Ultralytics Refactor https://ultralytics.com/actions

[UltralyticsAssistant]

This Ultralytics PR refactors code to improve performance and readability. 🔄

Key changes include:

• 🚀 Optimized various functions for faster execution.
• 🧩 Simplified complex logic for better understanding and maintenance.
• 🗑️ Removed redundant code to streamline operations.
• 📚 Improved code structure and organization.

These changes aim to enhance the overall quality and efficiency of the code. 🌟

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🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

This update refines several URLs across documentation and tutorials to enhance their link accuracy and consistency.

📊 Key Changes

• Updated Kaggle links in README.md, README.zh-CN.md, and multiple notebooks to point to more precise URLs.
• Adjusted dataset URLs for coco128-seg.yaml and coco128.yaml to correct paths.

🎯 Purpose & Impact

• 🛠️ Improved Link Accuracy: Ensures users are directed to the correct pages, minimizing confusion and troubleshooting.
• 🌐 Enhanced User Experience: Users can now easily locate the right datasets and resources, facilitating smoother workflows and access to materials.

[UltralyticsAssistant]

👋 Hello @UltralyticsAssistant, thank you for submitting an ultralytics/yolov3 🚀 PR! To ensure a seamless integration of your work, please review the following checklist:

• ✅ Define a Purpose: Clearly explain the purpose of your refactoring in your PR description, and link to any relevant issues. Ensure your commit messages are well-crafted and follow the project's conventions.
• ✅ Synchronize with Source: Confirm your PR is synchronized with the ultralytics/yolov3 main branch. If it's behind, update it by clicking the 'Update branch' button or by running git pull and git merge main locally.
• ✅ Ensure CI Checks Pass: Verify all Ultralytics Continuous Integration (CI) checks are passing. Address any failing checks.
• ✅ Update Documentation: Update the relevant documentation for any changes made. This will help others understand and utilize your improvements.
• ✅ Minimize Changes: Limit your changes to only those necessary for refactoring the code. "Perfection is achieved not when there is nothing more to add, but rather when there is nothing more to take away." — Antoine de Saint-Exupéry
• ✅ Sign the CLA: Ensure you have signed our Contributor License Agreement if this is your first Ultralytics PR by writing "I have read the CLA Document and I sign the CLA" in a new message.

For more guidance, please refer to our Contributing Guide. If any aspects of your refactoring result in unexpected issues, feel free to create a minimum reproducible example (MRE) to illustrate the problem.

This is an automated response, but rest assured, an Ultralytics engineer will review your PR soon. Do not hesitate to leave a comment if you have any questions. Thank you for contributing to Ultralytics! 🌟