An English (Porter2) stemming implementation in Elixir.
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config Initial commit Jul 17, 2016
lib More micro performance optimisations Jul 28, 2016
test Fixed the last edge case, 100% compatibility achieved! Jul 19, 2016
.gitignore Added official `diffs.txt` for testing Jul 19, 2016
mix.exs Added auto git pushing upon releases Jul 29, 2017

Stemmer Travis Coverage

An English (Porter2) stemming implementation in Elixir.

In linguistic morphology and information retrieval, stemming is the process of reducing inflected (or sometimes derived) words to their word stem, base or root form—generally a written word form. The stem need not be identical to the morphological root of the word; it is usually sufficient that related words map to the same stem, even if this stem is not in itself a valid root. - Wikipedia


The Stemmer.stem/1 function supports stemming a single word (String), a sentence (String) or a list of single words (List of Strings).

Stemmer.stem("capabilities")                    # => "capabl"
Stemmer.stem("extraordinary capabilities")      # => "extraordinari capabl"
Stemmer.stem(["extraordinary", "capabilities"]) # => ["extraordinari", "capabl"]


Stemmer is 100% compatible with the official Porter2 implementation, it is tested against the official diffs.txt which contains more than 29000 words.

Naive Bayes

Stemmer was built to support the Simple Bayes library. ❤️


Licensed under MIT.