Sciweavers

5473 search results - page 656 / 1095
» On the graph isomorphism problem
Sort
View
PDCAT
2005
Springer
16 years 10 days ago
Approximating Spanning Trees with Inner Nodes Cost
We consider the practical NP-complete problem of finding a minimum weight spanning tree with both edge weights and inner nodes weights. We present two polynomial time algorithms ...
Rudolf Fleischer, Qi Ge, Jian Li, Shijun Tian, Hai...
ACIVS
2005
Springer
16 years 9 days ago
Image Registration Using Uncertainty Transformations
Abstract. In this work we introduce a new technique for a frequently encountered problem in computer vision: image registration. The registration is computed by matching features, ...
Kristof Teelen, Peter Veelaert
ECAI
2004
Springer
16 years 7 days ago
Planning with Numerical Expressions in LPG
Abstract. We present some techniques for handling planning problems with numerical expressions that can be specified using the standard planning language PDDL. These techniques ar...
Alfonso Gerevini, Alessandro Saetti, Ivan Serina
EVOW
2004
Springer
16 years 7 days ago
Top-Down Evolutionary Image Segmentation Using a Hierarchical Social Metaheuristic
Abstract. This paper presents an application of a hierarchical social (HS) metaheuristic to region-based segmentation. The original image is modelled as a simplified image graph, w...
Abraham Duarte, Ángel Sánchez, Felip...
ICALP
2004
Springer
16 years 7 days ago
Games with Winning Conditions of High Borel Complexity
We first consider infinite two-player games on pushdown graphs. In previous work, Cachat, Duparc and Thomas [4] have presented a winning decidable condition that is Σ3-complete ...
Olivier Serre