December 2018
Beginner to intermediate
684 pages
21h 9m
English
Content preview from Hands-On Machine Learning for Algorithmic Trading
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Business reviews – the Yelp dataset challenge
Finally, we apply sentiment analysis to the significantly larger Yelp business review dataset with five outcome classes. The data consists of several files with information on the business, the user, the review, and other aspects that Yelp provides to encourage data science innovation.
We will use around six million reviews produced over the 2010-2018 period (see the relevant notebook for details). The following diagrams show the number of reviews and the average number of stars per year:
Graphs representing number of reviews and the average number of stars per year
In addition to the text features ...