Results 11 to 20 of about 476 (159)

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

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

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

Monotonic Decompositions of Submodular Set Functions

open access: yesSIAM Journal on Discrete Mathematics
26 ...
Kristóf Bérczi   +4 more
openaire   +4 more sources

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

Polarity related influence maximization in signed social networks. [PDF]

open access: yesPLoS ONE, 2014
Influence maximization in social networks has been widely studied motivated by applications like spread of ideas or innovations in a network and viral marketing of products.
Dong Li   +5 more
doaj   +1 more source

On Constructing Finite, Finitely Subadditive Outer Measures, and Submodularity

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2008
Given a nonempty abstract set 𝑋, and a covering class 𝒞, and a finite, finitely subadditive outer measure 𝜈, we construct an outer measure 𝜈 and investigate conditions for 𝜈 to be submodular. We then consider several other set functions associated with 𝜈
Charles Traina
doaj   +1 more source

New performance guarantees for the greedy maximization of submodular set functions [PDF]

open access: yesOptimization Letters, 2016
We present new tight performance guarantees for the greedy maximization of nondecreasing submodular set functions. Our main result first provides a performance guarantee in terms of the overlap of the optimal and greedy solutions. As a consequence we improve performance guarantees of Nemhauser, Wolsey and Fisher (1978) and Conforti and Cornuéjols (1984)
Jussi Laitila, Atte Moilanen
openaire   +2 more sources

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