Hashing embeddings of optimal dimension, with applications to linear least squares

The aim of this paper is two-fold: firstly, to present subspace embedding properties for s-hashing sketching matrices, with s ≥ 1, that are optimal in the projection dimension m of the sketch, namely, m = O(d), where d is the dimension of the subspace. A diverse set of results are presented that add...

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Autori principali: Cartis, C, Fiala, J, Shao, Z
Natura: Internet publication
Lingua:English
Pubblicazione: 2021