Social Network Derived Credibility

The increasing use of social media results in users that must ascertain the truthfulness of information that they encounter from unknown sources using a variety of indicators (e.g., explicit ratings, profile information, etc.). Through human-subject experimentation with an online social network-style platform, we focus on the determination of credibility in ego-centric networks, where participants are able to observe salient social network properties, such as degree centrality and geodesic distance. Using manipulated social network graphs, we find that corroboration and degree centrality are most utilized by subjects as indicators of credibility. utilized by subjects as indicators of credibility. We discuss the implications of the use of social network structural properties, use principal components analysis to visualize the reduced dimensional feature space, and analyze how credibility changes per property according to the “Big 5” theory of personality.

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