Compact Data Structures for Shortest Unique Substring Queries

Takuya Mieno, Dominik Köppl, Yuto Nakashima, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda

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

1 Citation (Scopus)

Abstract

Given a string T of length n, a substring of T is called a shortest unique substring (SUS) for an interval [s, t] if (a) u occurs exactly once in T, (b) u contains the interval [s, t] (i.e.), and (c) every substring v of T with containing [s, t] occurs at least twice in T. Given a query interval, the interval SUS problem is to output all the SUSs for the interval [s, t]. In this article, we propose a bits data structure answering an interval SUS query in output-sensitive time, where is the number of returned SUSs. Additionally, we focus on the point SUS problem, which is the interval SUS problem for. Here, we propose a bits data structure answering a point SUS query in the same output-sensitive time.

Original languageEnglish
Title of host publicationString Processing and Information Retrieval - 26th International Symposium, SPIRE 2019, Proceedings
EditorsNieves R. Brisaboa, Simon J. Puglisi
PublisherSpringer
Pages107-123
Number of pages17
ISBN (Print)9783030326852
DOIs
Publication statusPublished - 2019
Event26th International Symposium on String Processing and Information Retrieval, SPIRE 2019 - Segovia, Spain
Duration: Oct 7 2019Oct 9 2019

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume11811 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference26th International Symposium on String Processing and Information Retrieval, SPIRE 2019
CountrySpain
CitySegovia
Period10/7/1910/9/19

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)

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