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Bibliographic Details
Main Authors: Guépin, Florent, Cisse, Cheick Tidiani, Renaud, Denis, Bidet, François, Legendre, Arnaud
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2605.10647
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Table of Contents:
  • Trajectories are nowadays valuable information for a wide range of applications. However they are also inherently sensitive, as they contain highly personal information about individuals. Facing this challenge, synthesizing mobility trajectories has emerged as a promising solution to leverage mobility information while preserving privacy. State-of-the-art models, often rely on the false assumptions of generative models implicit privacy and fails to provide privacy guarantees while preserving trajectories utility. Here, we introduce diffGHOST, a conditional diffusion model based on latent space segmentation, designed to answer this challenge. Thus, this paper propose a methodology that identify and mitigate memorization of critical samples using condition segments of a learn latent space.