A PTAS for $\ell_p$-Low Rank Approximation

arXiv: Data Structures and Algorithms, 2018.

Cited by: 0|Views38


A number of recent works have studied algorithms for entrywise $ell_p$-low rank approximation, namely algorithms which given an $n times d$ matrix $A$ (with $n geq d$), output a rank-$k$ matrix $B$ minimizing $|A-B|_p^p=sum_{i,j} |A_{i,j} - B_{i,j}|^p$. We show the following: On the algorithmic side, for $p (0,2)$, we give the first $n^{...More



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