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电子学报  2012 

分布式情境感知分层模型设计与角色分析

DOI: 10.3969/j.issn.0372-2112.2012.08.012, PP. 1572-1576

Keywords: 情境感知,分层模型,感知主动性

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Abstract:

情境感知是普适计算环境的本质特征之一.本文提出了一种面向分布式情境感知的分层模型,通过情境资源的空间划分,刻画了传感器到情境知识的逐层抽象的特质.同时,分层模型对情境感知系统中的角色及角色间的关系进行了有效规约.本文通过与经典的ContextToolkit模型比较,证明了分层模型的运行时负载低的优点;通过模型的主动性分析,验证了情境感知主动性对系统数据收发负载的正反比影响.分层模型将在分布式情境感知系统部署和配置中发挥重要作用.

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