By John Markoff
In a speech given just a few weeks before he was lost at sea off the California coast in January 2007, Jim Gray, a database software pioneer and a Microsoft researcher, sketched out an argument that computing was fundamentally transforming the practice of science.
Dr. Gray called the shift a “fourth paradigm.” The first three paradigms were experimental, theoretical and, more recently, computational science. He explained this paradigm as an evolving era in which an “exaflood” of observational data was threatening to overwhelm scientists. The only way to cope with it, he argued, was a new generation of scientific computing tools to manage, visualize and analyze the data flood.
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