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a library for doing approximate and phonetic matching of strings.

Project description

Jellyfish is a python library for doing approximate and phonetic matching of strings.

jellyfish is a project of Sunlight Labs (c) 2010. All code is released under a BSD-style license, see LICENSE for details.

Written by Michael Stephens <mstephens@sunlightfoundation.com> and James Turk <jturk@sunlightfoundation.com>.

Source is available at http://github.com/sunlightlabs/jellyfish.

Included Algorithms

String comparison:

  • Levenshtein Distance
  • Damerau-Levenshtein Distance
  • Jaro Distance
  • Jaro-Winkler Distance
  • Match Rating Approach Comparison
  • Hamming Distance

Phonetic encoding:

  • American Soundex
  • Metaphone
  • NYSIIS (New York State Identification and Intelligence System)
  • Match Rating Codex

Example Usage

>>> import jellyfish
>>> jellyfish.levenshtein_distance('jellyfish', 'smellyfish')
2
>>> jellyfish.jaro_distance('jellyfish', 'smellyfish')
0.89629629629629637
>>> jellyfish.damerau_levenshtein_distance('jellyfish', 'jellyfihs')
1
>>> jellyfish.metaphone('Jellyfish')
'JLFX'
>>> jellyfish.soundex('Jellyfish')
'J412'
>>> jellyfish.nysiis('Jellyfish')
'JALYF'
>>> jellyfish.match_rating_codex('Jellyfish')
'JLLFSH'

Project details


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