An Unfair Comparison Between Lemmatization and Stemming: Understanding Their Impact in NLP

📰 Medium · Machine Learning

Learn the difference between lemmatization and stemming in NLP and how to apply them for better text data cleaning

intermediate Published 22 Apr 2026
Action Steps
  1. Apply lemmatization using NLTK library to reduce words to their base form
  2. Use stemming algorithms like Porter Stemmer to reduce words to their root form
  3. Compare the results of lemmatization and stemming on a sample dataset to understand their differences
  4. Implement data cleaning pipelines using techniques like tokenization, stopword removal, and normalization
  5. Evaluate the effect of lemmatization and stemming on model performance using metrics like accuracy and F1-score
Who Needs to Know This

NLP engineers and data scientists can benefit from understanding the impact of lemmatization and stemming on their models' performance

Key Insight

💡 Lemmatization and stemming are two different techniques used for reducing words to their base form, with lemmatization being more accurate but also more computationally expensive

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🤖 Understand the difference between lemmatization and stemming in NLP to improve your text data cleaning 📊
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