ScienceDaily: Computers and Internet News |
- New algorithm shakes up cryptography
- Quantum simulator gives clues about magnetism
- The brain: Key to a better computer
- Computer specialists draw the map of the talk in social networks
| New algorithm shakes up cryptography Posted: 15 May 2014 01:37 PM PDT Researchers have solved one aspect of the discrete logarithm problem. This is considered to be one of the 'holy grails' of algorithmic number theory, on which the security of many cryptographic systems used today is based. They have devised a new algorithm that calls into question the security of one variant of this problem, which has been closely studied since 1976.  |
| Quantum simulator gives clues about magnetism Posted: 15 May 2014 11:28 AM PDT Researchers optically trapped a cloud of gas a billion times colder than air in a very low-pressure vacuum, and found a lower speed limit to diffusion. Assembling the puzzles of quantum materials is, in some ways, like dipping a wire hanger into a vat of soapy water, says one of the researchers. Long before mathematical equations could explain the shapes and angles in the soap foams, mathematicians conjectured that soap films naturally found the geometry that minimized surface area, thus solving the problem of minimal surfaces. They could be created simply by blowing soap bubbles.  |
| The brain: Key to a better computer Posted: 15 May 2014 09:32 AM PDT Your brain is incredibly well-suited to handling whatever comes along, plus it's tough and operates on little energy. Those attributes -- dealing with real-world situations, resiliency and energy efficiency -- are precisely what might be possible with neuro-inspired computing. Neuro-inspired computing seeks to develop algorithms that would run on computers that function more like a brain than a conventional computer.  |
| Computer specialists draw the map of the talk in social networks Posted: 15 May 2014 06:55 AM PDT Computer scientists have developed a web service that is able to search and retrieve data from social networks and position them on a map for further study and use. The geolocated analysis of social networks performed by this "Web 2.0 Broker Service" enables to visualize where people are talking about something, thus allowing, for example, that advertising agencies can track, measure and analyze the impact of advertising campaigns, or that agencies such as the European Forest Center detect in real time where and when people are talking about a forest fire.  |
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