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SIAMDM
2010
130views more  SIAMDM 2010»
13 years 7 months ago
On the Hull Number of Triangle-Free Graphs
A set of vertices C in a graph is convex if it contains all vertices which lie on shortest paths between vertices in C. The convex hull of a set of vertices S is the smallest conve...
Mitre Costa Dourado, Fábio Protti, Dieter R...
AAAI
2010
13 years 10 months ago
Single-Frontier Bidirectional Search
On the surface, bidirectional search (BDS) is an attractive idea with the potential for significant asymptotic reductions in search effort. However, the results in practice often ...
Ariel Felner, Carsten Moldenhauer, Nathan R. Sturt...
IJRR
2006
89views more  IJRR 2006»
13 years 8 months ago
Time-optimal Trajectories for an Omni-directional Vehicle
A common mobile robot design consists of three `omniwheels' arranged at the vertices of an equilateral triangle, with wheel axles aligned with the rays from the center of the...
Devin J. Balkcom, Paritosh A. Kavathekar, Matthew ...
WIOPT
2010
IEEE
13 years 7 months ago
Hub-betweenness analysis in delay tolerant networks inferred by real traces
—In this paper we study the influence of using hub nodes to relay messages in human-based delay tolerant networks (DTNs), by analyzing empirical traces obtained by human mobilit...
Giuliano Grossi, Federico Pedersini
CVPR
2010
IEEE
1171views Computer Vision» more  CVPR 2010»
14 years 5 months ago
Geodesic Star Convexity for Interactive Image Segmentation
In this paper we introduce a new shape constraint for interactive image segmentation. It is an extension of Veksler's star-convexity prior, in two ways: from a single star to ...
Varun Gulshan, Carsten Rother, Antonio Criminisi, ...