“We refer to this property as social locality. Recent works [9, 32] have shown that distributed queries of small data records reduce performance compared to local queries. Therefore, social locality should be taken into account when designing a distributed storage for OSNs. More specifically, data of the users who are socially connected should be stored on servers within short reach from each other. An ideal storage scheme should be socially aware. However, the most prominent distributed storage scheme for OSNs, Cassandra is not socially aware” (Tran, 2013, Data Storage for Social Networks. A Socially Aware Approach, Springer, p.1-2)
data storage for social networks
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