The Information Discovery Graph: towards a scalable multimedia resource directory

Presents the design, rationale and basic mechanisms of the Information Discovery Graph (IDG), a scalable multimedia resource directory. Facing the fundamental challenge of scaling with both large amounts of resources and large numbers of users, the IDG is made up of a self-organizing hierarchy of information managers, each maintaining resource information for specific topics or areas. Multimedia data sources register themselves with the IDG system and keep the information up to date. Preliminary simulation results demonstrate the approach´s promise. A number of open research issues are also addressed