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math.NA2018
Recovery of Binary Sparse Signals with Biased Measurement Matrices
Axel Flinth, Sandra Keiper
This work treats the recovery of sparse, binary signals through box-constrained basis pursuit using biased measurement matrices. Using a probabilistic model, we provide conditions…
math.NA2017
Approximation of Generalized Ridge Functions in High Dimensions
Sandra Keiper
This paper studies the approximation of generalized ridge functions, namely of functions which are constant along some submanifolds of . We introduce the notion of li…