Abstract
A recent result establishing, under restricted isometry conditions, the success of sparse recovery via orthogonal matching pursuit using a number of iterations proportional to the sparsity level is extended to weak orthogonal matching pursuits. The new result also applies to a pure orthogonal matching pursuit, where the index appended to the support at each iteration is chosen to maximize the subsequent decrease of the squared norm of the residual vector.
This work was triggered by the participation of the author to the NSF-supported Workshop in Linear Analysis and Probability at Texas A&M University.
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Acknowledgements
The author is supported by the NSF grant DMS-1120622.
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Foucart, S. (2012). Stability and Robustness of Weak Orthogonal Matching Pursuits. In: Bilyk, D., De Carli, L., Petukhov, A., Stokolos, A., Wick, B. (eds) Recent Advances in Harmonic Analysis and Applications. Springer Proceedings in Mathematics & Statistics, vol 25. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-4565-4_30
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DOI: https://doi.org/10.1007/978-1-4614-4565-4_30
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