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Context-Aware Publish-Subscribe: Model, Implementation, and Evaluation

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Executive Summary

Complex communication patterns often need to take into account the situation in which the information to be communicated is produced or consumed. Publish-subscribe, and particularly its content-based incarnation, is often used to convey this information by encoding the "Context" of the publisher into the published messages. In this paper, the authors claim that this approach is limiting and inefficient and propose a context-aware publish-subscribe model of communication as a better alternative. They describe a protocol that implements such model in a distributed publish-subscribe middleware, and analyze how it performs w.r.t. traditional content-based routing.

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