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ACM Transactions on Algorithms
Article . 2024 . Peer-reviewed
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Article . 2024
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Article . 2024
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Generic Non-recursive Suffix Array Construction

Generic non-recursive suffix array construction
Authors: Jannik Olbrich; Enno Ohlebusch; Thomas Büchler;

Generic Non-recursive Suffix Array Construction

Abstract

The suffix array is arguably one of the most important data structures in sequence analysis and consequently there is a multitude of suffix sorting algorithms. However, to this date the GSACA algorithm introduced in 2015 is the only known non-recursive linear-time suffix array construction algorithm (SACA). Despite its interesting theoretical properties, there has been little effort in improving GSACA ’s non-competitive real-world performance. There is a super-linear algorithm DSH , which relies on the same sorting principle and is faster than DivSufSort , the fastest SACA for over a decade. The purpose of this article is twofold: We analyse the sorting principle used in GSACA and DSH and exploit its properties to give an optimised linear-time algorithm, and we show that it can be very elegantly used to compute both the original extended Burrows-Wheeler transform ( eBWT ) and a bijective version of the Burrows-Wheeler transform ( BBWT ) in linear time. We call the algorithm “generic,” since it can be used to compute the regular suffix array and the variants used for the BBWT and eBWT . Our suffix array construction algorithm is not only significantly faster than GSACA but also outperforms DivSufSort and DSH . Our BBWT -algorithm is faster than or competitive with all other tested BBWT construction implementations on large or repetitive data, and our eBWT -algorithm is faster than all other programs on data that is not extremely repetitive.

Country
Germany
Related Organizations
Keywords

String algorithms, Data structures, Bijective Burrows-Wheeler transform, suffix array, string algorithms, Algorithms on strings, bijective Burrows-Wheeler transform, Suffix sorting, Suffix array, suffix sorting, info:eu-repo/classification/ddc/530, Coding and information theory (compaction, compression, models of communication, encoding schemes, etc.) (aspects in computer science), Searching and sorting

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
6
Top 10%
Average
Top 10%
Green
hybrid