]> Ghosts in the Machine Ghosts in the Machine The Ghost vocabulary has been designed to allow the association of a user surrogate with the descriptions of that user, for the purpose of determining the contextually relevant information which is to be displayed to the user. Nick Gibbins Alun Preece Ian Millard monica schraefel 2004-06-30 2004-07-01 Ghost A ghost is a surrogate for a user, and is used to identify the user within the system for the purpose of determining the contextually-relevant information which is to be displayed to the user. Description A description contains references to a description of the user which is associated with a ghost, and the vocabularies used in that description. has description Associates a ghost with the relevant descriptions of the user whose ghost this is has locator This property indicates the RDF file which contains the information used in this description. has identifier This property indicates the individual within an RDF file that represents the user whose ghost is being described. uses ontology This property indicates the vocabularies or ontologies which are being used to describe the individual that represents the user whose ghost is being described.