July 2018
Beginner to intermediate
146 pages
3h 39m
English
Content preview from Hands-On Recommendation Systems with Python
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Root mean square error
The Root Mean Square Error (or RMSE) is a metric widely used to gauge the performance of regressors. Mathematically, it is represented as follows:
Here, 
is the ith real target value and 
is the ith predicted target value.
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