SOON: A Scalable Self-organized Overlay Network for Distributed Information Retrieval

Authors:
Juan Li;Son Vuong
Affiliations:
Computer Science Department, University of British Columbia, Vancouver, Canada;Computer Science Department, University of British Columbia, Vancouver, Canada
Venue:
DSOM '08 Proceedings of the 19th IFIP/IEEE international workshop on Distributed Systems: Operations and Management: Managing Large-Scale Service Deployment
Year:
2008

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Abstract

Locating desirable resources and information from a large-scale distributed system such as P2P system and grid is a very important issue. However, the distributed, heterogeneous, and unstructured nature of the system makes this issue very challenging. In this paper, we propose Self-Organized Overlay Network (SOON), an unstructured P2P overlay architecture, to facilitate sharing and searching semantically heterogeneous contents. In particular, we have proposed a semantics-aware topology construction method to group nodes sharing similar semantics together to create small-worlds. For this purpose, we have designed an algorithm to extract a node's ontology summary and use that summary to compute the semantic similarity between nodes. With this semantic similarity defined, nodes are grouped accordingly, forming semantic virtual domains and clusters. Resource information integration and searching can be efficiently performed on top of this topology.