A Web-based nomadic computing system
Computer Networks: The International Journal of Computer and Telecommunications Networking - pervasive computing
Modeling Context Information in Pervasive Computing Systems
Pervasive '02 Proceedings of the First International Conference on Pervasive Computing
Intelligent Agents Meet the Semantic Web in Smart Spaces
IEEE Internet Computing
Toward an OSGi-Based Infrastructure for Context-Aware Applications
IEEE Pervasive Computing
Human-Computer Interaction
An infrastructure approach to context-aware computing
Human-Computer Interaction
A middleware for context-aware agents in ubiquitous computing environments
Proceedings of the ACM/IFIP/USENIX 2003 International Conference on Middleware
Ubi-UCAM: a unified context-aware application model
CONTEXT'03 Proceedings of the 4th international and interdisciplinary conference on Modeling and using context
Modeling wireless sensor networks based context-aware emergency coordination systems
Proceedings of the 10th International Conference on Information Integration and Web-based Applications & Services
Partial constraint checking for context consistency in pervasive computing
ACM Transactions on Software Engineering and Methodology (TOSEM)
Context consistency management using ontology based model
EDBT'06 Proceedings of the 2006 international conference on Current Trends in Database Technology
| Hi-index | 0.00 |
With diverse sensors, context-aware applications which aim at decreasing people’s attentions to computational devices are becoming more and more popular. But it is inadequate just with sensors because what applications really need is high-level context knowledge rather than low-level raw sensor data. So a software layer which delivers high quality contexts to applications with an easy application programming model is needed. In this paper, we establish a formal context model using semantic web languages and design a context fusion mechanism which not only generates high-level contexts by reasoning, but also brings in context lifecycle management and periodically time based conflict resolution to improve the quality of contexts. Using the context fusion mechanism, a programmable and service oriented middleware is built upon OSGi framework to support context-aware applications. Also, we propose an application programming model using RDQL as context query language and demonstrate an application called Seminar Assistant. According to the experiment results, we believe our prototype system is useful for non-real-time applications in various domains.