DCG
2000
15 years 2 months ago
2000
Let A be a (d + 1)
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APPROX
2006
Springer
15 years 6 months ago
2006
Springer
We prove that any real matrix A contains a subset of at most 4k/ + 2k log(k + 1) rows whose span "contains" a matrix of rank at most k with error only (1 + ) times the er...