Regression and Classification Problems

We see classification and regression problems all around us in our daily life. The chances of rain from https://weather.com, our emails getting filtered into the spam mailbox and inbox, our personal and home loans getting accepted or rejected, deciding to pick our next holiday destination, exploring the options for buying a new house, investment decisions to gain short- and long-term benefits, purchasing the next book from Amazon; the list goes on and on. The world around us today is increasingly being run by algorithms that help us with our choices (which is not always a good thing).

As discussed in Chapter 2, Exploratory Analysis of Data, we will use the Minto Pyramid principle called Situation–Complication–Question (SCQ) to define our problem statement. The following table shows the SCQ approach for Beijing's PM2.5 problem:

Figure 3.3: Applying SCQ on Beijing's PM2.5 problem.

Now, in the SCQ construct described in the previous table, we can do a simple...