摘要
对等计算(peer-to-peer,P2P)应用于数据共享领域时,如何进行数据的查询是提高系统效率、增强系统可扩展性的很重要的技术问题。详细介绍应用在非结构化数据共享系统中的主要查询策略的同时分析了这些策略存在的弊端,并在此基础上提出了一种新的查询策略BDBFS(Better D irected B readth-first Traversal),通过与其它查询方法对比证明该方法可以有效地提高非结构化数据共享系统的效率及可扩展性。
In data-sharing application P2P system, it＇s a key technical problem that how to find and retrieve data. Efficient query processing relates to efficiency and scalability of peer-to-peer system. In this paper, several query strategies in unstructured data - sharing system are presented. We analyze their deficiencies,and then provide a new method-BDBFS （ Better Directed Breadth-first Traversal）, which can improve efficiency and scalability of unstructured data-sharing system more effectively than other query strategies.
出处
《计算机应用与软件》
CSCD
北大核心
2006年第6期53-55,共3页
Computer Applications and Software
