Edward Witten. Un article de Wikipédia, l'encyclopédie libre.
Il effectue des recherches sur la théorie des supercordes. Il en est considéré comme l'un de ses plus importants participants, notamment grâce à l'élaboration de la théorie M, première théorie des cordes ouvrant un horizon mathématique non perturbatif. Biographie[modifier | modifier le code] Edward Witten est né dans une famille juive à Baltimore, dans le Maryland. Fils de Lorraine W. Les nombreux travaux d'Edward dans le domaine de la physique théorique ont aussi eu un certain nombre de conséquences mathématiques. Witten a été le premier physicien à gagner la médaille Fields (1990) . « Bien qu'il soit avant tout un physicien, sa maîtrise des mathématiques surpasse de loin la plupart des mathématiciens. Distinctions[modifier | modifier le code] Notes et références[modifier | modifier le code] ↑ (en) K.
Edward Witten. Edward Witten (/ˈwɪtən/; born August 26, 1951) is an American theoretical physicist and professor of mathematical physics at the Institute for Advanced Study in Princeton, New Jersey.
Witten is a researcher in string theory, quantum gravity, supersymmetric quantum field theories, and other areas of mathematical physics. Birth and education[edit] Witten was born in Baltimore, Maryland. He is the son of Lorraine (Wollach) Witten and Louis Witten, a theoretical physicist specializing in gravitation and general relativity.[3] Witten attended the Park School of Baltimore (class of '68), and received his Bachelor of Arts with a major in history and minor in linguistics from Brandeis University in 1971.
Research[edit] Fields medal work[edit] Witten was awarded the Fields Medal by the International Mathematical Union in 1990, becoming the first physicist to win the prize. In a written address to the ICM, Michael Atiyah said of Witten,[1] Clay Shirky. Un article de Wikipédia, l'encyclopédie libre.
Clay Shirky, né en 1964, est un journaliste américain spécialiste des nouvelles technologies de l'information et de la communication (NTIC). Biographie[modifier | modifier le code] Consultant, écrivain et professeur, il a écrit sur les effets sociaux et économiques des technologies d'Internet, tel que le crowdsourcing. Diplômé de l'université de New York, il écrit et enseigne, entre autres, sur les effets de corrélation de la topologie sociale et technologique de réseau, où comment nos réseaux forment la culture et inversement. Clay Shirky. Clay Shirky (born 1964[2]) is an American writer, consultant and teacher on the social and economic effects of Internet technologies.
He has a joint appointment at New York University (NYU) as a Distinguished Writer in Residence at the Arthur L. Carter Journalism Institute and Assistant Arts Professor in the New Media focused graduate Interactive Telecommunications Program (ITP).[3] His courses address, among other things, the interrelated effects of the topology of social networks and technological networks, how our networks shape culture and vice-versa.[4] Education and career[edit] Shirky was the first Professor of New Media in the Media Studies department at Hunter College, where he developed the MFA in Integrated Media Arts program. In the Fall of 2010, Shirky was a visiting Morrow Lecturer at Harvard University's John F. Views[edit] In his book Here Comes Everybody, Shirky explains how he has long spoken in favor of crowdsourcing and collaborative efforts online.
WordNet. WordNet is a lexical database for the English language.[1] It groups English words into sets of synonyms called synsets, provides short, general definitions, and records the various semantic relations between these synonym sets.
The purpose is twofold: to produce a combination of dictionary and thesaurus that is more intuitively usable, and to support automatic text analysis and artificial intelligence applications. The database and software tools have been released under a BSD style license and can be downloaded and used freely. The database can also be browsed online. History and team members[edit] WordNet was created at the Cognitive Science Laboratory of Princeton University under the direction of psychology professor George Armitage Miller. Database contents[edit] Example entry "Hamburger" in WordNet good, right, ripe – (most suitable or right for a particular purpose; "a good time to plant tomatoes"; "the right time to act"; "the time is ripe for great sociological changes")