搜索结果: 1-3 共查到“数理统计学 oracle inequalities”相关记录3条 . 查询时间(0.078 秒)
We study soft threshold estimates of the non-centrality parameter ξ of a non-central χ2
d(ξ)
distribution, of interest, for example, in estimation of the squared length of the mean of a
Gaussian ve...
General nonexact oracle inequalities for classes with a subexponential envelope
Statistical learning fast rates of convergence oracle inequalities regularization classification aggregation model selection
2012/6/21
We show that empirical risk minimization procedures and regularized empirical risk minimization procedures satisfy nonexact oracle inequalities in an unbounded framework, under the assumption that the...
Non-asymptotic Oracle Inequalities for the Lasso and Group Lasso in high dimensional logistic model
Logistic model Lasso Group Lasso High-dimensional
2012/6/19
We consider the problem of estimating a function $f_{0}$ in logistic regression model. We propose to estimate this function $f_{0}$ by a sparse approximation build as a linear combinaison of elements ...