Download PDF by Waltenegus Dargie: Context-Aware Computing and Self-Managing Systems (Chapman &

By Waltenegus Dargie

Bringing jointly an largely researched sector with an rising study factor, Context-Aware Computing and Self-Managing platforms offers the center contributions of context-aware computing within the improvement of self-managing structures, together with units, purposes, middleware, and networks. The professional participants exhibit the usefulness of context-aware computing in constructing independent platforms that experience useful software within the actual international. the 1st bankruptcy of the booklet identifies beneficial properties which are universal to either context-aware computing and self reliant computing. It bargains a uncomplicated definition of context-awareness, covers basic facets of self-managing structures, and gives a number of examples of context details and self-managing platforms. next chapters on context-awareness exhibit how a context might be hired to make platforms shrewdpermanent, how a context will be captured and represented, and the way dynamic binding of context assets might be attainable. The chapters on self-management illustrate the necessity for "implicit wisdom" to improve fault-tolerant and self-protective platforms. additionally they current a higher-level imaginative and prescient of destiny large-scale networks. via quite a few examples, this e-book indicates how context-aware computing can be utilized in lots of self-managing structures. It allows researchers of context-aware computing to spot power purposes within the region of self sufficient computing. The textual content additionally helps researchers of self sufficient computing in defining, modeling, and taking pictures dynamic features of self-managing platforms.

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Wu applies Dempster-Schafer’s theory of evidence to deal with uncertainty associated with context sensing. In his implementation, an Aggregator receives video and audio features from a camera and a set of microphone widgets to determine the likelihood of a participant’s focus of attention in a meeting. The application scenario comprises a small round table in a small meeting room, where a few people sitting around the table participate in a discussion. An omni-directional camera at the center of the table captures the activities of the participants, while a microphone in front of each participant measures relative sound strength.

Dey. Providing architectural support for building context-aware applications. PhD thesis, Georgia Institute of Technology, 2000. [15] J. M¨ antyj¨ arvi, J. Himberg, and P. Huuskonen. Collaborative context recognition for handheld devices. In In Proceedings of the 1st IEEE international Conference on Pervasive Computing and Communications, 2003. 14 Context-Aware Computing and Self-Managing Systems [16] A. Chen, R. Muntz, S. Yuen, I. Locher, S. Park, and M. Srivastava. A support infrastructure for the smart kindergarten.

Context and Self-Management 9 The prior knowledge along with the representation of the scene presented by the vision module is supplied to a Bayesian network inside the interpretation module to recognize hierarchically all the occurrences of states, events, and scenarios, which signify human activities. Over 600 frames were used to train the network to recognized violent behaviors such as people fighting or show some pronounced agitation. 80% of the frames contain anticipated behaviour (violence) while the remaining 20% were spurious (no violence).

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