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» A Geometric Functional for Derivatives Approximation
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TWC
2011
231views more  TWC 2011»
13 years 3 months ago
An Accurate Closed-Form Approximation of the Distributed MIMO Outage Probability
— The mutual information (MI) of multiple-input multiple-output (MIMO) system over Rayleigh fading channel is known to asymptotically follow a normal probability distribution. In...
Fabien Heliot, Reza Hoshyar, Rahim Tafazolli
SIAMJO
2008
57views more  SIAMJO 2008»
13 years 8 months ago
Universal Confidence Sets for Solutions of Optimization Problems
We consider random approximations to deterministic optimization problems. The objective function and the constraint set can be approximated simultaneously. Relying on concentratio...
Silvia Vogel
JAT
2010
120views more  JAT 2010»
13 years 7 months ago
Error bounds for anisotropic RBF interpolation
We present error bounds for the interpolation with anisotropically transformed radial basis functions for both function and its partial derivatives. The bounds rely on a growth fu...
Richard K. Beatson, Oleg Davydov, Jeremy Levesley
SIAMSC
2011
177views more  SIAMSC 2011»
13 years 3 months ago
Computing f(A)b via Least Squares Polynomial Approximations
Given a certain function f, various methods have been proposed in the past for addressing the important problem of computing the matrix-vector product f(A)b without explicitly comp...
Jie Chen, Mihai Anitescu, Yousef Saad
CORR
2010
Springer
130views Education» more  CORR 2010»
13 years 8 months ago
Approximated Structured Prediction for Learning Large Scale Graphical Models
In this paper we propose an approximated structured prediction framework for large scale graphical models and derive message-passing algorithms for learning their parameters effic...
Tamir Hazan, Raquel Urtasun