| P2P网络中基于多关键字的信息检索研究 |
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| 引用本文： | 曾宇斌,刘贵全. P2P网络中基于多关键字的信息检索研究[J]. 计算机应用与软件, 2007, 24(8): 119-121 |
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| 作者姓名： | 曾宇斌 刘贵全 |
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| 作者单位： | 中国科学技术大学计算机科学与技术系,安徽,合肥,230027;中国科学技术大学计算机科学与技术系,安徽,合肥,230027 |
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| 摘 要： | P2P网络在信息资源共享方面获得了很大的成功,但是传统的P2P不能兼顾系统的扩展性和基于多关键字信息检索的能力.所提出的P2P模型中,构造了二维索引空间,采用DHT技术实现节点对索引空间的分区管理;依据其内容,文档被映射为索引空间中的多个点,将基于关键字的信息检索转化为在索引空间中寻找特定区域的过程.因此,系统具有很好的扩展性,并对基于多关键字信息检索提供了良好支持.
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| 关 键 词： | P2P 信息检索 分布式哈希表(DHT) |
| 修稿时间： | 2005-04-05 |
RESEARCH OF MULTI-KEYWORD BASED INFORMATION RETRIEVAL IN P2P NETWORK |
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| Zeng Yubin,Liu Guiquan. RESEARCH OF MULTI-KEYWORD BASED INFORMATION RETRIEVAL IN P2P NETWORK[J]. Computer Applications and Software, 2007, 24(8): 119-121 |
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| Authors: | Zeng Yubin Liu Guiquan |
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| Affiliation: | Department of Computer Science and Technology, USTC , Hefei 230027 ,Anhui , China |
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| Abstract: | P2P network has obtained great success in information resource-sharing,but the traditional P2P model can't give both consideration to the ability of multi-based information retrieval,and to the scalability that the system needs.A new P2P model is provided.The model introduces a 2D index space.It is split and organized by peers using DHT.The documents are mapped to some points in the index-space due to their content and IDs.The process of information retrieval is transformed to locate the special area in the index-space.Thus,the model is scalable and works well in multi-keyword based information retrieval. |
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| Keywords: | P2P Information retrieval Distributed hash table(DHT) |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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