Title
A Reduction for Optimizing Lattice Submodular Functions with Diminishing Returns.
Abstract
A function $f: mathbb{Z}_+^E rightarrow mathbb{R}_+$ is DR-submodular if it satisfies $f(bx + chi_i) -f (bx) ge f(by + chi_i) - f(by)$ for all $bxle by, iin E$. Recently, the problem of maximizing a DR-submodular function $f: mathbb{Z}_+^E rightarrow mathbb{R}_+$ subject to a budget constraint $|bx|_1 leq B$ as well as additional constraints has received significant attention cite{SKIK14,SY15,MYK15,SY16}. In this note, we give a generic reduction from the DR-submodular setting to the submodular setting. The running time of the reduction and the size of the resulting submodular instance depends only emph{logarithmically} on $B$. Using this reduction, one can translate the results for unconstrained and constrained submodular maximization to the DR-submodular setting for many types of constraints in a unified manner.
Year
Venue
Field
2016
arXiv: Data Structures and Algorithms
Discrete mathematics,Combinatorics,Lattice (order),Submodular set function,Submodular maximization,Mathematics
DocType
Volume
Citations 
Journal
abs/1606.08362
5
PageRank 
References 
Authors
0.43
6
2
Name
Order
Citations
PageRank
Alina Ene140925.47
Huy L. Nguyen237632.33