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TF-IDF Vectorization

TF-IDF Vectorization

Machine learning algorithms cannot process text directly. Therefore, textual information must first be converted into numerical values.

TF-IDF (Term Frequency-Inverse Document Frequency) is a feature extraction technique that measures the importance of words within a collection of documents.

Instead of simply counting word occurrences, TF-IDF gives higher importance to words that are unique and lower importance to commonly occurring words.

Some benefits of TF-IDF include:

  • Converts text into numerical features.
  • Highlights important keywords.
  • Reduces the influence of common words.
  • Improves recommendation accuracy.

TF-IDF is one of the most widely used feature extraction techniques for text-based machine learning projects.