Bayesian elastic net single index quantile regression

Taha Alshaybawee, Habshah Midi and Rahim Alhamzawi ()

Journal of Applied Statistics, 2017, vol. 44, issue 5, 853-871

Abstract: Single index model conditional quantile regression is proposed in order to overcome the dimensionality problem in nonparametric quantile regression. In the proposed method, the Bayesian elastic net is suggested for single index quantile regression for estimation and variables selection. The Gaussian process prior is considered for unknown link function and a Gibbs sampler algorithm is adopted for posterior inference. The results of the simulation studies and numerical example indicate that our propose method, BENSIQReg, offers substantial improvements over two existing methods, SIQReg and BSIQReg. The BENSIQReg has consistently show a good convergent property, has the least value of median of mean absolute deviations and smallest standard deviations, compared to the other two methods.

Date: 2017
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DOI: 10.1080/02664763.2016.1189515

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