Approximate String Matching with SIMD

Fernando J. Fiori, Waltteri Pakalen, Jorma Tarhio

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)


We consider the k mismatches version of approximate string matching for a single pattern and multiple patterns. For these problems, we present new algorithms utilizing the single instruction multiple data (SIMD) instruction set extensions for patterns of up to 32 characters. We apply SIMD computation in three ways: in counting of mismatches, in comparison of substrings and in calculation of fingerprints. We show the competitiveness of the new algorithms by practical experiments.
Original languageEnglish
Article numberbxaa193
JournalThe Computer Journal
Publication statusPublished - 23 Feb 2021
MoE publication typeA1 Journal article-refereed


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