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An Extension of the String-to-String Correction Problem

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Wagner, Robert A., Lowrance, Roy·1975·Journal of the ACM

Abstract

The string-to-string correction problem asks for a sequence S of "edit operations" of minimal cost such that ~(A) = B, for given strings A and B. The edit operations previously investigated allow changing one symbol of a string into another single symbol, deleting one symbol from a string, or inserting a single symbol into a string.This paper extends the set of allowable edit operations to include the operation of interchanging the positions of two adjacent characters Under certain restrictions on edit-operation costs, it is shown that the extended problem can still be solved in time proportional to the product of the lengths of the given strings.

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Metadata

Authors
Wagner, R. A., & Lowrance, R.
Venue
Journal of the ACM
Published
1975-04
Volume
22
Issue
2
Pages
177-183
ISSN
  • 0004-5411 (ISSN-L)
  • 1557-735X
OpenAlex
W2039262760
Cited by
313
References
0
FWCI
3.16
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: An Extension of the String-to-String Correction Problem. https://app.cochat.ai/papers/10.1145/321879.321880
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Wagner, R. A., & Lowrance, R. (1975). An Extension of the String-to-String Correction Problem. Journal of the ACM. https://doi.org/10.1145/321879.321880

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.