563 citations
- Universitat Pompeu FabraES17 papers
- Institució Catalana de Recerca i Estudis AvançatsES4 papers
- University of WarwickGB3 papers
- Japan Science and Technology AgencyJP2 papers
- Laboratoire de Probabilités et Modèles AléatoiresFR2 papers
- Ritsumeikan UniversityJP2 papers
- Telefonica Research and DevelopmentES2 papers
- Universitat Autònoma de BarcelonaES2 papers
- Universitat de BarcelonaES2 papers
- Universitat Oberta de CatalunyaES2 papers
- University of BonnDE2 papers
- Aalto UniversityFI1 paper
26 papers
Rewarding Engagement and Personalization in Popularity-Based Rankings Amplifies Extremism and Polarization
Jacopo D'Ignazi, Emma Fraxanet Morales, Andreas Kaltenbrunner +3
Despite extensive research, the mechanisms through which online platforms shape extremism and polarization remain poorly understood. We identify and test a mechanism, grounded in e…
AdSight: Scalable and Accurate Quantification of User Attention in Multi-Slot Sponsored Search
Mario Villaizán-Vallelado, Matteo Salvatori, Kayhan Latifzadeh +3
Modern Search Engine Results Pages (SERPs) present complex layouts where multiple elements compete for visibility. Attention modelling is crucial for optimising web design and comp…
Nonparametric estimation of the stationary density for Hawkes-diffusion systems with known and unknown intensity
Chiara Amorino, Charlotte Dion-Blanc, Arnaud Gloter +1
We investigate the nonparametric estimation problem of the density , representing the stationary distribution of a two-dimensional system $\left(Z_t\right)_{t \in[0, T]}=\left(X…
Analyzing News Engagement on Facebook: Tracking Ideological Segregation and News Quality in the Facebook URL Dataset
Emma Fraxanet, Andreas Kaltenbrunner, Fabrizio Germano +1
The Facebook Privacy-Protected Full URLs Dataset was released to enable independent, academic research on the impact of Facebook's platform on society while ensuring user privacy.…
On the size of temporal cliques in subcritical random temporal graphs
Caelan Atamanchuk, Luc Devroye, Gabor Lugosi
A \emph{random temporal graph} is an Erdős-Rényi random graph , together with a random ordering of its edges. A path in the graph is called \emph{increasing} if the edges o…
Optimistic and pessimistic approaches for cooperative games
Ata Atay, Christian Trudeau
Cooperative game theory studies how to allocate the joint value generated by a set of players. These games are typically analyzed using the characteristic function form with transf…