Peer-to-Peer Clustering for Semantic Overlay Network Generation

The peer-to-peer (P2P) paradigm presents an attractive solution for applications that require scalability, fault-tolerance and autonomy. P2P systems in their basic unstructured form suffer high costs when it comes to efficiently locating content, mainly due to the lack of global knowledge. It is therefore crucial to organize content in an unsupervised way by creating groups of peers with similar content, in order to support efficient search mechanisms. In this paper, we discuss the need for content organization in unstructured P2P networks and present the requirements that must be fulfilled by any approach. We propose P2P clustering as a potential solution to Semantic Overlay Network (SON) generation for organizing P2P networks, and we present our unsupervised approach for decentralized SON creation towards this end.