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» On the Complexity of the Whitehead Minimization Problem
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KR
2004
Springer
14 years 1 months ago
An Improved Integer Local Search for Complex Scheduling Problems
We consider complex scheduling problems that can be captured as optimization under hard and soft constraints. The objective of such an optimization problem is to satisfy as many h...
Weixiong Zhang, Xiaotao Zhang
DISOPT
2010
129views more  DISOPT 2010»
13 years 7 months ago
Labeled Traveling Salesman Problems: Complexity and approximation
We consider labeled Traveling Salesman Problems, defined upon a complete graph of n vertices with colored edges. The objective is to find a tour of maximum or minimum number of co...
Basile Couëtoux, Laurent Gourvès, J&ea...
DGCI
2006
Springer
13 years 11 months ago
Minimal Decomposition of a Digital Surface into Digital Plane Segments Is NP-Hard
This paper deals with the complexity of the decomposition of a digital surface into digital plane segments (DPS for short). We prove that the decision problem (does there exist a ...
Isabelle Sivignon, David Coeurjolly
HIS
2008
13 years 9 months ago
Neural Plasticity and Minimal Topologies for Reward-Based Learning
Artificial Neural Networks for online learning problems are often implemented with synaptic plasticity to achieve adaptive behaviour. A common problem is that the overall learning...
Andrea Soltoggio
CVPR
2005
IEEE
14 years 9 months ago
A Minimal Solution for Relative Pose with Unknown Focal Length
Assume that we have two perspective images with known intrinsic parameters except for an unknown common focal length. It is a minimally constrained problem to find the relative or...
Henrik Stewénius, David Nistér, Fred...