Titlebook: Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques; 15th International W Anupam Gupta,Klaus Jansen,Roc

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Lecture Notes in Computer Sciencehttp://image.papertrans.cn/b/image/160464.jpg

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H. Löllgen,T. Steinberg,U. J. WinterWe show that given a satisfiable instance of the 2-to-1 Label Cover problem, it is .-hard to find a .-satisfying assignment.

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A New Point of NP-Hardness for 2-to-1 Label CoverWe show that given a satisfiable instance of the 2-to-1 Label Cover problem, it is .-hard to find a .-satisfying assignment.

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Allgemeine Aspekte ergometrischer Meßgrößenlynomials with a noise term. The frequencies {..} satisfy .. ∈ [.,2. − .] and min . |.. − ..| ≥ . for some . > 0. We design a sublinear time randomized algorithm, which takes .(.log.log(1/.)(log. + log( ∥ . ∥ ./ ∥ . ∥ .)) samples of .(.) and runs in time proportional to number of samples, recovering

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H. Löllgen,U. J. Winter,P. Dirschedlubset .. ⊆ [.] of items of interest, together with a budget .., and we assume that there is an unlimited supply of each item. Once the prices are fixed for all items, each customer . buys a subset of items in .., according to its buying rule. The goal is to set the item prices so as to maximize the