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Short and squeezed: accelerating the computation of antisparse representations with safe squeezing
Abstract : Antisparse coding aims at spreading the information uniformly over representation coefficients and can be expressed as the solution of an ∞-norm regularized problem. In this paper, we propose a new methodology, coined "safe squeezing", accelerating the computation of antisparse representations. The idea consists in identifying saturated entries of the solution via simple tests and compact their contribution to achieve some form of dimensionality reduction. Numerical experiments show that the proposed approach leads to significant computational gain.
https://hal.inria.fr/hal-03070344
Contributor : Cédric Herzet Connect in order to contact the contributor
Submitted on : Tuesday, December 15, 2020 - 6:07:31 PM
Last modification on : Tuesday, January 4, 2022 - 5:53:44 AM
Long-term archiving on: : Tuesday, March 16, 2021 - 8:15:51 PM
Contributor : Cédric Herzet Connect in order to contact the contributor
Submitted on : Tuesday, December 15, 2020 - 6:07:31 PM
Last modification on : Tuesday, January 4, 2022 - 5:53:44 AM
Long-term archiving on: : Tuesday, March 16, 2021 - 8:15:51 PM
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IcasspAntisparse.pdf
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