3 papers
cs.SI2022
Crowding out the truth? A simple model of misinformation, polarization and meaningful social interactions
Fabrizio Germano, Vicenç Gómez, Francesco Sobbrio
This paper provides a simple theoretical framework to evaluate the effect of key parameters of ranking algorithms, namely popularity and personalization parameters, on measures of…
cs.IR2019
The few-get-richer: a surprising consequence of popularity-based rankings
Fabrizio Germano, Vicenç Gómez, Gaël Le Mens
Ranking algorithms play a crucial role in online platforms ranging from search engines to recommender systems. In this paper, we identify a surprising consequence of popularity-bas…
cs.SI2018
Opinion Dynamics via Search Engines (and other Algorithmic Gatekeepers)
Fabrizio Germano, Francesco Sobbrio
Ranking algorithms are the information gatekeepers of the Internet era. We develop a stylized model to study the effects of ranking algorithms on opinion dynamics. We consider a se…