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IJWIN
2007
68views more  IJWIN 2007»
14 years 11 months ago
Density-Independent, Scalable Search in Ad Hoc Networks
— We analyze the asymptotic cost of discovering a route within a flat ad hoc network and we show that one can discover a route with cost that is proportional only to the area of...
Zygmunt J. Haas, Rimon Barr
INFORMS
2008
241views more  INFORMS 2008»
14 years 12 months ago
Solving the Capacitated Local Access Network Design Problem
We propose an exact solution method for a routing and capacity installation problem in networks. Given an input graph, the problem is to route traffic from a set of source nodes t...
F. Sibel Salman, R. Ravi, John N. Hooker
CONSTRAINTS
2008
138views more  CONSTRAINTS 2008»
14 years 12 months ago
Minimization of Locally Defined Submodular Functions by Optimal Soft Arc Consistency
Submodular function minimization is a polynomially-solvable combinatorial problem. Unfortunately the best known general-purpose algorithms have high-order polynomial time complexi...
Martin C. Cooper
TASLP
2008
117views more  TASLP 2008»
14 years 11 months ago
Auditory-Based Spectral Amplitude Estimators for Speech Enhancement
We propose a new family of Bayesian estimators for speech enhancement where the cost function includes both a power law and a weighting factor. The parameters of the cost function,...
Eric Plourde, Benoît Champagne
TCSV
2008
87views more  TCSV 2008»
14 years 11 months ago
On Iterative Regularization and Its Application
Many existing techniques for image restoration can be expressed in terms of minimizing a particular cost function. Iterative regularization methods are a novel variation on this th...
Michael R. Charest, Peyman Milanfar