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Big Data Requires New Techniques for Knowledge Discovery

Erica Naone writes that today’s big data is forcing researchers to find new techniques for knowledge discovery and data mining.

Today’s data, however, doesn’t take the familiar form of the database. “The information’s not coming at you in a clean tabular form,” Apte says. “It’s coming at you in a network form.” Often it arrives in a graph, he explains—such as those used by social media. These graphs often record not only the complex connections between nodes but also other types of information in a diversity of formats, such as the videos, images, and comments that people post on social networks.

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