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Data Augmentation with Python

You're reading from   Data Augmentation with Python Enhance deep learning accuracy with data augmentation methods for image, text, audio, and tabular data

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Product type Paperback
Published in Apr 2023
Publisher Packt
ISBN-13 9781803246451
Length 394 pages
Edition 1st Edition
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Author (1):
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Duc Haba Duc Haba
Author Profile Icon Duc Haba
Duc Haba
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Toc

Table of Contents (17) Chapters Close

Preface 1. Part 1: Data Augmentation
2. Chapter 1: Data Augmentation Made Easy FREE CHAPTER 3. Chapter 2: Biases in Data Augmentation 4. Part 2: Image Augmentation
5. Chapter 3: Image Augmentation for Classification 6. Chapter 4: Image Augmentation for Segmentation 7. Part 3: Text Augmentation
8. Chapter 5: Text Augmentation 9. Chapter 6: Text Augmentation with Machine Learning 10. Part 4: Audio Data Augmentation
11. Chapter 7: Audio Data Augmentation 12. Chapter 8: Audio Data Augmentation with Spectrogram 13. Part 5: Tabular Data Augmentation
14. Chapter 9: Tabular Data Augmentation 15. Index 16. Other Books You May Enjoy

Word augmenting

Word augmentations carry the same bias and safe level warning as character augmentations. Over half of these augmentation methods inject errors into the text, but other functions generate new text using synonyms or a pretrained AI model. The standard word augmentation functions are listed as follows:

  • The Misspell augmentation function uses a predefined dictionary to simulate spelling mistakes. It is based on the scholarly paper Text Data Augmentation Made Simple By Leveraging NLP Cloud APIs by Claude Coulombe, which was published in 2018.
  • The Split augmentation function splits words into two tokens randomly.
  • The Random word augmentation method applies random behavior to the text with four parameters: substitute, swap, delete, and crop. It is based on two scholarly papers: Synthetic and Natural Noise Both Break Neural Machine Translation by Yonatan Belinkov and Yonatan Bisk, published in 2018, and Data Augmentation via Dependency Tree Morphing for Low...
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