A Separation Between Run-Length SLPs and LZ77
November 20, 2017 Β· Declared Dead Β· π 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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