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.
Updated: 2 hours 16 min ago

New non-contact, remote biometric tool could be next advance in computer security

Mon, 09/25/2017 - 10:30am
Forget fingerprint computer identification or retinal scanning. Scientists have now developed a computer security system using the dimensions of your heart as your identifier. The system uses low-level Doppler radar to measure your heart, and then continually monitors your heart to make sure no one else has stepped in to run your computer.

New type of supercomputer could be based on 'magic dust' combination of light and matter

Mon, 09/25/2017 - 8:13am
Scientists have successfully demonstrated that a type of 'magic dust' which combines light and matter can be used to solve complex problems and could eventually surpass the capabilities of even the most powerful supercomputers.

Twitter bots for good: Study reveals how information spreads on social media

Fri, 09/22/2017 - 12:05pm
Twitter bots have earned a bad reputation. But not all bots are bad, suggests a new study.

New analysis explains role of defects in metal oxides

Thu, 09/21/2017 - 9:11am
Researchers have determined formulas to guide development of a promising new high-tech material, composed of insulating metal oxides known as alkaline-earth-metal binary oxides, that could lead to better computer memory chips, refrigeration systems, and other devices.

Automatic code reuse: System automatically modifies code for transfer to other programs

Wed, 09/20/2017 - 11:46am
Researchers have developed a new system that allows programmers to transplant code from one program into another. The programmer can select the code from one program and an insertion point in a second program, and the system will automatically make modifications necessary -- such as changing variable names -- to integrate the code into its new context.

World's first 'molecular robot' capable of building molecules

Wed, 09/20/2017 - 10:17am
Scientists have created the world's first 'molecular robot' that is capable of performing basic tasks including building other molecules.

Scientists make atoms-thick 'Post-It notes' for solar cells and circuits

Wed, 09/20/2017 - 10:17am
A new study describes an innovative method to make stacks of semiconductors just a few atoms thick. The technique offers scientists and engineers a simple, cost-effective method to make thin, uniform layers of these materials, which could expand capabilities for devices from solar cells to cell phones.

Mathematical simulations shed new light on epilepsy surgery

Wed, 09/20/2017 - 7:43am
Results from an unexpected quarter is could help neurologists to identify which brain region to remove to eliminate an epilepsy patient’s symptoms. Mathematicians have shown that it is sensible to examine the interconnections between different brain regions closely, instead of searching for abnormal regions only.

Security cameras vulnerable to attacks using infrared light

Tue, 09/19/2017 - 1:02pm
Researchers have demonstrated that security cameras infected with malware can receive covert signals and leak sensitive information from the very same surveillance devices used to protect facilities.

Wikipedia used to give AI context clues

Tue, 09/19/2017 - 11:04am
A team of computer scientists is teaching artificial intelligence agents how to interact with the world in a way that makes sense.

Optical, electrical bistability study sheds light on next-gen high speed data transfer

Mon, 09/18/2017 - 8:22pm
Today, electrical bistable devices are the foundation of digital electronics, serving as building blocks of switches, logic gates and memories in computer systems. However, the bandwidth of these electronic computers is limited by the signal delay of time constants important to electronic logic operations. In an attempt to mitigate these problems, scientists have considered the development of an optical digital computer, and one team has gone so far as to demonstrate the optical and electrical bistability for switching in a single transistor.

DNA triggers shape-shifting in hydrogels, opening a new way to make 'soft robots'

Mon, 09/18/2017 - 7:22pm
Biochemical engineers have used sequences of DNA molecules to induce shape-changing in water-based gels, demonstrating a new tactic to produce "soft" robots and "smart" medical devices that do not rely on cumbersome wires, batteries or tethers.

Wireless high-speed data and power transfer integrated

Mon, 09/18/2017 - 8:18am
Researchers have developed a system that can simultaneously deliver watts of power and transmit data at rates high enough to stream video over the same wireless connection. By integrating power and high-speed data, a true single 'wireless' connection can be achieved.

Quantum machine learning

Thu, 09/14/2017 - 12:23pm
Scientists have presented a thorough review on quantum machine learning, its current status and future prospects. The reports contrasts machine learning using classical and quantum resources, identifying opportunities that quantum computing brings to this field.

New manufacturing process for SiC power devices opens market to more competition

Wed, 09/13/2017 - 4:31pm
Researchers are rolling out a new manufacturing process and chip design for silicon carbide (SiC) power devices, which can be used to more efficiently regulate power in technologies that use electronics. The process -- called PRESiCE -- was developed to make it easier for companies to enter the SiC marketplace and develop new products.

Long-range communication barrier for near-zero-power devices shattered

Wed, 09/13/2017 - 4:30pm
Researchers have demonstrated for the first time that devices that run on almost zero power can transmit data across distances of up to 2.8 kilometers -- breaking a long-held barrier and potentially enabling a vast array of interconnected devices.

'The dark side' of quantum computers

Wed, 09/13/2017 - 4:29pm
The era of fully fledged quantum computers threatens to destroy internet security as we know it. Researchers are in a race against time to prepare new cryptographic techniques before the arrival of quantum computers, as cryptographers now describe.

To Improve smartphone privacy, control access to third-party libraries

Tue, 09/12/2017 - 10:48am
Smartphone apps that share users' personal Information often do so through services called third-party libraries, suggesting a new strategy for protecting privacy. CResearchers say controlling access to these third-party libraries, which help app developers make money by targeting people with ads or compiling marketing profiles, promises to be an effective way of limiting the unwanted release of personal information.

Connecting up the quantum internet

Mon, 09/11/2017 - 9:27am
Major leap for practical building blocks of a quantum internet: New research demonstrates how to dramatically improve the storage time of a telecom-compatible quantum memory, a vital component of a global quantum network. The technology operates in the same 1550 nanometer band as today's telecommunications infrastructure. It can also be operated as a quantum light source or used as an optical link for solid-state quantum computing devices such as superconducting qubits and silicon qubits.

Brain Composer: 'Thinking' melodies onto a musical score

Mon, 09/11/2017 - 9:26am
A new brain-computer interface application that allows music to be composed by the power of thought has now been developed by scientists.

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