Abstract
This chapter offers a brief introduction to continuous query evaluation over streaming and distributed data. The motivations behind the research question are illustrated through some examples from Social Media and industrial IoT. They explain the need of combining streaming data with distributed data on the Web in order to answer queries. The aim of this study is to overcome the problem of responding to the queries in a timely fashion in the proposed setting. This research considers different classes of queries and proposes a framework and various algorithms to generate relevant results. This chapter describes the main contributions of the work and focuses on the research questions and the approach followed during the research study. Finally, the layout of the book is presented.
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Notes
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A program is reactive if it maintains a continuous interaction with its environment, but at a speed which is determined by the environment, not by the program itself [1]. Real-time programs are reactive, but reactive programs can be non real-time as far as they provide result in time to successfully interact with the environment.
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Zahmatkesh, S., Della Valle, E. (2020). Introduction. In: Relevant Query Answering over Streaming and Distributed Data. SpringerBriefs in Applied Sciences and Technology(). Springer, Cham. https://doi.org/10.1007/978-3-030-38339-8_1
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DOI: https://doi.org/10.1007/978-3-030-38339-8_1
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