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Sparse Harmonic Transforms II: Best s-Term Approximation Guarantees for Bounded Orthonormal Product Bases in Sublinear-Time.
Bosu Choi
Mark A. Iwen
Toni Volkmer
Published in:
CoRR (2019)
Keyphrases
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approximation guarantees
sparse matrix
basis functions
greedy algorithm
approximation algorithms
denoising
np hard
approximation ratio
high dimensional
lower bound
vector field
objective function
sparse representation
minimum cost
production planning
dynamic programming
constant factor
training set