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cs.DS2026
Well-Conditioned Oblivious Perturbations in Linear Space
Shabarish Chenakkod, MichaÅ DereziÅski, Xiaoyu Dong +1
Perturbing a deterministic -dimensional matrix with small Gaussian noise is a cornerstone of smoothed analysis of algorithms [Spielman and Teng, JACM 2004], as it reduces the co…
cs.DS2024
Optimal Embedding Dimension for Sparse Subspace Embeddings
Shabarish Chenakkod, MichaÅ DereziÅski, Xiaoyu Dong +1
A random matrix is an oblivious subspace embedding (OSE) with parameters , and , if for any -dimensional subspace $W\subseteq…