Abstract
Online social networks (OSNs) have successfully changed the way people interact. Online interactions among people span geographical boundaries and interweave with different human life activities. However, current OSNs identification schemes lack guarantees on quantifying the trustworthiness of online identities of users joining them. Therefore, driven from the need to empower users with an identity validation scheme, we introduce a novel model, cooperative and adaptive decentralized identity validation CADIVa, that allows OSN users to assign trust levels to whomever they interact with. CADIVa exploits association rule mining approach to extract the identity correlations among profile attributes in every individual community in a social network. CADIVa is a fully decentralized and adaptive model that exploits fully decentralized learning and cooperative approaches not only to preserve users privacy, but also to increase the system reliability and to make it resilient to mono-failure. CADIVa follows the ensemble learning paradigm to preserve users privacy and employs gossip protocols to achieve efficient and low-overhead communication. We provide two different implementation scenarios of CADIVa. Results confirm CADIVa’s ability to provide fine-grained community-aware identity validation with average improvement up to 36 and 50 % compared to the semi-centralized or global approaches, respectively.
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We exploit the community detection algorithm suggested in Rahimian et al. (2014) as it provides a fully decentralized solution.
R depends on the topological properties of the underlying graph.
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This work is under the umbrella of the iSocial EU Marie Curie ITN Project (FP7-PEOPLE-2012-ITN).
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Soliman, A., Bahri, L., Girdzijauskas, S. et al. CADIVa: cooperative and adaptive decentralized identity validation model for social networks. Soc. Netw. Anal. Min. 6, 36 (2016). https://doi.org/10.1007/s13278-016-0343-z
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DOI: https://doi.org/10.1007/s13278-016-0343-z