Information Filtering System - History

History

Before the advent of the Internet, there are already several methods of filtering information; for instance, if a government controls and restricts the flow of information, speaking of censorship, although, somewhat in a democratic country it will do to satisfy needs of beneficiaries.

On the other hand, we are going to talk about information filters if we refer to newspaper editors and journalists when they provide a service that selects the most valuable information for their clients, readers of books, magazines, newspapers, radio listeners and viewers TV. This filtering operation is also present in schools and universities where there is a selection of information to provide assistance based on academic criteria to customers of this service, the students. With the advent of the Internet it increases the possibility that anyone can publish low-cost all one wish. In this way, it increases considerably the less useful information and consequently the quality information is disseminated. With this problem, it began to devise new filtering with which we can get the information required for each specific topic to easily and efficiently.