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cs.IT2024
Sparse Recovery for Overcomplete Frames: Sensing Matrices and Recovery Guarantees
Xuemei Chen, Christian Kümmerle, Rongrong Wang
Signal models formed as linear combinations of few atoms from an over-complete dictionary or few frame vectors from a redundant frame have become central to many applications in hi…
cs.IT2021
Dictionary-Sparse Recovery From Heavy-Tailed Measurements
Pedro Abdalla, Christian Kümmerle
The recovery of signals that are sparse not in a basis, but rather sparse with respect to an over-complete dictionary is one of the most flexible settings in the field of compresse…