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Essential PySpark for Scalable Data Analytics

You're reading from   Essential PySpark for Scalable Data Analytics A beginner's guide to harnessing the power and ease of PySpark 3

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Product type Paperback
Published in Oct 2021
Publisher Packt
ISBN-13 9781800568877
Length 322 pages
Edition 1st Edition
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Author (1):
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Sreeram Nudurupati Sreeram Nudurupati
Author Profile Icon Sreeram Nudurupati
Sreeram Nudurupati
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Table of Contents (19) Chapters Close

Preface 1. Section 1: Data Engineering
2. Chapter 1: Distributed Computing Primer FREE CHAPTER 3. Chapter 2: Data Ingestion 4. Chapter 3: Data Cleansing and Integration 5. Chapter 4: Real-Time Data Analytics 6. Section 2: Data Science
7. Chapter 5: Scalable Machine Learning with PySpark 8. Chapter 6: Feature Engineering – Extraction, Transformation, and Selection 9. Chapter 7: Supervised Machine Learning 10. Chapter 8: Unsupervised Machine Learning 11. Chapter 9: Machine Learning Life Cycle Management 12. Chapter 10: Scaling Out Single-Node Machine Learning Using PySpark 13. Section 3: Data Analysis
14. Chapter 11: Data Visualization with PySpark 15. Chapter 12: Spark SQL Primer 16. Chapter 13: Integrating External Tools with Spark SQL 17. Chapter 14: The Data Lakehouse 18. Other Books You May Enjoy

Model serving and inferencing

Model serving and inferencing is the most important step of the entire ML life cycle. This is where the models that have been build are deployed to business applications so that we can draw inferences from them. Model serving and inferencing can happen in two ways: using batch processing in offline mode or in real time in online mode.

Offline model inferencing

Offline model inferencing is the process of generating predictions from a ML model using batch processing. The batch processing inference jobs run periodically on a recurring schedule, producing predictions on a new set of fresh data every time. These predictions are then stored in a database or on the data lake and are consumed by business applications in an offline or asynchronous way. An example of batch inferencing would be data-driven customer segmentation being used by the marketing teams at an organization or a retailer predicting customer lifetime value. These use cases do not demand...

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