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K-step analysis of orthogonal greedy algorithms for non-negative sparse representations.
Thanh Thi Nguyen
Charles Soussen
Jérôme Idier
El-Hadi Djermoune
Published in:
Signal Process. (2021)
Keyphrases
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sparse representation
greedy algorithms
data sets
probabilistic model
dimensionality reduction
dictionary learning
compressive sensing
computer vision
image classification
joint optimization