Coppersmith–Winograd algorithm: Difference between revisions

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Undid revision 921342465 by Cravatitude (talk) See https://en.wikipedia.org/wiki/Wikipedia:%22In_popular_culture%22_content#Good_and_bad_popular_culture_references. This is a passing, insignificant reference.
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[[Henry Cohn]], [[Robert Kleinberg]], [[Balázs Szegedy]] and [[Chris Umans]] have re-derived the Coppersmith–Winograd algorithm using a [[group theory|group-theoretic]] construction. They also showed that either of two different conjectures would imply that the optimal exponent of matrix multiplication is 2, as has long been suspected. However, they were not able to formulate a specific solution leading to a better running-time than Coppersmith–Winograd.<ref>{{Cite book | last1 = Cohn | first1 = H. | last2 = Kleinberg | first2 = R. | last3 = Szegedy | first3 = B. | last4 = Umans | first4 = C. | chapter = Group-theoretic Algorithms for Matrix Multiplication | doi = 10.1109/SFCS.2005.39 | title = 46th Annual IEEE Symposium on Foundations of Computer Science (FOCS'05) | pages = 379 | year = 2005 | isbn = 0-7695-2468-0 | pmid = | pmc = }}</ref> Several of their conjectures have since been disproven by Blasiak, Cohn, Church, Grochow, Naslund, Sawin, and Umans using the Slice Rank method.<ref>{{Cite book | last1 = Blasiak | first1 = J. | last2 = Cohn | first2 = H. | last3 = Church | first3 = T. | last4 = Grochow | first4 = J. | last5 = Naslund | first5= E. | last6 = Sawin | first6 = W. | last7=Umans | first7= C.| chapter= On cap sets and the group-theoretic approach to matrix multiplication | doi = 10.19086/da.1245 | title = Discrete Analysis | url = http://discreteanalysisjournal.com/article/1245-on-cap-sets-and-the-group-theoretic-approach-to-matrix-multiplication}}</ref>
 
== In Popular culture ==
The reduction in the exponent of the Coppersmith-Winograd algorithm from 2.3728642 to 2.3728639 was used to make the point that mathematicians are weird in the SMBC web-comic on 2019/10/14<ref>http://smbc-comics.com/comic/mathematicians</ref>. The algorithm was not referenced by name.
 
 
== See also ==