Sketching as a Tool for Numerical Linear Algebra
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Abstract (arXiv)
This survey highlights the recent advances in algorithms for numerical linear algebra that have come from the technique of linear sketching, whereby given a matrix, one first compresses it to a much smaller matrix by multiplying it by a (usually) random matrix with certain properties. Much of the expensive computation can then be performed on the smaller matrix, thereby accelerating the solution for the original problem. In this survey we consider least squares as well as robust regression problems, low rank approximation, and graph sparsification. We also discuss a number of variants of these problems. Finally, we discuss the limitations of sketching methods.
Key facts. Cited by 285 papers in the map (data through 7 Oct 2026). First posted on arXiv 17 Nov 2014.
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Citing papers per year: 2021: 47; 2022: 54; 2023: 56; 2024: 49; 2025: 45; 2026: 34.
285 papers.
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- 2021Fast Sketching of Polynomial Kernels of Polynomial Degreecited by 33
- 2023PolySketchFormer: Fast Transformers via Sketching Polynomial Kernelscited by 33
- 2021Scaling Neural Tangent Kernels via Sketching and Random Featurescited by 32
38 more
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- 2023Generalization Bound and Learning Methods for Data-Driven Projections in Linear Programmingcited by 10
50 most cited of 285 All 285 (JSON)
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- 2026SketchSSM: Write to the Full State, Read from a Compact Sketch27 Sep 2026
- 2026Derivative-Informed Training of Neural Operators On-the-Fly via Sketched Tangent Consistency26 Sep 2026
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- 2025Even Faster Kernel Matrix Linear Algebra via Density Estimation2 Oct 2025
- 2025Adaptive randomized pivoting and volume sampling2 Oct 2025
- 2025SAGE: Streaming Agreement-Driven Gradient Sketches for Representative Subset Selection2 Oct 2025
- 2025Geometrically Principled Randomized Optimization for Efficient LLM Training2 Oct 2025
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- 2025Efficient Sketching and Nearest Neighbor Search Algorithms for Sparse Vector Sets29 Sep 2025
- 2025Deep Learning for Subspace Regression27 Sep 2025
- 2025Linear Causal Representation Learning by Topological Ordering, Pruning, and Disentanglement26 Sep 2025
- 2025Linear Transformers Implicitly Discover Unified Numerical Algorithms24 Sep 2025
- 2025Graph Coloring for Multi-Task Learning21 Sep 2025
50 newest of 285 All 285 (JSON)
- 2023Deja Vu: Contextual Sparsity for Efficient LLMs at Inference Timecited by 247
- 2022Training Data Influence Analysis and Estimation: A Surveycited by 134
- 2021Scaling Up Influence Functionscited by 130
- 2022Survey on Federated Learning Threats: concepts, taxonomy on attacks and defences, experimental study and challengescited by 81
- 2021Training Multi-Layer Over-Parametrized Neural Network in Subquadratic Timecited by 62
- 2024Scaling Laws in Linear Regression: Compute, Parameters, and Datacited by 54
- 2023Increasing the Scope as You Learn: Adaptive Bayesian Optimization in Nested Subspacescited by 50
- 2022A Framework and Benchmark for Deep Batch Active Learning for Regressioncited by 47
- 2022Submodularity In Machine Learning and Artificial Intelligencecited by 37
- 2021Fast Sketching of Polynomial Kernels of Polynomial Degreecited by 33
- 2023PolySketchFormer: Fast Transformers via Sketching Polynomial Kernelscited by 33
- 2021Scaling Neural Tangent Kernels via Sketching and Random Featurescited by 32
12 most cited of 280 All 280 (JSON)
- 2026Certified Approximation for Interpretable Representer Landmarks30 Sep 2026
- 2026The Advantages of Fresh Sketching for Ridge Regression29 Sep 2026
- 2026Derivative-Informed Training of Neural Operators On-the-Fly via Sketched Tangent Consistency26 Sep 2026
- 2026What Must Survive? Exact Task-Information--State Frontiers Under Partial Task Revelation18 Sep 2026
- 2026GPU-Enabled Large-Scale Optimization Using Randomized Linear Algebra8 Sep 2026
- 2026Linear RNN Scaling Laws: When Longer Sequences Beat More Sequences23 Aug 2026
- 2026Accelerated Learning of High Dimensional Functions with a Tensor-Featured Training Network11 Aug 2026
- 2026Active Regression for Single-Index Models with Unknown Link Functions2 Aug 2026
- 2026Low-Rank Dependence Decomposition via Accelerated Symmetric Non-negative Matrix Factorization27 Jul 2026
- 2026Dimension Reduction for Curves: Simplified and Generalized3 Jul 2026
- 2026Koopman operator theory: fundamentals, control, and applications2 Jul 2026
- 2026Sketched Linear Contrastive Learning: Approximation, Optimization, and Statistical Scaling25 Jun 2026
12 newest of 280 All 280 (JSON)