Book Image

Generative AI with Python and TensorFlow 2

By : Joseph Babcock, Raghav Bali
4 (1)
Book Image

Generative AI with Python and TensorFlow 2

4 (1)
By: Joseph Babcock, Raghav Bali

Overview of this book

Machines are excelling at creative human skills such as painting, writing, and composing music. Could you be more creative than generative AI? In this book, you’ll explore the evolution of generative models, from restricted Boltzmann machines and deep belief networks to VAEs and GANs. You’ll learn how to implement models yourself in TensorFlow and get to grips with the latest research on deep neural networks. There’s been an explosion in potential use cases for generative models. You’ll look at Open AI’s news generator, deepfakes, and training deep learning agents to navigate a simulated environment. Recreate the code that’s under the hood and uncover surprising links between text, image, and music generation.
Table of Contents (16 chapters)
14
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15
Index

Summary

In this chapter, you were introduced to a new class of generative models called Generative Adversarial Networks. Inspired by concepts of game theory, GANs present an implicit method of modeling the data generation probability density. We started the chapter by first placing GANs in the overall taxonomy of generative models and comparing how these are different from some of the other methods we have covered in earlier chapters. Then we moved onto understanding the finer details of how GANs actually work by covering the value function for the minimax game, as well as a few variants like the non-saturating generator loss and the maximum likelihood game. We developed a multi-layer-perceptron-based vanilla GAN to generate MNIST digits using TensorFlow Keras APIs.

In the next section, we touched upon a few improved GANs in the form of Deep Convolutional GANs, Conditional GANs, and finally, Wasserstein GANs. We not only explored major contributions and enhancements, but also...