Python Machine Learning By Example - Third Edition

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Predicting Online Ad Click-Through with Logistic Regression

In the previous chapter, we predicted ads click-through using tree algorithms. In this chapter, we will continue our journey of tackling the billion-dollar problem. We will focus on learning a very (probably the most) scalable classification model—logistic regression. We will explore what the logistic function is, how to train a logistic regression model, adding regularization to the model, and variants of logistic regression that are applicable to very large datasets. Besides its application in classification, we will also discuss how logistic regression and random forest are used to pick significant features. You won't get bored as there will be lots of implementations from scratch ...