面向对等网信息语义共享的元数据模型框架研究

对等网系统作为一种新型的信息共享模式，往往缺乏对信息语义管理的支持。本文提出了一种基于对等网的信息资源语义共享系统框架，重点对其一体化元数据描述模型进行了设计，结合本体和对等网的相关特征对分布、异构信息资源的语义和相关管理元素进行了封装，并且从元数据知识库的构建、查询处理和信任机制几个方面介绍了元数据摸型的工作机制及关键问题。

Research on MetaData Model for Information Semantics Sharing in Peer-to-Peer Networks

Peer-to-Peer systems are a new paradigm for information sharing. It usually does not support information semantics management. In this paper, a semantics sharing architecture for information asset management based on Peerto-Peer network is presented. It focus on the design of the integrative metadata model. The metadata model combines the features of ontology with the features of Peer-to-Peer networks to encoding semantic information and related man- agement elements. Furthermore, the working mechanism and key problems of metadata model is introduced from the aspects of creating of metadata repository, query processing and trust mechanism.