On the problem of finding all maximum weight independent sets in intervaland circular-arc graphs

Y. D. Liang, S. K. Dhall, S. Lakshmivarahan

Research output: Contribution to book or proceedingConference articlepeer-review

8 Scopus citations

Abstract

Leung (J. Algorithms, 5 (1984)) presented algorithms for generating all the maximal independent sets in interval graphs and circular-arc graphs. The algorithms take O (n2+p) steps, where β is the sum of the number of nodes in all maximal independent sets. In this paper we use a new technique to give fast and efficient algorithms for finding all the maximum weight independent sets in interval graphs and circular-arc graphs. Our algorithms take 0(max(n2,β)) steps in 0(n2) space, where β is the sum of the number of nodes in all maximum weight independent sets. Our algorithms can be directly applied for finding a maximum weight independent set in these graphs in O (n2) steps. Thus, our result is an improvement over the best known result of 0(n2logn) [4, 6] for finding the maximum weight independent set in circular-arc graphs.

Original languageEnglish
Title of host publicationProceedings of the 1991 Symposium on Applied Computing, SOAC 1991
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages465-470
Number of pages6
ISBN (Electronic)0818621362, 9780818621369
DOIs
StatePublished - 1991
Event1991 Symposium on Applied Computing, SOAC 1991 - Kansas City, United States
Duration: Apr 3 1991Apr 5 1991

Publication series

NameProceedings of the 1991 Symposium on Applied Computing, SOAC 1991

Conference

Conference1991 Symposium on Applied Computing, SOAC 1991
Country/TerritoryUnited States
CityKansas City
Period04/3/9104/5/91

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