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Consensus Strings with Small Maximum Distance and Small Distance Sum

Authors Laurent Bulteau, Markus L. Schmid

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Author Details

Laurent Bulteau
  • Université Paris-Est, LIGM (UMR 8049), CNRS, ENPC, ESIEE Paris, UPEM, F-77454, Marne-la-Vallée, France
Markus L. Schmid
  • Fachbereich 4 - Abteilung Informatikwissenschaften, Universität Trier, 54286 Trier, Germany

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Laurent Bulteau and Markus L. Schmid. Consensus Strings with Small Maximum Distance and Small Distance Sum. In 43rd International Symposium on Mathematical Foundations of Computer Science (MFCS 2018). Leibniz International Proceedings in Informatics (LIPIcs), Volume 117, pp. 1:1-1:15, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
https://doi.org/10.4230/LIPIcs.MFCS.2018.1

Abstract

The parameterised complexity of consensus string problems (Closest String, Closest Substring, Closest String with Outliers) is investigated in a more general setting, i. e., with a bound on the maximum Hamming distance and a bound on the sum of Hamming distances between solution and input strings. We completely settle the parameterised complexity of these generalised variants of Closest String and Closest Substring, and partly for Closest String with Outliers; in addition, we answer some open questions from the literature regarding the classical problem variants with only one distance bound. Finally, we investigate the question of polynomial kernels and respective lower bounds.

Subject Classification

ACM Subject Classification
  • Theory of computation → Problems, reductions and completeness
  • Theory of computation → Fixed parameter tractability
  • Theory of computation → W hierarchy
Keywords
  • Consensus String Problems
  • Closest String
  • Closest Substring
  • Parameterised Complexity
  • Kernelisation

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