Implementing Sigmoid and Its Derivative from Scratch

In this video, we discuss and implement Sigmoid activation function and its derivative using PyTorch.

Codebase: https://github.com/oniani/ai
GitHub: https://github.com/oniani
Web: https://oniani.ai

#ai #softwareengineering #programming #stylepoint #sigmoid

Chapters
0:00 - Intro
0:36 - Discussing Sigmoid
4:59 - Numerical stability
5:37 - Computing the derivative of Sigmoid
8:21 - The API of the first approach
8:45 - Implementing `forward` method
11:23 - Implementing `backward` method
12:01 - Using `gradcheck` for testing
12:21 - The alternative implementation
14:35 - Outro