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Computation of the suffix array, Burrows-Wheeler transform and FM-index in V-order
Journal article   Peer reviewed

Computation of the suffix array, Burrows-Wheeler transform and FM-index in V-order

J.W. Daykin, N. Mhaskar and W.F. Smyth
Theoretical Computer Science, Vol.880, pp.82-96
2021
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Abstract

V-order is a total order on strings that determines an instance of Unique Maximal Factorization Families (UMFFs), a generalization of Lyndon words. The fundamental V-comparison of strings can be done in linear time and constant space. V-order has been proposed as an alternative to lexicographic order (lexorder) in the computation of suffix arrays and in the suffix-sorting induced by the Burrows-Wheeler transform (BWT). In line with the recent interest in the connection between suffix arrays and Lyndon factorization, in this paper we obtain similar results for the V-order factorization. Indeed, we show that the results describing the connection between suffix arrays and Lyndon factorization are matched by analogous V-order processing. We also describe a methodology for efficiently computing the FM-Index in V-order, as well as V-order substring pattern matching using backward search.

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Citation topics
4 Electrical Engineering, Electronics & Computer Science
4.182 Data Structures, Algorithms & Complexity
4.182.1103 Efficient Algorithms
Web Of Science research areas
Computer Science, Theory & Methods
ESI research areas
Computer Science
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