Titlebook: Algorithms and Data Structures; 12th International S Frank Dehne,John Iacono,J?rg-Rüdiger Sack Conference proceedings 2011 Springer-Verlag

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https://doi.org/10.1007/978-3-642-46152-1ility at its position, and an integer ., we seek to find at most . of the customers to set up facilities for serving all . customers such that the total cost for facility set-up and service transportation is minimized. We consider several problem variations including .-median and .-coverage and a li

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Algorithms and Data Structures978-3-642-22300-6Series ISSN 0302-9743 Series E-ISSN 1611-3349

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Heinrich Kraut,Ernst Kofrányi,Willi Wirthsadius 1, can be replaced by a strongly connected communication graph, in which each transceiver in . is equipped with a directional antenna of angle . and radius ., for some constant .. Moreover, the new communication graph is a .-spanner of the original graph, for some constant .?=?.(.), with respect to number of hops.

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Frank Dehne,John Iacono,J?rg-Rüdiger SackFast track conference proceedings.Unique visibility.State of the art research

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Lecture Notes in Computer Sciencehttp://image.papertrans.cn/a/image/153148.jpg

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Zusammenfassung und Perspektiven,ation, where .?≥?1 is its boxicity. For Normal Circular Arc(NCA) graphs, with an NCA model given, this can be improved to an additive 2-factor approximation algorithm. The time complexity of the algorithms to approximately compute the boxicity is .(.?+?..) in both these cases and in .(.?+?..) which

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Entstehung und Entwicklung des Konflikts,achieves optimal competitive ratio under this metric. The second measure is based on a weakening of the optimal cost as proposed by Kirkpatrick [ESA 2009] and McGregor . [ESA 2009]. For this model, we present an asymptotically optimal strategy which is within a multiplicative factor of Θ(log(.???.))

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