mlsanityData to 7 Oct 2026

BLENDER: Enabling Local Search with a Hybrid Differential Privacy Model

arXiv 1705.00831 ↗First posted 2 May 2017cs.CR cs.CY cs.IRcited by 14

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Abstract (arXiv)

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 for the task of privately computing the head of a search log. This blended approach provides significant improvements in the utility of obtained data compared to related work while providing users with their desired privacy guarantees. 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.

Key facts. Cited by 14 papers in the map (data through 7 Oct 2026). First posted on arXiv 2 May 2017.

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Citing papers per year: 2021: 4; 2022: 3; 2023: 4; 2024: 3.

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