14/09/2015

How Amazon's Mechanical Turk is becoming a research tool

This spring, Chris Callison-Burch, Ph.D., was in town to share an unusual approach to machine learning. This is one of the hottest topics in computer science: It is behind everything from Google's self-driving cars to Apple's ...

Ancient campfires show early population numbers

Radio carbon data from prehistoric occupation sites are providing insights into Australia's fluctuating human population levels tens of thousands of years ago.

A more benign blue for pyrotechnics

Ludwig Maximilian University of Munich chemists have developed a novel pyrotechnic formulation that produces a blue flame of unprecedented purity and radiance upon combustion, and is free of the toxic chlorine-containing ...

Shocks in a distant gamma-ray burst

Gamma ray bursts (GRBs)—flashes of high-energy light occur about once a day, randomly, from around the sky—are the brightest events in the known universe. While a burst is underway, it is many millions of times brighter ...

Toshiba posts $102 mn quarterly loss as sales drop

Toshiba on Monday reported a first-quarter loss of $102 million after sales fell to a two-and-half-year low, in a fresh blow to the Japanese conglomerate after a huge accounting scandal.

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