×

Robust regularization theory based on \(L_q\) \((0<q<1)\) regularization: the asymptotic distribution and variable selection consistence of solutions. (Chinese. English summary) Zbl 1488.62100

Summary: In this paper, we introduce the robust \(L_q\) \((0<q<1)\) regularization model, and then prove the global asymptotic distribution theorem for solutions of the model we propose. Applying the results, we can derive the model based on \(L_q\) \((0<q<1)\) regularization satisfying the consistent property of variable selection; in other words, it has the capacity of variable selection. To solve this model, we develop an iterative weighted algorithm without extra parameters, and give the corresponding strategy of selecting regularization parameters. The experiment results reveal that the algorithm we introduce is available, efficient and widely valuable.

MSC:

62J05 Linear regression; mixed models
62F12 Asymptotic properties of parametric estimators
62F35 Robustness and adaptive procedures (parametric inference)
62E20 Asymptotic distribution theory in statistics
Full Text: DOI