Abstract
Many problems in computer science are related to scheduling problems or embedding problems. Therefore it is an interesting topic to find efficient (approximation) algorithms for these two classes of problems. In this paper, we present fast approximation algorithms for scheduling on unrelated machines, job shop scheduling, network embeddings and approximating metrics. As the usual technique, we consider the fractional relaxations of the integral problems. By appropriate formulation, these problems can be solved with the approximation algorithms for general packing problems by Jansen and Zhang [18] (with rounding techniques if necessary). For approximating metrics problem, which can not be solved by most traditional methods efficiently, we show that our algorithm can deliver the desired approximate solution fast.
This research was supported in part by the DFG Graduiertenkolleg 357, Effiziente Algorithmen und Mehrskalenmethoden, by EU Thematic Network APPOL, Approximation and Online Algorithms for Optimization Problems, IST-2001-32007, and by EU Project CRESCCO, Critical Resource Sharing for Cooperation in Complex Systems, IST-2001-33135.
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Zhang, H. (2004). Packing: Scheduling, Embedding, and Approximating Metrics. In: Laganá, A., Gavrilova, M.L., Kumar, V., Mun, Y., Tan, C.J.K., Gervasi, O. (eds) Computational Science and Its Applications – ICCSA 2004. ICCSA 2004. Lecture Notes in Computer Science, vol 3045. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-24767-8_81
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