Peyman Milanfar (@docmilanfar) 's Twitter Profile
Peyman Milanfar

@docmilanfar

Distinguished Scientist at Google. Computational Imaging, Machine Learning, and Vision. Tweets = personal opinions. May change or disappear over time.

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linkhttp://milanfar.org calendar_today02-02-2014 22:05:20

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Peyman Milanfar (@docmilanfar) 's Twitter Profile Photo
Peyman Milanfar
@docmilanfar

a year ago

Matrix nearness problems arise often: Given matrix A, what’s the closest matrix that is, say, symmetric, positive definite, orthogonal, or bi-stochastic? Symmetry: There are many ways to symmetrize A: e.g. √AᵀA For unitarily invariant norms, closest Aₛ = (Aᵀ + A)/2 1/5