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Charting multidimensional ideological polarization across demographic groups in the United States
Jaume Ojer, David Cárcamo, Romualdo Pastor-Satorras +1
Has ideological polarization actually increased in the last decades, or have voters simply sorted themselves into parties matching their ideology more closely? We present a novel m…
Signatures of criticality in turning avalanches of schooling fish
Andreu Puy, Elisabet Gimeno, David March-Pons +2
Moving animal groups transmit information through propagating waves or behavioral cascades, exhibiting characteristics akin to systems near a critical point from statistical physic…
Social Network Heterogeneity Promotes Depolarization of Multidimensional Correlated Opinions
Jaume Ojer, Michele Starnini, Romualdo Pastor-Satorras
We propose the multidimensional social compass model, based on two competing key ingredients: DeGroot learning, driven by the social influence exerted across multiple topics, and t…
Selective social interactions and speed-induced leadership in schooling fish
Andreu Puy, Elisabet Gimeno, Jordi Torrents +4
Animals moving together in groups are believed to interact among each other with effective social forces, such as attraction, repulsion and alignment. Such forces can be inferred u…