Kimon Antonakopoulos

34 papers A* 18Journal 16
YearRankTypeTitle / Venue / Authors
2026 J jnl
Multi-Step Alignment as Markov Games: An Optimistic Online Mirror Descent Approach with Convergence Guarantees.
Trans. Mach. Learn. Res.
Yongtao Wu, Luca Viano, Kimon Antonakopoulos, Yihang Chen, Zhenyu Zhu, Quanquan Gu, Volkan Cevher
2025 J jnl
Generalized Gradient Norm Clipping & Non-Euclidean (L
CoRR
Thomas Pethick, Wanyun Xie, Mete Erdogan, Kimon Antonakopoulos, Tony Silveti-Falls, Volkan Cevher
2025 A* conf
Layer-wise Quantization for Quantized Optimistic Dual Averaging.
ICML
Anh Duc Nguyen, Ilia Markov, Frank Zhengqing Wu, Ali Ramezani-Kebrya, Kimon Antonakopoulos, Dan Alistarh, Volkan Cevher
2025 J jnl
Layer-wise Quantization for Quantized Optimistic Dual Averaging.
CoRR
Anh Duc Nguyen, Ilia Markov, Frank Zhengqing Wu, Ali Ramezani-Kebrya, Kimon Antonakopoulos, Dan Alistarh, Volkan Cevher
2025 J jnl
Multi-Step Alignment as Markov Games: An Optimistic Online Gradient Descent Approach with Convergence Guarantees.
CoRR
Yongtao Wu, Luca Viano, Yihang Chen, Zhenyu Zhu, Kimon Antonakopoulos, Quanquan Gu, Volkan Cevher
2025 A* conf
Training Deep Learning Models with Norm-Constrained LMOs.
ICML
Thomas Pethick, Wanyun Xie, Kimon Antonakopoulos, Zhenyu Zhu, Antonio Silveti-Falls, Volkan Cevher
2025 J jnl
Training Deep Learning Models with Norm-Constrained LMOs.
CoRR
Thomas Pethick, Wanyun Xie, Kimon Antonakopoulos, Zhenyu Zhu, Antonio Silveti-Falls, Volkan Cevher
2025 J jnl
Training Neural Networks at Any Scale.
CoRR
Thomas Pethick, Kimon Antonakopoulos, Antonio Silveti-Falls, Leena Chennuru Vankadara, Volkan Cevher
2024 A* conf
Advancing the Lower Bounds: an Accelerated, Stochastic, Second-order Method with Optimal Adaptation to Inexactness.
ICLR
Artem Agafonov, Dmitry Kamzolov, Alexander V. Gasnikov, Ali Kavis, Kimon Antonakopoulos, Volkan Cevher, Martin Takác
2024 A* conf
Improving SAM Requires Rethinking its Optimization Formulation.
ICML
Wanyun Xie, Fabian Latorre, Kimon Antonakopoulos, Thomas Pethick, Volkan Cevher
2024 J jnl
Improving SAM Requires Rethinking its Optimization Formulation.
CoRR
Wanyun Xie, Fabian Latorre, Kimon Antonakopoulos, Thomas Pethick, Volkan Cevher
2024 J jnl
On the Generalization of Stochastic Gradient Descent with Momentum.
J. Mach. Learn. Res.
Ali Ramezani-Kebrya, Kimon Antonakopoulos, Volkan Cevher, Ashish Khisti, Ben Liang
2024 A* conf
Universal Gradient Methods for Stochastic Convex Optimization.
ICML
Anton Rodomanov, Ali Kavis, Yongtao Wu, Kimon Antonakopoulos, Volkan Cevher
2023 A* conf
Distributed Extra-gradient with Optimal Complexity and Communication Guarantees.
ICLR
Ali Ramezani-Kebrya, Kimon Antonakopoulos, Igor Krawczuk, Justin Deschenaux, Volkan Cevher
2023 J jnl
Distributed Extra-gradient with Optimal Complexity and Communication Guarantees.
CoRR
Ali Ramezani-Kebrya, Kimon Antonakopoulos, Igor Krawczuk, Justin Deschenaux, Volkan Cevher
2022 A* conf
AdaGrad Avoids Saddle Points.
