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SIAMIS
2010
155views more  SIAMIS 2010»
15 years 1 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
SIAMSC
2010
159views more  SIAMSC 2010»
15 years 1 months ago
The Fast Generalized Gauss Transform
The fast Gauss transform allows for the calculation of the sum of N Gaussians at M points in O(N + M) time. Here, we extend the algorithm to a wider class of kernels, motivated by ...
Marina Spivak, Shravan K. Veerapaneni, Leslie Gree...
TOSEM
2010
168views more  TOSEM 2010»
15 years 1 months ago
Analysis and applications of timed service protocols
Web services are increasingly gaining acceptance as a framework for facilitating application-to-application interactions within and across enterprises. It is commonly accepted tha...
Julien Ponge, Boualem Benatallah, Fabio Casati, Fa...
TSP
2010
15 years 1 months ago
SNR estimation for multilevel constellations using higher-order moments
Abstract--The performance of existing moments-based nondata-aided (NDA) estimators of signal-to-noise ratio (SNR) in digital communication systems substantially degrades with multi...
Marcos Álvarez-Díaz, Roberto L&oacut...
TSP
2010
15 years 1 months ago
Analysis of the Stereophonic LMS/Newton Algorithm and Impact of Signal Nonlinearity on Its Convergence Behavior
The strong cross-correlation that exists between the two input audio channels makes the problem of stereophonic acoustic echo cancellation (AEC) complex and challenging to solve. R...
Harsha I. K. Rao, Behrouz Farhang-Boroujeny