sual hallucination experienced daily by billions of legitimate op-
erators, in every nation, by children being taught mathematical
concepts...A graphical representation of data abstracted from the
banks of every computer in the human systems. Unthinkable com-
plexity. Lines of light ranged in the non-space of the mind, clusters
and constellations of data. Like city lights, receding...
mal word first thought to have been used by the novelist William
Gibson to refer to the total data on all the computers on all the
networks in the world. The word has passed into common use
as a way of referring to any large collection of network-accessible
computer-based data.
commercial (multi-)user application-level services offered through
a Cyberspace media such as the wireless or wired Internet. Exam-
ple services include Massively Multiplayer Online Games, Mobile
Commerce, Electronic Commerce, E-mail and the World Wide
Web.
tions, software and (log) data representing actions and profiles for
users of cyberspace services.
prediction of a user's (near) future action or preference based on
the user representation data describing the user itself, and other
users in the same or related cyberspace services. Applications in-
clude pre-fetching and personalization of digital content, and au-
tomatic recommendations of products and services. Examples of
methods enabling this are classification and collaborative filtering
.
closely related, i.e. you can't perform algorithmic and (partially) automatic user
prediction in cyberspace without user representation data.