no code implementations • 9 Nov 2022 • Pedro Faustini, Natasha Fernandes, Shakila Tonni, Annabelle McIver, Mark Dras
In this paper, we apply \textit{directional privacy}, via a mechanism based on the von Mises-Fisher (VMF) distribution, to perturb gradients in terms of \textit{angular distance} so that gradient direction is broadly preserved.
