Porter Stemming Algorithm
This is the Porter stemming algorithm, ported to Python from the version coded up in ANSI C by the author. It may be be regarded as canonical, in that it follows the algorithm presented in
Porter, 1980, An algorithm for suffix stripping, Program, Vol. 14, no. 3, pp 130-137,
only differing from it at the points made --DEPARTURE-- below.
See also https://tartarus.org/martin/PorterStemmer/
The algorithm as described in the paper could be exactly replicated by adjusting the points of DEPARTURE, but this is barely necessary, because (a) the points of DEPARTURE are definitely improvements, and (b) no encoding of the Porter stemmer I have seen is anything like as exact as this version, even with the points of DEPARTURE!
Release 1: January 2001
| Unknown Field: copyright | |
| Copyright 2001 by Vivake Gupta <v@nano.com>. | |
| Unknown Field: license | |
| Public Domain ("can be used free of charge for any purpose"). |
| Class | ​Porter​Stemmer |
No class docstring; 0/4 instance variable, 16/16 methods documented |