Science Daily - Computer Science

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Computer Science. Read all the latest developments in the computer sciences including articles on new software, hardware and systems.
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Real-time Captcha technique improves biometric authentication

Mon, 02/19/2018 - 11:12am
A new login authentication approach could improve the security of current biometric techniques that rely on video or images of users' faces. Known as Real-Time Captcha, the technique uses a unique 'challenge' that's easy for humans -- but difficult for attackers who may be using machine learning and image generation software to spoof legitimate users.

Unconventional superconductor may be used to create quantum computers of the future

Mon, 02/19/2018 - 4:17am
With their insensitivity to decoherence what are known as Majorana particles could become stable building blocks of a quantum computer. The problem is that they only occur under very special circumstances. Now researchers have succeeded in manufacturing a component that is able to host the sought-after particles.

Promising method for improving quantum information processing

Fri, 02/16/2018 - 11:26am
A team of researchers has demonstrated a new method for splitting light beams into their frequency modes, work that could spur advancements in quantum information processing and distributed quantum computing.

No testosterone changes found in esports gamers

Fri, 02/16/2018 - 11:26am
Players of the competitive esports video game League of Legends showed no change in testosterone during game play, researchers have found.

Fingerprints of quantum entanglement

Thu, 02/15/2018 - 7:57am
Quantum entanglement is a key feature of a quantum computer. Using conventional methods is hard since they require a large number of repeated measurements. Scientists have developed a novel method where in many cases even a single experimental run suffices to prove the presence of entanglement.

Better together: Silicon qubits plus light add up to new quantum computing capability

Wed, 02/14/2018 - 12:00pm
In a significant step forward for quantum computing in silicon - the same material used in today's computers -- a team has successfully coupled a single electron's quantum information, or spin, to a particle of light, or photon. The goal is to use light to carry quantum information on a futuristic quantum computing chip.

Neural networks everywhere

Wed, 02/14/2018 - 11:58am
Special-purpose chip that performs some simple, analog computations in memory reduces the energy consumption of binary-weight neural networks by up to 95 percent while speeding them up as much as sevenfold.

Energy-efficient encryption for the internet of things

Tue, 02/13/2018 - 9:04am
A special-purpose chip hardwired to implement elliptic-curve cryptography in general and the datagram transport layer security protocol in particular reduces power consumption by 99.75 percent and increases speed 500-fold, to help enable the internet of things.

New process allows 3-D printing of nanoscale metal structures

Mon, 02/12/2018 - 7:06am
By mixing metal ions and organic ligands, scientists have developed a process for the 3-D printing of metal structures that are smaller than ever before.

AI computer vision breakthrough IDs poachers in less than half a second

Thu, 02/08/2018 - 3:03pm
Researchers have long been applying AI to protect wildlife. Initially, computer scientists were using AI and game theory to anticipate the poachers' haunts, and now they have applied artificial intelligence and deep learning to spot poachers in near real-time.

Earthquake simulations of California's Hayward fault

Thu, 02/08/2018 - 11:51am
In the next 30 years, there is a one-in-three chance that California's Hayward fault will rupture with a 6.7 magnitude or higher earthquake. Scientists have used some of the world's most powerful supercomputers to model ground shaking for a magnitude 7.0 earthquake on the Hayward fault and show more realistic motions than ever before.

3-D vision discovered in praying mantis

Thu, 02/08/2018 - 9:09am
Miniature glasses have revealed a new form of 3-D vision in praying mantises that could lead to simpler visual processing for robots.

Researchers help robots 'think' and plan in the abstract

Thu, 02/08/2018 - 9:08am
New research shows how robots can autonomously construct abstract representations of their surroundings and use them to plan for multi-step tasks.

Brain training for old dogs: Could touchscreen games become the Sudoku of man’s best friend?

Wed, 02/07/2018 - 7:22am
Spoiling old dogs in their twilight years by retiring them to the sofa and forgiving them their stubbornness or disobedience, doesn’t do our four-legged friends any good. Regular brain training and lifelong learning create positive emotions and can slow down mental deterioration in old age. Physical limitations, however, often do not allow the same sort of training as used in young dogs. In a new study, a team of researchers led by cognitive biologists propose computer interaction as a practical alternative. In the training lab, old dogs responded positively to cognitive training using educational touchscreen games.

Crowd workers, AI make conversational agents smarter

Wed, 02/07/2018 - 7:17am
Conversational agents such as Siri, Alexa and Cortana are great at giving you the weather, but are flummoxed when asked for unusual information, or follow-up questions. By adding humans to the loop researchers have created a conversational agent that is tough to stump. It's not the first chatbot to use human brainpower to answer a broad range of questions. What sets it apart is humans are simultaneously training its artificial intelligence, making it gradually less dependent on people.

Love actually: Computer model may decode Facebook emoticons

Tue, 02/06/2018 - 12:18pm
While the trusty 'like' button is still the most popular way to signal approval for Facebook posts, a computer model may help users and businesses navigate the increasingly complicated way people are expressing how they feel on social media.

Taking terahertz data links around the bend

Tue, 02/06/2018 - 8:51am
A new study shows terahertz data links are possible even without direct line-of-sight between transmitter and receiver, a promising finding for future ultra-high-capacity terahertz data networks.

Smartly containing the cloud increases computing efficiency, says first-of-its-kind study

Tue, 02/06/2018 - 8:49am
Researchers discovered ways to further improve computing efficiency using management tools for cloud-based light-weight virtual machine replacements called containers.

Worm 'uploaded' to computer and taught amazing tricks

Tue, 02/06/2018 - 7:58am
The tiny worm C. elegans is the only living being whose neural network has been analyzed completely. It can therefore be transferred to a computer, creating a virtual copy of the worm which behaves in exactly the same way to external stimuli. Such a 'virtual worm' can learn amazing tricks -- its neural network can even be used to balance a pole, which is a standard control problem in computer science.

Online tool speeds up evolution education

Mon, 02/05/2018 - 8:30am
The biology teacher's pedagogical toolbox is evolving. Bright colors, replicating computer code and a digital petri dish bring evolution science to life for students.