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NIPS
2004
14 years 11 months ago
A Direct Formulation for Sparse PCA Using Semidefinite Programming
We examine the problem of approximating, in the Frobenius-norm sense, a positive, semidefinite symmetric matrix by a rank-one matrix, with an upper bound on the cardinality of its...
Alexandre d'Aspremont, Laurent El Ghaoui, Michael ...
VCIP
2003
178views Communications» more  VCIP 2003»
14 years 11 months ago
Geometrical image compression with bandelets
This paper introduces a new class of bases, called bandelet bases, which decompose the image along multiscale vectors that are elongated in the direction of a geometric flow. Thi...
Erwan Le Pennec, Stéphane Mallat
NHM
2010
83views more  NHM 2010»
14 years 4 months ago
Schwarz waveform relaxation algorithms for semilinear reaction-diffusion equations
We introduce nonoverlapping domain decomposition algorithms of Schwarz waveform relaxation type for the semilinear reaction-diffusion equation. We define linear Robin and second or...
Filipa Caetano, Martin J. Gander, Laurence Halpern...
INFOCOM
2003
IEEE
15 years 3 months ago
A Queueing Network Model of an Edge Optical Burst Switching Node
— We consider an edge optical burst switching (OBS) node with or without converters, and with no buffering. The OBS node serves a number of users, each connected to the switch ov...
Lisong Xu, Harry G. Perros, George N. Rouskas
CORR
2011
Springer
187views Education» more  CORR 2011»
14 years 4 months ago
Global Stability Analysis of Fluid Flows using Sum-of-Squares
This paper introduces a new method for proving global stability of fluid flows through the construction of Lyapunov functionals. For finite dimensional approximations of fluid...
Paul Goulart, Sergei Chernyshenko