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math.OC2012
Sparse seismic imaging using variable projection
Aleksandr Y. Aravkin, Tristan van Leeuwen, Ning Tu
We consider an important class of signal processing problems where the signal of interest is known to be sparse, and can be recovered from data given auxiliary information about ho…
math.OC2010
Intractability of approximate multi-dimensional nonlinear optimization on independence systems
Jon Lee, Shmuel Onn, Robert Weismantel
We consider optimization of nonlinear objective functions that balance linear criteria over -element independence systems presented by linear-optimization oracles. For …