Sciweavers

CATA
2004
13 years 6 months ago
Optimal Trees for the Parametric Fixed Charge Shortest Paths Problem
We investigate a variant of the Fixed Charge Shortest Paths problem which enumerates the sequence of optimal solutions that arise as the focus shifts from the fixed cost parameter...
Fred J. Rispoli, Steven Cosares
COLING
2008
13 years 6 months ago
Exploiting Graph Structure for Accelerating the Calculation of Shortest Paths in Wordnets
This paper presents an approach for substantially reducing the time needed to calculate the shortest paths between all concepts in a wordnet. The algorithm exploits the unique &qu...
Holger Wunsch
ATMOS
2007
13 years 6 months ago
Maintenance of Multi-level Overlay Graphs for Timetable Queries
In railways systems the timetable is typically represented as a weighted digraph on which itinerary queries are answered by shortest path algorithms, usually running Dijkstra’s a...
Francesco Bruera, Serafino Cicerone, Gianlorenzo D...
FAW
2008
Springer
127views Algorithms» more  FAW 2008»
13 years 6 months ago
Visiting a Polygon on the Optimal Way to a Query Point
Abstract. We study a constrained version of the shortest path problem in polygonal domains, in which the path must visit a given target polygon. We provide an efficient algorithm f...
Ramtin Khosravi, Mohammad Ghodsi
FOCS
1994
IEEE
13 years 8 months ago
Finding the k Shortest Paths
We describe algorithms for finding the k shortest paths connecting a given pair of vertices in a digraph (allowing cycles). Our algorithms output an implicit representation of the...
David Eppstein
MFCS
2000
Springer
13 years 8 months ago
On the Use of Duality and Geometry in Layouts for ATM Networks
Abstract. We show how duality properties and geometric considerations are used in studies related to virtual path layouts of ATM networks. We concentrate on the one-to-many problem...
Shmuel Zaks
DIAGRAMS
2006
Springer
13 years 8 months ago
Exploring the Effect of Animation and Progressive Revealing on Diagrammatic Problem Solving
We conducted eye-tracking studies of subjects solving the problem of finding shortest paths in a graph using a known procedure (Dijkstra's algorithm). The goal of these studie...
Daesub Yoon, N. Hari Narayanan, SooCheol Lee, Oh-C...
CNSR
2010
IEEE
140views Communications» more  CNSR 2010»
13 years 8 months ago
Performance Evaluation of Using a Dynamic Shortest Path Algorithm in OLSRv2
—MANET routing protocols are designed to scale up to thousands of routers with frequent changes of the topology. In preference, MANET routing protocols should also support constr...
Ulrich Herberg
COCOON
1999
Springer
13 years 8 months ago
An External Memory Data Structure for Shortest Path Queries
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...
David A. Hutchinson, Anil Maheshwari, Norbert Zeh
GD
2009
Springer
13 years 9 months ago
Fast Edge-Routing for Large Graphs
To produce high quality drawings of graphs with nodes drawn as shapes it is important to find routes for the edges which do not intersect node boundaries. Recent work in this area...
Tim Dwyer, Lev Nachmanson