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ICCSA
2004
Springer
14 years 1 months ago
A Robust and Fast Algorithm for Computing Exact and Approximate Shortest Visiting Routes
Abstract. Given a simple n-sided polygon in the plane with a boundary partitioned into subchains some of which are convex and colored, we consider the following problem: Which is t...
Håkan Jonsson
COMPGEOM
2010
ACM
14 years 27 days ago
Finding shortest non-trivial cycles in directed graphs on surfaces
Let D be a weighted directed graph cellularly embedded in a surface of genus g, orientable or not, possibly with boundary. We describe algorithms to compute a shortest non-contrac...
Sergio Cabello, Éric Colin de Verdiè...
DCG
2008
93views more  DCG 2008»
13 years 7 months ago
Metric Combinatorics of Convex Polyhedra: Cut Loci and Nonoverlapping Unfoldings
Let S be the boundary of a convex polytope of dimension d + 1, or more generally let S be a convex polyhedral pseudomanifold. We prove that S has a polyhedral nonoverlapping unfold...
Ezra Miller, Igor Pak
ESA
2010
Springer
185views Algorithms» more  ESA 2010»
13 years 9 months ago
Fast Routing in Very Large Public Transportation Networks Using Transfer Patterns
We show how to route on very large public transportation networks (up to half a billion arcs) with average query times of a few milliseconds. We take into account many realistic fe...
Hannah Bast, Erik Carlsson, Arno Eigenwillig, Robe...
ICNSC
2007
IEEE
14 years 2 months ago
Ceiling Light Landmarks Based Localization and Motion Control for a Mobile Robot
—This paper presents ceiling light landmarks based localization and motion control for a mobile robot. The novel mechanism design for the mobile robot is introduced, and the meth...
Hongbo Wang, Hongnian Yu, Lingfu Kong