Book Image

Mastering Spark for Data Science

By : Andrew Morgan, Antoine Amend, Matthew Hallett, David George
Book Image

Mastering Spark for Data Science

By: Andrew Morgan, Antoine Amend, Matthew Hallett, David George

Overview of this book

Data science seeks to transform the world using data, and this is typically achieved through disrupting and changing real processes in real industries. In order to operate at this level you need to build data science solutions of substance –solutions that solve real problems. Spark has emerged as the big data platform of choice for data scientists due to its speed, scalability, and easy-to-use APIs. This book deep dives into using Spark to deliver production-grade data science solutions. This process is demonstrated by exploring the construction of a sophisticated global news analysis service that uses Spark to generate continuous geopolitical and current affairs insights.You will learn all about the core Spark APIs and take a comprehensive tour of advanced libraries, including Spark SQL, Spark Streaming, MLlib, and more. You will be introduced to advanced techniques and methods that will help you to construct commercial-grade data products. Focusing on a sequence of tutorials that deliver a working news intelligence service, you will learn about advanced Spark architectures, how to work with geographic data in Spark, and how to tune Spark algorithms so they scale linearly.
Table of Contents (22 chapters)
Mastering Spark for Data Science
Credits
Foreword
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Named entity recognition


Building a web scraper that enriches an input dataset containing URLs with external web-based HTML content is of great business value within a big data ingestion service. But while an average data scientist should be able to study the returned content by using some basic clustering and classification techniques, an expert data scientist will bring this data enrichment process to the next level, by further enriching and adding value to it in post processes. Commonly, these value-added, post processes include disambiguating the external text content, extracting entities (like People, Places, and Dates), and converting raw text into its simplest grammatical form. We will explain in this section how to leverage the Spark framework in order to create a reliable Natural Language Processing (NLP) pipeline that includes these valuable post-processed outputs, and which handles English language-based content at any scale.

Scala libraries

ScalaNLP (http://www.scalanlp.org/) is...