Improving query answering in peer-to-peer data searching

zPeer-to-Peer (P2P) networks have become an important infrastructure during the last years. It emerged as a new paradigm for building distributed network applications. This paper focuses on the schema based P2P systems for the exchange of scientific documents based on Semantic Overlay Clusters SOC. The creation of context specific, logical views over the physical P2P network topology is enabled using SOC for clustering the super-peer networks. It has been shown that SOCs can be defined based on certain policies along with a description of such policies in the Edutella P2P network to improve complex query routing. Furthermore, an investigation on possible operators for establishing conditions for mapping/matching the peer descriptions to the policies is discussed.