2020/04/25 by Yaron Fairstein, Ariel Kulik, Fairstein, Yaron +8
Computer Science · Engineering · #Advanced Manufacturing and Logistics Optimization #Computational Geometry and Mesh Generation #Data Structures and Algorithms (cs.DS) #FOS: Computer and information sciences #Optimization and Packing Problems
paper · doi:10.48550/arxiv.2004.12224
openalex publication_date 2020/04/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the problem of maximizing a monotone submodular function subject to a Multiple Knapsack constraint. The input is a set I of items, each has a non-negative weight, and a set of bins of arbitrary capacities. Also, we are given a submodular, monotone and non-negative function f over subsets of the items. The objective is to find a packing of a subset of items A ⊆ I in the bins such that f(A) is maximized. Our main result is an almost optimal polynomial time (1-e-1-ε)-approximation algorithm for the problem, for any ε>0. The algorithm relies on a structuring technique which converts a general multiple knapsack constraint to a constraint in which the bins are partitioned into groups of exponentially increasing cardinalities, each consisting of bins of uniform capacity. We derive the result by combining structuring with a refined analysis of techniques for submodular optimization subject to knapsack constraints.