Zaobo He

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1 Proof of Theorem 1 Theorem 1. To satisfy that any r(x) (x ∈ S(t)) can be extracted with error O(M j), where M j ⊆ S(t) ⊆ M j+1 and 1 ≤ j ≤ log n, the condition |I| − µ ≤ |A| ≤ |I| should be ensured, where µ = 1 − 1 β · h · |M j |. Proof. As presented in Section IV.A, the querying process for r(x) in T is a traversal process over T. Assuming for each(More)
The rising popularity of mobile social media enables personalization of various content sharing and subscribing services. These two types of services entail serious privacy concerns not only to the confidentiality of shared content, but also to the privacy of end users such as their identities, interests and social relationships. Previous works established(More)
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