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Hands-On Generative Adversarial Networks with Keras

You're reading from   Hands-On Generative Adversarial Networks with Keras Your guide to implementing next-generation generative adversarial networks

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Product type Paperback
Published in May 2019
Publisher Packt
ISBN-13 9781789538205
Length 272 pages
Edition 1st Edition
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Author (1):
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Rafael Valle Rafael Valle
Author Profile Icon Rafael Valle
Rafael Valle
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Table of Contents (14) Chapters Close

Preface 1. Section 1: Introduction and Environment Setup
2. Deep Learning Basics and Environment Setup FREE CHAPTER 3. Introduction to Generative Models 4. Section 2: Training GANs
5. Implementing Your First GAN 6. Evaluating Your First GAN 7. Improving Your First GAN 8. Section 3: Application of GANs in Computer Vision, Natural Language Processing, and Audio
9. Progressive Growing of GANs 10. Generation of Discrete Sequences Using GANs 11. Text-to-Image Synthesis with GANs 12. TequilaGAN - Identifying GAN Samples 13. Whats next in GANs

Improving the baseline model

In this example, we improve the baseline model without doing any modifications to the architecture. The authors propose changing the optimization problem such that the Discriminator also has access to mismatched pairs of text embeddings and images.

This approach is called the Matching-Aware Discriminator and is designed to separate the error sources in this task. During training, the discriminator has access to real images with proper text and synthetic images with arbitrary text. In this context, the discriminator implicitly has two sources of error: fake images that look real but do not match the text description, and unrealistic images for any text.

In this context, the authors explicitly provide the discriminator with pairs of real images and unmatched texts, and empirically find that this helps during training. We'll provide a slice of the...

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