Visualizing RDF Data for P 2 P Information Sharing

We discuss the problem of assisting the users of RDF-based Peer-to-peer systems for information sharing with visual information about available information and conceptual structures. We focus on the problem of exploring the knowledge available in the P2P network and of formulating queries at the conceptual level. After defining requirements for these tasks, we briefly introduce existing visualization tools that work on RDF-based data and discuss their suitability with respect to the identified requirements. We conclude with a discussion of visualization needs that are not supported by available tools and propose some directions for future research.