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DPG

Regensburg 2010 – wissenschaftliches Programm

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SOE: Fachverband Physik sozio-ökonomischer Systeme

SOE 6: Poster Session

SOE 6.8: Poster

Montag, 22. März 2010, 18:00–20:00, Poster C

Individualized Trust in Social Networks — •Oliver Richters and Tiago P. Peixoto — TU Darmstadt, Fakultät für Physik

Non-centralized recommendation based decision making is a central feature of several social and technological processes, such as market dynamics, peer-to-peer file-sharing, and webs of trust of digital certification. We propose a metric for calculating transitive trust in social networks, based on the direct trust among agents. Our metric fully captures the individualized nature of trust, and does not rely on any specific topological characteristic of the network, contrary to similar methods proposed in the literature. Further, we investigate the general properties of trust in random networks, according to different strategies of choice of direct trust between agents.

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