40 search results - page 2 / 8 » Faster shortest-path algorithms for planar graphs |
ALGORITHMICA
1998
13 years 5 months ago
1998
In this paper we give a fully dynamic approximation scheme for maintaining all-pairs shortest paths in planar networks. Given an error parameter ε such that 0 < ε, our algorit...
CORR
2012
Springer
12 years 1 months ago
2012
Springer
Let G be a directed graph with n vertices and non-negative weights in its directed edges, embedded on a surface of genus g, and let f be an arbitrary face of G. We describe an alg...
COCOON
1999
Springer
13 years 10 months ago
1999
Springer
We present results related to satisfying shortest path queries on a planar graph stored in external memory. Let N denote the number of vertices in the graph and let sort(N) denote...
ISAAC
2005
Springer
13 years 11 months ago
2005
Springer
In this paper we present space-query trade-offs for external memory data structures that answer shortest path queries on planar directed graphs. For any S = Ω(N1+ ) and S = O(N2...
MICS
2008
13 years 5 months ago
2008
Multi-level overlay graphs represent a speed-up technique for shortest paths computation which is based on a hierarchical decomposition of a weighted directed graph G. They have b...