Optimal robustness-consistency tradeoffs for learning-augmented metrical task systems

N Christianson, J Shen… - … Conference on Artificial …, 2023 - proceedings.mlr.press
We examine the problem of designing learning-augmented algorithms for metrical task
systems (MTS) that exploit machine-learned advice while maintaining rigorous, worst-case …

Smoothed online convex optimization in high dimensions via online balanced descent

N Chen, G Goel, A Wierman - Conference On Learning …, 2018 - proceedings.mlr.press
We study\emph {smoothed online convex optimization}, a version of online convex
optimization where the learner incurs a penalty for changing her actions between rounds …

Beyond online balanced descent: An optimal algorithm for smoothed online optimization

G Goel, Y Lin, H Sun… - Advances in Neural …, 2019 - proceedings.neurips.cc
We study online convex optimization in a setting where the learner seeks to minimize the
sum of a per-round hitting cost and a movement cost which is incurred when changing …

Using predictions in online optimization: Looking forward with an eye on the past

N Chen, J Comden, Z Liu, A Gandhi… - ACM SIGMETRICS …, 2016 - dl.acm.org
We consider online convex optimization (OCO) problems with switching costs and noisy
predictions. While the design of online algorithms for OCO problems has received …

Chasing convex bodies optimally

M Sellke - Geometric Aspects of Functional Analysis: Israel …, 2023 - Springer
In the chasing convex bodies problem, an online player receives a request sequence of N
convex sets K 1,…, KN contained in a normed space X of dimension d. The player starts at x …

Online optimization with memory and competitive control

G Shi, Y Lin, SJ Chung, Y Yue… - Advances in Neural …, 2020 - proceedings.neurips.cc
This paper presents competitive algorithms for a novel class of online optimization problems
with memory. We consider a setting where the learner seeks to minimize the sum of a hitting …

Online optimization with predictions and non-convex losses

Y Lin, G Goel, A Wierman - Proceedings of the ACM on Measurement …, 2020 - dl.acm.org
We study online optimization in a setting where an online learner seeks to optimize a per-
round hitting cost, which may be non-convex, while incurring a movement cost when …

Improved dynamic graph coloring

S Solomon, N Wein - ACM Transactions on Algorithms (TALG), 2020 - dl.acm.org
This article studies the fundamental problem of graph coloring in fully dynamic graphs. Since
the problem of computing an optimal coloring, or even approximating it to within n1-ε for any …

Revisiting smoothed online learning

L Zhang, W Jiang, S Lu, T Yang - Advances in Neural …, 2021 - proceedings.neurips.cc
In this paper, we revisit the problem of smoothed online learning, in which the online learner
suffers both a hitting cost and a switching cost, and target two performance metrics …

Thinking fast and slow: Optimization decomposition across timescales

G Goel, N Chen, A Wierman - ACM SIGMETRICS Performance …, 2017 - dl.acm.org
Many real-world control systems, such as the smart grid and software defined networks,
have decentralized components that react quickly using local information and centralized …