A Separation Between Run-Length SLPs and LZ77

November 20, 2017 Β· Declared Dead Β· πŸ› arXiv.org

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Authors Philip Bille, Travis Gagie, Inge Li GΓΈrtz, Nicola Prezza arXiv ID 1711.07270 Category cs.DS: Data Structures & Algorithms Citations 5 Venue arXiv.org Last Checked 4 months ago
Abstract
In this paper we give an infinite family of strings for which the length of the Lempel-Ziv'77 parse is a factor $Ξ©(\log n/\log\log n)$ smaller than the smallest run-length grammar.
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