Sciweavers

982 search results - page 54 / 197
» Solving Steiner tree problems in graphs to optimality
Sort
View
IWOCA
2010
Springer
232views Algorithms» more  IWOCA 2010»
14 years 4 months ago
Computing Role Assignments of Proper Interval Graphs in Polynomial Time
A homomorphism from a graph G to a graph R is locally surjective if its restriction to the neighborhood of each vertex of G is surjective. Such a homomorphism is also called an R-r...
Pinar Heggernes, Pim van 't Hof, Daniël Paulu...
FMSD
2007
97views more  FMSD 2007»
14 years 10 months ago
On the optimal reachability problem of weighted timed automata
We study the cost-optimal reachability problem for weighted timed automata such that positive and negative costs are allowed on edges and locations. By optimality, we mean an infi...
Patricia Bouyer, Thomas Brihaye, Véronique ...
CVPR
2010
IEEE
15 years 6 months ago
Globally Optimal Pixel Labeling Algorithms for Tree Metrics
We consider pixel labeling problems where the label set forms a tree, and where the observations are also labels. Such problems arise in feature-space analysis with a very large...
Pedro Felzenszwalb, Gyula Pap, Eva Tardos, Ramin Z...
GECCO
2006
Springer
152views Optimization» more  GECCO 2006»
15 years 1 months ago
An agent-based algorithm for generalized graph colorings
This paper presents an algorithm for solving a number of generalized graph coloring problems. Specifically, it gives an agent-based algorithm for the Bandwidth Coloring problem. U...
Thang Nguyen Bui, ThanhVu H. Nguyen
WEA
2007
Springer
158views Algorithms» more  WEA 2007»
15 years 4 months ago
A Primal Branch-and-Cut Algorithm for the Degree-Constrained Minimum Spanning Tree Problem
The degree-constrained minimum spanning tree (DCMST) is relevant in the design of networks. It consists of finding a spanning tree whose nodes do not exceed a given maximum degree...
Markus Behle, Michael Jünger, Frauke Liers