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Python Machine Learning By Example

You're reading from   Python Machine Learning By Example Unlock machine learning best practices with real-world use cases

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Product type Paperback
Published in Jul 2024
Publisher Packt
ISBN-13 9781835085622
Length 518 pages
Edition 4th Edition
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Author (1):
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Yuxi (Hayden) Liu Yuxi (Hayden) Liu
Author Profile Icon Yuxi (Hayden) Liu
Yuxi (Hayden) Liu
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Table of Contents (18) Chapters Close

Preface 1. Getting Started with Machine Learning and Python 2. Building a Movie Recommendation Engine with NaĂ¯ve Bayes FREE CHAPTER 3. Predicting Online Ad Click-Through with Tree-Based Algorithms 4. Predicting Online Ad Click-Through with Logistic Regression 5. Predicting Stock Prices with Regression Algorithms 6. Predicting Stock Prices with Artificial Neural Networks 7. Mining the 20 Newsgroups Dataset with Text Analysis Techniques 8. Discovering Underlying Topics in the Newsgroups Dataset with Clustering and Topic Modeling 9. Recognizing Faces with Support Vector Machine 10. Machine Learning Best Practices 11. Categorizing Images of Clothing with Convolutional Neural Networks 12. Making Predictions with Sequences Using Recurrent Neural Networks 13. Advancing Language Understanding and Generation with the Transformer Models 14. Building an Image Search Engine Using CLIP: a Multimodal Approach 15. Making Decisions in Complex Environments with Reinforcement Learning 16. Other Books You May Enjoy
17. Index

Finding images with words

In this section, we will first train a CLIP model that we implemented in the previous sections. We will then use the trained model to retrieve images given a query. Finally, we will use a pre-trained CLIP model to perform image searches and zero-shot predictions.

Training a CLIP model

Let’s train a CLIP model in the following steps:

  1. First, we create a CLIP model and move it to system device (either a GPU or CPU):
    >>> device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
    >>> model = CLIPModel().to(device)
    
  2. Next, we initialize an Adam optimizer to train the model and set the learning rate:
    >>> optimizer = torch.optim.Adam(model.parameters(), lr=0.001)
    
  3. As we did in previous chapters, we define the following training function to update the model:
    >>> def train(model, dataloader, optimizer):
            model.train()...
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