CS5720 - Week 12
Slide 228 of 240

Regularization Techniques Review

Why Regularization Matters

Regularization prevents overfitting by constraining model complexity, helping networks generalize better to unseen data.
The Overfitting Problem:

• Models memorize training data instead of learning patterns
• High training accuracy but poor test performance
• Complex models are especially prone to overfitting
• Regularization provides the solution
🎯 Benefits of Regularization
  • Better generalization to test data
  • Reduced variance in model predictions
  • More stable training process
  • Improved model robustness

Key Regularization Techniques

🎲 Dropout
Randomly sets neurons to zero during training to prevent co-adaptation
⚖️ Weight Decay (L2)
Adds penalty term proportional to squared weights to the loss function
📊 Batch Normalization
Normalizes layer inputs to reduce internal covariate shift
Early Stopping
Stops training when validation performance stops improving
🔄 Data Augmentation
Artificially increases dataset size with transformed versions
🎯 Label Smoothing
Softens hard target labels to prevent overconfident predictions

Regularization Method Comparison

🎲
Dropout
Best for: Fully connected layers, preventing co-adaptation
📊
Batch Normalization
Best for: Deep networks, faster training, modern standard
⚖️
Weight Decay
Best for: Simple models, combined with other techniques
Early Stopping
Best for: All models, computational efficiency
Click on any technique or method to explore detailed implementations!
Prepared by Dr. Gorkem Kar