Researchers in geometric algorithms | Lattice theorists
Ivan Rival (March 15, 1947 – January 22, 2002 in Ottawa, Ontario, Canada) was a Canadian mathematician and computer scientist, a professor of mathematics at the University of Calgary and of computer science at the University of Ottawa. Rival's Ph.D. thesis concerned lattice theory. After moving to Calgary he began to work more generally with partially ordered sets, and to study fixed point theorems for partially ordered structures. He was a frequent organizer of conferences in order theory, and in 1984 he founded the journal Order. As a computer scientist at Ottawa, he shifted research topics, applying his expertise in order theory to the study of data structures, computational geometry, and graph drawing. Rival grew up in Hamilton, Ontario. He earned a bachelor's degree at McMaster University in 1969, and received his Ph.D. from the University of Manitoba in 1974 under the supervision of George Gratzer. After postdoctoral stints visiting Robert Dilworth at Caltech and Rudolf Wille at the Technische Hochschule Darmstadt, he took a faculty position at Calgary in 1975, and was promoted to full professor in 1981. In 1986, he moved to the University of Ottawa, where he became chair of the computer science department. Rival's doctoral students included Dwight Duffus, the Goodrich C. White Professor of Mathematics & Computer Science at Emory University. Duffus took over the editorship of Order after the retirement (as editor) of William T. Trotter , who took over the editorship from Rival. (Wikipedia).
History vs. Genghis Khan - Alex Gendler
Check out our Patreon page: https://www.patreon.com/teded View full lesson: http://ed.ted.com/lessons/history-vs-genghis-khan-alex-gendler He was one of the most fearsome warlords who ever lived, waging an unstoppable conquest across the Eurasian continent. But was Genghis Khan a vicious
From playlist History vs.
GOD the good one VS Lucyluxor - it's ON
The contestants: God the good one - https://www.youtube.com/channel/UCO8Bw27SxHuuMvTdmZzd0-g Lucyluxor - https://www.youtube.com/user/lucybateman1 The prize: Everything Who will win in the ultimate battle for Dave?
From playlist Nerdy Rodent Uploads!
Volodymyr Zelenskiy vs Vladimir Putin | Short Essay
Essay on how different Ukrainian president Volodymyr Zelenskiy from Russian president Vladimir Putin. Support independent research and analysis by joining my Patreon page: https://www.patreon.com/thehatedone Russia’s invasion in Ukraine is a self-centered ambition of an authoritarian lea
From playlist Analyses
History vs. Vladimir Lenin - Alex Gendler
View full lesson: http://ed.ted.com/lessons/history-vs-vladimir-lenin-alex-gendler Vladimir Lenin overthrew Russian Czar Nicholas II and founded the Soviet Union, forever changing the course of Russian politics. But was he a hero who toppled an oppressive tyranny or a villain who replaced
From playlist History vs.
Support CaspianReport through Patreon: https://www.patreon.com/CaspianReport BAKU - For many, Vladimir Putin is a strong decisive leader. An example to be emulated. Sometimes he seems nearly untouchable. Yet, strong leaders leave behind big shoes to fill. Currently, no one in Russia is qu
From playlist Geopolitics
Genghis Khan - The Rivalry of Blood Brothers - Extra History - #2
When Temüjin needed help to find his kidnapped wife, Börte, his blood brother and friend Jamukha came to his aid, and the two eventually combined their camps and families. But peace would not last long... ---- Miss an episode in our Genghis KhanSeries? ---- Part 1 - Temüjin the Child: htt
From playlist Extra History (ALL EPISODES)
Cocaine Queens (Full Episode) | Trafficked with Mariana Van Zeller
Mariana investigates a new breed of narco starting to gain power in cocaine trafficking networks of Colombia and Brazil: las jefas, lady bosses. ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Get more Nat Geo Full Episodes: https://youtube.com/playlist?list=PLivjPDlt6ApSiD2mk9Ngp-5dZ9CDDn7
From playlist Full Episodes | National Geographic
The Many Deaths of Tsarevich Dmitry
During Russia's "Time of Troubles" at the turn of the seventeenth century, a prince just wouldn't stay dead. The History Guy remembers the many death of Tsarevich Dmitry. This is original content based on research by The History Guy. Images in the Public Domain are carefully selected and
From playlist Europe
Pawns and Princes of Russia: Tsarevich Dmitry and Svetlana Alliluyeva
Check out our new community for fans and supporters! https://thehistoryguyguild.locals.com/ This is an episode of the THG Podcast, which posts to YouTube once every two weeks in addition to regular History Guy content, about a month after it releases to podcast services. Subscribe to the R
