摘要
信息服务目前依然是一个研究热点。提出了基于语义关联的信息聚焦概念及数学模型。信息聚焦作为一种新的信息服务方式,利用信息之间的语义关联关系实现信息汇聚。首先给出了基于本体的元数模型以及信息、信息空间的数学模型和信息聚焦的数学描述,并在此基础上提出了基于本体的语义相关及信息聚焦的形式化描述。
Information Service is still a hot topic for information sharing research.This paper presented the concept and mathematics model of semantic relatedness based information focusing.Information focusing,as a new information ser-vice,implements information congregating by using the semantic association relationship between information units.This paper presented the Ontology-based metadata model,and gave mathematics model of information and information space,and presented the mathematics about information focusing.By giving the formally definition of semantic relatedness,this paper also defined the concept of information focusing based semantic relatedness.
出处
《计算机科学》
CSCD
北大核心
2011年第8期185-188,共4页
Computer Science
关键词
信息空间
信息聚焦
本体
语义相关
Information space
Information focusing
Ontology
Semantic relatedness
