A galactic algorithm is one with world-beating theoretical (asymptotic) performance, but which is never used in practice. Typical reasons are that the performance gains only appear for problems that are so large they never occur, or the algorithm's complexity outweighs a relatively small gain in performance. Galactic algorithms were so named by Richard Lipton and Ken Regan,[1] because they will never be used on any data sets on Earth.
^Lipton, Richard J.; Regan, Kenneth W. (2013). "David Johnson: Galactic Algorithms". People, Problems, and Proofs: Essays from Gödel's Lost Letter: 2010. Heidelberg: Springer Berlin. pp. 109–112. ISBN 9783642414220.
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A galacticalgorithm is one with world-beating theoretical (asymptotic) performance, but which is never used in practice. Typical reasons are that the...
3728596) time, given by Alman and Williams. However, this algorithm is a galacticalgorithm because of the large constants and cannot be realized practically...
such galacticalgorithms are not useful in practice, as they are much slower for matrices of practical size. For small matrices even faster algorithms exist...
hypothesis. While the algorithm is of immense theoretical importance, it is not used in practice, rendering it a galacticalgorithm. For 64-bit inputs,...
multiplication algorithm is O(n2.371552). However, this and similar improvements to Strassen are not used in practice, because they are galacticalgorithms: the...
The following tables list the computational complexity of various algorithms for common mathematical operations. Here, complexity refers to the time complexity...
notation to express) as to rule out any application, making it a galacticalgorithm. Furthermore, in order to apply this result constructively, it is...
implementation of XNA. Galactic Arms Race was a finalist in the 2010 Indie Game Challenge. A paper detailing the game's weapon evolution algorithm won the Best...
NeuroEvolution of Augmenting Topologies (NEAT) is a genetic algorithm (GA) for the generation of evolving artificial neural networks (a neuroevolution...
dedispersion algorithms and the computing power provided by the SETI network may lead to discovery of previously undiscovered phenomena. Active galactic nucleus...
the galaxy for observing Type II and III civilizations would then be the Galactic Center, due to the high density of the stellar population it harbors. He...
which led the development of Galactic Arms Race. He also developed the HyperNEAT, CPPNs, and novelty search algorithms. He also co-founded Geometric...
hours RA so that it was in the southern galactic cap (see Draft:Galactic cap) and did not suffer from galactic extinction. The project discovered more...
hole would look like progressed to predictions of VLBI imaging for the Galactic Center black hole, Sgr A*. Technical advances in radio observing moved...
University on the planet Trantor, Seldon develops psychohistory, an algorithmic science that allows him to predict the future in probabilistic terms...
a planet must be neither too far away from nor too close to a star and galactic centre to support life, while either extreme would result in a planet incapable...
the direction towards the Galactic Center. Galactic latitude resembles the elevation above the galactic plane and galactic longitude determines direction...
Association Special Geographic Area of Bangsamoro, Philippines Standard Galactic Alphabet, the writing system in the Commander Keen fictional universe Stargate...
its relative proximity to the Milky Way galaxy, large size, and active galactic nucleus (which harbors a 70 million M☉ supermassive black hole), Messier...
forever. The halting problem is undecidable, meaning that no general algorithm exists that solves the halting problem for all possible program–input...
"Never Can Say Goodbye" and 1977's platinum-selling Star Wars and Other Galactic Funk. He was approached by former Record Plant co-worker Tommy Ramone to...
gravitational encounters of binary stars with the supermassive black hole at the Galactic Center. Stellar kinematics is related to but distinct from the subject...
the current canon. The clone troopers were soldiers who fought for the Galactic Republic during the Fall of the Jedi era. All clone troopers are artificially...
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