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ICASSP
2011
IEEE
10 years 3 months ago
Efficient image reconstruction under sparsity constraints with application to MRI and bioluminescence tomography
Most bioimaging modalities rely on indirect measurements of the quantity under investigation. The image is obtained as the result of an optimization problem involving a physical m...
Matthieu Guerquin-Kern, Jean-Charles Baritaux, Mic...
ICASSP
2011
IEEE
10 years 3 months ago
Filter design with secrecy constraints: The multiple-input multiple-output Gaussian wiretap channel with zero forcing receive fi
This paper considers the problem of lter design with secrecy constraints, where two legitimate parties (Alice and Bob) communicate in the presence of an eavesdropper (Eve), over a...
Hugo Reboredo, Vinay Uday Prabhu, Miguel R. D. Rod...
HICSS
2011
IEEE
157views Biometrics» more  HICSS 2011»
10 years 3 months ago
Reusing Relational Queries for Intuitive Decision Optimization
— Decision optimization is used in many applications such as those for finding the best course of action in emergencies. However, optimization solutions require considerable mat...
Alexander Brodsky, Nathan E. Egge, Xiaoyang Sean W...
TSMC
2010
10 years 6 months ago
Multiobjective Optimization of Temporal Processes
Abstract--This paper presents a dynamic predictiveoptimization framework of a nonlinear temporal process. Datamining (DM) and evolutionary strategy algorithms are integrated in the...
Zhe Song, Andrew Kusiak
TIP
2010
113views more  TIP 2010»
10 years 6 months ago
Multiplicative Noise Removal Using Variable Splitting and Constrained Optimization
Multiplicative noise (also known as speckle noise) models are central to the study of coherent imaging systems, such as synthetic aperture radar and sonar, and ultrasound and laser...
José M. Bioucas-Dias, Mário A. T. Fi...
SIAMIS
2010
155views more  SIAMIS 2010»
10 years 6 months ago
Smoothing Nonlinear Conjugate Gradient Method for Image Restoration Using Nonsmooth Nonconvex Minimization
Image restoration problems are often converted into large-scale, nonsmooth and nonconvex optimization problems. Most existing minimization methods are not efficient for solving su...
Xiaojun Chen, Weijun Zhou
MOC
2010
10 years 6 months ago
Optimization algorithm for reconstructing interface changes of a conductivity inclusion from modal measurements
In this paper, we propose an original optimization approach for reconstructing interface changes of a conductivity inclusion from measurements of eigenvalues and eigenvectors asso...
Habib Ammari, Elena Beretta, Elisa Francini, Hyeon...
CORR
2011
Springer
181views Education» more  CORR 2011»
10 years 6 months ago
On Isolating Points Using Disks
In this paper, we consider the problem of choosing disks (that we can think of as corresponding to wireless sensors) so that given a set of input points in the plane, there exists ...
Matt Gibson, Gaurav Kanade, Kasturi R. Varadarajan
CDC
2010
IEEE
151views Control Systems» more  CDC 2010»
10 years 6 months ago
Dynamic power allocation in server farms: A Real Time Optimization approach
Abstract-- This paper concerns the power minimization problem in server farms. The power minimization problem over dynamic power allocation schemes is formally defined and formulat...
Mohammadreza Aghajani, Luca Parolini, Bruno Sinopo...
CDC
2010
IEEE
147views Control Systems» more  CDC 2010»
10 years 6 months ago
Generalized multicircumcenter trajectories for optimal design under near-independence
This work deals with trajectory optimization for a network of robotic sensors sampling a spatio-temporal random field. We examine the problem of minimizing over the space of networ...
Rishi Graham, Jorge Cortés
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