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  A Faster Deterministic Algorithm for Minimum Cycle Bases in Directed Graphs

Hariharan, R., Telikepalli, K., & Mehlhorn, K. (2006). A Faster Deterministic Algorithm for Minimum Cycle Bases in Directed Graphs. In Automata, Languages and Programming, 33rd International Colloquium, ICALP 2006, Part I (pp. 250-261). Berlin, Germany: Springer.

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 Urheber:
Hariharan, Ramesh1, Autor           
Telikepalli, Kavitha, Autor
Mehlhorn, Kurt1, Autor           
Bugliesi, Michele, Herausgeber
Preneel, Bart, Herausgeber
Sassone, Vladimir, Herausgeber
Wegener, Ingo, Herausgeber
Affiliations:
1Algorithms and Complexity, MPI for Informatics, Max Planck Society, ou_24019              

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 Zusammenfassung: We consider the problem of computing a minimum cycle basis in a directed graph. The input to this problem is a directed graph G whose edges have non-negative weights. A cycle in this graph is actually a cycle in the underlying undirected graph with edges traversable in both directions. A {–1,0,1} edge incidence vector is associated with each cycle: edges traversed by the cycle in the right direction get 1 and edges traversed in the opposite direction get -1. The vector space over generated by these vectors is the cycle space of G. A minimum cycle basis is a set of cycles of minimum weight that span the cycle space of G. The current fastest algorithm for computing a minimum cycle basis in a directed graph with m edges and n vertices runs in time (where ω< 2.376 is the exponent of matrix multiplication). Here we present an O(m3n + m2n2logn) algorithm. We also slightly improve the running time of the current fastest randomized algorithm from O(m2nlogn) to O(m2 n + mn2 logn).

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Sprache(n): eng - English
 Datum: 2007-04-262006
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: eDoc: 314560
Anderer: Local-ID: C1256428004B93B8-C5345CC3A9361E5BC12571CA003B984B-HTM06a
 Art des Abschluß: -

Veranstaltung

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Titel: Untitled Event
Veranstaltungsort: Venice, Italy
Start-/Enddatum: 2006-07-10

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Titel: Automata, Languages and Programming, 33rd International Colloquium, ICALP 2006, Part I
Genre der Quelle: Konferenzband
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Berlin, Germany : Springer
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: 250 - 261 Identifikator: ISBN: 3-540-35904-4

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Titel: Lecture Notes in Computer Science
Genre der Quelle: Reihe
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 4051 Artikelnummer: - Start- / Endseite: - Identifikator: -