LAD, LASSO and Related Strategies in Regression Models
Küçük Resim Yok
Tarih
2020
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer International Publishing Ag
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In the context of linear regression models, it is well-known that the ordinary least squares estimator is very sensitive to outliers whereas the least absolute deviations (LAD) is an alternative method to estimate the known regression coefficients. Selecting significant variables is very important; however, by choosing these variables some information may be sacrificed. To prevent this, in our proposal, we can combine the full model estimates toward the candidate sub-model, resulting in improved estimators in risk sense. In this article, we consider shrinkage estimators in a sparse linear regression model and study their relative asymptotic properties. Advantages of the proposed estimators over the usual LAD estimator are demonstrated through a Monte Carlo simulation as well as a real data example.
Açıklama
13th International Conference on Management Science and Engineering Management (ICMSEM) -- AUG 05-08, 2019 -- Brock Univ, St. Catharines, CANADA
Anahtar Kelimeler
LAD estimator, LAD-LASSO estimator, Outliers, Soft and hard thresh-holdings
Kaynak
Proceedings of The Thirteenth International Conference on Management Science and Engineering Management, Vol 1
WoS Q Değeri
N/A
Scopus Q Değeri
N/A
Cilt
1001
