基于网格的半结构化网络数据搜索模型  

A Semi-structure Data Searching Model Based on Grid

作　　者：陈庆奎[1] 那丽春[2] 

机构地区：[1]上海理工大学计算机工程学院,上海200093 [2]上海立信会计学院信息科学系,上海201620

出　　处：《计算机科学》2006年第12期110-113,共4页Computer Science

基　　金：国家自然科学基金(60573108);上海自然科学基金(04ZR14100)。

摘　　要：为了提高大规模网络数据搜索的效率,提出了一个基于网格机制的Internet网络数据搜索模型。给出了数据搜索节点、数据搜索服务器、数据搜索区域、数据服务器区域和数据搜索网格(DataSearchingGrid-DSG)等一系列定义。利用网络跳距离、数据搜索节点密度、计算节点能力和可信性机制以及市场服务代价原则,给出了DSG结构和构建算法。描述了基于DSG的网络数据搜索过程。该模型的控制结构是基于网格结构的,其具体搜索机制是非结构化的。理论分析表明,该模型具有良好的扩展性和较高的效率。For improving the efficiency of large scale Internet Data searching, a Grid-Based Management Model was discussed. A series of formal definitions, such as the Data Searching Node （DSN）, the Data Searching Server, the Data Searching Area, the Data searching Server Area and the Data Searching Grid （DSG）, were given. Using the network-skip-based distance, the density of DSN, the ability and Reliability of Computer and the mechanism of market price, the architecture and construction algorithms of DSG was proposed. The internet data searching process was described in DSG. The control structure of this model is Grid based, and its searching mechanism is semi-structure. The analysis shows that this model has the better expansibility and the higher efficiency.

关 键 词：网格 数据搜索模型 网络数据搜索 国际互联网 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]