According to the deficiency of Chord algorithm supporting single keyword query only, a P2P framework-HilbertChord by combining the Hilbert curve and Chord is proposed for managing grid service resources, which support...According to the deficiency of Chord algorithm supporting single keyword query only, a P2P framework-HilbertChord by combining the Hilbert curve and Chord is proposed for managing grid service resources, which supports DHT-based multi-keyword query and approximate query by means of Hilbert index to improve resources searching ability. Experiments show that HilbertChord has better efficiency and scalability for managing service resources under the large scale P2P environment with higher density of services.展开更多
Chord是一种数值逐步逼近的P2P路由算法,它能够快速地定位资源。在Chord环上由于结点的随机性,资源定位时产生了逻辑路径和物理路径不一致及绕环问题,致使网络延迟增大。混合P2P具有很强的网络局部性,但查询效率低。提出了基于改进的混...Chord是一种数值逐步逼近的P2P路由算法,它能够快速地定位资源。在Chord环上由于结点的随机性,资源定位时产生了逻辑路径和物理路径不一致及绕环问题,致使网络延迟增大。混合P2P具有很强的网络局部性,但查询效率低。提出了基于改进的混合P2P的Chord算法(Chord Algorithm Based on Enhanced Hybrid P2P,CBEH),该算法利用增强的混合P2P中超级结点的网络信息,在路由过程中优先选取物理距离近的结点。实验表明CBEH能够有效地减少路由查找时延,提高路由性能。展开更多
文摘According to the deficiency of Chord algorithm supporting single keyword query only, a P2P framework-HilbertChord by combining the Hilbert curve and Chord is proposed for managing grid service resources, which supports DHT-based multi-keyword query and approximate query by means of Hilbert index to improve resources searching ability. Experiments show that HilbertChord has better efficiency and scalability for managing service resources under the large scale P2P environment with higher density of services.
文摘Chord是一种数值逐步逼近的P2P路由算法,它能够快速地定位资源。在Chord环上由于结点的随机性,资源定位时产生了逻辑路径和物理路径不一致及绕环问题,致使网络延迟增大。混合P2P具有很强的网络局部性,但查询效率低。提出了基于改进的混合P2P的Chord算法(Chord Algorithm Based on Enhanced Hybrid P2P,CBEH),该算法利用增强的混合P2P中超级结点的网络信息,在路由过程中优先选取物理距离近的结点。实验表明CBEH能够有效地减少路由查找时延,提高路由性能。
