Titlebook: Approximation and Online Algorithms; 8th International Wo Klaus Jansen,Roberto Solis-Oba Conference proceedings 2011 Springer Berlin Heidel

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Klaus Jansen,Roberto Solis-ObaHigh quality selected papers.Unique visibility.State of the art research

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A. Czerny,F. Kraus,A. Schittenhelmal study of the same problem on directed graphs, thus capturing real-life situations where the cost of installing capacity on an edge is asymmetric with respect to direction, as e.g. in the design of wireless and satellite communication networks..More specifically, we develop two approximation algor

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A. Czerny,F. Kraus,A. Schittenhelmensional bin packing algorithms, and we give lower bounds for their asymptotic worst-case behaviour. For on-line algorithms so far the best lower bound was given by van Vliet in 1992 [13]. He proved that there is no on-line bin packing algorithm with better asymptotic performance ratio than 1.54014.

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https://doi.org/10.1007/978-3-642-90650-3an incomplete problem A which is neither in P nor NP-complete. Here we show that if RP≠NP, then there is a counting problem .. which neither has a . (FPRAS), nor is as hard to approximate as #SAT..This work is motivated by recent results showing that approximately counting .-colouring problems appea

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Zum Problem der Fettleibigkeit, assume each job is associated with a user-defined value (or importance) and a deadline. We allow scheduling algorithms to discard some of the jobs (i.e., not finishing them) and the objective is to minimize the total energy usage plus the total value of jobs discarded. We give new online algorithms

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The Physiology of growth Hormone,ata. Clients issue requests for data from resources and the data may be dynamic or changing which imposes temporal constraints on the delivery of the data. A proxy server has to compute a probing schedule for the resources since it can probe a limited number of resources at each time step. Due to ov

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