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NLP Academy · Lesson

Lemmatization: Smarter Base Forms

Reduce words to real dictionary forms.

A Smarter Reducer

Stemming chops blindly, but lemmatization reduces a word to its real dictionary base form, called the lemma. The result is always a proper word. 📖

Lemma vs Stem

Stemming turns studies into studi, but lemmatization returns the clean lemma study. That tidy, valid output is the big win of lemmatization.

All lessons in this course

  1. Why Case and Spacing Matter
  2. Lowercasing and Stripping Whitespace
  3. Stemming: Chopping to the Root
  4. Lemmatization: Smarter Base Forms
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