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Data Processing with Optimus

You're reading from   Data Processing with Optimus Supercharge big data preparation tasks for analytics and machine learning with Optimus using Dask and PySpark

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Product type Paperback
Published in Sep 2021
Publisher Packt
ISBN-13 9781801079563
Length 300 pages
Edition 1st Edition
Languages
Concepts
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Authors (2):
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Dr. Argenis Leon Dr. Argenis Leon
Author Profile Icon Dr. Argenis Leon
Dr. Argenis Leon
Luis Aguirre Contreras Luis Aguirre Contreras
Author Profile Icon Luis Aguirre Contreras
Luis Aguirre Contreras
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Toc

Table of Contents (16) Chapters Close

Preface 1. Section 1: Getting Started with Optimus
2. Chapter 1: Hi Optimus! FREE CHAPTER 3. Chapter 2: Data Loading, Saving, and File Formats 4. Section 2: Optimus – Transform and Rollout
5. Chapter 3: Data Wrangling 6. Chapter 4: Combining, Reshaping, and Aggregating Data 7. Chapter 5: Data Visualization and Profiling 8. Chapter 6: String Clustering 9. Chapter 7: Feature Engineering 10. Section 3: Advanced Features of Optimus
11. Chapter 8: Machine Learning 12. Chapter 9: Natural Language Processing 13. Chapter 10: Hacking Optimus 14. Chapter 11: Optimus as a Web Service 15. Other Books You May Enjoy

Limitations

We are working hard to create a unified API from the most popular dataframe libraries. However, all the technologies are in different development stages. Many issues have been flying under the radar, but here, we want to highlight some of the most important ones.

Right now, the main limitations are as follows:

  • Creating a UDF for string processing in cuDF and Dask-cuDF since they are not supported yet: https://github.com/rapidsai/cudf/issues/7301.
  • cuDF, Dask-cuDF, and Vaex database connections are handled using Dask, which needs to load data as pandas dataframes and then convert them into the appropriate format based on a certain engine.
  • Regex cuDF support is limited. For example, it still can handle lowercase and uppercase characters at the same time: https://github.com/rapidsai/cudf/issues/5217.
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