Results 21 to 30 of about 12,304 (253)

Adaptive Laplace Mechanism: Differential Privacy Preservation in Deep Learning [PDF]

open access: yes2017 IEEE International Conference on Data Mining (ICDM), 2017
IEEE ICDM 2017 - regular ...
NhatHai Phan   +3 more
openaire   +5 more sources

Differential Privacy on Finite Computers

open access: yesThe Journal of Privacy and Confidentiality, 2019
We consider the problem of designing and analyzing differentially private algorithms that can be implemented on discrete models of computation in strict polynomial time, motivated by known attacks on floating point implementations of real-arithmetic ...
Victor Balcer, Salil Vadhan
doaj   +1 more source

LAPLACE-RUNGE-LENZ VECTOR IN QUANTUM MECHANICS IN NONCOMMUTATIVE SPACE [PDF]

open access: yesActa Polytechnica, 2013
The object under scrutiny is the dynamical symmetry connected with conservation of the Laplace-Runge-Lenz vector (LRL) in the hydrogen atom problem solved by means of noncommutative quantum mechanics (NCQM). The considered noncommutative configuration space has such a “fuzzy”<br />structure that the rotational invariance is not spoilt. An analogy
Peter Prešnajder   +2 more
openaire   +4 more sources

An Optimal Pufferfish Privacy Mechanism for Temporally Correlated Trajectories

open access: yesIEEE Access, 2018
Temporally correlated trajectories are ubiquitous, and it has been a challenging problem to protect the temporal correlation from being used against users' privacy.
Lu Ou   +4 more
doaj   +1 more source

Modified Edge Detector for Coloured Images

open access: yesIraqi Journal for Computers and Informatics, 2002
In this paper, a study of the role nf clour information in detecting the edges of an image was conducted Therefore, different colour spaces with components corresponding to the attribute tumance, hue, and saturation le., VHS, and LUVI were implemented ...
Ban Abdul-Rahman Al-Jubaury   +2 more
doaj   +1 more source

A Differential Privacy Protection Algorithm Based on ExtraTrees [PDF]

open access: yesJisuanji gongcheng, 2020
To improve the prediction accuracy and reduce prediction error under the same level of privacy protection,this paper proposes a differential privacy protection algorithm DiffPETs based on ExtraTrees.During the decision tree generation process,the result ...
LI Yang, CHEN Zibin, XIE Guangqiang
doaj   +1 more source

Continuous location privacy protection mechanism based on differential privacy

open access: yesTongxin xuebao, 2021
Aiming at the problem of users’ location privacy leakage caused by continuously using LBS, a road privacy level (RPL) algorithm was proposed based on road topological network, which divided the privacy level of the road sections around the sensitive ...
Hongtao LI   +3 more
doaj   +2 more sources

Representing Sparse Vectors with Differential Privacy, Low Error, Optimal Space, and Fast Access

open access: yesThe Journal of Privacy and Confidentiality, 2022
Representing a sparse histogram, or more generally a sparse vector, is a fundamental task in differential privacy. An ideal solution would use space close to information-theoretical lower bounds, have an error distribution that depends optimally on ...
Christian Janos Lebeda   +2 more
doaj  

Seepage model and productivity prediction of fractured wells in shale gas reservoirs with discontinuous micro-fractures

open access: yes工程科学学报, 2016
A dual-porosity medium with micro-fractured spherical matrix blocks was achieved on the basis of the structure characteristics of nano-micro pores and micro-fractures in shale gas reservoirs.
QI Qian, ZHU Wei-yao, DENG Jia, MA Qian
doaj   +1 more source

The Podium Mechanism: Improving on the Laplace and Staircase Mechanisms

open access: yesCoRR, 2019
The Podium mechanism guarantees ($ε, 0$)-differential privacy by sampling noise from a \emph{finite} mixture of three uniform distributions. By carefully constructing such a mixture distribution, we trivially guarantee privacy properties, while minimizing the variance of the noise added to our continuous outcome.
openaire   +2 more sources

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