Muestra la distribución de disciplinas para esta publicación.
Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.
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| Año | 2023 | ||||
| Tipo | proceedings paper |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
We show that convex-concave Lipschitz stochastic saddle point problems (also known as stochastic minimax optimization) can be solved under the constraint of (ϵ, δ)-differential privacy with strong (primal-dual) gap rate of Õ(√1n + √nϵd), where n is the dataset size and d is the dimension of the problem. This rate is nearly optimal, based on existing lower bounds in differentially private stochastic convex optimization. Specifically, we prove a tight upper bound on the strong gap via novel implementation and analysis of the recursive regularization technique repurposed for saddle point problems. We show that this rate can be attained with O(min {n2√ϵd1.5 , n3/2}) gradient complexity, and Õ(n) gradient complexity if the loss function is smooth. As a byproduct of our method, we develop a general algorithm that, given a black-box access to a subroutine satisfying a certain α primal-dual accuracy guarantee with respect to the empirical objective, gives a solution to the stochastic saddle point problem with a strong gap of Õ(α+ √1n). We show that this α-accuracy condition is satisfied by standard algorithms for the empirical saddle point problem such as the proximal point method and the stochastic gradient descent ascent algorithm. Finally, to emphasize the importance of the strong gap as a convergence criterion compared to the weaker notion of primal-dual gap, commonly known as the weak gap, we show that even for simple problems it is possible for an algorithm to have zero weak gap and suffer from Ω(1) strong gap. We also show that there exists a fundamental tradeoff between stability and accuracy. Specifically, we show that any ∆-stable algorithm has empirical gap Ω(∆1n), and that this bound is tight. This result also holds also more specifically for empirical risk minimization problems and may be of independent interest.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Bassily, Raef | - |
The Ohio State University - Estados Unidos
College of Engineering - Estados Unidos OHIO STATE UNIV - Estados Unidos |
| 2 | Guzman, Cristobal | Hombre |
Facultad de Matemáticas - Chile
Pontificia Universidad Católica de Chile - Chile |
| 3 | Menart, Michael | Hombre |
The Ohio State University - Estados Unidos
College of Engineering - Estados Unidos OHIO STATE UNIV - Estados Unidos |
| 4 | Neu, G | - | |
| 5 | Rosasco, L | - |
| Fuente |
|---|
| FONDECYT |
| National Science Foundation |
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| NSF |
| NSF CAREER Award |
| Institut national de recherche en informatique et en automatique (INRIA) |
| Agencia Nacional de Investigación y Desarrollo |
| ANID Anillo |
| Basal ANID |
| National Center for Artificial Intelligence CENIA |
| INRIA Associate Teams project |
| Agradecimiento |
|---|
| RB’s and MM’s research is supported by NSF CAREER Award 2144532 and NSF Award AF-1908281. CG’s research was partially supported by INRIA Associate Teams project, FONDECYT 1210362 grant, ANID Anillo ACT210005 grant, and National Center for Artificial Intelligence CENIA FB210017, Basal ANID. |
| RB's and MM's research is supported by NSF CAREER Award 2144532 and NSF Award AF-1908281. CG's research was partially supported by INRIA Associate Teams project, FONDECYT 1210362 grant, ANID Anillo ACT210005 grant, and National Center for Artificial Intelligence CENIA FB210017, Basal ANID. |