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Machine Learning with R Quick Start Guide

You're reading from   Machine Learning with R Quick Start Guide A beginner's guide to implementing machine learning techniques from scratch using R 3.5

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Product type Paperback
Published in Mar 2019
Publisher Packt
ISBN-13 9781838644338
Length 250 pages
Edition 1st Edition
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Author (1):
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Iván Pastor Sanz Iván Pastor Sanz
Author Profile Icon Iván Pastor Sanz
Iván Pastor Sanz
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Toc

Sovereign Crisis - NLP and Topic Modeling

Continuing with the detection of economic problems in European countries, in this chapter, we will try to replicate country ratings, provided by Standard & Poor's, using both quantitative and qualitative information.

This chapter is an interesting real-case application, because we will use some basic text-mining techniques to replicate Standard & Poor's credit ratings. For this purpose, we will use the country reports issued by the European Commission for the European member states.

We will perform a text-mining process to extract combinations of words or useful terms to predict sovereign ratings.

The following topics will be covered in this chapter:

  • Predicting country ratings using macroeconomic information
  • Implementing decision trees
  • Predicting sovereign ratings using European country reports
...
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