Simon Munzert & Christian Rubba & Peter Meißner & Dominic Nyhuis - Automated Data Collection with R: A Practical Guide to Web Scraping and Text Mining

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Название: Automated Data Collection with R: A Practical Guide to Web Scraping and Text Mining
Год: 2015
Издатель: Wiley
Язык: english
Кол-во страниц: 454
Формат: PDF


Описание:

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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