Results 21 to 30 of about 887,365 (205)

Submodular maximization of concave utility functions composed with a set-union operator with applications to maximal covering location problems

open access: yesMathematical programming, 2022
We study a family of discrete optimization problems asking for the maximization of the expected value of a concave, strictly increasing, and differentiable function composed with a set-union operator.
Stefano Coniglio   +2 more
semanticscholar   +1 more source

Fast and exact search for the partition with minimal information loss. [PDF]

open access: yesPLoS ONE, 2018
In analysis of multi-component complex systems, such as neural systems, identifying groups of units that share similar functionality will aid understanding of the underlying structures of the system.
Shohei Hidaka, Masafumi Oizumi
doaj   +1 more source

Single Machine Vector Scheduling with General Penalties

open access: yesMathematics, 2021
In this paper, we study the single machine vector scheduling problem (SMVS) with general penalties, in which each job is characterized by a d-dimensional vector and can be accepted and processed on the machine or rejected.
Xiaofei Liu, Weidong Li, Yaoyu Zhu
doaj   +1 more source

Optimal design and operation of damping controllers in PV–wind integrated sustainable energy grids considering system uncertainties

open access: yesIET Renewable Power Generation, 2023
This paper aims to present an optimization method for the best bus selection (BBS) in the large‐scale power systems in order to send the input signals to the damping controllers.
Mohsen Darabian   +2 more
doaj   +1 more source

Constrained Path Search with Submodular Function Maximization

open access: yesIEEE International Conference on Data Engineering, 2022
In this paper, we study the problem of constrained path search with submodular function maximization (CPS-SM). We aim to find the path with the best submodular function score under a given constraint (e.g., a length limit), where the submodular function ...
Xuefeng Chen   +6 more
semanticscholar   +1 more source

Approximability of Monotone Submodular Function Maximization under Cardinality and Matroid Constraints in the Streaming Model [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2020
Maximizing a monotone submodular function under various constraints is a classical and intensively studied problem. However, in the single-pass streaming model, where the elements arrive one by one and an algorithm can store only a small fraction of ...
Chien-Chung Huang   +3 more
semanticscholar   +1 more source

Streaming Algorithms for News and Scientific Literature Recommendation: Monotone Submodular Maximization With a $d$ -Knapsack Constraint

open access: yesIEEE Access, 2018
Submodular optimization plays a significant role in combinatorial problems, since it captures the structure of the edge cuts in graphs, the coverage of sets, and so on. Many data mining and machine learning problems can be cast as submodular maximization
Qilian Yu, Li Xu, Shuguang Cui
doaj   +1 more source

A Min-Max . . . Functions and Its Implications [PDF]

open access: yes, 2014
A. Huber and V. Kolmogorov (ISCO 2012) introduced a concept of k-submodular function as a generalization of ordinary submodular (set) functions and bisubmodular functions and obtained a min-max theorem for minimization of k-submodular functions.
Satoru Fujishige, Shin-ichi Tanigawa
core   +2 more sources

SFExt-PGAbs: Two-Stage Summarization Model for Long Document

open access: yesJisuanji kexue yu tansuo, 2021
Aiming at the fluency problem of extractive method, the accuracy problem of abstractive method, and the important information missing problem caused by truncating the original document before document encoding, this paper proposes a two-stage long ...
ZHOU Weixiao, LAN Wenfei, XU Zhiming, ZHU Rongbo
doaj   +1 more source

Constrained robust submodular sensor selection with application to multistatic sonar arrays

open access: yesIET Radar, Sonar & Navigation, 2017
The authors develop a framework to select a subset of sensors from a field in which the sensors have an ingrained independence structure. Given an arbitrary independence pattern, the authors construct a graph that denotes pairwise independence between ...
Thomas Powers   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy