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Collecting and analyzing information from simple cell phones can provide surprising insights into how people move about and behave—and even help us understand the spread of diseases.
Mobile phones are great sources of data—but we must be careful about privacy.
Data that shows where people live, work, and play is being sold to businesses and city planners, as mobile operators seek new sources of revenue.
The quest to gather ever more information can make us value the wrong things and grow overconfident about what we know.
Experiments suggest that monitoring viewer behavior via set-top boxes could help make TV commercials much more effective.
Prototype software can give early warnings of disease or violence outbreaks by spotting clues in news reports.
The e-commerce giant has the data that all advertisers want—what millions of people are shopping for—and now it plans to use it.
From Facebook to shale oil to MOOCs, the numbers told the tale.