Ranking bracelets in polynomial time

Duncan Adamson, Vladimir V. Gusev, Igor Potapov, Argyrios Deligkas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

The main result of the paper is the first polynomial-time algorithm for ranking bracelets. The time-complexity of the algorithm is O(k2 · n4), where k is the size of the alphabet and n is the length of the considered bracelets. The key part of the algorithm is to compute the rank of any word with respect to the set of bracelets by finding three other ranks: the rank over all necklaces, the rank over palindromic necklaces, and the rank over enclosing apalindromic necklaces. The last two concepts are introduced in this paper. These ranks are key components to our algorithm in order to decompose the problem into parts. Additionally, this ranking procedure is used to build a polynomial-time unranking algorithm.

Original languageEnglish
Title of host publication32nd Annual Symposium on Combinatorial Pattern Matching, CPM 2021
EditorsPawel Gawrychowski, Tatiana Starikovskaya
PublisherSchloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing
ISBN (Electronic)9783959771863
DOIs
Publication statusPublished - 1 Jul 2021
Event32nd Annual Symposium on Combinatorial Pattern Matching, CPM 2021 - Wroclaw, Poland
Duration: 5 Jul 20217 Jul 2021

Publication series

NameLeibniz International Proceedings in Informatics, LIPIcs
Volume191
ISSN (Print)1868-8969

Conference

Conference32nd Annual Symposium on Combinatorial Pattern Matching, CPM 2021
Country/TerritoryPoland
CityWroclaw
Period5/07/217/07/21

Keywords

  • Bracelets
  • Necklaces
  • Ranking

Fingerprint

Dive into the research topics of 'Ranking bracelets in polynomial time'. Together they form a unique fingerprint.

Cite this