Matches in SemOpenAlex for { <https://semopenalex.org/work/W2162851466> ?p ?o ?g. }
Showing items 1 to 61 of
61
with 100 items per page.
- W2162851466 abstract "We introduce the problem of releasing sensitive data under differential privacy when the privacy level is subject to change over time. Existing work assumes that privacy level is determined by the system designer as a fixed value before sensitive data is released. For certain applications, however, users may wish to relax the privacy level for subsequent releases of the same data after either a re-evaluation of the privacy concerns or the need for better accuracy. Specifically, given a database containing sensitive data, we assume that a response $y_1$ that preserves $epsilon_{1}$-differential privacy has already been published. Then, the privacy level is relaxed to $epsilon_2$, with $epsilon_2 > epsilon_1$, and we wish to publish a more accurate response $y_2$ while the joint response $(y_1, y_2)$ preserves $epsilon_2$-differential privacy. How much accuracy is lost in the scenario of gradually releasing two responses $y_1$ and $y_2$ compared to the scenario of releasing a single response that is $epsilon_{2}$-differentially private? Our results show that there exists a composite mechanism that achieves textit{no loss} in accuracy. We consider the case in which the private data lies within $mathbb{R}^{n}$ with an adjacency relation induced by the $ell_{1}$-norm, and we focus on mechanisms that approximate identity queries. We show that the same accuracy can be achieved in the case of gradual release through a mechanism whose outputs can be described by a textit{lazy Markov stochastic process}. This stochastic process has a closed form expression and can be efficiently sampled. Our results are applicable beyond identity queries. To this end, we demonstrate that our results can be applied in several cases, including Google's RAPPOR project, trading of sensitive data, and controlled transmission of private data in a social network." @default.
- W2162851466 created "2016-06-24" @default.
- W2162851466 creator A5024578596 @default.
- W2162851466 creator A5029243115 @default.
- W2162851466 creator A5043643728 @default.
- W2162851466 date "2015-04-02" @default.
- W2162851466 modified "2023-10-16" @default.
- W2162851466 title "Gradual Release of Sensitive Data under Differential Privacy" @default.
- W2162851466 hasPublicationYear "2015" @default.
- W2162851466 type Work @default.
- W2162851466 sameAs 2162851466 @default.
- W2162851466 citedByCount "0" @default.
- W2162851466 crossrefType "posted-content" @default.
- W2162851466 hasAuthorship W2162851466A5024578596 @default.
- W2162851466 hasAuthorship W2162851466A5029243115 @default.
- W2162851466 hasAuthorship W2162851466A5043643728 @default.
- W2162851466 hasConcept C112698675 @default.
- W2162851466 hasConcept C11413529 @default.
- W2162851466 hasConcept C118615104 @default.
- W2162851466 hasConcept C144133560 @default.
- W2162851466 hasConcept C23130292 @default.
- W2162851466 hasConcept C33923547 @default.
- W2162851466 hasConcept C41008148 @default.
- W2162851466 hasConcept C41458344 @default.
- W2162851466 hasConcept C80444323 @default.
- W2162851466 hasConceptScore W2162851466C112698675 @default.
- W2162851466 hasConceptScore W2162851466C11413529 @default.
- W2162851466 hasConceptScore W2162851466C118615104 @default.
- W2162851466 hasConceptScore W2162851466C144133560 @default.
- W2162851466 hasConceptScore W2162851466C23130292 @default.
- W2162851466 hasConceptScore W2162851466C33923547 @default.
- W2162851466 hasConceptScore W2162851466C41008148 @default.
- W2162851466 hasConceptScore W2162851466C41458344 @default.
- W2162851466 hasConceptScore W2162851466C80444323 @default.
- W2162851466 hasLocation W21628514661 @default.
- W2162851466 hasOpenAccess W2162851466 @default.
- W2162851466 hasPrimaryLocation W21628514661 @default.
- W2162851466 hasRelatedWork W1649611255 @default.
- W2162851466 hasRelatedWork W1907550802 @default.
- W2162851466 hasRelatedWork W2160113380 @default.
- W2162851466 hasRelatedWork W2397696965 @default.
- W2162851466 hasRelatedWork W2777683003 @default.
- W2162851466 hasRelatedWork W2808464892 @default.
- W2162851466 hasRelatedWork W2891481041 @default.
- W2162851466 hasRelatedWork W2931231684 @default.
- W2162851466 hasRelatedWork W2951448804 @default.
- W2162851466 hasRelatedWork W2951925211 @default.
- W2162851466 hasRelatedWork W2952693948 @default.
- W2162851466 hasRelatedWork W2955316800 @default.
- W2162851466 hasRelatedWork W2963502357 @default.
- W2162851466 hasRelatedWork W2982293163 @default.
- W2162851466 hasRelatedWork W3093903017 @default.
- W2162851466 hasRelatedWork W3100146630 @default.
- W2162851466 hasRelatedWork W3106284904 @default.
- W2162851466 hasRelatedWork W3119801758 @default.
- W2162851466 hasRelatedWork W3125887583 @default.
- W2162851466 hasRelatedWork W3211347933 @default.
- W2162851466 isParatext "false" @default.
- W2162851466 isRetracted "false" @default.
- W2162851466 magId "2162851466" @default.
- W2162851466 workType "article" @default.