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Maximizing submodular functions has been increasingly used in many applications of machine learning, such as data summarization, recommendation systems, and feature selection. Moreover, there has been a growing interest in both submodular…

This article provides a comprehensive exploration of submodular maximization problems, focusing on those subject to uniform and partition matroids. Crucial for a wide array of applications in fields ranging from computer science to systems…

数据结构与算法 · 计算机科学 2025-01-03 Solmaz S. Kia

We study the problem of maximizing a non-negative monotone $k$-submodular function $f$ under a knapsack constraint, where a $k$-submodular function is a natural generalization of a submodular function to $k$ dimensions. We present a…

数据结构与算法 · 计算机科学 2023-08-04 Zhongzheng Tang , Chenhao Wang , Hau Chan

Submodular functions and their optimization have found applications in diverse settings ranging from machine learning and data mining to game theory and economics. In this work, we consider the constrained maximization of a submodular…

数据结构与算法 · 计算机科学 2025-07-15 Moran Feldman , Alan Kuhnle

In recent years, maximization of DR-submodular continuous functions became an important research field, with many real-worlds applications in the domains of machine learning, communication systems, operation research and economics. Most of…

数据结构与算法 · 计算机科学 2022-10-13 Loay Mualem , Moran Feldman

We consider the problem of minimizing a function represented as a sum of submodular terms. We assume each term allows an efficient computation of {\em exchange capacities}. This holds, for example, for terms depending on a small number of…

数据结构与算法 · 计算机科学 2012-06-12 Vladimir Kolmogorov

A set function $f$ on a finite set $V$ is submodular if $f(X) + f(Y) \geq f(X \cup Y) + f(X \cap Y)$ for any pair $X, Y \subseteq V$. The symmetric difference transformation (SD-transformation) of $f$ by a canonical set $S \subseteq V$ is a…

离散数学 · 计算机科学 2019-02-08 Junpei Nakashima , Yukiko Yamauchi , Shuji Kijima , Masafumi Yamashita

We show that the recent breakthrough result of [Buchbinder and Feldman, FOCS'24] could further lead to a deterministic $(1-\kappa_{f}/e-\varepsilon)$-approximate algorithm for maximizing a submodular function with curvature $\kappa_{f}$…

数据结构与算法 · 计算机科学 2024-09-06 Wenxin Li

We study the following problem: Given a variable of interest, we would like to find a best linear predictor for it by choosing a subset of $k$ relevant variables obeying a matroid constraint. This problem is a natural generalization of…

数据结构与算法 · 计算机科学 2023-01-19 Theophile Thiery , Justin Ward

We study submodular maximization problems with matroid constraints, in particular, problems where the objective can be expressed via compositions of analytic and multilinear functions. We show that for functions of this form, the so-called…

机器学习 · 计算机科学 2024-12-17 Gözde Özcan , Armin Moharrer , Stratis Ioannidis

This paper bridges discrete and continuous optimization approaches for decomposable submodular function minimization, in both the standard and parametric settings. We provide improved running times for this problem by reducing it to a…

数据结构与算法 · 计算机科学 2021-03-08 Kyriakos Axiotis , Adam Karczmarz , Anish Mukherjee , Piotr Sankowski , Adrian Vladu

Submodular functions are an important class of functions in combinatorial optimization which satisfy the natural properties of decreasing marginal costs. The study of these functions has led to strong structural properties with applications…

多智能体系统 · 计算机科学 2009-11-13 Gagan Goel , Pushkar Tripathi , Lei Wang

This paper studies the computational complexity of a robust variant of a two-stage submodular minimization problem that we call Robust Submodular Minimizer. In this problem, we are given $k$ submodular functions~$f_1,\dots,f_k$ over a set…

数据结构与算法 · 计算机科学 2024-07-30 Naonori Kakimura , Ildikó Schlotter

This paper defines weak-$\alpha$-supermodularity for set functions. Many optimization objectives in machine learning and data mining seek to minimize such functions under cardinality constrains. We prove that such problems benefit from a…

数据结构与算法 · 计算机科学 2015-02-24 Christos Boutsidis , Edo Liberty , Maxim Sviridenko

The multilinear framework has achieved the breakthrough $1-1/e$ approximation for maximizing a monotone submodular function subject to a matroid constraint. This framework has a continuous optimization part and a rounding part. We extend…

数据结构与算法 · 计算机科学 2020-06-03 Mehrdad Ghadiri , Richard Santiago , Bruce Shepherd

We consider the problem of multi-objective maximization of monotone submodular functions subject to cardinality constraint, often formulated as $\max_{|A|=k}\min_{i\in\{1,\dots,m\}}f_i(A)$. While it is widely known that greedy methods work…

数据结构与算法 · 计算机科学 2021-05-04 Rajan Udwani

Submodularity is a discrete domain functional property that can be interpreted as mimicking the role of the well-known convexity/concavity properties in the continuous domain. Submodular functions exhibit strong structure that lead to…

信号处理 · 电气工程与系统科学 2023-07-19 Ehsan Tohidi , Rouhollah Amiri , Mario Coutino , David Gesbert , Geert Leus , Amin Karbasi

Submodular functions have been studied extensively in machine learning and data mining. In particular, the optimization of submodular functions over the integer lattice (integer submodular functions) has recently attracted much interest,…

机器学习 · 计算机科学 2020-06-03 Aytunc Sahin , Yatao Bian , Joachim M. Buhmann , Andreas Krause

We consider a class of submodular maximization problems in which decision-makers have limited access to the objective function. We explore scenarios where the decision-maker can observe only pairwise information, i.e., can evaluate the…

数据结构与算法 · 计算机科学 2022-02-09 Andrew Downie , Bahman Gharesifard , Stephen L. Smith

Let $V$ be a finite set of $n$ elements, $f: 2^V \rightarrow \mathbb{R}_+$ be a nonnegative monotone supermodular function, and $k$ be a positive integer no greater than $n$. This paper addresses the problem of maximizing $f(S)$ over all…

最优化与控制 · 数学 2025-10-23 Xujin Chen , Xiaodong Hu , Changjun Wang , Qingjie Ye