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Robotics: Gesturing for control

New intelligent algorithms could help robots to quickly recognize and respond to human gestures. Researchers at A*STAR Institute for Infocomm Research in Singapore have created a computer program which recognises ...

Electronics / Robotics

created May 24, 2012 | popularity 5 / 5 (1) | comments 0

A robot learns how to tidy up after you

(Phys.org) -- Sooner than you think, we may have robots to tidy up our homes.

Electronics / Robotics

created May 22, 2012 | popularity 5 / 5 (5) | comments 0 | with audio podcast

Origami-inspired design method merges engineering, art

Researchers have shown how to create morphing robotic mechanisms and shape-shifting sculptures from a single sheet of paper in a method reminiscent of origami, the Japanese art of paper folding.

Technology / Engineering

created May 21, 2012 | popularity not rated yet | comments 0 | with audio podcast

App scans faces of bar-goers to guess age, gender

(AP) -- A watchful eye has arrived on San Francisco's bar scene, but not to keep you in check. It just wants to check you out.

Technology / Software

created May 19, 2012 | popularity 3.7 / 5 (3) | comments 0

Scientists design indoor navigation system for blind

University of Nevada, Reno computer science engineering team Kostas Bekris and Eelke Folmer presented their indoor navigation system for people with visual impairments at two national conferences in the past ...

Technology / Engineering

created May 18, 2012 | popularity 4.7 / 5 (3) | comments 0 | with audio podcast

You shoot and Croppola composes

We envy photographers who are experts at composing beautiful pictures and would like to achieve the same result. Croppola is a user-friendly online tool that helps photo-lovers to make the most of their pictures.

Technology / Software

created May 18, 2012 | popularity not rated yet | comments 1

Pair recreate 70's roulette-beating system

(Phys.org) -- A pair of university researchers has managed to duplicate the efforts of Doyne Farmer, who as a graduate student in the 1970’s devised a means for tilting the odds in favor of a gambler ...

Technology / Computer Sciences

created May 14, 2012 | popularity 3.2 / 5 (5) | comments 3 | with audio podcast weblog

Thwarting the cleverest attackers

In the last 10 years, cryptography researchers have demonstrated that even the most secure-seeming computer is shockingly vulnerable to attack. The time it takes a computer to store data in memory, fluctuations in its power ...

Technology / Computer Sciences

created May 01, 2012 | popularity 5 / 5 (5) | comments 2 | with audio podcast

Spot a bot to stop a botnet

Computer scientists in India have developed a two-pronged algorithm that can detect the presence of a botnet on a computer network and block its malicious activities before it causes too much harm. The team ...

Technology / Internet

created May 01, 2012 | popularity 4.3 / 5 (10) | comments 2 | with audio podcast

Computer surveillance will help keep an eye on national security

Protecting community through intelligent surveillance technology is vital but current facial recognition systems make it difficult to identify people in unconstrained environments.

Technology / Computer Sciences

created Apr 26, 2012 | popularity not rated yet | comments 1

New 3-D structures assemble with remarkable precision

(Phys.org) -- While it is relatively straightforward to build a box on the macroscale, it is much more challenging at smaller micro- and nanometer length scales. At those sizes, three-dimensional (3-D) structures are too ...

Nanotechnology / Nanomaterials

created Apr 24, 2012 | popularity 5 / 5 (1) | comments 2 | with audio podcast

NIST proposes update to digital signature standard

The National Institute of Standards and Technology (NIST) has announced proposed changes to a standard that specifies how to implement digital signatures, which can be used to ensure the integrity of electronic documents, ...

Technology / Other

created Apr 18, 2012 | popularity not rated yet | comments 0

Iris recognition report evaluates 'needle in haystack' search capability

Identifying people by acquiring pictures of their eyes is becoming easier, according to a new report from the National Institute of Standards and Technology (NIST). NIST researchers evaluated the performance ...

Technology / Other

created Apr 18, 2012 | popularity 5 / 5 (1) | comments 0

143 is largest number yet to be factored by a quantum algorithm

(Phys.org) -- While factoring an integer is a simple problem when the integer is small, the complexity of factorization greatly increases as the integer increases. When the integer grows to more than 100,000 ...

Physics / Quantum Physics

created Apr 11, 2012 | popularity 4.7 / 5 (19) | comments 10 | with audio podcast feature

Scientists find identical DNA codes in different plant species

Analyzing massive amounts of data officially became a national priority recently when the White House Office of Science and Technology Policy announced the Big Data Research and Development Initiative. A multi-disciplinary ...

Biology / Biotechnology

created Apr 09, 2012 | popularity 4.3 / 5 (6) | comments 7 | with audio podcast

Algorithm

In mathematics, computing, linguistics, and related subjects, an algorithm is a finite sequence of instructions, an explicit, step-by-step procedure for solving a problem, often used for calculation and data processing. It is formally a type of effective method in which a list of well-defined instructions for completing a task, will when given an initial state, proceed through a well-defined series of successive states, eventually terminating in an end-state. The transition from one state to the next is not necessarily deterministic; some algorithms, known as probabilistic algorithms, incorporate randomness.

A partial formalization of the concept began with attempts to solve the Entscheidungsproblem (the "decision problem") posed by David Hilbert in 1928. Subsequent formalizations were framed as attempts to define "effective calculability" (Kleene 1943:274) or "effective method" (Rosser 1939:225); those formalizations included the Gödel-Herbrand-Kleene recursive functions of 1930, 1934 and 1935, Alonzo Church's lambda calculus of 1936, Emil Post's "Formulation 1" of 1936, and Alan Turing's Turing machines of 1936–7 and 1939.

For more information about Algorithm, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

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