摘要
提出了基于结构化P2P网络路由机制的两级语义覆盖网络结构TSS-SON.该结构根据资源主题将节点组织成主题区域,在同一主题区域内,采用基于语义相似度机制进行群的划分.该结构充分利用了结构化P2P网络的优点,解决了基于非结构化P2P网络建立的语义覆盖网络对主题群的搜索低效问题,同时克服了结构化P2P网络仅支持精确匹配查找的缺点,实现了可靠、高效的语义查询,并极大地提高了查全率.
A two-stage structured semantic overlay network （TSS-SON） structure based on structured P2P routing mechanism and topic partition was presented. By assigning nodeid and key according to the topic, TSS-SON collected the nodes with similar topic into a zone. And within a zone, it divided nodes into clusters based on the semantic similar mechanism. Compared with the semantic overlay network based on unstructured P2P network, this structure provides more efficient search for topic cluster. At the same time, it provides the structured P2P network with effective approach to searching for content based on complicated queries, and it realizes the semantic search and dramatically increases the search recall.
出处
《高技术通讯》
CAS
CSCD
北大核心
2007年第7期693-697,共5页
Chinese High Technology Letters
基金
863计划（2005AA121210）资助项目.
关键词
语义覆盖网络
结构化P2P网络
主题区域
群
semantic overlay network, structured P2P network, topic zone, cluster
