Concept

Méthode de surrelaxation successive

Publications associées (45)

Splitting the Smoothed Primal-Dual Gap: Optimal Alternating Direction Methods

We develop rigorous alternating direction optimization methods for a prototype constrained convex optimization template, which has broad applications in computational sciences. We build upon our earlier work on the model-based gap reduction (MGR) technique ...

Tech. Report. LIONS-EPFL (2015)2015

An optimal first-order primal-dual gap reduction framework for constrained convex optimization

Volkan Cevher, Quoc Tran Dinh

We introduce an analysis framework for constructing optimal first-order primal-dual methods for the prototypical constrained convex optimization template. While this class of methods offers scalability advantages in obtaining numerical solutions, they have ...

Tech. Report. LIONS-EPFL (2015)2015

A Modeling Environment for the Simulation and Design of Charge Redistribution DACs Used in SAR ADCs

Andrea Bonetti

The optimal design of successive approximation register (SAR) analog-to-digital converters (ADCs) requires the accurate estimate of nonlinearity and parasitic capacitance effects in the feedback charge-redistribution digital-to-analog converters (DACs). Si ...

2014

Image acquisition method and system

Assim Boukhayma

A method of acquiring an image of a scene illuminated by a first beam, by means of a sensor including at least two pixels, including the steps of: a) for each pixel, reading a first output value of the pixel representative of the intensity of the radiation ...

2014

An Evaluation of Moreau’s time-stepping scheme for the simulation of a legged robot

Roland Siegwart

A state-of-the-art simulation technique that solves the equations of motion together with the set-valued contact and impulse laws by the time-stepping scheme of Moreau is introduced to the legged robotics community. An analysis is given that shows which of ...

2014

Subspace Methods For Computing The Pseudospectral Abscissa And The Stability Radius

Daniel Kressner

The pseudospectral abscissa and the stability radius are well-established tools for quantifying the stability of a matrix under unstructured perturbations. Based on first-order eigenvalue expansions, Guglielmi and Overton [SIAM J. Matrix Anal. Appl., 32 (2 ...

Siam Publications2014

Partitioned Algorithms for Fluid-Structure Interaction Problems in Haemodynamics

Fabio Nobile, Christian Vergara

We consider the fluid-structure interaction problem arising in haemodynamic applications. The finite elasticity equations for the vessel are written in Lagrangian form, while the Navier-Stokes equations for the blood in Arbitrary Lagrangian Eulerian form. ...

Birkhäuser-Verlag, Springer2012

Boosting the Sensitivity of Ligand-Protein Screening by NMR of Long-Lived States

Geoffrey Bodenhausen, Christian Heinis, Aurélien Bornet, Inmaculada Rentero Rebollo, Alessandro Angelini, Simone Ulzega, Nicola Salvi, Roberto Buratto

A new NMR method for the study of ligand protein interactions exploits the unusual lifetimes of long-lived states (LLSs). The new method provides better contrast between bound and free ligands and requires a protein-ligand ratio ca. 25 times lower than for ...

2012

Capacitorless 1T DRAM sensing scheme with automatic reference generation

Maher Kayal, Michel Declercq, Serguei Okhonin, Marc Pastre, Louis Harik

To perform a current sensing in capacitorless 1-transistor (IT) DRAMs on SOI, we have developed a sensing scheme with automatic reference generation. The reference current is generated by an adjustable current source. The electrical calibration of the refe ...

2006

Efficient Diffusion-based Illumination Normalization for Face Verification

Sébastien Marcel, Guillaume Heusch

In this paper, the problem of face verification across illumination is addressed. In order to cope with different lighting conditions, a preprocessing step is applied to the face image so as to make it independent on the illumination conditions. The illumi ...

IDIAP2005

Graph Chatbot

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

Connectez-vous pour utiliser Chat avec Graph Search