The article introduces the concept of k-stars LDP as a novel framework for (p, q)-clique enumeration under local differential privacy. It addresses the limitations of traditional edge LDP algorithms by reducing estimation errors and improving data utility. The proposed algorithm utilizes k-stars neighboring lists, absolute value correction technique, and k-stars sampling technique to enhance privacy protection while counting subgraphs. The theoretical analysis and experiments demonstrate the superiority of the k-stars LDP algorithm over edge LDP algorithms in terms of privacy, unbiasedness, and utility. The experiments conducted on real datasets show better performance of k-stars LDP in sparse graphs and for different (p, q)-cliques.
A otro idioma
del contenido fuente
arxiv.org
Ideas clave extraídas de
by Henan Sun,Zh... a las arxiv.org 03-05-2024
https://arxiv.org/pdf/2403.01788.pdfConsultas más profundas