States that resemble sleep-like cycles in simulated neural networks quell the instability that comes with uninterrupted self-learning in artificial analogs of brains
Watkins and her research team found that the network simulations became unstable after continuous periods of unsupervised learning. When they exposed the networks to states that are analogous to the waves that living brains experience during sleep, stability was restored. “It was as though we were giving the neural networks the equivalent of a good night’s rest,” said Watkins.
2020-07-25 Joseph A. Wulfsohn
“Do you sometimes — because I follow you on Twitter and I know I do this… do you ever tweet out and be like — you wake up and, ‘Aw man, I wish I didn’t send that one out’?” Portnoy asked.
“Often, too often,” Trump responded. “It used to be in the old days before this, you’d write a letter and you’d say this letter is very big. You put it on your desk and then you go back tomorrow and you say, ‘Oh, I’m glad I didn’t send it,’ right? But we don’t do that with Twitter, right? We put it out instantaneously, we feel great, and then you start getting phone calls — ‘Did you really say this?’ I say, ‘What’s wrong with that?’ and you find out a lot of things.”
2020-07-11 Black Lives Matter Foundation, Inc
We disrupt the Western-prescribed nuclear family structure requirement by supporting each other as extended families and “villages” that collectively care for one another, especially our children, to the degree that mothers, parents, and children are comfortable.
Wayback Machine copy:
What makes ships mysteriously slow down or even stop as they travel, even though their engines are working properly?
…In 1904, the Swedish physicist and oceanographer Vagn Walfrid Ekman showed in a laboratory that waves formed under the surface at the interface between the salt water and freshwater layers that form the upper portion of this area of the Arctic Ocean interact with the ship, generating drag.
This phenomenon, called dead water, is seen in all seas and oceans where waters of different densities (because of salinity or temperature) mix. It denotes two drag phenomena observed by scientists. The first, Nansen wave-making drag, causes a constant, abnormally low speed. The second, Ekman wave-making drag, is characterized by speed oscillations in the trapped boat. The cause of this was unknown.
2020-07-01 William Charles Louis and Richard G. Van de Water
The most likely solution was a new neutrino—a “sterile” neutrino, so called because it would not interact with other matter in any way except through gravity.
“It is physically impossible—as in, against the laws of physics—for triso to melt in a reactor,” says Sell. “And when you start with a reactor that can’t melt, your safety case completely changes.”
When police are revealed to have killed an unarmed suspect or used excessive force during arrest, police generally defend those actions. Cops who report wrongdoing are routinely ostracized as “rats” and denied promotions, according to a 1998 Human Rights Watch study. Researchers identify this so-called “blue wall of silence” – the refusal to “snitch” on other officers – as a defining feature of U.S. cop culture today.
U.S. military culture stresses organizational, rather than personal, loyalty.
And the pride Marines famously feel, for instance, comes from being part of this well-respected corps. Personal relationships with other Marines are of secondary importance.
2020-02-02 Raluca Budiu
Results showed that light mode won across all dimensions: irrespective of age [of the individual], the positive contrast polarity [light mode] was better for both visual-acuity tasks and for proofreading tasks.
2020-06-08 Chris Lee
Hydrogen, in low concentrations in a confined space, burns with a branching network instead of with a wide flame.
2020-05-29 Blender Animation Studio
Fueled by caffeine, a young woman runs through the bittersweet memories of her past relationship. Get the production files, assets, tutorials and exclusive making-of videos by joining Blender Cloud at https://cloud.blender.org/p/coffee-run