| 一种基于兴趣域的高效对等网络搜索方案 |
| |
| 引用本文： | 杨舰,吕智慧,钟亦平,张世永.一种基于兴趣域的高效对等网络搜索方案[J].计算机研究与发展,2005,42(5):804-809. |
| |
| 作者姓名： | 杨舰 吕智慧 钟亦平 张世永 |
| |
| 作者单位： | 复旦大学计算机与信息技术系,上海,200433;复旦大学计算机与信息技术系,上海,200433;复旦大学计算机与信息技术系,上海,200433;复旦大学计算机与信息技术系,上海,200433 |
| |
| 基金项目： | 国家自然科学基金项目(60373018) |
| |
| 摘 要： | 为了改进无结构对等网络中搜索效率低下的问题，提出了一种基于兴趣域的高效搜索方案．和常用的随机搜索方案不同，在所提方案中。文档属性由元数据通过RDF语句描述，拥有相同元数据的节点同属一个兴趣域，搜索请求首先在兴趣域中传播，大大提高了搜索效率．随着搜索过程的进行，节点对兴趣域内其他节点了解越多其搜索效率也越高．通过元数据选择窗口和元数据复制机制，可以进一步提高搜索效率．模拟实验结果证实了所提方案在无结构对等网络中的准确和高效．
|
| 关 键 词： | 对等网络 兴趣域 元数据 搜索 |
A Domain of Interest Based Novel Search Scheme in P2P Networks |
| |
| Yang Jian,Lu Zhihui,ZHONG Yiping,Zhang Shiyong.A Domain of Interest Based Novel Search Scheme in P2P Networks[J].Journal of Computer Research and Development,2005,42(5):804-809. |
| |
| Authors: | Yang Jian Lu Zhihui ZHONG Yiping Zhang Shiyong |
| |
| Abstract: | A novel search scheme is proposed to address the efficiency and scalability issues in unstructured peer-to-peer networks Unlike the notorious search scheme of flooding in unstructured peer-to-peer networks, the proposed scheme is based on the domain of interest that is formed by nodes sharing the same interest Search request is propagated within the domain of interest, and the efficiency of search process is very high after nodes in the same domain of interest get familiar with one another In the proposed scheme, attributes of document are described by metadata using RDF statements to support flexible queries; nodes having the same metadata belong to the same domain of interest With the facility of metadata selection window and metadata replication, performance of the proposed search scheme is further improved Simulation results prove the effectiveness and efficiency of the proposed scheme |
| |
| Keywords: | peer-to-peer network domain of interest metadata search |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
