نتایج جستجو برای: rademacher system

تعداد نتایج: 2231661  

Journal: :نظریه تقریب و کاربرد های آن 0
m. ghanbari department of mathematics, islamic azad university, farahan-branch, farahan, iran.

the aim of this paper is a) if σak2 < ∞ then σak rk(x) is in bmo that{rk(x)} is rademacher system. b) p1k=1 ak!nk (x) 2 bmo; 2k  nk < 2k+1that f!n(x)g is walsh system. c) if jakj < 1k then p1k=1 ak!k(x) 2 bmo.

The aim of this paper is a) if Σak2 < ∞ then Σak rk(x) is in BMO that{rk(x)} is Rademacher system. b) P1k=1 ak!nk (x) 2 BMO; 2k nk < 2k+1that f!n(x)g is Walsh system. c) If jakj < 1k then P1k=1 ak!k(x) 2 BMO.

2000
Mariko Yasugi Masako Washihara

We will speculate on some computational properties of the system of Rademacher functions f n g. The n-th Rademacher function n is a step function on the interval [0; 1), jumping at nitely many dyadic rationals of size 1 2 n and assuming values f1; 1g alternatingly.

2009
Yiming Ying Colin Campbell

In this paper we develop a novel probabilistic generalization bound for learning the kernel problem. First, we show that the generalization analysis of the regularized kernel learning system reduces to investigation of the suprema of the Rademacher chaos process of order two over candidate kernels, which we refer to as Rademacher chaos complexity. Next, we show how to estimate the empirical Rad...

2009
Xiaojin Zhu Timothy T. Rogers Bryan R. Gibson

We propose to use Rademacher complexity, originally developed in computational learning theory, as a measure of human learning capacity. Rademacher complexity measures a learner’s ability to fit random labels, and can be used to bound the learner’s true error based on the observed training sample error. We first review the definition of Rademacher complexity and its generalization bound. We the...

2008
Jörg Wenzel

Abstract The concept of Rademacher type p (1 ≤ p ≤ 2) plays an important role in the local theory of Banach spaces. In [3] Mascioni considers a weakening of this concept and shows that for a Banach space X weak Rademacher type p implies Rademacher type r for all r < p. As with Rademacher type p and weak Rademacher type p, we introduce the concept of Haar type p and weak Haar type p by replacing...

Journal: :Proceedings of the Japan Academy, Series A, Mathematical Sciences 1951

Journal: :J. Artif. Intell. Res. 2007
Ran El-Yaniv Dmitry Pechyony

We develop a technique for deriving data-dependent error bounds for transductive learning algorithms based on transductive Rademacher complexity. Our technique is based on a novel general error bound for transduction in terms of transductive Rademacher complexity, together with a novel bounding technique for Rademacher averages for particular algorithms, in terms of their “unlabeled-labeled” re...

Journal: :The Annals of Statistics 2005

2015
Vitaly Kuznetsov Mehryar Mohri Umar Syed

This paper presents improved Rademacher complexity margin bounds that scale linearly with the number of classes as opposed to the quadratic dependence of existing Rademacher complexity margin-based learning guarantees. We further use this result to prove a novel generalization bound for multi-class classifier ensembles that depends only on the Rademacher complexity of the hypothesis classes to ...

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