<Super-peer based routing and clustering stategies for RDf based peer-to-peer networks>
RDF-based (schema based) Hierarchy: peers connect with super peers, Super-peers form the backbone with the HyperCuP topology, which enable efficient broadcast. And super-peer use broadcast the HyperCup to maintain the topology (or say membership) and rout queries.
Every super-peer maintains a SP-P(super-peer, peer) and SP-SP index. The index is a summary of the metadata of the peer. The index can be at different granularities. The index may incude only schema peer suport, or may include property/sets of peroperties, or property value range or property values. shows in the picture.
A match of a query means a peer understands and can answer a pecific query, but does not gurantee a non-empty answer set. To support communication amoung diffent schemas, mediation service. Implement on top of JAXA.
