Publications related to An Efficient Sampling Algorithm for Non-smooth Composite Potentials

Concentration Compactness for critical wave maps

Wave maps are the simplest wave equations taking their values in a Riemannian manifold (M,g). Their Lagrangian is the same as for the scalar equation, the only difference being that lengths are measured with respect to the metric g. By Noether's theorem, s ...

European Mathematical Society2012

Non-Stationary Hydrologic Transport in the Vadose Zone: Experimental Results of Multiple Tracer Injections in Lysimeters

Andrea Rinaldo, Pierre Claude Jean Queloz

Travel and residence times are well-known descriptors of hydrologic and solute transport in the vadose zone. It has been observed that their probability density functions are stationary only under specific conditions, rarely encountered in natural catchmen ...

2012

A Dual Algorithm for $ L _{ 1 } $ -Regularized Reconstruction of Vector Fields

Michaël Unser, Emrah Bostan, Pouya Dehghani Tafti

Recent advances in vector-field imaging have brought to the forefront the need for efficient denoising and reconstruction algorithms that take the physical properties of vector fields into account and can be applied to large volumes of data. With these req ...

IEEE2012

Effect of mixing on the early hydration of alite and OPC systems

Karen Scrivener, Emmanuel Gallucci, Patrick Juilland, Aditya Kumar

The kinetics of hydration of cementitious materials is sensitive to the mixing procedure. High shear mixing conditions lead to an increase in the kinetics of hydration at early age compared to low shearing conditions such as hand mixing. In this study the ...

Pergamon-Elsevier Science Ltd2012

Computational Methods For Structured Sparse Component Analysis of Convolutive Speech Mixtures

Hervé Bourlard, Volkan Cevher, Afsaneh Asaei

We cast the under-determined convolutive speech separation as sparse approximation of the spatial spectra of the mixing sources. In this framework we compare and contrast the major practical algorithms for structured sparse recovery of speech signal. Speci ...

2012

Computational Methods For Structured Sparse Component Analysis of Convolutive Speech Mixtures

Hervé Bourlard, Volkan Cevher, Afsaneh Asaei

We cast the under-determined convolutive speech separation as sparse approximation of the spatial spectra of the mixing sources. In this framework we compare and contrast the major practical algorithms for structured sparse recovery of speech signal. Speci ...

2012

An optimal first-order solver for the TV-$L_1$ optical flow problem

Pierre Vandergheynst, Gilles Puy, Emmanuel D'Angelo

In this study, we address the problem of computing efficiently a dense optical flow between two images under a total variation (TV) regularization and an

L_1

norm data fidelity constraint using a variational method. We build upon Nesterov's framework for ...

2010

Subtree-based bounds and simulation-based estimations for the partition function

Mehdi Molkaraie

Many different algorithms developed in statistical physics, coding theory, signal processing, and artificial intelligence can be expressed by graphical models and solved (either exactly or approximately) with iterative message-passing algorithms on the mod ...

EPFL2007

Uncertainty analysis for the steady-state flows in a dual throat nozzle

Jan Sickmann Hesthaven

It is well known that the steady state of an isentropic flow in a dual-throat nozzle with equal throat areas is not unique. In particular there is a possibility that the flow contains a shock wave, whose location is determined solely by the initial conditi ...

ACADEMIC PRESS INC ELSEVIER SCIENCE2005

SAMARIS D13 - Report on preliminary studies for the use of HPFRCC for the rehabilitation of road infrastructure components

Emmanuel Denarié, Katrin Habel

The aims of the preliminary study reported in this document were twofold. Firstly, within the context of the application of UHPFRC for the rehabilitation of reinforced concrete structures, to identify the phenomena that require further study with respect t ...

MCS/SAMARIS2004

An Efficient Sampling Algorithm for Non-smooth Composite Potentials

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Concentration Compactness for critical wave maps

Non-Stationary Hydrologic Transport in the Vadose Zone: Experimental Results of Multiple Tracer Injections in Lysimeters

A Dual Algorithm for $ L _{ 1 } $ -Regularized Reconstruction of Vector Fields

Effect of mixing on the early hydration of alite and OPC systems

Computational Methods For Structured Sparse Component Analysis of Convolutive Speech Mixtures

Computational Methods For Structured Sparse Component Analysis of Convolutive Speech Mixtures

An optimal first-order solver for the TV-$L_1$ optical flow problem

Subtree-based bounds and simulation-based estimations for the partition function

Uncertainty analysis for the steady-state flows in a dual throat nozzle

SAMARIS D13 - Report on preliminary studies for the use of HPFRCC for the rehabilitation of road infrastructure components

Non-Stationary Hydrologic Transport in the Vadose Zone: Experimental Results of Multiple Tracer Injections in Lysimeters

Concentration Compactness for critical wave maps

A Dual Algorithm for $ L _{ 1 } $ -Regularized Reconstruction of Vector Fields

An optimal first-order solver for the TV-$L_1$ optical flow problem

Effect of mixing on the early hydration of alite and OPC systems

Computational Methods For Structured Sparse Component Analysis of Convolutive Speech Mixtures

Computational Methods For Structured Sparse Component Analysis of Convolutive Speech Mixtures

Uncertainty analysis for the steady-state flows in a dual throat nozzle

Subtree-based bounds and simulation-based estimations for the partition function

SAMARIS D13 - Report on preliminary studies for the use of HPFRCC for the rehabilitation of road infrastructure components