Generating Node Coordinates for Shortest-Path Computations in Transportation Networks

Brandes, Ulrik; Schulz, Frank; Wagner, Dorothea; Willhalm, Thomas

Generating Node Coordinates for Shortest-Path Computations in Transportation Networks

Dateien

preprint_174.pdfGröße: 6.07 MBDownloads: 694

Datum

2002

Autor:innen

Brandes, Ulrik

Schulz, Frank

Wagner, Dorothea

Willhalm, Thomas

Open Access-Veröffentlichung

Open Access Green

Publikationstyp

Preprint

Publikationsstatus

Published

Zusammenfassung

Speed-up techniques that exploit given node coordinates have proven useful for shortest-path computations in transportation networks and geographic information systems. To facilitate the use of such techniques when coordinates are missing from some, or even all, of the nodes in a network we generate artificial coordinates using methods from graph drawing. Experiments on a large set of German train timetables indicate that the speed-up achieved with coordinates from our drawings is close to that achieved with the true coordinates - and in some special cases even better.

Fachgebiet (DDC)

004 Informatik

Zitieren

ISO 690

BRANDES, Ulrik, Frank SCHULZ, Dorothea WAGNER, Thomas WILLHALM, 2002. Generating Node Coordinates for Shortest-Path Computations in Transportation Networks

BibTex

@unpublished{Brandes2002Gener-5977,
  year={2002},
  title={Generating Node Coordinates for Shortest-Path Computations in Transportation Networks},
  author={Brandes, Ulrik and Schulz, Frank and Wagner, Dorothea and Willhalm, Thomas}
}

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