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Category: information science

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Researchers have developed a new technology that can help read brain signals directly and may also aid people with movement disabilities to better communicate their thoughts and emotions. The technology involves a multi-electrode array implanted in the brain to directly read signals from a region that ordinarily directs hand and arm movements used, for example, to move a computer mouse.

The algorithms translate those signals and help to make letter selections.

“Our results demonstrate that this interface may have great promise for use in people as it enables a typing rate sufficient for a meaningful conversation,” said Paul Nuyujukian, postdoctoral student at Stanford University in California, US.

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Read a little further into the paper, and things get really weird. If the equations of quantum mechanics must be altered in accordance with the new research, then it will give rise to a new and very curious definition of time.

Time is, essentially, a “crystal”—a highly organized lattice of discrete “particles,” or regularly repeating segments.

“The physical universe is really like a movie/motion picture, in which a series of still images shown on a screen creates the illusion of moving images,” said Mir Faizal of the University of Waterloo and the University of Lethbridge in Canada, and lead author of the paper.

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In recent years, it’s been exciting watching advances in AI like IBM’s Watson smashing humans at Jeopardy and Google’s AlphaGo AI beating champions at the game of Go a decade earlier than expected. But the sophisticated algorithms under the hood are really the stars of the show.

These powerful computing systems are fundamentally changing industries and automating a growing number of day-to-day tasks. At the same time, AI still isn’t perfect, and we’ve seen hints of its potential dark side. Our algorithms are only as good as the data we feed them. And there’s been a spirited debate about existential dangers down the road.

Here’s a look into some of the topics leading the dialogue as AI technology evolves into its next generation.

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We illustrate how it is possible to calculate the quantum gravitational effects on the spectra of primordial scalar/tensor perturbations starting from the canonical, Wheeler-De Witt, approach to quantum cosmology. The composite matter-gravity system is analysed through a Born-Oppenheimer approach in which gravitation is associated with the heavy degrees of freedom and matter (here represented by a scalar field) with the light ones. Once the independent degrees of freedom are identified the system is canonically quantised. The differential equation governing the dynamics of the primordial spectra with its quantum-gravitational corrections is then obtained and is applied to diverse inflationary evolutions. Finally, the analytical results are compared to observations through a Monte Carlo Markov Chain technique and an estimate of the free parameters of our approach is finally presented and the results obtained are compared with previous ones.

Read this paper on arXiv…

A. Kamenshchik, A. Tronconi and G. Venturi Tue, 13 Sep 16 11/91.

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Amazing — fighting cancer with a new drug that self-assembles from individual cells that interact with each other into a complex structure through weak supramolecular interactions.

The first multicellular organism, Volvox, evolved from self-assembly of individual cells. Inspired by this organism, researchers from Brigham and Women’s Hospital have developed a novel approach for treating cancer. Drawing from the lessons of evolution, they designed anti-cancer molecules that can self-assemble with each other into a complex structure through weak supramolecular interactions. The complex, supramolecular therapeutics home into the tumor, increasing anticancer efficacy and reducing side effects.

To engineer the supramolecular therapeutics, the researchers developed a first-of-its-kind computational algorithm that simulates how anticancer molecules interact with each other at the molecular and atomic level. This understanding led to the design of the most optimal building blocks that can click with each other like LEGO blocks to form the supramolecular therapeutic. The researchers have named this computational algorithm Volvox after the biological organism.

Ashish Kulkarni, PhD, an instructor in the Division of Engineering in the Department of Medicine at the Brigham and Women’s Hospital, and the lead author of the paper published in September issue of ACS Nano, said, “The algorithm saves a lot of time during the development of next generation cancer therapy. Before we even go into experimental analysis, we are able to see whether or not there is a high enough concentration of the drug for the treatment to be effective. We hope that our method can eventually be used to treat many different types of cancer.”

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For vessels operating at sea, avoiding collisions is a basic operational requirement. When those vessels are operated by humans, collision avoidance is part of basic operator training. And when those vessels become highly autonomous, collision avoidance must be incorporated into complex autonomy algorithms that must be thoroughly tested before the vessels enter the water.

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Most people might not drool over Oppo phones, but they’re going to get a feature that might get those salivary glands pumping. This morning at Mobile World Congress, the company showed off its new SuperVOOC quick-charging technology. If real-world results are as promising as they say, Oppo fans will be able to fully charge some of their devices in 15 minutes. No, seriously.

Oppo says that’s about how much time it’ll take to charge a dead 2,500mAh battery to 100 percent, and that the technology will work over traditional micro-USB and USB Type-C cables. That’s even faster than what we’ve seen out of Qualcomm’s most recent Quick Charge 3.0 demos — the fast-charging technology baked into chipsets like the Snapdragon 820 can get a smartphone from bone-dry to 80 percent in around 35 minutes. Of course, it’s sort of no surprise that Oppo can squeeze better performance out of their system — it’s more or less proprietary Oppo, so the company has full control over the battery, silicon and software involved. That’s the sort of end-to-end control that helped Huawei figure out how to supercharge smartphones, too.

In some cases, you’ll be able to get a full charge in less than 15 minutes. An Oppo hype man plugged a metal-encased reference device into a charger and continued his spiel in Mandarin. Less than ten minutes later — after he discussed an algorithm that varies current to maximize charging efficiency while keeping temperatures low — the phone was back up to 100 percent. Our natural skeptics can’t help suspect this was just a staged demo for the show, so here’s hoping we soon get to test a SuperVOOC phone for ourselves.

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MIT has used machine learning to create video from still images, and the results are pretty impressive. As you can see from the above image, there’s a lot of natural form to the movement in the videos.

The system “learns” types of videos (beach, baby, golf swing…) and, starting from still images, replicates the movements that are most commonly seen in those videos. So the beach video looks like it has crashing waves, for instance.

But like other machine-generated images, these have limitations. The first is size: what you see above is the extent to which the program can render its video. Length is also an issue: only about a second of video gets produced.

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Brain is the new product from Jerry Yue which is based on Advanced algorithm. According to Yue, Brain will work as a personal virtual assistant for each user by having users input not just a profile of who they are, but what they do, and what they want to do in the future.

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