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	Ontology-based context-aware middleware for smart spaces
	Qin Weijun ; Shi Yuanchun ; Suo Yue
	2010-05-06 ; 2010-05-06
关键词	Practical Theoretical or Mathematical/ Bayes methods Internet middleware ontologies (artificial intelligence)/ ontology-based context-aware middleware smart spaces human-centric intelligent behavior agent-based middleware context acquisition formal context model first order probabilistic logic Web ontology language knowledge sharing context inference mechanism extended Bayesian network deductive reasoning context reasoning algorithm/ B6210L Computer communications B0240Z Other topics in statistics C5620W Other computer networks C1140Z Other topics in statistics C6170K Knowledge engineering techniques
中文摘要	Context-awareness enhances human-centric, intelligent behavior in a smart environment; however, context-awareness is not widely used due to the lack of effective infrastructure to support context-aware applications. This paper presents an agent-based middleware for providing context-aware services for smart spaces to afford effective support for context acquisition, representation, interpretation, and utilization to applications. The middleware uses a formal context model, which combines first order probabilistic logic (FOPL) and Web ontology language (OWL) ontologies, to provide a common understanding of contextual information to facilitate context modeling and reasoning about imperfect and ambiguous contextual information and to enable context knowledge sharing and reuse. A context inference mechanism based on an extended Bayesian network approach is used to enable automated reactive and deductive reasoning. The middleware is used in a case study in a smart classroom, and performance evaluation result shows that the context reasoning algorithm is good for non-time-critical applications and that the complexity is highly sensitive to the size of the context dataset.
语种	英语 ; 英语
出版者	Tsinghua University Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/9817]
专题	清华大学
推荐引用方式 GB/T 7714	Qin Weijun,Shi Yuanchun,Suo Yue. Ontology-based context-aware middleware for smart spaces[J],2010, 2010.
APA	Qin Weijun,Shi Yuanchun,&Suo Yue.(2010).Ontology-based context-aware middleware for smart spaces..
MLA	Qin Weijun,et al."Ontology-based context-aware middleware for smart spaces".(2010).

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