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stat.ME2018
Model selection with lasso-zero: adding straw to the haystack to better find needles
Pascaline Descloux, Sylvain Sardy
The high-dimensional linear model is considered and the focus is put on the problem of recovering the support of the sparse vector We introduce Lasso-Z…
stat.ME2016
Threshold Selection for Total Variation Denoising
Sylvain Sardy, Hatef Monajemi
Total variation (TV) denoising is a nonparametric smoothing method that has good properties for preserving sharp edges and contours in objects with spatial structures like natural…
stat.ME2013★ 2 cited
Blockwise and coordinatewise thresholding to combine tests of different natures in modern ANOVA
Sylvain Sardy
We derive new tests for fixed and random ANOVA based on a thresholded point estimate. The pivotal quantity is the threshold that sets all the coefficients of the null hypothesis to…