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Learning a deep neural network requires solving a challenging optimization problem: it is a high-dimensional, non-convex and non-smooth minimization problem with a large number of terms. The current practice in neural network optimization…

机器学习 · 计算机科学 2021-02-23 Leonard Berrada , Andrew Zisserman , M. Pawan Kumar

We consider the Frank-Wolfe algorithm for solving variational inequalities over compact, convex sets under a monotone $C^1$ operator and vanishing, nonsummable step sizes. We introduce a continuous-time interpolation of the discrete…

最优化与控制 · 数学 2026-04-10 Matthew Hough

Stochastic Frank-Wolfe is a classical optimization method for solving constrained optimization problems. On the other hand, recent optimizers such as Lion and Muon have gained quite significant popularity in deep learning. In this work,…

最优化与控制 · 数学 2026-02-03 Maria-Eleni Sfyraki , Jun-Kun Wang

We tackle robust optimization problems under objective uncertainty in the oracle model, i.e., when the deterministic problem is solved by an oracle. The oracle-based setup is favorable in many situations, e.g., when a compact formulation of…

最优化与控制 · 数学 2024-12-06 Mathieu Besançon , Jannis Kurtz

This paper considers the fundamental convergence time for opportunistic scheduling over time-varying channels. The channel state probabilities are unknown and algorithms must perform some type of estimation and learning while they make…

最优化与控制 · 数学 2017-10-05 Michael J. Neely

We focus on analyzing the classical stochastic projected gradient methods under a general dependent data sampling scheme for constrained smooth nonconvex optimization. We show the worst-case rate of convergence $\tilde{O}(t^{-1/4})$ and…

最优化与控制 · 数学 2023-06-26 Ahmet Alacaoglu , Hanbaek Lyu

We consider the online problem of scheduling jobs on identical machines, where jobs have precedence constraints. We are interested in the demanding setting where the jobs sizes are not known up-front, but are revealed only upon completion…

数据结构与算法 · 计算机科学 2019-05-07 Naveen Garg , Anupam Gupta , Amit Kumar , Sahil Singla

We consider two greedy algorithms for minimizing a convex function in a bounded convex set: an algorithm by Jones [1992] and the Frank-Wolfe (FW) algorithm. We first consider approximate versions of these algorithms. For smooth convex…

最优化与控制 · 数学 2018-11-19 Nan Ye , Peter Bartlett

Error bound condition has recently gained revived interest in optimization. It has been leveraged to derive faster convergence for many popular algorithms, including subgradient methods, proximal gradient method and accelerated proximal…

最优化与控制 · 数学 2018-10-12 Yi Xu , Tianbao Yang

A new stochastic primal--dual algorithm for solving a composite optimization problem is proposed. It is assumed that all the functions/operators that enter the optimization problem are given as statistical expectations. These expectations…

最优化与控制 · 数学 2020-06-23 Pascal Bianchi , Walid Hachem , Adil Salim

Owing to their low-complexity iterations, Frank-Wolfe (FW) solvers are well suited for various large-scale learning tasks. When block-separable constraints are present, randomized block FW (RB-FW) has been shown to further reduce complexity…

最优化与控制 · 数学 2017-11-22 Liang Zhang , Gang Wang , Daniel Romero , Georgios B. Giannakis

We introduce regularized Frank-Wolfe, a general and effective algorithm for inference and learning of dense conditional random fields (CRFs). The algorithm optimizes a nonconvex continuous relaxation of the CRF inference problem using…

机器学习 · 计算机科学 2022-09-09 Đ. Khuê Lê-Huu , Karteek Alahari

Stochastic nonconvex-concave min-max saddle point problems appear in many machine learning and control problems including distributionally robust optimization, generative adversarial networks, and adversarial learning. In this paper, we…

最优化与控制 · 数学 2023-09-12 Morteza Boroun , Zeinab Alizadeh , Afrooz Jalilzadeh

Primal-dual methods in online optimization give several of the state-of-the art results in both of the most common models: adversarial and stochastic/random order. Here we try to provide a more unified analysis of primal-dual algorithms to…

数据结构与算法 · 计算机科学 2020-11-04 Marco Molinaro

Differentiable optimization has received a significant amount of attention due to its foundational role in the domain of machine learning based on neural networks. This paper proposes a differentiable layer, named Differentiable Frank-Wolfe…

机器学习 · 计算机科学 2024-04-01 Zixuan Liu , Liu Liu , Xueqian Wang , Peilin Zhao

Attention to data-driven optimization approaches, including the well-known stochastic gradient descent method, has grown significantly over recent decades, but data-driven constraints have rarely been studied, because of the computational…

机器学习 · 计算机科学 2023-10-11 Shuoguang Yang , Xudong Li , Guanghui Lan

Stochastic compositional optimization minimizes objectives of the form $\min_{\bm{x} \in \mathcal{X}} F(\bm{f}(\bm{x}), \bm{x})$, where $\bm{f}$ is accessible only through noisy stochastic queries. Existing methods for this problem assume…

最优化与控制 · 数学 2026-05-18 El Mahdi Chayti

The primal-dual distributed optimization methods have broad large-scale machine learning applications. Previous primal-dual distributed methods are not applicable when the dual formulation is not available, e.g. the sum-of-non-convex…

机器学习 · 计算机科学 2017-10-30 Zhouyuan Huo , Heng Huang

Distributed optimization has gained significant attention in recent years, primarily fueled by the availability of a large amount of data and privacy-preserving requirements. This paper presents a fixed-time convergent optimization…

系统与控制 · 计算机科学 2022-05-30 Kunal Garg , Mayank Baranwal

This work concerns the analysis and design of distributed first-order optimization algorithms over time-varying graphs. The goal of such algorithms is to optimize a global function that is the average of local functions using only local…

最优化与控制 · 数学 2020-02-17 Akhil Sundararajan , Bryan Van Scoy , Laurent Lessard