Art gallery theorems and algorithms
Art gallery theorems and algorithms
The Power of Events: An Introduction to Complex Event Processing in Distributed Enterprise Systems
The Power of Events: An Introduction to Complex Event Processing in Distributed Enterprise Systems
Sensor-assisted wi-fi indoor location system for adapting to environmental dynamics
MSWiM '05 Proceedings of the 8th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems
Fault-tolerant target localization in sensor networks
EURASIP Journal on Wireless Communications and Networking
Recognising activities of daily life using hierarchical plans
EuroSSC'07 Proceedings of the 2nd European conference on Smart sensing and context
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The aim of our complex event processing system, CommonSens, is to simplify the application programmers' tasks by abstracting away from any particular sensor installation. Queries only need to refer to capabilities and locations of interest. In order to detect spatial events, CommonSens identifies the sensors that cover the specific locations where the spatial events should occur. This requires calculating how the coverage areas of sensors are affected by the environment. CommonSens promotes the use of heterogeneous multimodal sensors to reduce the probability of errors. It calculates the probability of false positives related to locations of interest and assists the application programmer with placing sensors in the environment effectively. We demonstrate through a series of experiments the functional properties of CommonSens related to these spatial issues. Furthermore, our experiments show that our non-optimised prototype is able to process all sensor readings and detect complex events in real-time.