Regularized bridge-type estimation with multiple penalties,Annals of the Institute of Statistical Mathematics

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Regularized bridge-type estimation with multiple penalties
Annals of the Institute of Statistical Mathematics ( IF 1 ) Pub Date : 2020-11-09 , DOI: 10.1007/s10463-020-00769-w
Alessandro De Gregorio , Francesco Iafrate

The aim of this paper is to introduce an adaptive penalized estimator for identifying the true reduced parametric model under the sparsity assumption. In particular, we deal with the framework where the unpenalized estimator of the structural parameters needs simultaneously multiple rates of convergence (i.e. the so-called mixed-rates asymptotic behavior). We introduce a Bridge-type estimator by taking into account penalty functions involving $\ell^q$ norms $(0

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