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Deep Learning with Theano

You're reading from   Deep Learning with Theano Perform large-scale numerical and scientific computations efficiently

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Product type Paperback
Published in Jul 2017
Publisher Packt
ISBN-13 9781786465825
Length 300 pages
Edition 1st Edition
Tools
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Author (1):
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Christopher Bourez Christopher Bourez
Author Profile Icon Christopher Bourez
Christopher Bourez
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Table of Contents (15) Chapters Close

Preface 1. Theano Basics FREE CHAPTER 2. Classifying Handwritten Digits with a Feedforward Network 3. Encoding Word into Vector 4. Generating Text with a Recurrent Neural Net 5. Analyzing Sentiment with a Bidirectional LSTM 6. Locating with Spatial Transformer Networks 7. Classifying Images with Residual Networks 8. Translating and Explaining with Encoding – decoding Networks 9. Selecting Relevant Inputs or Memories with the Mechanism of Attention 10. Predicting Times Sequences with Advanced RNN 11. Learning from the Environment with Reinforcement 12. Learning Features with Unsupervised Generative Networks 13. Extending Deep Learning with Theano Index

Chapter 6. Locating with Spatial Transformer Networks

In this chapter, the NLP field is left to come back to images, and get an example of application of recurrent neural networks to images. In Chapter 2, Classifying Handwritten Digits with a Feedforward Network we addressed the case of image classification, consisting of predicting the class of an image. Here, we'll address object localization, a common task in computer vision as well, consisting of predicting the bounding box of an object in the image.

While Chapter 2, Classifying Handwritten Digits with a Feedforward Network solved the classification task with neural nets built with linear layers, convolutions, and non-linarites, the spatial transformer is a new module built on very specific equations dedicated to the localization task.

In order to locate multiple objects in the image, spatial transformers are composed with recurrent networks. This chapter takes the opportunity to show how to use prebuilt recurrent networks...

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