摘要
受心理学激活-扩散模型的启发,提出了在领域本体基础上的用户认知结构模型。该模型依据用户提供的认知中心,一方面,根据领域本体中概念之间的语义相关性推导出用户的认知范围;另一方面,根据概念之间的语义相关度刻画出用户的认知深度。从认知范围和认知深度两方面,描述用户对某领域知识的认知结构。实验结果表明,该模型与通用本体模型相比。
It proposes a model to get user＇s individual cognitive structure. It is inspired by the spreading-activation model of psychology and is built on the domain ontology. According to cognitive center which is provided by the user and semantic association between some concepts, this model can not only infer to user cognitive range, but also inscribe user cognitive depth. The experimental results show that this model is more accurate than the normal Ontology model.
出处
《微型机与应用》
2011年第13期88-91,共4页
Microcomputer & Its Applications
基金
国家科技重大专项资助项目(2008ZX05039-004)
关键词
认知结构
激活扩散模型
认知广度
认知深度
个性化检索
cognitive structure
spreading-activation model
cognitive range
cognitive depth,
personalized information retrieval
