Estimation and testing under sparsit...
Geer, Sara van de.

 

  • Estimation and testing under sparsity[electronic resource] :Ecole d'Ete de probabilites de Saint-Flour XLV - 2015 /
  • 紀錄類型: 書目-電子資源 : Monograph/item
    杜威分類號: 519.544
    書名/作者: Estimation and testing under sparsity : Ecole d'Ete de probabilites de Saint-Flour XLV - 2015 // by Sara van de Geer.
    作者: Geer, Sara van de.
    出版者: Cham : : Springer International Publishing :, 2016.
    面頁冊數: xiii, 274 p. : : ill., digital ;; 24 cm.
    Contained By: Springer eBooks
    標題: Estimation theory.
    標題: Inequalities (Mathematics)
    標題: Mathematics.
    標題: Probability Theory and Stochastic Processes.
    標題: Statistical Theory and Methods.
    標題: Probability and Statistics in Computer Science.
    ISBN: 9783319327747
    ISBN: 9783319327730
    內容註: 1 Introduction -- The Lasso -- 3 The square-root Lasso -- 4 The bias of the Lasso and worst possible sub-directions -- 5 Confidence intervals using the Lasso -- 6 Structured sparsity -- 7 General loss with norm-penalty -- 8 Empirical process theory for dual norms -- 9 Probability inequalities for matrices -- 10 Inequalities for the centred empirical risk and its derivative -- 11 The margin condition -- 12 Some worked-out examples -- 13 Brouwer's fixed point theorem and sparsity -- 14 Asymptotically linear estimators of the precision matrix -- 15 Lower bounds for sparse quadratic forms -- 16 Symmetrization, contraction and concentration -- 17 Chaining including concentration -- 18 Metric structure of convex hulls.
    摘要、提要註: Taking the Lasso method as its starting point, this book describes the main ingredients needed to study general loss functions and sparsity-inducing regularizers. It also provides a semi-parametric approach to establishing confidence intervals and tests. Sparsity-inducing methods have proven to be very useful in the analysis of high-dimensional data. Examples include the Lasso and group Lasso methods, and the least squares method with other norm-penalties, such as the nuclear norm. The illustrations provided include generalized linear models, density estimation, matrix completion and sparse principal components. Each chapter ends with a problem section. The book can be used as a textbook for a graduate or PhD course.
    電子資源: http://dx.doi.org/10.1007/978-3-319-32774-7
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