Real-time Analytics
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Streaming data are data transmitted by a source to a host computer immediately after being produced. The intent of real-time data analytics is to analyze the data as they are received and at a rate sufficiently fast to keep up with the stream. Analyses of streaming data center about characterizing the current level of the data-generating process, forecasting future values, and determining whether the process is undergoing unexpected change. In this chapter, we focus on computational aspects of real-time analytics. Methods were discussed in Chap. 11 The tutorials guide the reader through the analysis of data streams originating from two public and very different sources: tweets originating from the Twitter API and stock quotations originating from the NASDAQ.
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