Semantic Wikis Distributed on Structured Peer-to-Peer Networks

P2P Semantic wikis were initially developed as collaborative editors with two main goals in mind: (1) ensure a massive collaborative editing in semantic wikis with low maintenance cost where thousands of users can participate in the wiki edition and (2) provide fault tolerance for semantic wikis. Their goals were attained through the adoption of an optimistic replication of their data (semantic wiki pages and annotations) on a set of interconnected semantic wiki servers. The edition of the semantic wiki pages and the execution of semantic queries are now distributed on different peers. Two Peer-to-Peer Semantic Wikis were developed, Swooki and DSMW. They are based on unstructured P2P network where each peer knows its neighbors without any knowledge about their contents. In spite of their advantages, Swooki will face scalability problem regarding the size of data that it is dealing with since it uses a total replication of the entire wiki pages and the triples store, it will be only suitable for small wikis, and DSMW semantic queries may return different and incomplete results since every peer has its own semantic wiki pages and annotations. In this paper, we propose to handle the problems of unstructured P2PSW by building Structured P2P semantic wiki (SP2PSW).The research work proposes all the possible approaches to build SP2PSW, evaluates each approach based on many standard evaluation metrics, derives the optimal one and develops the needed algorithms. At the end, a comparison with the existing unstructured P2PSW (Swooki and DSMW) shows the marked improvement of SP2PSW over Unstructured P2PSW.