From a technical point of view how Google in different ways can (or could) gather information about users and use it to customize advertisements, both at their own and others' sites. What kinds of information can be gathered?
From a technical point of view how Google in different ways can (or could) gather information about users and use it to customize advertisements, both at their own and others' sites. What kinds of information can be gathered?
The best way is to read and understand Google's patent describing their contextual advertising process of scoring ads by price, relevancy, and performance, using a technique called "probabilistic hierarchical inferential learned cluster."