A note on the implications of approximate submodularity in discrete optimization
A note on the implications of approximate submodularity in discrete optimization
复制标题
关于离散优化中近似子模性影响的注释
DOI:
10.1007/s11590-022-01890-w
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发表时间:
2022
影响因子:
1.6
通讯作者:
Schaefer, Andrew J.
中科院分区:
文献类型:
--
作者:
Ajayi, Temitayo;Lee, Taewoo;Schaefer, Andrew J.
Submodularity is a key property in discrete optimization. Submodularity has been widely used for analyzing the greedy algorithm to give performance bounds and providing insight into the construction of valid inequalities for mixed-integer programs. In recent years, researchers started to study approximate submodularity, with a primary focus on providing performance bounds for iterative approaches. In this paper, we study approximate submodularity from a different perspective in order to broaden its use cases in discrete optimization. We define metrics that quantify approximate submodularity, which we then use to derive new properties about both approximate submodularity preservation and the well-known Lovász extension for set functions. We also show that previous analyses of mixed-integer sets, such as the submodular knapsack polytope, can be extended to the approximate submodularity setting. Our work demonstrates that one may generalize many of the analytical tools used in submodular optimization into the approximate submodularity context.
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影响因子:
3.6
作者:
S. Salhi
通讯作者:
S. Salhi
影响因子:
2.7
作者:
Alper Atamtürk;Vishnu Narayanan
通讯作者:
Vishnu Narayanan
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
Tomoyuki Obuchi;Remi Monasson;and Simona Cocco;Tomoyuki Obuchi and Yoshiyuki Kabashima
通讯作者:
Tomoyuki Obuchi and Yoshiyuki Kabashima
影响因子:
13.3
作者:
Matsui, Y;Nishio, K;Masuda, H
通讯作者:
Masuda, H