Publications related to Radius of convergence

Comparison of Gradient Estimation Methods for Real-time Optimization

Various real-time optimization techniques proceed by controlling the gradient to zero. These methods primarily differ in the way the gradient is estimated. This paper compares various gradient estimation methods. It is argued that methods with model-based ...

Elsevier2011

Iterative Learning Control Using Stochastic Approximation Theory with Application to a Mechatronic System

Alireza Karimi, Mark Edward John Butcher

In this paper it is shown how Stochastic Approximation theory can be used to derive and analyse well-known Iterative Learning Control algorithms for linear systems. The Stochastic Approximation theory gives conditions that, when satisfied, ensure almost su ...

Springer2010

Robust Ultrasound Travel-time Tomography Using the Bent Ray Model

Martin Vetterli, Olivier Roy, Ali Hormati, Ivana Jovanovic

We present a bent ray reconstruction algorithm for an ultrasound tomography (UT) scanner designed for breast screening. The scanner consists of a circular array of transmitters and receivers which encloses the object to be imaged. By solving a nonlinear sy ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2010

Accelerated Wavelet-Regularized Deconvolution For 3-D Fluorescence Microcopy

Michaël Unser, Matthieu Guerquin-Kern, Ilker Bayram, Raquel Terrés Cristofani

Modern deconvolution algorithms are often specified as minimization problems involving a non-quadratic regularization functional. When the latter is a wavelet-domain l(1)-norm that favors sparse solutions, the problem can be solved by a simple iterative sh ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2010

Diffusion LMS Strategies for Distributed Estimation

Ali H. Sayed

We consider the problem of distributed estimation, where a set of nodes is required to collectively estimate some parameter of interest from noisy measurements. The problem is useful in several contexts including wireless and sensor networks, where scalabi ...

IEEE2010

Accelerated Wavelet-Regularized Deconvolution for 3-D Fluorescence Microcopy

Michaël Unser, Matthieu Guerquin-Kern, Ilker Bayram, Raquel Terrés Cristofani

Modern deconvolution algorithms are often specified as minimization problems involving a non-quadratic regularization functional. When the latter is a wavelet-domain

ℓ _{ 1 }

-norm that favors sparse solutions, the problem can be solved by a simple it ...

IEEE2010

The relative contributions of private information sharing and public information releases to information aggregation

Semyon Malamud, Darrell Duffie

We calculate learning rates when agents are informed through public and private observation of other agents' actions. We characterize the evolution of the distribution of posterior beliefs. If the private learning channel is present, convergence of the dis ...

Elsevier2010

Polynomial Filter Design for Quantized Consensus

Pascal Frossard, Effrosyni Kokiopoulou, Hyung Gon Park

We consider the problem of distributed average consensus where sensors exchange quantized data with their neighbors. We deploy a polynomial filtering approach in the network nodes in order to accelerate the convergence of the consensus problem. The quantiz ...

2010

Introduction to Geometric Mechanics and AVI

Yves Weinand, Tudor Ratiu, François Marie Alain Demoures

The goal of this short presentation is to introduce Geometric Mechanics as well as Asynchronous Variational Integrators (AVI). The geometric point of view in mechanics combined with solid analysis has been a phenomenal success in linking various diverse ar ...

2010

Postal Markets and Electronic Substitution: What is the Impact of Intermodal Competition on Regulatory Practices and Institutions

Martin Maegli

This increasing convergence between postal products and telecom applications is a new phenomenon in the communications environment: Postal operators provide new services on telecom infrastructures, telecom infrastructures are likely to substitute last mile ...

2010

Radius of convergence

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Comparison of Gradient Estimation Methods for Real-time Optimization

Iterative Learning Control Using Stochastic Approximation Theory with Application to a Mechatronic System

Robust Ultrasound Travel-time Tomography Using the Bent Ray Model

Accelerated Wavelet-Regularized Deconvolution For 3-D Fluorescence Microcopy

Diffusion LMS Strategies for Distributed Estimation

Accelerated Wavelet-Regularized Deconvolution for 3-D Fluorescence Microcopy

The relative contributions of private information sharing and public information releases to information aggregation

Polynomial Filter Design for Quantized Consensus

Introduction to Geometric Mechanics and AVI

Postal Markets and Electronic Substitution: What is the Impact of Intermodal Competition on Regulatory Practices and Institutions

Postal Markets and Electronic Substitution: What is the Impact of Intermodal Competition on Regulatory Practices and Institutions

Accelerated Wavelet-Regularized Deconvolution For 3-D Fluorescence Microcopy

Comparison of Gradient Estimation Methods for Real-time Optimization

Polynomial Filter Design for Quantized Consensus

The relative contributions of private information sharing and public information releases to information aggregation

Robust Ultrasound Travel-time Tomography Using the Bent Ray Model

Introduction to Geometric Mechanics and AVI

Diffusion LMS Strategies for Distributed Estimation

Accelerated Wavelet-Regularized Deconvolution for 3-D Fluorescence Microcopy

Iterative Learning Control Using Stochastic Approximation Theory with Application to a Mechatronic System