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08/28/2020
Uniquely optimal codes of low complexity are symmetric
We formulate explicit predictions concerning the symmetry of optimal cod...
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03/08/2018
Nearly orthogonal vectors and small antipodal spherical codes
How can d+k vectors in R^d be arranged so that they are as close to orth...
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02/01/2018
On a fractional version of Haemers' bound
In this note, we present a fractional version of Haemers' bound on the S...
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02/18/2014
Classification with Sparse Overlapping Groups
Classification with a sparsity constraint on the solution plays a centra...
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11/20/2013