most citedEfficient Two-Stage Gaussian Process Regression Via Automatic Kernel Search and Subsampling

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math.NA2025

Preconditioned Truncated Single-Sample Estimators for Scalable Stochastic Optimization

Tianshi Xu, Difeng Cai, Hua Huang +2

Many large-scale stochastic optimization algorithms involve repeated solutions of linear systems or evaluations of log-determinants. In these regimes, computing exact solutions is…

math.NA2025

H2-MG: A multigrid method for hierarchical rank structured matrices

Daria Sushnikova, George Turkiyyah, Edmond Chow +1

This paper presents a new fast iterative solver for large systems involving kernel matrices. Advantageous aspects of H2 matrix approximations and the multigrid method are hybridize…