🎨 GANs Introduction

Explore Generative Adversarial Networks and adversarial learning

Your Progress

0 / 5 completed
←
Previous Module
Style Transfer Playground

What are GANs?

🎯 Generative Adversarial Networks

GANs are a revolutionary deep learning architecture introduced by Ian Goodfellow in 2014. They consist of two neural networksβ€”a Generator and a Discriminatorβ€”competing against each other in a game-theoretic framework.

πŸ’‘
The Adversarial Game

The generator tries to create fake data that looks real, while the discriminator tries to distinguish fake from real. Through this competition, both networks improve.

🎨

Generator (G)

Creates fake samples from random noise, trying to fool the discriminator.

  • β€’Input: Random noise vector (latent space)
  • β€’Output: Generated data (images, text, etc.)
  • β€’Goal: Maximize discriminator error
πŸ”

Discriminator (D)

Classifies samples as real or fake, acting as a critic for the generator.

  • β€’Input: Real or generated data
  • β€’Output: Probability (real vs fake)
  • β€’Goal: Correctly classify all samples

πŸš€ Why GANs Matter

πŸ–ΌοΈ
Image Generation

Create photorealistic images, faces, artwork, and deepfakes

🎭
Style Transfer

Transform images between different artistic styles

πŸ”„
Data Augmentation

Generate synthetic training data for ML models

πŸ“ˆ Historical Impact

Since 2014, GANs have revolutionized generative AI. They've enabled applications from creating realistic human faces (StyleGAN) to generating high-resolution images (BigGAN) and even artistic creations that sell for thousands of dollars.

2014
Original GAN
2018
StyleGAN
Now
Stable Diffusion