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Creators/Authors contains: "Zeber, David"

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  1. ; ; ; ; (, Journal of Privacy and Confidentiality)
    We propose a hybrid model of differential privacy that considers a combination of regular and opt-in users who desire the differential privacy guarantees of the local privacy model and the trusted curator model, respectively. We demonstrate that within this model, it is possible to design a new type of blended algorithm that improves the utility of obtained data, while providing users with their desired privacy guarantees. We apply this algorithm to the task of privately computing the head of the search log and show that the blended approach provides significant improvements in the utility of the data compared to related work. Specifically, on two large search click data sets, comprising 1.75 and 16 GB, respectively, our approach attains NDCG values exceeding 95% across a range of privacy budget values. 
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    Full Text Available 
  2. ; ; ; ; (, Advances in Cryptology - EUROCRYPT 2019)
    Ishai, Yuval; Rijmen, Vincent (Ed.)
    Full Text Available 
  3. ; ; ; ; (, 38th Annual International Conference on the Theory and Applications of Cryptographic Techniques)
    Accepted Manuscript Full Text Available