MSc thesis defense presentation
Ευστράτιος-Παντελεήμον Σκουλάκης defends his MSc thesis
Date: | Δευτέρα, 31 Οκτ 2016 |
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Ώρα: | 18:30 |
Location: | Σχολή Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών, ΕΜΠ (παλαιά κτήρια), 1.1.31 |
Thesis title: | Opinion Dynamics with Local Interactions |
Committee: |
Thesis abstract
We study convergence properties of opinion dynamics with local interactions and limited information exchange. We adopt a general model where the agents update their opinions in rounds to a weighted average of the opinions in their neighborhoods. For fixed neighborhoods, we present a simple randomized protocol that converges in expectation to the stable state of the Friedkin-Johnsen model. For opinion-dependent neighborhoods, we show that the Hegselmann-Krause model converges to a stable state if each agent's neighborhood is restricted either to a subset of her acquaintances or to a small random subset of agents. Our experimental findings indicate that for a wide range of parameters, the convergence time and the number of opinion clusters of the neighborhood-restricted variants are comparable to those of the standard Hegselmann-Krause model.