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'Glocal' Robustness Analysis and Model Discrimination for Circadian Oscillators

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Global Continuation for Quasilinear Elliptic Systems on R-N and the Equations of Elastostatics

Charles Stuart, Hicham Georges Gebran

We consider quasilinear systems of second order elliptic equations on R-N. Using a continuation theorem based on the topological degree for C-1-Fredholm maps, we derive global properties of a maximal connected set of solutions which decay exponentially to ...

2009

Nonlinear sampling technique for microwave devices

Michael Mattes

This communication addresses the problem of any simulation tool: the accurate and efficient sampling of a physical observable with respect to a parameter. A popular sampling technique is the uniform sampling combined with a straight-line interpolation for ...

2009

Testing Alternative Ground Water Models Using Cross-Validation and Other Methods

Paolo Perona

Many methods can be used to test alternative ground water models. Of concern in this work are methods able to (1) rank alternative models (also called model discrimination) and (2) identify observations important to parameter estimates and predictions (equ ...

Wiley-Blackwell2007

Direct Closed-Loop Identification of Multi-Input Systems: Variance Analysis

Dominique Bonvin, Alireza Karimi, Ljubisa Miskovic

An analysis of the variance of the parameters of a multi-input plant estimated in closed-loop operation is performed. More specifically, the effect of the simultaneous excitation of an additional input on the variance of the estimated parameters is investi ...

2006

Accurate Face Models from Uncalibrated and Ill-Lit Video Sequences

Pascal Fua, Slobodan Ilic, Miodrag Dimitrijevic

In this paper, we propose a face reconstruction technique that produces models that not only look good when texture mapped, but are also metrically accurate. Our method is designed to work with short uncalibrated video or movie sequences, even when the lig ...

2004

Computer-intensive statistical methods

Diego Kuonen

The saddlepoint approximation was introduced into statistics in 1954 by Henry E. Daniels. This basic result on approximating the density function of the sample mean has been generalized to many situations. The accuracy of this approximation is very good, p ...

EPFL2001

Design of robust filters with improved robustness margins via parameter scaling

Ali H. Sayed

The paper describes a procedure for improving the robustness margins of robust filters via parameter scaling. The scaling parameter is chosen as the square-root factor of the inverse of a positive-definite solution to certain matrix inequalities. This choi ...

2001

Modélisation et analyse numérique de problèmes de réaction-diffusion provenant de la solidification d'alliages binaires

In this work, we are interested in elaborating models and numerical methods in order to study some phenomena which arise in the solidification of binary alloys. We propose two distinct models based on the mass and energy conservation laws as well as on cla ...

EPFL1999

Parameter Estimation in the Presence of Bounded Data Uncertainties

Ali H. Sayed

We formulate and solve a new parameter estimation problem in the presence of data uncertainties. The new method is suitable when a priori bounds on the uncertain data are available, and its solution leads to more meaningful results, especially when compare ...

Society for Industrial and Applied Mathematics1998

Electric circuit analysis

The contribution of Lausanne Polytechnic to the development of modern methods of analysis of power networks, in particular to the activities of a group of engineers constituting the `Electric Network Studies Centre', is described ...

1978