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PR
2006
80views more  PR 2006»
14 years 10 months ago
Neighborhood size selection in the k-nearest-neighbor rule using statistical confidence
The k-nearest-neighbor rule is one of the most attractive pattern classification algorithms. In practice, the choice of k is determined by the cross-validation method. In this wor...
Jigang Wang, Predrag Neskovic, Leon N. Cooper
SIAMIS
2008
279views more  SIAMIS 2008»
14 years 10 months ago
A New Alternating Minimization Algorithm for Total Variation Image Reconstruction
We propose, analyze and test an alternating minimization algorithm for recovering images from blurry and noisy observations with total variation (TV) regularization. This algorith...
Yilun Wang, Junfeng Yang, Wotao Yin, Yin Zhang
SIAMSC
2008
118views more  SIAMSC 2008»
14 years 10 months ago
Splitting Methods Based on Algebraic Factorization for Fluid-Structure Interaction
We discuss in this paper the numerical approximation of fluid-structure interaction (FSI) problems dealing with strong added-mass effect. We propose new semi-implicit algorithms ba...
Santiago Badia, Annalisa Quaini, Alfio Quarteroni
SIAMSC
2008
110views more  SIAMSC 2008»
14 years 10 months ago
Large-Eddy Simulation of Thermal Flows based on Discrete-Velocity Models
We derive a Godunov-type relaxation scheme for turbulent flows with heat transfer. The building block of this approach is a kinetic Boltzmann-type formulation for a model of turbul...
Mapundi K. Banda, Mohammed Seaïd, Ioan Teleag...
SIAMSC
2008
191views more  SIAMSC 2008»
14 years 10 months ago
ORBIT: Optimization by Radial Basis Function Interpolation in Trust-Regions
Abstract. We present a new derivative-free algorithm, ORBIT, for unconstrained local optimization of computationally expensive functions. A trust-region framework using interpolati...
Stefan M. Wild, Rommel G. Regis, Christine A. Shoe...