基于Hash散列分布的数字信息并行存贮  

Store Style of Digital Information with Hash-based Parallel Distributed Algorithm

作　　者：李耀辉[1] 刘保军[2] 

机构地区：[1]中国科学院成都计算机应用研究所,成都610041 [2]华北科技学院计算机科学系,北京东燕郊101601

出　　处：《燕山大学学报》2004年第1期86-89,共4页Journal of Yanshan University

摘　　要：针对数字图书馆信息资源的日益庞大,单服务器不能满足信息存贮的要求,提出了采用Hash并行分布方法对信息在层次数据库上进行分布,以保证数字信息的聚集存贮及在服务器上的分布近似达到均衡,从而满足海量信息存贮以提高信息检索的效率。同时,根据分布方法给出在对数字信息进行检索时服务器端执行的算法、时间复杂度,最后对算法的影响时间进行分析。Now digital library is prosperous, but there is no standard in its development. With the increasing of information in digital library, the only one server can't apply for so more information. Therefore, it's recommended that Hash-based Parallel Join Algorithm, which is used in the physical store of them. If Hash algorithm is applied, the information distribution can be equilibrium approximately in more than one server, and hence, the efficiency of information searching is improved. Finally, the detail of this algorithm is proposed, which run on the server, and it can match the characteristics of digital library.

关 键 词：数字图书馆 信息资源 存贮模式 层次数据库 Hash并行分布方法 

分 类 号：G250.76[文化科学—图书馆学] TP333[自动化与计算机技术—计算机系统结构]