August 2019
Intermediate to advanced
342 pages
9h 35m
English
As known from linear algebra, the equation that represents the function used to determine the score to be associated with every single email message is as follows:

This identifies a straight line in the Cartesian plane; therefore, the classifier used by our spam filter to classify emails is called a linear classifier. Using the known mathematical formalization commonly adopted in statistics, it is possible to redefine the previous equation in a more compact form by introducing the sum operator
, substituting ...