Extreme Gradient Boosting
Extreme may refer to: Science and mathematics Mathematics *Extreme point, a point in a convex set which does not lie in any open line segment joining two points in the set *Maxima and minima, extremes on a mathematical function Science *Extremophile, an organism which thrives in or requires some "extreme" environment *Extremes on Earth *List of extrasolar planet extremes Politics *Extremism, political ideologies or actions deemed outside the acceptable range *The Extreme (Italy) or Historical Far Left, a left-wing parliamentary group in Italy 1867–1904 Business *Extreme Networks, a California-based networking hardware company *Extreme Records, an Australia-based record label *Extreme Associates, a California-based adult film studio Computer science *Xtreme Mod, a peer-to-peer file sharing client for Windows Sports and entertainment Sport *Extreme sport *Extreme Sports Channel A global sports and lifestyle brand dedicated to extreme sports and youth culture *Los Angeles Xt ...
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Extreme Point
In mathematics, an extreme point of a convex set S in a Real number, real or Complex number, complex vector space is a point in S that does not lie in any open line segment joining two points of S. The extreme points of a line segment are called its ''endpoint (geometry), endpoints''. In linear programming problems, an extreme point is also called ''vertex (geometry), vertex'' or ''corner point'' of S. Definition Throughout, it is assumed that X is a Real number, real or Complex number, complex vector space. For any p, x, y \in X, say that p x and y if x \neq y and there exists a 0 < t < 1 such that $p\; =\; t\; x\; +\; (1-t)\; y.$ If $K$ is a subset of $X$ and $p\; \backslash in\; K,$ then $p$ is called an of $K$ if it does not lie between any two points of $K.$ That is, if there does exist $x,\; y\; \backslash in\; K$ and such that $x\; \backslash neq\; y$ and $p\; =\; t\; x\; +\; (1-t)\; y.$ The s ...
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