Archive for the ‘computing’ category: Page 808
Apr 1, 2016
Brainstorming New Ways To Test If Cosmos Is One Big Computer Simulation
Posted by Bruce Dorminey in categories: computing, space
Blast from the past. Someone in an astrobiology group seemed to question the validity of the question in my recent story on 5 Questions For E.T. about whether the universe is artificial. Here’s my response:
In the dog days of summer, when a gush of hot air from a Fifth Avenue subway grate can feel as real as it gets, take heart that the downtown traffic nipping at your heels may just be part of a cosmic-scale computer simulation.
The idea that the cosmos and everything in it could be a super-advanced civilization’s version of Xbox first came to the fore a little over a decade ago.
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Apr 1, 2016
Artificial intelligence steals money from banking customers
Posted by Aleksandar Vukovic in categories: computing, economics, humor, robotics/AI
However, Rob Ott, a computer scientist at Stanford University in Palo Alto, California, who did work on the system—Deep Learning Interface for Accounting (DELIA)—notes that it simply held all of the missing money, some $40,120.16, in a “rainy day” account. “I don’t think you can attribute malice,” he says. “I’m sure DELIA was going to give the money back.”
Technologists shocked by program’s ability to set its own priorities—such as getting rich.
Apr 1, 2016
This neural network ‘hallucinates’ the right colors into black and white pictures
Posted by Shailesh Prasad in categories: computing, neuroscience, robotics/AI
The machine overlords of the future may now, if it pleases them, eliminate all black and white imagery from the history of their meat-based former masters. All they’ll need is this system from Berkeley computer scientist Richard Zhang, which allows a soulless silicon sentience to “hallucinate” colors into any monochrome image.
It uses what’s called a convolutional neural network (several, actually) — a type of computer vision system that mimics low-level visual systems in our own brains in order to perceive patterns and categorize objects. Google’s DeepDream is probably the most well-known example of one. Trained by examining millions of images of— well, just about everything, Zhang’s system of CNNs recognizes things in black and white photos and colors them the way it thinks they ought to be.
Grass, for instance, has certain features — textures, common locations in images, certain other things often found on or near it. And grass is usually green, right? So when the network thinks it recognizes grass, it colors that region green. The same thing occurs for recognizing certain types of butterflies, building materials, flowers, the nose of a certain breed of dog and so on.
Apr 1, 2016
Successfully Engineering Water-loving Nanoparticle Diodes
Posted by Shailesh Prasad in categories: computing, electronics, engineering
Nanoparticle diodes and devices that work when wet.
“Groundbreaking” research by Prof. Bartosz Grzybowski (School of Natural Science).
Nanoparticle Diodes and Devices That Work When Wet.
A new study by an international team of researchers, affiliated with UNIST has found a new way to produce electronic devices, such as diodes, logic gates, and sensors without the need of semiconductors.
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Apr 1, 2016
A programming language for living cells
Posted by Shailesh Prasad in categories: biotech/medical, computing, engineering
MIT biological engineers have created a programming language that allows them to rapidly design complex, DNA-encoded circuits that give new functions to living cells.
Using this language, anyone can write a program for the function they want, such as detecting and responding to certain environmental conditions. They can then generate a DNA sequence that will achieve it.
“It is literally a programming language for bacteria,” says Christopher Voigt, an MIT professor of biological engineering. “You use a text-based language, just like you’re programming a computer. Then you take that text and you compile it and it turns it into a DNA sequence that you put into the cell, and the circuit runs inside the cell.”
Mar 31, 2016
Is the black hole at our galaxy’s centre a quantum computer? – Sabine Hossenfelder Essays
Posted by Andreas Matt in categories: computing, cosmology, quantum physics
Black-hole computing.
Might nature’s bottomless pits actually be ultra-efficient quantum computers? That could explain why data never dies.
Mar 31, 2016
An Update on fast Transit Routing with Transfer Patterns | Google Research Blog
Posted by Odette Bohr Dienel in categories: automation, big data, business, complex systems, computing, economics, engineering, environmental, transportation
“What is the best way to get from A to B by public transit? Google Maps is answering such queries for over 20,000 cities and towns in over 70 countries around the world, including large metro areas like New York, São Paulo or Moscow, and some complete countries, such as Japan or Great Britain.”
Mar 30, 2016
Second quantum revolution a reality with chip-based atomic physics
Posted by Klaus Baldauf in categories: computing, engineering, particle physics, quantum physics
A University of Oklahoma-led team of physicists believes chip-based atomic physics holds promise to make the second quantum revolution—the engineering of quantum matter with arbitrary precision—a reality. With recent technological advances in fabrication and trapping, hybrid quantum systems are emerging as ideal platforms for a diverse range of studies in quantum control, quantum simulation and computing.
James P. Shaffer, professor in the Homer L. Dodge Department of Physics and Astronomy, OU College of Arts and Sciences; Jon Sedlacek, OU graduate student; and a team from the University of Nevada, Western Washington University, The United States Naval Academy, Sandia National Laboratories and Harvard-Smithsonian Center for Astrophysics, have published research important for integrating Rydberg atoms into hybrid quantum systems and the fundamental study of atom–surface interactions, as well as applications for electrons bound to a 2D surface.
“A convenient surface for application in hybrid quantum systems is quartz because of its extensive use in the semiconductor and optics industries,” Sedlacek said. “The surface has been the subject of recent interest as a result of it stability and low surface energy. Mitigating electric fields near ‘trapping’ surfaces is the holy grail for realizing hybrid quantum systems,” added Hossein Sadeghpour, director of the Institute for Theoretical Atomic Molecular and Optical Physics, Harvard-Smithsonian Center for Astrophysics.
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Mar 30, 2016
Quantum computing with single photons getting closer to reality
Posted by Andreas Matt in categories: computing, quantum physics
(Phys.org)—One promising approach for scalable quantum computing is to use an all-optical architecture, in which the qubits are represented by photons and manipulated by mirrors and beam splitters. So far, researchers have demonstrated this method, called Linear Optical Quantum Computing, on a very small scale by performing operations using just a few photons. In an attempt to scale up this method to larger numbers of photons, researchers in a new study have developed a way to fully integrate single-photon sources inside optical circuits, creating integrated quantum circuits that may allow for scalable optical quantum computation.
The researchers, Iman Esmaeil Zadeh, Ali W. Elshaari, and coauthors, have published a paper on the integrated quantum circuits in a recent issue of Nano Letters.
As the researchers explain, one of the biggest challenges facing the realization of an efficient Linear Optical Quantum Computing system is integrating several components that are usually incompatible with each other onto a single platform. These components include a single-photon source such as quantum dots; routing devices such as waveguides; devices for manipulating photons such as cavities, filters, and quantum gates; and single-photon detectors.