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EOR
2008
106views more  EOR 2008»
13 years 7 months ago
Convergent Lagrangian heuristics for nonlinear minimum cost network flows
We consider the separable nonlinear and strictly convex single-commodity network flow problem (SSCNFP). We develop a computational scheme for generating a primal feasible solution...
Torbjörn Larsson, Johan Marklund, Caroline Ol...

Tutorial
5367views
15 years 6 months ago
An overview of the implementation of Level Set methods, including the use of the Narrow Band Method
An easy to follow tutorial that covers the implementation details of the Narrow Band Level Set Method. It also covers the numerical approximation for PDEs governing different types...
Jonas Larsen, Thomas Greve Kristensen
MICCAI
2002
Springer
14 years 8 months ago
Line Integral Convolution for Visualization of Fiber Tract Maps from DTI
Abstract. Diffusion tensor imaging (DTI) can provide the fundamental information required for viewing structural connectivity. However, robust and accurate acquisition and processi...
Tim McGraw, Baba C. Vemuri, Zhizhou Wang, Yunmei C...
STOC
2007
ACM
83views Algorithms» more  STOC 2007»
14 years 8 months ago
Lattices that admit logarithmic worst-case to average-case connection factors
We demonstrate an average-case problem that is as hard as finding (n)-approximate shortest vectors in certain n-dimensional lattices in the worst case, where (n) = O( log n). The...
Chris Peikert, Alon Rosen
AMC
2005
94views more  AMC 2005»
13 years 7 months ago
Turing instabilities and patterns near a Hopf bifurcation
We derive a necessary and sufficient condition for Turing instabilities to occur in two-component systems of reaction-diffusion equations with Neumann boundary conditions. We appl...
Rui Dilão