7 papers
Measuring Online Behavior Change with Observational Studies: a Review
Arianna Pera, Gianmarco de Francisci Morales, Luca Maria Aiello
Exploring online behavior change is imperative for societal progress in the context of 21st-century challenges. We analyze 148 articles (2000-2023) focusing on behavior change in t…
DSP: A Statistically-Principled Structural Polarization Measure
Giulia Preti, Matteo Riondato, Aristides Gionis +1
Social and information networks may become polarized, leading to echo chambers and political gridlock. Accurately measuring this phenomenon is a critical challenge. Existing measur…
Variational Inference of Parameters in Opinion Dynamics Models
Jacopo Lenti, Fabrizio Silvestri, Gianmarco De Francisci Morales
Despite the frequent use of agent-based models (ABMs) for studying social phenomena, parameter estimation remains a challenge, often relying on costly simulation-based heuristics.…
Alice and the Caterpillar: A more descriptive null model for assessing data mining results
Giulia Preti, Gianmarco De Francisci Morales, Matteo Riondato
We introduce novel null models for assessing the results obtained from observed binary transactional and sequence datasets, using statistical hypothesis testing. Our null models ma…
Polaris: Sampling from the Multigraph Configuration Model with Prescribed Color Assortativity
Giulia Preti, Matteo Riondato, Aristides Gionis +1
We introduce Polaris, a network null model for colored multi-graphs that preserves the Joint Color Matrix. Polaris is specifically designed for studying network polarization, where…
Causal Modeling of Climate Activism on Reddit
Jacopo Lenti, Luca Maria Aiello, Corrado Monti +1
Climate activism is crucial in stimulating collective societal and behavioral change towards sustainable practices through political pressure. Although multiple factors contribute…