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Machine Learning Solutions
book

Machine Learning Solutions

by Jalaj Thanaki
April 2018
Beginner to intermediate content levelBeginner to intermediate
566 pages
12h 17m
English
Packt Publishing
Content preview from Machine Learning Solutions

Understanding the testing matrix

In this section, we will understand the testing matrix and visualization approaches to evaluate the performance of the trained ML model. So let's understand both approaches, which are as follows:

  • The default testing matrix
  • The visualization approach

The default testing matrix

We are using the default score API of scikit-learn to check how well the ML is performing. In this application, the score function is the coefficient of the sum of the squared error. It is also called the coefficient of R2, which is defined by the following equation:

The default testing matrix

Here, u indicates the residual sum of squares. The equation for u is as follows: ...

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Publisher Resources

ISBN: 9781788390040Supplemental Content