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Finding approximate palindromes in strings | | A. H. L. Porto
; V. C. Barbosa
; | | Date: |
23 Sep 2003 | | Journal: | Pattern Recognition 35 (2002), 2581-2591 | | Subject: | Data Structures and Algorithms ACM-class: F.2.2; I.2.8 | cs.DS | | Abstract: | We introduce a novel definition of approximate palindromes in strings, and provide an algorithm to find all maximal approximate palindromes in a string with up to $k$ errors. Our definition is based on the usual edit operations of approximate pattern matching, and the algorithm we give, for a string of size $n$ on a fixed alphabet, runs in $O(k^2 n)$ time. We also discuss two implementation-related improvements to the algorithm, and demonstrate their efficacy in practice by means of both experiments and an average-case analysis. | | Source: | arXiv, cs.DS/0309043 | | Services: | Forum | Review | PDF | Favorites | |
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