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Data masking with PCA

PCA for pseudo-anonymization is widely used among companies. You can find multiple Kaggle challenges and datasets where the data is provided after PCA transformations.

A differentially private version of PCA is also included in the diffprivlib in the models module. It's based on the PCA class from sklearn but including optional arguments for epsilon and min and max bounds. Just as we have seen in the previous chapter.

In this exercise, you will apply data masking with PCA on the NBA Salaries dataset, already loaded as players.

This exercise is part of the course

Data Privacy and Anonymization in Python

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Exercise instructions

  • Import PCA from sklearn.
  • Initialize PCA() with the number of components to be the same as the number of columns.
  • Apply pca to players.
  • See the resulting dataset.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

# Import PCA from Scikit-learn
____

# Initialize PCA with number of components to be the same as the number of columns
pca = ____

# Apply PCA to the data
players_pca = ____

# Print the resulting dataset
print(pd.DataFrame(players_pca))
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