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Hacker took pains to hide $3.36B of stolen bitcoin. Feds found it anyway

Enlarge / Bitcoin laundering concept vector illustration. Federal prosecutors have recovered $3.36 billion in bitcoin that was stolen a decade ago from Silk Road, the dark web bazaar responsible for distributing massive quantities of illegal drugs and other illicit goods and services to people worldwide. Last November, federal agents executing a search warrant on a...

New Go-playing trick defeats world-class Go AI—but loses to human amateurs
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New Go-playing trick defeats world-class Go AI—but loses to human amateurs

Enlarge / Go pieces and a rulebook on a Go board. (credit: Getty Images) In the world of deep-learning AI, the ancient board game Go looms large. Until 2016, the best human Go player could still defeat the strongest Go-playing AI. That changed with DeepMind’s AlphaGo, which used deep-learning neural networks to teach itself the...

Algorithms quietly run the city of DC—and maybe your hometown
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Algorithms quietly run the city of DC—and maybe your hometown

Enlarge (credit: Dmitry Marchenko/Getty Images) Washington, DC, is the home base of the most powerful government on earth. It’s also home to 690,000 people—and 29 obscure algorithms that shape their lives. City agencies use automation to screen housing applicants, predict criminal recidivism, identify food assistance fraud, determine if a high schooler is likely to drop...