21 citations · 40 across the 8 of their papers we have counts for
9 papers
Large Graph Signal Denoising with Application to Differential Privacy
Elie Chedemail, Basile de Loynes, Fabien Navarro +1
Over the last decade, signal processing on graphs has become a very active area of research. Specifically, the number of applications, for instance in statistical or deep learning,…
Gasper: GrAph Signal ProcEssing in R
Basile de Loynes, Fabien Navarro, Baptiste Olivier
We present a short tutorial on to the use of the R gasper package. Gasper is a package dedicated to signal processing on graphs. It also provides an interface to the SuiteSparse Ma…
Localized Fourier Analysis for Graph Signal Processing
Basile de Loynes, Fabien Navarro, Baptiste Olivier
We propose a new point of view in the study of Fourier analysis on graphs, taking advantage of localization in the Fourier domain. For a signal on vertices of a weighted graph…
Data-driven Thresholding in Denoising with Spectral Graph Wavelet Transform
Basile de Loynes, Fabien Navarro, Baptiste Olivier
This paper is devoted to adaptive signal denoising in the context of Graph Signal Processing (GSP) using Spectral Graph Wavelet Transform (SGWT). This issue is addressed \emph{via}…
Privacy in trajectory micro-data publishing : a survey
Marco Fiore, Panagiota Katsikouli, Elli Zavou +7
We survey the literature on the privacy of trajectory micro-data, i.e., spatiotemporal information about the mobility of individuals, whose collection is becoming increasingly simp…
Fixed-point spectrum for group actions by affine isometries on Lp-spaces
Omer Lavy, Baptiste Olivier
The fixed-point spectrum of a locally compact second countable group G on lp is defined to be the set of real numbers p such that every action by affine isometries of G on lp admit…
Variants of a-T-menability for actions on non-commutative Lp spaces
Baptiste Olivier
We investigate various characterizations of the Haagerup property (H) for a second countable locally compact group G, in terms of orthogonal representations of G on non-commutative…
On groups with Property (T_lp)
Bachir Bekka, Baptiste Olivier
Let p be a real number with 1<p and different from 2. We study Property (T_lp) for a second countable locally compact group G. Property (T_lp) is a weak version of Kazhdan's Proper…
Property (T) with respect to non-commutative Lp-spaces
Baptiste Olivier
We show that a group with Kazhdan's property has property for the Haagerup non-commutative -space associated with a von Neumann algebra $\ma…