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Hands-On Big Data Analytics with PySpark

You're reading from  Hands-On Big Data Analytics with PySpark

Product type Book
Published in Mar 2019
Publisher Packt
ISBN-13 9781838644130
Pages 182 pages
Edition 1st Edition
Languages
Concepts
Authors (2):
Rudy Lai Rudy Lai
Profile icon Rudy Lai
LinkedIn
Colibri Digital is a technology consultancy company founded in 2015 by James Cross and Ingrid Funie. The company works to help its clients navigate the rapidly changing and complex world of emerging technologies, with deep expertise in areas such as big data, data science, machine learning, and Cloud computing. Over the past few years, they have worked with some of the World's largest and most prestigious companies, including a tier 1 investment bank, a leading management consultancy group, and one of the World's most popular soft drinks companies, helping each of them to better make sense of its data, and process it in more intelligent ways.The company lives by its motto: Data -> Intelligence -> Action. Rudy Lai is the founder of QuantCopy, a sales acceleration startup using AI to write sales emails for prospects. By taking in leads from your pipelines, QuantCopy researches them online and generates sales emails from that data. It also has a suite of email automation tools to schedule, send, and track email performancekey analytics that all feed back into how our AI generates content. Prior to founding QuantCopy, Rudy ran HighDimension.IO, a machine learning consultancy, where he experienced first-hand the frustrations of outbound sales and prospecting. As a founding partner, he helped startups and enterprises with HighDimension.IO's Machine-Learning-as-a-Service, allowing them to scale up data expertise in the blink of an eye. In the first part of his career, Rudy spent 5+ years in quantitative trading at leading investment banks such as Morgan Stanley. This valuable experience allowed him to witness the power of data, but also the pitfalls of automation using data science and machine learning. Quantitative trading was also a great platform from which you can learn about reinforcement learning and supervised learning topics in depth and in a commercial setting. Rudy holds a Computer Science degree from Imperial College London, where he was part of the Dean's List, and received awards such as the Deutsche Bank Artificial Intelligence prize.
See other products by Rudy Lai
Bartłomiej Potaczek Bartłomiej Potaczek
Profile icon Bartłomiej Potaczek
LinkedIn
Bartłomiej Potaczek is a software engineer working for Schibsted Tech Polska and programming mostly in JavaScript. He is a big fan of everything related to the react world, functional programming, and data visualization. He founded and created InitLearn, a portal that allows users to learn to program in a pair-programming fashion. He was also involved in InitLearn frontend, which is built on the React-Redux technologies. Besides programming, he enjoys football and crossfit. Currently, he is working on rewriting the frontend for tv.nu—Sweden's most complete TV guide, with over 200 channels. He has also recently worked on technologies including React, React Router, and Redux.
See other products by Bartłomiej Potaczek
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Table of Contents (15) Chapters

Preface Installing Pyspark and Setting up Your Development Environment Getting Your Big Data into the Spark Environment Using RDDs Big Data Cleaning and Wrangling with Spark Notebooks Aggregating and Summarizing Data into Useful Reports Powerful Exploratory Data Analysis with MLlib Putting Structure on Your Big Data with SparkSQL Transformations and Actions Immutable Design Avoiding Shuffle and Reducing Operational Expenses Saving Data in the Correct Format Working with the Spark Key/Value API Testing Apache Spark Jobs Leveraging the Spark GraphX API Other Books You May Enjoy

Summary

In this chapter, we have learned how to calculate averages with map and reduce. We also learned faster average computations with aggregate. Finally, we learned that pivot tables allow us to aggregate data based on different values of features, and that, with pivot tables in PySpark, we can leverage handy functions, such as reducedByKey or countByKey.

In the next chapter, we will learn about MLlib, which involves machine learning, which is a very hot topic.

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Authors (2)

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Profile icon Rudy Lai
LinkedIn
Colibri Digital is a technology consultancy company founded in 2015 by James Cross and Ingrid Funie. The company works to help its clients navigate the rapidly changing and complex world of emerging technologies, with deep expertise in areas such as big data, data science, machine learning, and Cloud computing. Over the past few years, they have worked with some of the World's largest and most prestigious companies, including a tier 1 investment bank, a leading management consultancy group, and one of the World's most popular soft drinks companies, helping each of them to better make sense of its data, and process it in more intelligent ways.The company lives by its motto: Data -> Intelligence -> Action. Rudy Lai is the founder of QuantCopy, a sales acceleration startup using AI to write sales emails for prospects. By taking in leads from your pipelines, QuantCopy researches them online and generates sales emails from that data. It also has a suite of email automation tools to schedule, send, and track email performancekey analytics that all feed back into how our AI generates content. Prior to founding QuantCopy, Rudy ran HighDimension.IO, a machine learning consultancy, where he experienced first-hand the frustrations of outbound sales and prospecting. As a founding partner, he helped startups and enterprises with HighDimension.IO's Machine-Learning-as-a-Service, allowing them to scale up data expertise in the blink of an eye. In the first part of his career, Rudy spent 5+ years in quantitative trading at leading investment banks such as Morgan Stanley. This valuable experience allowed him to witness the power of data, but also the pitfalls of automation using data science and machine learning. Quantitative trading was also a great platform from which you can learn about reinforcement learning and supervised learning topics in depth and in a commercial setting. Rudy holds a Computer Science degree from Imperial College London, where he was part of the Dean's List, and received awards such as the Deutsche Bank Artificial Intelligence prize.
Read more
See other products by Rudy Lai
Profile icon Bartłomiej Potaczek
LinkedIn
Bartłomiej Potaczek is a software engineer working for Schibsted Tech Polska and programming mostly in JavaScript. He is a big fan of everything related to the react world, functional programming, and data visualization. He founded and created InitLearn, a portal that allows users to learn to program in a pair-programming fashion. He was also involved in InitLearn frontend, which is built on the React-Redux technologies. Besides programming, he enjoys football and crossfit. Currently, he is working on rewriting the frontend for tv.nu—Sweden's most complete TV guide, with over 200 channels. He has also recently worked on technologies including React, React Router, and Redux.
Read more
See other products by Bartłomiej Potaczek
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