Data & Features

Data Leakage

When information from outside the training data is used to create the model, leading to overly optimistic performance estimates.

  • Overfitting: Explore how Overfitting relates to Data Leakage
  • Validation: Explore how Validation relates to Data Leakage
  • Test Set: Explore how Test Set relates to Data Leakage

Why It Matters

Understanding Data Leakage is crucial for anyone working with data & features. This concept helps build a foundation for more advanced topics in AI and machine learning.

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This term is part of the comprehensive AI/ML glossary. Explore related terms to deepen your understanding of this interconnected field.

Tags

data-features overfitting validation test-set

Related Terms

Added: November 18, 2025