Abstract
We consider the problem of optimizing a nonlinear objective function over a weighted independence system presented by a linear optimization oracle. We provide a polynomial-time algorithm that determines an r-best solution for nonlinear functions of the total weight of an independent set, where r is a constant depending on certain Frobenius numbers of the weights and is independent of the size of the ground set. In contrast, we show that finding an optimal (0-best) solution requires exponential time even in a very special case of the problem.
This research was supported in part by the Mathematisches Forschungsinstitut Oberwolfach through the Research in Pairs Programme.
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Lee, J., Onn, S., Weismantel, R. (2009). Nonlinear Optimization over a Weighted Independence System. In: Goldberg, A.V., Zhou, Y. (eds) Algorithmic Aspects in Information and Management. AAIM 2009. Lecture Notes in Computer Science, vol 5564. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-02158-9_22
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DOI: https://doi.org/10.1007/978-3-642-02158-9_22
Publisher Name: Springer, Berlin, Heidelberg
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