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Tree-Based Index Overlay in Hybrid Peer-to-Peer Systems 被引量:1

Tree-Based Index Overlay in Hybrid Peer-to-Peer Systems
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摘要 Hybrid Peer-to-Peer (P2P) systems that construct overlay networks structured among superpeers have great potential in that they can give the benefits such as scalability, search speed and network traffic, taking advantages of superpeer-based and the structured P2P systems. In this article, we enhance keyword search in hybrid P2P systems by constructing a tree-based index overlay among directory nodes that maintain indices, according to the load and popularity of a keyword. The mathematical analysis shows that the keyword search based on semi-structured P2P overlay can improve the search performance, reducing the message traffic and maintenance costs. Hybrid Peer-to-Peer (P2P) systems that construct overlay networks structured among superpeers have great potential in that they can give the benefits such as scalability, search speed and network traffic, taking advantages of superpeer-based and the structured P2P systems. In this article, we enhance keyword search in hybrid P2P systems by constructing a tree-based index overlay among directory nodes that maintain indices, according to the load and popularity of a keyword. The mathematical analysis shows that the keyword search based on semi-structured P2P overlay can improve the search performance, reducing the message traffic and maintenance costs.
出处 《Journal of Computer Science & Technology》 SCIE EI CSCD 2010年第2期313-329,共17页 计算机科学技术学报(英文版)
基金 supported by the Korea Research Foundation Grant funded by the Korean Government(MOEHRD) under Grant No.KRF-2007-314-D00223.
关键词 tree-based index overlay keyword search fault-tolerance performance tree-based index overlay, keyword search, fault-tolerance, performance
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