation focus on static residential patterns, often failing to capture the dynamic nature of social mixing at the neighborhood level. Lev…
Highly engaging events reveal semantic and temporal compression in online community discourse
Antonio Desiderio, Anna Mancini, Giulio Cimini +1
People nowadays express their opinions in online spaces, using different forms of interactions such as posting, sharing and discussing with one another. How do these digital traces…
Spatiotemporal gender differences in urban vibrancy
Thomas Collins, Riccardo Di Clemente, Mario Gutiérrez-Roig +1
Urban vibrancy is the dynamic activity of humans in urban locations. It can vary with urban features and the opportunities for human interactions, but it might also differ accordin…
COVID-19 is linked to changes in the time-space dimension of human mobility
Clodomir Santana, Federico Botta, Hugo Barbosa +3
Socio-economic constructs and urban topology are crucial drivers of human mobility patterns. During the coronavirus disease 2019 pandemic, these patterns were reshaped in their com…
Self-induced consensus of Reddit users to characterise the GameStop short squeeze
Anna Mancini, Antonio Desiderio, Riccardo Di Clemente +1
The short squeeze of GameStop (GME) shares in mid-January 2021 has been primarily orchestrated by retail investors of the Reddit r/wallstreetbets community. As such, it represents…
Urbanization and Economic Complexity
Riccardo Di Clemente, Emanuele Strano, Michael Batty
Urbanization plays a crucial role in the economic development of every country. The mutual relationship between the urbanization of any country and its economic productive structur…
Inequality is rising where social network segregation interacts with urban topology
Gergő Tóth, Johannes Wachs, Riccardo Di Clemente +4
Social networks amplify inequalities due to fundamental mechanisms of social tie formation such as homophily and triadic closure. These forces sharpen social segregation reflected…
Reconstructing mesoscale network structures
Jeroen van Lidth de Jeude, Riccardo Di Clemente, Guido Caldarelli +2
When facing complex mesoscale network structures, it is generally believed that (null) models encoding the modular organization of nodes must be employed. The present paper focuses…
The role of geography in the complex diffusion of innovations
Balázs Lengyel, Eszter Bokányi, Riccardo Di Clemente +2
The urban-rural divide is increasing in modern societies calling for geographical extensions of social influence modelling. Improved understanding of innovation diffusion across lo…
Complex delay dynamics on railway networks: from universal laws to realistic modelling
Bernardo Monechi, Pietro Gravino, Riccardo di Clemente +1
Railways are a key infrastructure for any modern country. The reliability and resilience of this peculiar transportation system may be challenged by different shocks such as disrup…
Sequences of purchases in credit card data reveal life styles in urban populations
Riccardo Di Clemente, Miguel Luengo-Oroz, Matias Travizano +3
Zipf-like distributions characterize a wide set of phenomena in physics, biology, economics and social sciences. In human activities, Zipf-laws describe for example the frequency o…
The Build-Up of Diversity in Complex Ecosystems
Andrea Tacchella, Riccardo Di Clemente, Andrea Gabrielli +1
Diversity is a fundamental feature of ecosystems, even when the concept of ecosystem is extended to sociology or economics. Diversity can be intended as the count of different item…
Inferring monopartite projections of bipartite networks: an entropy-based approach
Fabio Saracco, Mika J. Straka, Riccardo Di Clemente +3
Bipartite networks are currently regarded as providing a major insight into the organization of many real-world systems, unveiling the mechanisms driving the interactions occurring…
From innovation to diversification: a simple competitive model
Fabio Saracco, Riccardo Di Clemente, Andrea Gabrielli +1
Few attempts have been proposed in order to describe the statistical features and historical evolution of the export bipartite matrix countries/products. An important standpoint is…
Detecting early signs of the 2007-2008 crisis in the world trade
Fabio Saracco, Riccardo Di Clemente, Andrea Gabrielli +1
Since 2007, several contributions have tried to identify early-warning signals of the financial crisis. However, the vast majority of analyses has focused on financial systems and…
Randomizing bipartite networks: the case of the World Trade Web
Fabio Saracco, Riccardo Di Clemente, Andrea Gabrielli +1
Within the last fifteen years, network theory has been successfully applied both to natural sciences and to socioeconomic disciplines. In particular, bipartite networks have been r…