ar X iv : 0 90 3 . 25 15 v 1 [ m at h . ST ] 1 3 M ar 2 00 9 Adaptive Lasso for High Dimensional Regression and Gaussian Graphical Modeling

نویسندگان

  • Shuheng Zhou
  • Sara van de Geer
  • Peter Bühlmann
چکیده

We show that the two-stage adaptive Lasso procedure (Zou, 2006) is consistent for high-dimensional model selection in linear and Gaussian graphical models. Our conditions for consistency cover more general situations than those accomplished in previous work: we prove that restricted eigenvalue conditions (Bickel et al., 2008) are also sufficient for sparse structure estimation.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ar X iv : 0 90 3 . 19 51 v 1 [ m at h . ST ] 1 1 M ar 2 00 9 Invariance principles for linear processes . Application to isotonic regression

In this paper we prove maximal inequalities and study the functional central limit theorem for the partial sums of linear processes generated by dependent innovations. Due to the general weights these processes can exhibit long range dependence and the limiting distribution is a fractional Brownian motion. The proofs are based on new approximations by a linear process with martingale difference...

متن کامل

ar X iv : 0 80 3 . 28 39 v 1 [ m at h . ST ] 1 9 M ar 2 00 8 AGGREGATION BY EXPONENTIAL WEIGHTING , SHARP ORACLE INEQUALITIES AND SPARSITY

We study the problem of aggregation under the squared loss in the model of regression with deterministic design. We obtain sharp PAC-Bayesian risk bounds for aggregates defined via exponential weights, under general assumptions on the distribution of errors and on the functions to aggregate. We then apply these results to derive sparsity oracle inequalities.

متن کامل

ar X iv : 0 90 3 . 46 36 v 1 [ m at h . ST ] 2 6 M ar 2 00 9 Hypotheses Testing : Poisson Versus Self - Exciting

We consider the problem of hypotheses testing with the basic simple hypothesis: observed sequence of points corresponds to stationary Poisson process with known intensity. The alternatives are stationary self-exciting point processes. We consider one-sided parametric and one-sided nonparametric composite alternatives and construct locally asymptotically uniformly most powerful tests. The result...

متن کامل

ar X iv : 0 90 6 . 07 63 v 1 [ m at h . C O ] 3 J un 2 00 9 HIGHER DIMENSIONAL

We prove upper bounds on the face numbers of simplicial complexes in terms on their girths, in analogy with the Moore bound from graph theory. Our definition of girth generalizes the usual definition for graphs.

متن کامل

ar X iv : 0 90 3 . 23 83 v 1 [ m at h . N T ] 1 3 M ar 2 00 9 WITTEN MULTIPLE ZETA VALUES ATTACHED TO sl ( 4 )

In this paper we shall prove that every Witten multiple zeta value of weight w > 3 attached to sl(4) at nonnegative integer arguments is a finite Q-linear combination of MZVs of weight w and depth three or less, except for the nine irregular cases where the Riemann zeta value ζ(w − 2) and the double zeta values of weight w − 1 and depth < 3 are also needed.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2009