| P2P and Semantic Web can together provide a paradigm shift for searching information on Internet, currently limited to simple keyword-based searches. Ontology, the cornerstone of Semantic Web, and the Resource Description Framework (RDF), a structure for describing and interchanging metadata, were used in our approach to create peer profiles, yielding a new level of information exchange in P2P. RDF-enabled P2P networks incorporate semantics into routing and searching by taking advantage of available metadata at peer level. We propose a profile-based P2P application architecture---SeReDNet, built on a hybrid hypercube network topology that enables efficient profile-based semantic routing and search. Compared with simpler P2P applications, such as Napster or Gnutella, SeReDNet supports advanced and extendable resource descriptions that allow for complex query mechanisms. We demonstrate our approach with a semantic search scenario, simulated through SeReDNet, and show that profile-enabled networks hold the key to the next generation of information search. |
