A distributed algorithm for partitioned robust submodular maximization
A distributed algorithm for partitioned robust submodular maximization
复制标题
一种用于分区鲁棒子模最大化的分布式算法
DOI:
10.1109/camsap.2017.8313155
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发表时间:
2017
期刊:
影响因子:
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通讯作者:
V. Cevher
中科院分区:
文献类型:
--
作者:
Ilija Bogunovic;Slobodan Mitrovic;J. Scarlett;V. Cevher
In this paper, we consider the problem of maximizing a monotone submodular function subject to a cardinality constraint, with two added twists: The computation is distributed across a number of machines, and we require the solution to be robust against adversarial removals. We provide two versions of a partitioned robust algorithm for this problem, with the difference amounting to whether or not the centralized machine is informed (only in the final stage of the algorithm) which elements will be removed. In both of these cases, we provide a novel constant-factor approximation guarantee with respect to the optimal algorithm. Finally, we validate our algorithms via numerical experiments on real-world data sets in influence maximization and data summarization.
DOI:
--
发表时间:
2015-02
期刊:
ArXiv
影响因子:
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作者:
R. Barbosa;Alina Ene;Huy L. Nguyen;Justin Ward
通讯作者:
R. Barbosa;Alina Ene;Huy L. Nguyen;Justin Ward