This introduction to matrices, linear algebra, statistics, and probability in Go has given us a set of tools to understand, structure, and operate on data. This set of tools will be used throughout the book as we work on a diverse set of problems, and these tools could be used in a variety of contexts outside of machine learning. However, in the next chapter, we will discuss some ideas and techniques that will be extremely important in the machine learning context, specifically, evaluation and validation.
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