Titlebook: Algorithms and Complexity; 4th Italian Conferen Giancarlo Bongiovanni,Rossella Petreschi,Giorgio G Conference proceedings 2000 Springer-Ver

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Der Kindergarten als Bildungsinstitutionimimize the average time incurred by the customers to be served rather than to mini- mize its working time like the egoistic Travelling Salesman does. The new approximation scheme for the Travelling Salesman is also at the basis of a new approximation scheme for the Travelling Repairman problem in t

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Duality in ATM Layout Problemsaths layouts we use binary trees and lattice paths (that use horizontal and vertical steps). In the general case we use ternary trees, lattice paths (that use horizontal, vertical and diagonal steps), and high dimensional spheres. These correspondences shed light on the structure of the optimal solu

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The Online-TSP against Fair Adversarieshan against a conventional adversary. Specifically, we present an algorithm against a fair adversary with competitive ratio .and provide a matching lower bound. We also show competitiveness results for a special class of algorithms (called diligent algorithms) that do not allow waiting time for the

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