document: The SOWES approach to P2P web search using semantic overlays Peer-to-peer ( P2P ) Web search has gained a lot of interest lately , due to the salient characteristics of P2P systems , namely scalability , fault-tolerance and load-balancing . However , the lack of global knowledge in a vast and dynamically evolving environment like the Web presents a grand challenge for organizing content and providing efficient searching . Semantic overlay networks ( SONs ) have been proposed as an approach to reduce cost and increase quality of results , and in this paper we present an unsupervised approach for distributed and decentralized SON construction , aiming to support efficient search mechanisms in unstructured P2P systems .
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