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Hands-On Neural Networks with Keras

You're reading from   Hands-On Neural Networks with Keras Design and create neural networks using deep learning and artificial intelligence principles

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Product type Paperback
Published in Mar 2019
Publisher Packt
ISBN-13 9781789536089
Length 462 pages
Edition 1st Edition
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Author (1):
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Niloy Purkait Niloy Purkait
Author Profile Icon Niloy Purkait
Niloy Purkait
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Table of Contents (16) Chapters Close

Preface 1. Section 1: Fundamentals of Neural Networks FREE CHAPTER
2. Overview of Neural Networks 3. A Deeper Dive into Neural Networks 4. Signal Processing - Data Analysis with Neural Networks 5. Section 2: Advanced Neural Network Architectures
6. Convolutional Neural Networks 7. Recurrent Neural Networks 8. Long Short-Term Memory Networks 9. Reinforcement Learning with Deep Q-Networks 10. Section 3: Hybrid Model Architecture
11. Autoencoders 12. Generative Networks 13. Section 4: Road Ahead
14. Contemplating Present and Future Developments 15. Other Books You May Enjoy

Using the pretrained model for prediction

By the way, you may actually run an inference on a given image using the ResNet50 architecture on pretrained ImageNet weights, as we have initialized here. You can do this by first preprocessing the desired image on which you want to run inference into the appropriate four-dimensional tensor format, as shown here. The same of course applies for any dataset of images you may have, as long as they are resized to the appropriate format:

The preceding code reshapes one of our leopard images into a 4D tensor by expanding its dimension along the 0 axis, then feeds the tensor to our initialized ResNet50 model to get a class probability prediction. We then proceed to decode the prediction class into a human-readable output. For fun, we also defined the labels variable, which includes all the possible labels our network predicted for this image...

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