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| P2P信息检索及其优化策略 | |
| 引用本文： | 凌波,吕永成,周水庚,周傲英,NG Wee-Siong.P2P信息检索及其优化策略[J].计算机科学,2006,33(8):173-177. |
| 作者姓名： | 凌波 吕永成 周水庚 周傲英 NG Wee-Siong |
| 作者单位： | 1. 中国浦东干部学院信息技术部,上海201204 2. 广西大学信息与系统工程研究所,南宁530005 3. 复旦大学计算机科学与工程系,上海200433 4. 新加坡国立大学计算机学院,新加坡117543 |
| 基金项目： | 中国浦东干部学院校科研和教改项目;国家自然科学基金 |
| 摘 要： | 本文研究对等计算（P2P）环境中语义丰富的信息检索及其优化策略，提出了P2P信息检索系统（PIRS），实现了P2P环境中语义丰富的信息检索，定义了一套评价PIRS效率的指标体系；明确了决定PIRS效率的关键因素并提出相应的解决策略，包括：基于向量空间模型的节点数据分类管理策略、基于节点聚类的系统数据管理策略以及自适应查询路由策略，并用实验结果验证了这些策略的有效性。 |
| 关 键 词： | 对等计算 信息检索 优化策略 |
Peer-to-Peer Based Information Retrieval and its Optimization Strategies |
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| LING Bo,LU Yong-Cheng,ZHOU Shui-Geng,ZHOU Ao-Ying,NG Wee-Siong.Peer-to-Peer Based Information Retrieval and its Optimization Strategies[J].Computer Science,2006,33(8):173-177. | |
| Authors: | LING Bo LU Yong-Cheng ZHOU Shui-Geng ZHOU Ao-Ying NG Wee-Siong |
| Abstract: | This paper investigates the ideology and key issues of efficient semantic information retrieval in peer-to-peer(P2P) environment. First, the concept of P2P-based information retrieval is proposed, by integrating information retrieval technique with P2P to achieve semantic retrieving and sharing in P2P systems. Second, a set of metrics to evaluate the efficiency of such sort of system is developed, while the key issues deciding efficiency is identified. Following that, three optimization strategies is devised. And finally, an extensive experimental study is conducted, whose results are promising. |
| Keywords: | Peer-to-Peer computing Information retrieval Optimization strategies |
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