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Erik Bollen, Bart Kuijpers, Valeria Soliani and Alejandro Vaisman
Sensor networks are used in an increasing number and variety of application areas, like traffic control or river monitoring. Sensors in these networks measure parameters of interest defined by domain experts and send these measurements to a central locat...
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Erik Bollen, Rik Hendrix, Bart Kuijpers, Valeria Soliani and Alejandro Vaisman
Transportation networks are used in many application areas, like traffic control or river monitoring. For this purpose, sensors are placed in strategic points in the network and they send their data to a central location for storage, viewing and analysis...
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Erik Bollen, Rik Hendrix, Bart Kuijpers and Alejandro Vaisman
In this paper, we propose a formalism to query transportation networks that are equipped with sensors that produce time-series data. The core of the proposed query mechanism is a logic-based language that is capable to return time, value, and time-series...
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Bart Kuijpers, Bart Moelans, Walied Othman and Alejandro Vaisman
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