'Spectrum crunch' may slow US mobile revolution

The United States is bracing for a data crunch from the surging use of smartphones, tablets and other mobile devices as the explosion of Internet-ready devices eats up the radio spectrum allocated for mobile broadband.

Beyond economic metrics: The Gini index in the big data age

Inequality among people has become an increasingly salient issue globally, with data indicating a rise in inequality levels across many countries in recent years. This, in turn, has generated concerns both from the perspective ...

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