By BeauHD from
Slashdot's NASA-budget department:
If President Obama's recently released federal budget request is approved for the fiscal year beginning Oct. 1, 2016, next year will be the first in a bold 10-year plan by NASA Aeronautics to achieve huge goals in reducing fuel use, emissions, and noise by the way aircraft are designed, and the way they operate in the air and on the ground. One exciting piece of this 10-year plan is New Aviation Horizons -- an ambitious undertaking by NASA to design, build and fly a variety of flight demonstration vehicles, or "X-planes." The demos included advancements in lightweight composite materials that are needed to create revolutionary aircraft structures, an advanced fan design to improve propulsion and reduce noise in jet engines, designs to reduce noise from wing flaps and landing gear, and shape-changing wing flaps, and even coating to prevent bug residue buildup on wings.
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By BeauHD from
Slashdot's theory-of-gravity department:
The researchers, from the University of Cambridge and Queen Mary University of London, have successfully simulated a black hole shaped like a very thin ring, which gives rise to a series of 'bulges' connected by strings that become thinner over time. Ring-shaped black holes were 'discovered' by theoretical physicists in 2002, but this is the first time that their dynamics have been successfully simulated using supercomputers. Should this type of black hole form, it would lead to the appearance of a 'naked singularity', which would cause the equations behind general relativity to break down. "If naked singularities exist, general relativity breaks down," said co-author Saran Tunyasuvunakool, also a PhD student from DAMTP. "And if general relativity breaks down, it would throw everything upside down, because it would no longer have any predictive power -- it could no longer be considered as a standalone theory to explain the universe."
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By BeauHD from
Slashdot's how-to-be-a-human department:
Mark Riedl and Brent Harrison from the School of Interactive Computing at the Georgia Institute of Technology have just unveiled Quixote, a prototype system that is able to learn social conventions from simple stories. Or, as they put in their paper Using Stories to Teach Human Values to Artificial Agents, revealed at the AAAI-16 Conference in Phoenix, Arizona this week, the stories are used "to generate a value-aligned reward signal for reinforcement learning agents that prevents psychotic-appearing behavior." "The AI ... runs many thousands of virtual simulations in which it tries out different things and gets rewarded every time it does an action similar to something in the story," said Riedl, associate professor and director of the Entertainment Intelligence Lab. "Over time, the AI learns to prefer doing certain things and avoiding doing certain other things. We find that Quixote can learn how to perform a task the same way humans tend to do it. This is significant because if an AI were given the goal of simply returning home with a drug, it might steal the drug because that takes the fewest actions and uses the fewest resources. The point being that the standard metrics for success (eg, efficiency) are not socially best." Quixote has not learned the lesson of "do not steal," Riedl says, but "simply prefers to not steal after reading and emulating the stories it was provided."
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By BeauHD from
Slashdot's closed-in-a-flurry department:
mikejuk writes: In its recent earnings call, Yahoo revealed plans to cut its workforce by 15% -- around 1,600 employees by the end of the year. Yahoo Labs is another victim of the cuts as revealed in a Tumbler post by Yoelle Maarek who reports that both Yahoo's Chief Scientist, Ron Brachman, and VP of Research Ricardo Baeza-Yates, will be leaving the company and that going forward: Our new approach is to integrate research teams directly into our product teams in order to produce innovation that will drive excellence in those product areas. We will also have an independent research team that will work autonomously or in partnership with product partners. The integrated and independent teams, as a whole, will be known as Yahoo Research. Maarek, formerly VP of Research now becomes leader of Yahoo Research. To anyone who has followed the story of research at Yahoo there will be a sense of deja vu. Back in 2012 Yahoo laid off many of its research team, many of whom found a new home with Microsoft. It was Marissa Meyer who in the following year recruited a substantial number of PhDs to Yahoo Labs which initiated some interesting projects. Meyer clearly thought research would save Yahoo!, but now it all seems a bit late and Yahoo! can't save its research lab.
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