A confusion matrix is a handy option to current the forms of errors a machine studying mode makes. It’s an N by N grid with numbers, the place the worth within the [n, m] cell represents the variety of examples annotated with the n-th class acknowledged because the m-th class. On this tutorial, I’ll deal with making a confusion matrix and a heatmap. The colour palette shall be used to show the sizes of various teams, making it straightforward to note similarities or vital variations in group sizes. This type of visualization is helpful whenever you take care of quite a few classes.
Here’s a visible rationalization of the weather of the confusion matrix.