Abstract
In this paper, we study the constrained stochastic submodular maximization problem with state-dependent costs. The input of our problem is a set of items whose states (i.e., the marginal contribution and the cost of an item) are drawn from a known probability distribution. The only way to know the realized state of an item is to select that item. We consider two constraints, i.e., inner and outer constraints. Recall that each item has a state-dependent cost, and the inner constraint states that the total realized cost of all selected items must not exceed a give budget. Thus, inner constraint is state-dependent. The outer constraint, on the other hand, is state-independent. It can be represented as a downward-closed family of sets of selected items regardless of their states. Our objective is to maximize the objective function subject to both inner and outer constraints. Under the assumption that larger cost indicates larger “utility”, we present a constant approximate solution to this problem.
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Notes
- 1.
For simplicity, we only consider deterministic policy. However, all results can be easily extended to random policies.
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Tang, S. (2022). Constrained Stochastic Submodular Maximization with State-Dependent Costs. In: Ni, Q., Wu, W. (eds) Algorithmic Aspects in Information and Management. AAIM 2022. Lecture Notes in Computer Science, vol 13513. Springer, Cham. https://doi.org/10.1007/978-3-031-16081-3_11
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DOI: https://doi.org/10.1007/978-3-031-16081-3_11
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