Automated Data Collection With R (Innbundet)

A Practical Guide to Web Scraping and Text Mining


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Forfatter: , , og
Innbinding: Innbundet
Utgivelsesår: 2014
Antall sider: 474
Forlag: John Wiley & Sons Inc
Språk: Engelsk
ISBN/EAN: 9781118834817
Omtale Automated Data Collection With R
A hands on guide to web scraping and text mining for both beginners and experienced users of R * Introduces fundamental concepts of the main architecture of the web and databases and covers HTTP, HTML, XML, JSON, SQL. * Provides basic techniques to query web documents and data sets (XPath and regular expressions). * An extensive set of exercises are presented to guide the reader through each technique. * Explores both supervised and unsupervised techniques as well as advanced techniques such as data scraping and text management. * Case studies are featured throughout along with examples for each technique presented. * R code and solutions to exercises featured in the book are provided on a supporting website.

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