Smaller kernels for hitting set problems of constant arity

Naomi Nishimura, Prabhakar Ragde, Dimitrios M. Thilikos

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

We demonstrate a kernel of size O(k2) for 3-HITTING SET (HITTING SET when all subsets in the collection to be hit are of size at most three), giving a partial answer to an open question of Niedermeier by improving on the O(k3) kernel of Niedermeier and Rossmanith. Our technique uses the Nemhauser-Trotter linear-size kernel for VERTEX COVER, and generalizes to demonstrating a kernel of size O(kr-1) for r-HITTING SET (for fixed r).

Original languageEnglish (US)
Title of host publicationLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
EditorsRod Downey, Michael Fellows, Frank Dehne
PublisherSpringer Verlag
Pages121-126
Number of pages6
ISBN (Print)9783540230717
DOIs
StatePublished - 2004

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume3162
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Keywords

  • Fixed parameter algorithms
  • Hitting set
  • Kernels

ASJC Scopus subject areas

  • Theoretical Computer Science
  • General Computer Science

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