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论文题目 |
P2P系统中基于Web的索引信息扩展算法的研究 |
论文题目(英文) |
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作者 |
尤佳莉 |
发表年度 |
2008 |
卷 |
44 |
期 |
18 |
页码 |
6-8+24 |
期刊名称 |
计算机工程与应用 |
摘要 |
基于环球网 (Web) 的特点和用户在点对点 (P2P) 系统中搜索的习惯, 提出了一个在 P2P 系统中对媒体文件自动生成索引的方法。该方法有效地解决了媒体文件描述符不足所带来的查询精度低的问题。同时, 提出了一个在P2P系统中节点信息的更新策略。实验表明, 描述符扩展后, 媒体文件查询结果的准确率得到了显著的提高。 关键词: 点对点; 环球网; 索引; 查询 |
摘要_英文 |
Based on the characters of Web and Peer- to- Peer (P2P systems an algorithm of auto- generating index of media files for P2P systems from Web is proposed.This method can efficiently solve the problem about lack of descriptors of media files,which causes the low recall and precision in key words searching.Besides, to satisfy the increasing information of Web and the changing popularities of people, an auto- updating strategy for peers is applied.From the experiments, it shows that this method can expand the describing information for media files and significantly improve the searching capacity of P2P systems. Key words:Peer- to- Peer; Web; index; search |
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