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Victor Sanches Portella
Victor Sanches Portella
Otros nombresVictor S. Portella
Postdoctoral Researcher, University of São Paulo
Dirección de correo verificada de ime.usp.br - Página principal
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Año
Online mirror descent and dual averaging: keeping pace in the dynamic case
H Fang, NJA Harvey, VS Portella, MP Friedlander
Journal of Machine Learning Research 23 (121), 1-38, 2022
372022
Regret bounds without Lipschitz continuity: online learning with relative-Lipschitz losses
Y Zhou, V Sanches Portella, M Schmidt, N Harvey
Advances in Neural Information Processing Systems 33, 2020
222020
Searching for optimal per-coordinate step-sizes with multidimensional backtracking
F Kunstner, V Sanches Portella, M Schmidt, N Harvey
Advances in Neural Information Processing Systems 36, 2725-2767, 2023
62023
Continuous Prediction with Experts' Advice
NJA Harvey, C Liaw, VS Portella
Journal of Machine Learning Research 25 (228), 1-32, 2024
5*2024
Lower Bounds for Private Estimation of Gaussian Covariance Matrices under All Reasonable Parameter Regimes
VS Portella, N Harvey
arXiv preprint arXiv:2404.17714, 2024
42024
Efficient and Optimal Fixed-Time Regret with Two Experts
L Greenstreet, NJA Harvey, VS Portella
International Conference on Algorithmic Learning Theory, 436-464, 2022
42022
On the expected ℓ∞-norm of high-dimensional martingales
NJA Harvey, C Liaw, VS Portella
Stochastic Processes and their Applications, 104575, 2025
2025
Privacy, experts, and martingales: an investigation on the use of analytical tools
V Sanches Portella
University of British Columbia, 2024
2024
Online convex optimization: algorithms, learning, and duality
VS Portella
Universidade de São Paulo, 2019
2019
Almost Linear Time Algorithms for Flows in Graphs
VS Portella
2016
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Artículos 1–10