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Communication Dans Un Congrès Année : 2007

On-line nonlinear sparse approximation of functions

Résumé

This paper provides new insights into on-line nonlinear sparse approximation of functions based on the coherence criterion. We revisit previous work, and propose tighter bounds on the approximation error based on the coherence criterion. Moreover, we study the connections between the coherence criterion and both the approximate linear dependence criterion and the principal component analysis. Finally, we derive a kernel normalized LMS algorithm based on the coherence criterion, which has linear computational complexity on the model order. Initial experimental results are presented on the performance of the algorithm.
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Dates et versions

hal-01966056 , version 1 (27-12-2018)

Identifiants

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Paul Honeine, Cédric Richard, José C. M. Bermudez. On-line nonlinear sparse approximation of functions. Proc. IEEE International Symposium on Information Theory (ISIT), 2007, Nice, France. pp.956 - 960, ⟨10.1109/ISIT.2007.4557347⟩. ⟨hal-01966056⟩
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