nvflare.app_common.filters.svt_privacy module¶
- class SVTPrivacy(fraction=0.1, epsilon=0.1, noise_var=0.1, gamma=1e-05, tau=1e-06)[source]¶
Bases:
Filter
Implementation of the standard Sparse Vector Technique (SVT) differential privacy algorithm.
lambda_rho = gamma * 2.0 / epsilon threshold = tau + np.random.laplace(scale=lambda_rho)
- Parameters
fraction (float, optional) – used to determine dataset threshold. Defaults to 0.1.
epsilon (float, optional) – Defaults to 0.1.
noise_var (float, optional) – additive noise. Defaults to 0.1.
gamma (float, optional) – Defaults to 1e-5.
tau (float, optional) – Defaults to 1e-6.