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A Semantic-Based Framework for Processing Complex Events in Multimedia Sensor Networks.

Abstract : The dramatic advancement of low-cost hardware technology, wireless communications, and digital electronics have fostered the development of multifunctional (wireless) Multimedia Sensor Networks (MSNs). Those latter are composed of interconnected devices able to ubiquitously sense multimedia content (video, image, audio, etc.) from the environment. Thanks to their interesting features, MSNs have gained increasing attention in recent years from both academic and industrial sectors and have been adopted in wide range of application domains (such as smart home, smart office, smart city, to mention a few). One of the advantages of adopting MSNs is the fact that data gathered from related sensors contains rich semantic information (in comparison with using solely scalar sensors) which allows to detect complex events and copes better with application domain requirements. However, modeling and detecting events in MSNs remain a difficult task to carry out because translating all gathered multimedia data into events is not straightforward and challenging.In this thesis, a full-fledged framework for processing complex events in MSNs is proposed to avoid hard-coded algorithms. The framework is called Complex Event Modeling and Detection (CEMiD) framework. Core components of the framework are:• MSSN-Onto: a newly proposed ontology for modeling MSNs, • CEMiD-Language: an original language for modeling multimedia sensor networks and events to be detected, and • GST-CEMiD: a semantic pipelining-based complex event processing engine. CEMiD framework helps users model their own sensor network infrastructure and events to be detected through CEMiD language. The detection engine of the framework takes all the model provided by users to initiate an event detection pipeline for extracting multimedia data feature, translating semantic information, and interpret into events automatically. Our framework is validated by means of prototyping and simulations. The results show that our framework can properly detect complex multimedia events in a high work-load scenario (with average detection latency for less than one second).
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Chinnapong Angsuchotmetee. A Semantic-Based Framework for Processing Complex Events in Multimedia Sensor Networks.. Computer Science [cs]. Université de Pau et des Pays de l'Adour, 2017. English. ⟨tel-02470779⟩

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