mapping English words to their singular forms

Question

Examples: mapping a plural noun to its singular form: children --> child, boxes ---> box mapping comparative and superlative of adjectives and adverbs to their basic form mapping verb ....

I once found an open source resource to achieve it. As I remember, it is a datasheet?/spreadsheet?/database? of the mapping. Does anyone know the open source resource, or any alternative/better solution? I'm coding in java.

score 2 · Accepted Answer · edited May 23 '17 at 12:27

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That is called stemming and Lucene (specifically snowball contrib) can do that.

There is a number of different stemming algorithms.

edited May 23 '17 at 12:27

Community

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answered Apr 07 '12 at 01:36

om-nom-nom

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Actually the process is called lemmatization. See answer [here](http://stackoverflow.com/a/4025259/547040). – Khairul Apr 07 '12 at 10:32
@Khairul Interesting. [Wikipedia says](http://en.wikipedia.org/wiki/Stemming#Lemmatisation_algorithms) that lemmatisation is the subset of stemming. – om-nom-nom Apr 07 '12 at 13:26

score 0 · Answer 2 · answered Apr 07 '12 at 01:46

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There was a paper in the '80s about the UNIX spell checker which explained how stemming worked. This Wikipedia UNIX Spell article gives a link to the paper, and also identifies some alternatives.

answered Apr 07 '12 at 01:46

gbulmer

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mapping English words to their singular forms

2 Answers2