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Mastering Spark for Data Science

You're reading from   Mastering Spark for Data Science Lightning fast and scalable data science solutions

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Product type Paperback
Published in Mar 2017
Publisher Packt
ISBN-13 9781785882142
Length 560 pages
Edition 1st Edition
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Authors (5):
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David George David George
Author Profile Icon David George
David George
Matthew Hallett Matthew Hallett
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Matthew Hallett
Antoine Amend Antoine Amend
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Antoine Amend
Andrew Morgan Andrew Morgan
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Andrew Morgan
Albert Bifet Albert Bifet
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Albert Bifet
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Toc

Table of Contents (15) Chapters Close

Preface 1. The Big Data Science Ecosystem 2. Data Acquisition FREE CHAPTER 3. Input Formats and Schema 4. Exploratory Data Analysis 5. Spark for Geographic Analysis 6. Scraping Link-Based External Data 7. Building Communities 8. Building a Recommendation System 9. News Dictionary and Real-Time Tagging System 10. Story De-duplication and Mutation 11. Anomaly Detection on Sentiment Analysis 12. TrendCalculus 13. Secure Data 14. Scalable Algorithms

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...

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