activity
20242026
most citedRandomized Kaczmarz Methods with Beyond-Krylov Convergence

1 citations · 1 across the 9 of their papers we have counts for

collaborators

12 papers

math.NA2026

Quantile Randomized Kaczmarz for Streaming Linear Systems with Massart Noise

Emeric Battaglia, Jian-Feng Cai, Junren Chen +3

Quantile randomized Kaczmarz (QRK) has proven to be an efficient solver for corrupted linear systems and has received much attention. It was recently shown by Cai et al. (SIAM J. M…

math.NA2026

RPLSS: A randomized projected linear systems solver

Meng-Long Xiao, Tao Li, Deanna Needell

The projected linear system solver (PLSS), by incrementally appending columns to a random or deterministic sketching matrix, provides an attractive finite termination property for…

math.NA2026

Attention Mechanisms Through the Lens of Numerical Methods: Approximation Methods and Alternative Formulations

Michel Fabrice Serret, Alice Cortinovis, Yijun Dong +10

The attention mechanism is the computational core of modern Transformer architectures, but its quadratic complexity in the input sequence length is the bottleneck for large-scale i…

cs.LG2025

Are Greedy Task Orderings Better Than Random in Continual Linear Regression?

Matan Tsipory, Ran Levinstein, Itay Evron +3

We analyze task orderings in continual learning for linear regression, assuming joint realizability of training data. We focus on orderings that greedily maximize dissimilarity bet…

math.NA2025

Stochastic Gradient Descent for Incomplete Tensor Linear Systems

Anna Ma, Deanna Needell, Alexander Xue

Solving large tensor linear systems poses significant challenges due to the high volume of data stored, and it only becomes more challenging when some of the data is missing. Recen…

math.NA2025

A federated Kaczmarz algorithm

Halyun Jeong, Deanna Needell, Chi-Hao Wu

In this paper, we propose a federated algorithm for solving large linear systems that is inspired by the classic randomized Kaczmarz algorithm. We provide convergence guarantees of…

cs.LG2025

Cauchy Random Features for Operator Learning in Sobolev Space

Chunyang Liao, Deanna Needell, Hayden Schaeffer

Operator learning is the approximation of operators between infinite dimensional Banach spaces using machine learning approaches. While most progress in this area has been driven b…

math.NA2025★ 1 cited

Randomized Kaczmarz Methods with Beyond-Krylov Convergence

Michał Dereziński, Deanna Needell, Elizaveta Rebrova +1

Randomized Kaczmarz methods form a family of linear system solvers which converge by repeatedly projecting their iterates onto randomly sampled equations. While effective in some c…

cs.LG2024

Differentially Private Random Feature Model

Chunyang Liao, Deanna Needell, Hayden Schaeffer +1

Designing privacy-preserving machine learning algorithms has received great attention in recent years, especially in the setting when the data contains sensitive information. Diffe…

cs.LG2024

Convergence of Manifold Filter-Combine Networks

David R. Johnson, Joyce Chew, Siddharth Viswanath +4

In order to better understand manifold neural networks (MNNs), we introduce Manifold Filter-Combine Networks (MFCNs). The filter-combine framework parallels the popular aggregate-c…

cs.DS2024

Fine-grained Analysis and Faster Algorithms for Iteratively Solving Linear Systems

Michał Dereziński, Daniel LeJeune, Deanna Needell +1

Despite being a key bottleneck in many machine learning tasks, the cost of solving large linear systems has proven challenging to quantify due to problem-dependent quantities such…

cs.LG2024

Stochastic gradient descent for streaming linear and rectified linear systems with adversarial corruptions

Halyun Jeong, Deanna Needell, Elizaveta Rebrova

We propose SGD-exp, a stochastic gradient descent approach for linear and ReLU regressions under Massart noise (adversarial semi-random corruption model) for the fully streaming se…