SGD with Adaptive Preconditioning: Unified Analysis and Momentum Acceleration
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Abstract (arXiv)
In this paper, we revisit stochastic gradient descent (SGD) with AdaGrad-type preconditioning. Our contributions are twofold. First, we develop a unified convergence analysis of SGD with adaptive preconditioning under anisotropic or matrix smoothness and noise assumptions. This allows us to recover state-of-the-art convergence results for several popular adaptive gradient methods, including AdaGrad-Norm, AdaGrad, and ASGO/One-sided Shampoo. In addition, we establish the fundamental connection between two recently proposed algorithms, Scion and DASGO, and provide the first theoretical guarantees for the latter. Second, we show that the convergence of methods like AdaGrad and DASGO can be provably accelerated beyond the best-known rates using Nesterov momentum. Consequently, we obtain the first theoretical justification that AdaGrad-type algorithms can simultaneously benefit from both diagonal preconditioning and momentum, which may provide an ultimate explanation for the practical efficiency of Adam.
Key facts. Cited by 12 papers in the map (data through 14 Oct 2026). Builds on 35 of its 51 references that are in the map. First posted on arXiv 30 Jun 2025.
Builds on
35 of 51 references.
References · 35
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- 2022ProxSkip: Yes! Local Gradient Steps Provably Lead to Communication Acceleration! Finally!cited by 134
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23 more
- 2017Lower Bounds for Finding Stationary Points Icited by 126
- 2018Black-Box Reductions for Parameter-free Online Learning in Banach Spacescited by 125
- 2018An Alternative View: When Does SGD Escape Local Minima?cited by 115
- 2023Learning-Rate-Free Learning by D-Adaptationcited by 113
- 2025Understanding Gradient Orthogonalization for Deep Learning via Non-Euclidean Trust-Region Optimizationcited by 92
- 2023DoG is SGD's Best Friend: A Parameter-Free Dynamic Step Size Schedulecited by 85
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- 2025Structured Preconditioners in Adaptive Optimization: A Unified Analysiscited by 33
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- 2024AdaGrad under Anisotropic Smoothnesscited by 22
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- 2017A Unified Approach to Adaptive Regularization in Online and Stochastic Optimizationcited by 19
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- 2024Universality of AdaGrad Stepsizes for Stochastic Optimization: Inexact Oracle, Acceleration and Variance Reductioncited by 9
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- 2025Incorporating Preconditioning into Accelerated Approaches: Theoretical Guarantees and Practical Improvementcited by 2
Built on by
Citing papers per year: 2025: 5; 2026: 7.
12 papers.
- 2025AdaGrad Meets Muon: Adaptive Stepsizes for Orthogonal Updatescited by 23
- 2025Non-Euclidean SGD for Structured Optimization: Unified Analysis and Improved Ratescited by 8
- 2025Nesterov Finds GRAAL: Optimal and Adaptive Gradient Method for Convex Optimizationcited by 5
- 2025A Tale of Two Geometries: Adaptive Optimizers and Non-Euclidean Descentcited by 5
- 2025Provable Benefit of SignGD: A Minimal Model Under Heavy-Tailed Class Imbalancecited by 5
- 2026A unified convergence theory for adaptive first-order methods in the nonconvex case, including AdaNorm, full and diagonal AdaGrad and Muoncited by 2
- 2026A Polyak-Ruppert Central Limit Theorem for SA-Adam with Momentum and Non-Convergent Adaptive Preconditioningcited by 2
- 2026Optimal Projection-Free Adaptive SGD for Matrix Optimizationcited by 1
- 2026Deterministic Adam-Inspired Methods with Accelerated Convergence Ratecited by 1
- 2026Adam-SHANG: A Convergent Adam-Type Method for Stochastic Smooth Convex Optimizationcited by 1
- 2026Stochastic Non-Smooth Convex Optimization with Unbounded Gradientscited by 0
- 2026Second-Moment Stochastic Approximation Methodscited by 0
- 2026Second-Moment Stochastic Approximation Methods29 Sep 2026
- 2026A Polyak-Ruppert Central Limit Theorem for SA-Adam with Momentum and Non-Convergent Adaptive Preconditioning15 Jun 2026
- 2026Stochastic Non-Smooth Convex Optimization with Unbounded Gradients15 May 2026
- 2026Adam-SHANG: A Convergent Adam-Type Method for Stochastic Smooth Convex Optimization13 May 2026
- 2026A unified convergence theory for adaptive first-order methods in the nonconvex case, including AdaNorm, full and diagonal AdaGrad and Muon19 Apr 2026
- 2026Deterministic Adam-Inspired Methods with Accelerated Convergence Rate9 Apr 2026
- 2026Optimal Projection-Free Adaptive SGD for Matrix Optimization2 Apr 2026
- 2025Provable Benefit of SignGD: A Minimal Model Under Heavy-Tailed Class Imbalance30 Nov 2025
- 2025A Tale of Two Geometries: Adaptive Optimizers and Non-Euclidean Descent25 Nov 2025
- 2025Non-Euclidean SGD for Structured Optimization: Unified Analysis and Improved Rates14 Nov 2025
- 2025AdaGrad Meets Muon: Adaptive Stepsizes for Orthogonal Updates3 Sep 2025
- 2025Nesterov Finds GRAAL: Optimal and Adaptive Gradient Method for Convex Optimization13 Jul 2025