Lempel-Ziv factorization revisited

  • Authors:
  • Enno Ohlebusch;Simon Gog

  • Affiliations:
  • Institute of Theoretical Computer Science, University of Ulm, Ulm;Institute of Theoretical Computer Science, University of Ulm, Ulm

  • Venue:
  • CPM'11 Proceedings of the 22nd annual conference on Combinatorial pattern matching
  • Year:
  • 2011

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Abstract

For 30 years the Lempel-Ziv factorization of a string has played an important role in data compression, and more recently it was used as the basis of linear time algorithms for the detection of all maximal repetitions (runs) in a string. In this paper, we present two new linear time algorithms: the first one is the fastest and the second is the most space-efficient among all LZ-factorization algorithms known so far.