juniorComputer Vision
What is dataset splitting in machine learning?
Updated May 15, 2026
Short answer
Dataset splitting divides data into training, validation, and test sets.
Deep explanation
Training set is used to learn, validation for tuning, and test for final evaluation.
Real-world example
Ensuring unbiased evaluation of medical imaging models.
Common mistakes
- Leaking test data into training set.
Follow-up questions
- Why use validation set?
- What is data leakage?