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Almost optimality of orthogonal super greedy algorithms for incoherent dictionaries.
Chunfang Shao
Peixin Ye
Published in:
Int. J. Wavelets Multiresolution Inf. Process. (2017)
Keyphrases
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greedy algorithms
greedy algorithm
sparse representation
search algorithm
knapsack problem
optimal solution
worst case
dynamic programming
language resources
search engine
objective function
evolutionary algorithm
exhaustive search
approximation ratio