关键词: P2P, 本体, 社区组织

Abstract: How to organize and manage large amount of electro-information and how to provide information to users quickly and accurately are the key problems in P2P system.This paper tries to use ontology as a tool to build a concept model that describes information in both knowledge and semantic level.Community organization algorithms are proposed in this paper.The algorithms also support dynamic communities.They can form a sharing concept model and get the users to gain satisfying results.

Key words: P2P, ontology, community organization