kylebgorman
/ wagnerfischer.py
Created
July 14, 2011 04:41
Python implementation of the Wagner & Fischer dynamic programming approach to computing Levenshtein distance, with support for thresholding, arbitrary weights, and traceback to get individual insertion/deletion/substitution counts.
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| #!/usr/bin/env python | |
| # wagnerfischer.py: Dynamic programming Levensthein distance function | |
| # Kyle Gorman <[email protected]> | |
| # | |
| # Based on: | |
| # | |
| # Robert A. Wagner and Michael J. Fischer (1974). The string-to-string | |
| # correction problem. Journal of the ACM 21(1):168-173. | |
| # | |
| # The thresholding function was inspired by BSD-licensed code from |