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Sharp Convergence Rates for Forward Regression in High-Dimensional Sparse Linear Models

02/03/2017
by   Damian Kozbur, et al.
Universität Zürich
0

Forward regression is a statistical model selection and estimation procedure which inductively selects covariates that add predictive power into a working statistical regression model. Once a model is selected, unknown regression parameters are estimated by least squares. This paper analyzes forward regression in high-dimensional sparse linear models. Probabilistic bounds for prediction error norm and number of selected covariates are proved. The analysis in this paper gives sharp rates and does not require beta-min or irrepresentability conditions.

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