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Leonid Volkov: Russian Politics and Strategy of the Russian Opposition
Leonid Volkov, 2018 Yale World Fellow and chief of staff for Alexey Navalny — 2010 Yale World Fellow and the leader of the Russian opposition — reflects on the state-of-the-art and nearest future of Russian politics. He addresses questions pertaining to the challenges faced by President Pu
From playlist The MacMillan Center
Who Were the Mongols? | Genghis Khan and The History of the Mongol Empire
Hear the story of one of the most violent empires that the world has ever seen—the Mongol Empire—beginning with Genghis (Chinggis) Khan, who claimed a mandate from heaven to rule the world. The rest is a story filled with murder, destruction, and the ultimate unification of Eurasia. This
From playlist Ancient History
Alan Hammmond (Berkeley) -- Stability and chaos in dynamical last passage percolation
Many complex statistical mechanical models have intricate energy landscapes. The ground state, or lowest energy state, lies at the base of the deepest valley. In examples such as spin glasses and Gaussian polymers, there are many valleys; the abundance of near-ground states (at the base of
From playlist Columbia Probability Seminar
The wild sex lives of marine creatures - Luka Seamus Wright
Take a peek beneath the ocean’s covers to discover the surprisingly inventive ways marine animals have sex. -- On a reef in the Pacific Ocean, 17,000 camouflage groupers dart about in the cloudy water. It is, in fact, an underwater orgy— turned feeding frenzy. An orgy might seem like a r
From playlist Amazing Animals
How to Train a Brain: Crash Course Psychology #11
I'm sure you've heard of Pavlov's Bell, but what was Ivan Pavlov up to, exactly? And how are our brains trained? And what is a "Skinner Box"? All those questions and more are answered in today's Crash Course Psychology, in which Hank talks about some of the aspects of learning. Want more
From playlist Psychology
Hunting the Communists! - Joseph McCarthy l THE COLD WAR
Joseph McCarthy rose to fame during the 1950s fighting communism on American soil. The ever lingering fear of Soviet spies spreading un-Americanism in the US during the cold war hit a nerve and quickly made him popular in the republican political field. With time though more and more incon
From playlist THE COLD WAR - All Episodes
Zoom Talk: ""Polynomial integrals via systems of quasi-linear equations", Misha Bialyi
SMRI -MATRIX Symposium: Nijenhuis Geometry and Integrable Systems Week 2 (MATRIX): Zoom Talk by Misha Bialyi 16 February 2022 ---------------------------------------------------------------------------------------------------------------------- SMRI-MATRIX Joint Symposium, 7 – 18 Februar
From playlist MATRIX-SMRI Symposium: Nijenhuis Geometry and integrable systems
Vitaliy Kurlin (5/9/18): Skeletonization algorithms with theoretical guarantees for point clouds
We study the problem of approximating an unorganized cloud of points (in any Euclidean or metric space) by a 1-dimensional graph or a skeleton. The following recent algorithms provide theoretical guarantees for an output skeleton: the 1-dimensional Mapper, alpha-Reeb graphs and a Homologic
From playlist AATRN 2018
Daniel Bennequin - Topos, stacks, semantic information and artificial neural networks
Talk at the school and conference “Toposes online” (24-30 June 2021): https://aroundtoposes.com/toposesonline/ Joint work with Jean-Claude Belfiore Every known artificial deep neural network (DNN) corresponds to an object in a canonical Grothendieck’s topos; its learning dynamic correspo
From playlist Toposes online
Nonnegative matrix factorisation with the beta-divergence (...) - Févotte - Workshop 3 -CEB T1 2019
Cédric Févotte (CNRS, Toulouse) / 04.04.2019 Nonnegative matrix factorisation with the beta-divergence for robust hyperspectral unmixing Data is often available in matrix form, in which columns are samples, and processing of such data often entails finding an approximate factorisation o
From playlist 2019 - T1 - The Mathematics of Imaging
Genghis Khan - The Debut of Temüjin Khan - Extra History - #3
Jamukha and Temüjin were officially fighting for control of the Mongolian steppes, appointing themselves the titles of "khan." But each man practiced wildly different strategies to gain prestige--Jamukha showed no mercy, but Temüjin took a more egalitarian route. ---- Miss an episode in o
From playlist Extra History (ALL EPISODES)