中文摘要：

提出一种基于移动代理技术的类应用层组播的搜索引擎模型．通过对模型的仿真，证明这种搜索引擎模型在完成任务所需时间和网络负载方面具有较好的性能改善，非常适合搜索引擎的设计和实现。

英文摘要：

Search engine is the key in searching network resource. This paper proposes a search engine model based on the mobile agent technique and application layer multicast. Network simulations show that this model has better performance in terms of total search time and network load. It is suitable for designing and implementating search engine.