科学技术与工程
科學技術與工程
과학기술여공정
SCIENCE TECHNOLOGY AND ENGINEERING
2015年
24期
180-184
,共5页
吴军%卢虹宇%洪薇%白光伟
吳軍%盧虹宇%洪薇%白光偉
오군%로홍우%홍미%백광위
P2 P%小世界模型%信任机制%资源搜索
P2 P%小世界模型%信任機製%資源搜索
P2 P%소세계모형%신임궤제%자원수색
P2P%small world%credibility mechanism%resource search
在P2 P中,大量的资源共享已经成为重要应用之一。有效的资源搜索方法是实现资源共享功能的重要基础,资源搜索效率既取决于网络的拓扑结构,又与搜索策略相关。现有的搜索算法存在网络负载较大和搜索效率偏低的问题。以P2 P为研究对象,根据小世界网络较短平均路径长度和较高聚类系数的特性,提出一种小世界模型下基于信誉机制来遴选最优路径( CMS),从而实现一定可信程度下资源高效率搜索。实验结果表明,该搜索机制提高资源搜索的命中率的同时,有利于数据包的快速传递且具有一定的资源搜索可信性。
在P2 P中,大量的資源共享已經成為重要應用之一。有效的資源搜索方法是實現資源共享功能的重要基礎,資源搜索效率既取決于網絡的拓撲結構,又與搜索策略相關。現有的搜索算法存在網絡負載較大和搜索效率偏低的問題。以P2 P為研究對象,根據小世界網絡較短平均路徑長度和較高聚類繫數的特性,提齣一種小世界模型下基于信譽機製來遴選最優路徑( CMS),從而實現一定可信程度下資源高效率搜索。實驗結果錶明,該搜索機製提高資源搜索的命中率的同時,有利于數據包的快速傳遞且具有一定的資源搜索可信性。
재P2 P중,대량적자원공향이경성위중요응용지일。유효적자원수색방법시실현자원공향공능적중요기출,자원수색효솔기취결우망락적탁복결구,우여수색책략상관。현유적수색산법존재망락부재교대화수색효솔편저적문제。이P2 P위연구대상,근거소세계망락교단평균로경장도화교고취류계수적특성,제출일충소세계모형하기우신예궤제래린선최우로경( CMS),종이실현일정가신정도하자원고효솔수색。실험결과표명,해수색궤제제고자원수색적명중솔적동시,유리우수거포적쾌속전체차구유일정적자원수색가신성。
In peer-to-peer networks, a large number of resources sharing has become one of the important appli-cations. Realization of this function is based on the effective efficiency of resource search. The efficiency of re-source search depends on the network topology and the search strategy. However, the existing search algorithm net-work load is relatively large, and efficiency of search is relatively low. The characteristics of small world model where clustering coefficient is higher and average path length is shorter is studied, and put forward an optimal trust path selection algorithm based on credibility mechanism, so as to promote the efficiency of resource search. Experi-mental results show that this machine improves the rate of resource search. At the same time, promote fast transmis-sion of the packet and has a certain credibility of resource search.