Randomized sparsification of the vectors in LAPACK's 1-norm estimator produces sublinear-cost estimates whose mean errors are small on the paper's test suite.
Cohen, Nearly tight oblivious subspace embed dings by trace inequali- ties, 27th ACM-SIAM Symp
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Superfast 1-Norm Estimation
Randomized sparsification of the vectors in LAPACK's 1-norm estimator produces sublinear-cost estimates whose mean errors are small on the paper's test suite.