Conjugate Gradient Iterative Hard Thresholding for Structured Sparsity
Greedy sparse recovery algorithms are studied in the structured sparsity (sparsity in levels) framework. Recovery guarantees are provided for Normalized Iterative Hard Thresholding and Conjugate Gradient Iterative Hard Thresholding in the form of restricted isometry properties for sparsity in levels...
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Format: | Article |
Language: | English |
Published: |
IEEE
2022-01-01
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Series: | IEEE Open Journal of Signal Processing |
Subjects: | |
Online Access: | https://ieeexplore.ieee.org/document/9904816/ |