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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.