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Linear Approximate Pattern Matching Algorithm by Al-okaily, Anas; Tbakhi, Abdelghani is a scholarly article available to read on EtoBox.

What is Linear Approximate Pattern Matching Algorithm about?

Pattern matching is a fundamental process in almost every scientific domain. The problem involves finding the positions of a given pattern (usually of short length) in a reference stream of data (usually of large length). The matching can be an exact or as an approximate (inexact). Exact matching is to search for the pattern without allowing for mismatches (or insertions and deletions) of one or more characters in the pattern), while approximate matching is the opposite. For exact matching, several data structures that can be built in linear time and space are used and in practice nowadays. For approximate matching, the solutions proposed to solve this matching are non-linear and currently impractical. In this paper, we designed and implemented a structure that can be built in linear time and space ($O(n)$) and solves the approximate matching problem in $O(m + \frac {log_2n {(log_\Sigma n)} ^{k+1}}{k!} + occ)$ search costs, where $m$ is the length of the pattern, $n$ is the length of the reference, and $k$ is the number of tolerated mismatches (and insertion and deletions).

Author

Al-okaily, Anas; Tbakhi, Abdelghani

Published

2021

Language

EN