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DCG
2010
289views more  DCG 2010»
13 years 7 months ago
Algorithms for Approximate Shortest Path Queries on Weighted Polyhedral Surfaces
We consider the well known geometric problem of determining shortest paths between pairs of points on a polyhedral surface P, where P consists of triangular faces with positive we...
Lyudmil Aleksandrov, Hristo Djidjev, Hua Guo, Anil...
ICALP
1995
Springer
13 years 11 months ago
Shortest Path Queries in Digraphs of Small Treewidth
We consider the problem of preprocessing an n-vertex digraph with real edge weights so that subsequent queries for the shortest path or distance between any two vertices can be ef...
Shiva Chaudhuri, Christos D. Zaroliagis
ORL
2008
99views more  ORL 2008»
13 years 7 months ago
Some tractable instances of interval data minmax regret problems
This paper focuses on tractable instances of interval data minmax regret graph problems. More precisely, we provide polynomial and pseudopolynomial algorithms for sets of particul...
Bruno Escoffier, Jérôme Monnot, Olivi...
IDA
2010
Springer
13 years 9 months ago
A Framework for Path-Oriented Network Simplification
Abstract. We propose a generic framework and methods for simplification of large networks. The methods can be used to improve the understandability of a given network, to complemen...
Hannu Toivonen, Sébastien Mahler, Fang Zhou
SWAT
2004
Springer
146views Algorithms» more  SWAT 2004»
14 years 26 days ago
Cache-Oblivious Data Structures and Algorithms for Undirected Breadth-First Search and Shortest Paths
We present improved cache-oblivious data structures and algorithms for breadth-first search and the single-source shortest path problem on undirected graphs with non-negative edge...
Gerth Stølting Brodal, Rolf Fagerberg, Ulri...