Encyclopedia Of Data Warehousing And Mining

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Executive Summary

When a space shuttle takes off, tiny sensors measure thousands of data points every fraction of a second, pertaining to a variety of attributes like temperature, acceleration, pressure and velocity. A data gathering server at a networking company receives terabytes of data a day from various network elements like routers, reporting on traffic throughput, CPU usage, machine loads and performance. Each of these is an example of a data stream. Many applications of data streams arise naturally in industry (networking, e-commerce) and scientific fields (meteorology, rocketry).

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