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math.NA2026
Incremental Column Subset Selection via Conditional Determinantal Point Processes
Laura Grigori, Zhipeng Xue
Column subset selection aims to seek a small set of representative columns that accurately approximates a given matrix. We study this problem from the perspective of determinantal…
math.NA2025
Randomized strong rank-revealing QR for column subset selection and low-rank matrix approximation
Laura Grigori, Zhipeng Xue
We discuss a randomized strong rank-revealing QR factorization that effectively reveals the spectrum of a matrix . This factorization can be used to address problems su…