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Mastering PyTorch

You're reading from   Mastering PyTorch Create and deploy deep learning models from CNNs to multimodal models, LLMs, and beyond

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Product type Paperback
Published in May 2024
Publisher Packt
ISBN-13 9781801074308
Length 558 pages
Edition 2nd Edition
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Author (1):
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Ashish Ranjan Jha Ashish Ranjan Jha
Author Profile Icon Ashish Ranjan Jha
Ashish Ranjan Jha
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Table of Contents (21) Chapters Close

Preface 1. Overview of Deep Learning Using PyTorch 2. Deep CNN Architectures FREE CHAPTER 3. Combining CNNs and LSTMs 4. Deep Recurrent Model Architectures 5. Advanced Hybrid Models 6. Graph Neural Networks 7. Music and Text Generation with PyTorch 8. Neural Style Transfer 9. Deep Convolutional GANs 10. Image Generation Using Diffusion 11. Deep Reinforcement Learning 12. Model Training Optimizations 13. Operationalizing PyTorch Models into Production 14. PyTorch on Mobile Devices 15. Rapid Prototyping with PyTorch 16. PyTorch and AutoML 17. PyTorch and Explainable AI 18. Recommendation Systems with PyTorch 19. PyTorch and Hugging Face 20. Index

Training RNNs for sentiment analysis

In this section, we will train an RNN model using PyTorch for a text classification task – sentiment analysis. In this task, the model takes in a piece of text – a sequence of words – as input and outputs either 1 (meaning positive sentiment) or 0 (negative sentiment). In order to go from text to 1s and 0s, we will need the help of tokenization and embeddings.

Tokenization is the process of converting words into numerical tokens or integers, as we will see in this exercise. Sentences are then equivalent to an array of numbers, each number in the ordered array representing a word. While tokenization provides us with integer indices for each word, we still want to represent each word as a vector of numbers – as a feature – in the feature space of words. Why? Because the information contained in a word cannot just be represented by a single number. This process of representing words as vectors is called embedding...

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