ICML
Kimon Antonakopoulos, Panayotis Mertikopoulos, Georgios Piliouras, Xiao Wang
2022 A* conf
Adaptive Stochastic Variance Reduction for Non-convex Finite-Sum Minimization.
NeurIPS
Ali Kavis, Stratis Skoulakis, Kimon Antonakopoulos, Leello Tadesse Dadi, Volkan Cevher
2022 J jnl
Adaptive Stochastic Variance Reduction for Non-convex Finite-Sum Minimization.
CoRR
Ali Kavis, Stratis Skoulakis, Kimon Antonakopoulos, Leello Tadesse Dadi, Volkan Cevher
2022 A* conf
Extra-Newton: A First Approach to Noise-Adaptive Accelerated Second-Order Methods.
NeurIPS
Kimon Antonakopoulos, Ali Kavis, Volkan Cevher
2022 J jnl
Extra-Newton: A First Approach to Noise-Adaptive Accelerated Second-Order Methods.
CoRR
Kimon Antonakopoulos, Ali Kavis, Volkan Cevher
2022 J jnl
No-Regret Learning in Games with Noisy Feedback: Faster Rates and Adaptivity via Learning Rate Separation.
CoRR
Yu-Guan Hsieh, Kimon Antonakopoulos, Volkan Cevher, Panayotis Mertikopoulos
2022 A* conf
No-regret learning in games with noisy feedback: Faster rates and adaptivity via learning rate separation.
NeurIPS
Yu-Guan Hsieh, Kimon Antonakopoulos, Volkan Cevher, Panayotis Mertikopoulos
2022 J jnl
Routing in an Uncertain World: Adaptivity, Efficiency, and Equilibrium.
CoRR
Dong Quan Vu, Kimon Antonakopoulos, Panayotis Mertikopoulos
2022 A* conf
UnderGrad: A Universal Black-Box Optimization Method with Almost Dimension-Free Convergence Rate Guarantees.
ICML
Kimon Antonakopoulos, Dong Quan Vu, Volkan Cevher, Kfir Y. Levy, Panayotis Mertikopoulos
2021 A* conf
Adaptive Extra-Gradient Methods for Min-Max Optimization and Games.
ICLR
Kimon Antonakopoulos, Elena Veronica Belmega, Panayotis Mertikopoulos
2021 A* conf
Adaptive First-Order Methods Revisited: Convex Minimization without Lipschitz Requirements.
NeurIPS
Kimon Antonakopoulos, Panayotis Mertikopoulos
2021 A* conf
Adaptive Learning in Continuous Games: Optimal Regret Bounds and Convergence to Nash Equilibrium.
COLT
Yu-Guan Hsieh, Kimon Antonakopoulos, Panayotis Mertikopoulos
2021 J jnl
Adaptive Learning in Continuous Games: Optimal Regret Bounds and Convergence to Nash Equilibrium.
CoRR
Yu-Guan Hsieh, Kimon Antonakopoulos, Panayotis Mertikopoulos
2021 J jnl
Adaptive first-order methods revisited: Convex optimization without Lipschitz requirements.
CoRR
Kimon Antonakopoulos, Panayotis Mertikopoulos
2021 A* conf
Fast Routing under Uncertainty: Adaptive Learning in Congestion Games via Exponential Weights.
NeurIPS
Dong Quan Vu, Kimon Antonakopoulos, Panayotis Mertikopoulos
2021 A* conf
Sifting through the noise: Universal first-order methods for stochastic variational inequalities.
NeurIPS
Kimon Antonakopoulos, Thomas Pethick, Ali Kavis, Panayotis Mertikopoulos, Volkan Cevher
2020 J jnl
Adaptive extra-gradient methods for min-max optimization and games.
CoRR
Kimon Antonakopoulos, Elena Veronica Belmega, Panayotis Mertikopoulos
2020 A* conf
Online and stochastic optimization beyond Lipschitz continuity: A Riemannian approach.
ICLR
Kimon Antonakopoulos, Elena Veronica Belmega, Panayotis Mertikopoulos
2019 A* conf
An adaptive Mirror-Prox method for variational inequalities with singular operators.
NeurIPS
Kimon Antonakopoulos, Elena Veronica Belmega, Panayotis Mertikopoulos