Content-Based Clustered P2P Search Model Depending on Set Distance

Authors:
Jing Wang;Shoubao Yang
Affiliations:
University of Science and Technology of China, China;University of Science and Technology of China, China
Venue:
WI-IATW '06 Proceedings of the 2006 IEEE/WIC/ACM international conference on Web Intelligence and Intelligent Agent Technology
Year:
2006

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SETS: search enhanced by topic segmentation

Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval

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Abstract

The main issues that affect query efficiency and search cost in content-based unstructured P2P search system are the complexity of computing the similarity of the documents brought by high dimensions and the great deal of redundant messages coming with flooding. This paper defines the documents similarity by the way of set distance. This method restrains the complexity of computing the document similarity in linear time. Also, this paper clusters the peers based on content by their set distance to reduce the query time and redundant messages. Simulations show that the content-based search model constructed by set distance not only has higher recall, but also reduce the search cost and query time to the rate of 40% and 30% of Gnutella.