This was a chapter about textual analysis. We learned that it's a best practice in text analysis to get rid of stopwords.

In the bag-of-words model, we created from a document a bag containing words found in the document. Using all the word counts, we can build a feature vector for each document.

Classification algorithms are a type of machine learning algorithm, which involve determining the class of a given item. Naive Bayes classification is a probabilistic algorithm based on the Bayes theorem from probability theory and statistics. The Bayes theorem states that the posterior probability is proportional to the prior probability multiplied by the likelihood.

The next chapter will describe machine learning in more detail. Machine learning ...

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