作者: Bernd Gärtner , Emo Welzl
关键词: Time complexity 、 Simplex algorithm 、 Computer science 、 Ellipsoid 、 Intersection 、 Mathematical optimization 、 Linear programming 、 Computational geometry 、 Dimension (graph theory) 、 Polytope 、 Geometric programming
摘要: This tutorial is aiming at some randomized approaches for geometric optimization that have been developed over the last ten to fifteen years. The methods are simple, sometimes even analysis is. simplicity of entails they use very little underlying structure problems tackle, and, as a consequence, applicable whole range problems. Most prominently, led new bounds combinatorial solutions linear programming. But with adaption necessary — basically few problem specific primitive operations be supplied —the can used computing smallest enclosing balls point sets, volume ellipsoids, distance between polytopes (given either convex hulls or intersection halfspaces), and several other If dimension input instance constant, then time available, them behave ‘well’ when grows; least, no better provable behavior known. Many interpreted variants simplex algorithm, appropriately chosen pivot rules.