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Fast RNC and NC algorithms for finding a maximal set of paths with an application

  • Ryuhei Uehara
  • , Zhi Zhong Chen
  • , Xin He
  • Tokyo Woman's Christian University
  • Tokyo Denki University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

We present two parallel algorithms for finding a maximal set of paths in a given undirected graph. The former runs in O(log n) expected time with O(n + m) processors on a CRCW PRAM. The latter runs in O(log2 n) time with O(Δ2(n + m)/log n) processors on an EREW PRAM. The results improve on the best previous ones and can also be extended to digraphs. We then use the results to design an NC approximation algorithm for a variation of the shortest superstring problem introduced by Jiang et al. The approximation algorithm achieves a compression ratio of 1/3+εfor any ε >0.

Original languageEnglish
Title of host publicationComputing and Combinatorics - 2nd Annual International Conference, COCOON 1996, Proceedings
EditorsJin-Yi Cai, Chak Kuen Wong
PublisherSpringer Verlag
Pages209-218
Number of pages10
ISBN (Print)9783540613329
DOIs
StatePublished - 1996
Event2nd Annual International Conference on Computing and Combinatorics, COCOON 1996 - Hong Kong, Hong Kong
Duration: Jun 17 1996Jun 19 1996

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume1090

Conference

Conference2nd Annual International Conference on Computing and Combinatorics, COCOON 1996
Country/TerritoryHong Kong
CityHong Kong
Period06/17/9606/19/96

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