Big data is a concept that deals with data sets of extreme volumes. Questions may tend to be related to infrastructure, algorithms, statistics, and data structures.

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This article is an effort to explore techniques used by developers of in-stream data processing systems, trace the connections of these techniques to massive batch processing and OLTP/OLAP databases, and discuss how one unified query engine can support in-stream, batch, and OLAP processing at the same time.


Here’s an overview of Spark, an open source framework for big data. With its exceptional performance characteristics, Spark is well-suited for use with machine learning systems. James McCaffrey shows how you can install and run it on a Windows machine.


Machine learning works spectacularly well, but mathematicians aren’t quite sure why.


Data science continues to generate excitement and yet real-world results can often disappoint business stakeholders. How can we mitigate risk and ensure results match expectations?


Data lakes are marketed as enterprise-wide data management platforms for analyzing disparate sources of data in its native format.