42. Activation Functions, Loss, and Gradient Descent (Plain English)
Activation, loss, gradient descent — teen pillars. ReLU, MSE toy, downhill walk. Learning rate pan clear.
What you will learn in this chapter
- Activation functions simply
- What loss measures
- Gradient descent intuition
- Learning rate simply
- Practice before backprop
Fictional data
Blinkit / Amazon Now / Mauli Dairy figures in this chapter are fictional sample data for learning only. They do not show real company numbers. People names are for practice; e-mails use example.com.
Concepts in this chapter
- 42.1Activation Functions Simply
- 42.2What Is Loss
- 42.3Gradient Descent Intuition
- 42.4Learning Rate Simply
- 42.5Practice, Tip and Close
The chapter recap is at the end of the last concept page.