MAXIMIZATION

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Community detection on elite mathematicians’collaboration network
《Journal of Data and Information Science》2024年第4期1-23,共23页Yurui Huang Zimo Wang Chaolin Tian Yifang Ma 
supported by grants from the National Natural Science Foundation of China No.NSFC62006109 and NSFC12031005;the 13th Five-year plan for Education Science Funding of Guangdong Province No.2021GXJK349,No.2020GXJK457;the Stable Support Plan Program of Shenzhen Natural Science Fund No.20220814165010001.
Purpose:This study focuses on understanding the collaboration relationships among mathematicians,particularly those esteemed as elites,to reveal the structures of their communities and evaluate their impact on the fie...
关键词：Greedy modularity maximization Infomap Collaboration network Community detection Mathematical awardees 
Robust beamforming design for energy harvesting efficiency maximization in RIS-aided SWIPT system
《Digital Communications and Networks》2024年第6期1804-1812,共9页Xingquan Li Hongxia Zheng Chunlong He Xiaowen Tian Xin Lin 
supported by the Shenzhen Basic Research Program under Grant JCYJ20220531103008018,20231120142345001,20200812112423002;Shenzhen Stability Support Project under Grant 20231127144045001;the Double Height Construction under Grant SZIIT2022KJ023。
This paper investigates Energy Harvesting Efficiency(EHE)maximization problems for Reconfigurable Intelligent Surface(RIS)aided Simultaneous Wireless Information and Power Transfer(SWIPT).This system focuses on the im...
关键词：Energy Harvesting Efficiency(EHE) Reconfigurable Intelligent Surface(RIS) Simultaneous Wireless Information and Power Transfer(SWIPT) Imperfect Channel State Information(CSI) 
Approximation Algorithms for Maximization of k-Submodular Function Under a Matroid Constraint
《Tsinghua Science and Technology》2024年第6期1633-1641,共9页Yuezhu Liu Yunjing Sun Min Li 
supported by the Natural Science Foundation of Shandong Province of China(No.ZR2020MA029).
In this paper,we design a deterministic 1/3-approximation algorithm for the problem of maximizing non-monotone k-submodular function under a matroid constraint.In order to reduce the complexity of this algorithm,we al...
关键词：k-submodular matroid constraint deterministic algorithm randomized algorithm streaming algorithm 
Energy Efficiency Maximization for Cooperative NOMA with Hardware Impairments被引量：1
《China Communications》2024年第12期80-91,共12页Wang Zhengqiang Chang Ruifei Wan Xiaoyu Fan Zifu Duo Bin 
partially supported by the National Natural Science Foundation of China under Grant 61701064;Chongqing Natural Science Foundation under Grant cstc2019jcyj-msxmX0264;Sichuan Science and Technology Program under Grant 2022YFQ0017。
The massive connectivity and limited energy pose significant challenges to deploy the enormous devices in energy-efficient and environmentally friendly in the Internet of Things(IoT).Motivated by these challenges,this...
关键词：block coordinate descent cooperative non-orthogonal multiple access energy efficiency hardware impairments resource allocation 
High-dimensional Bayesian optimization for metamaterial design
《Materials Genome Engineering Advances》2024年第4期44-58,共15页Zhichao Tian Yang Yang Sui Zhou Tian Zhou Ke Deng Chunlin Ji Yejun He Jun S.Liu 
supported by the National Key R&D Program of China No.2021YFB3802103;Open Project of the State Key Laboratory of Metamaterial Electromagnetic Modulation Technology:“Research on Optimization Algorithms for Antenna Wideband Matching Network Parameters”.
Metamaterial design,encompassing both microstructure topology selection and geometric parameter optimization,constitutes a high-dimensional optimization problem,with computationally expensive and time-consuming design...
关键词：high-dimensional bayesian optimization metamaterial design mutual information maximization surrogate modeling trust region bayesian optimization variational autoencoders 
Computation Rate Maximization for Wireless-Powered and Multiple-User MEC System with Buffer Queue
《Journal of Donghua University(English Edition)》2024年第6期689-701,共13页ABDUL Rauf ZHAO Ping 
National Natural Science Foundation of China(No.61902060);Shanghai Sailing Program,China(No.19YF1402100);Fundamental Research Funds for the Central Universities,China(No.2232019D3-51);Open Foundation of State Key Laboratory of Networking and Switching Technology(Beijing University of Posts and Telecommunications,China)(No.SKLNST-2021-1-06)。
Mobile edge computing (MEC) has a vital role in various delay-sensitive applications. With the increasing popularity of low-computing-capability Internet of Things (IoT) devices in industry 4.0 technology, MEC also fa...
关键词：computation rate mobile edge computing(MEC) buffer queue non-convex optimization deep reinforcement learning 
Two-Stage Submodular Maximization Under Knapsack Problem
《Tsinghua Science and Technology》2024年第6期1703-1708,共6页Zhicheng Liu Jing Jin Donglei Du Xiaoyan Zhang 
supported by the National Natural Science Foundation of China(Nos.12131003,12271259,11371001,11771386,and 11728104);the Natural Sciences and Engineering Research Council of Canada(NSERC)(No.06446);the Natural Science Foundation of Jiangsu Province(No.BK20200267);Qinglan Project.
Two-stage submodular maximization problem under cardinality constraint has been widely studied in machine learning and combinatorial optimization.In this paper,we consider knapsack constraint.In this problem,we give n...
关键词：submodular function knapsack constraint MATROID 
Weighted sum power maximization for STAR-RIS-aided SWIPT systems with nonlinear energy harvesting
《Science China(Information Sciences)》2024年第10期339-354,共16页Weiping SHI Cunhua PAN Feng SHU Yongpeng WU Jiangzhou WANG Yongqiang BAO Jin TIAN 
supported in part by National Natural Science Foundation of China(Grant Nos.U22A2002,62071234);Hainan Province Science and Technology Special Fund(Grant No.ZDKJ2021022);Scientific Research Fund Project of Hainan University(Grant No.KYQD(ZR)-21008);Collaborative Innovation Center of Information Technology,Hainan University(Grant No.XTCX2022XXC07);Key Special Project of Technology from Nanjing City Government,China(Grant No.202309010)。
The conventional reconfigurable intelligent surface(RIS)is limited to reflecting incident signals,thereby imposing constraints on the placement of the transmitter and receiver,which hinders achieving comprehensive sig...
关键词：STAR-RIS BEAMFORMING SWIPT alternating optimization nonlinear energy harvesting 
Secure data rate maximization for full-duplex UAV-enabled base station
《Digital Communications and Networks》2024年第5期1387-1393,共7页Chunlong He Xinjie Li Yin Huang Jianzhen Lin Gongbin Qian Xingquan Li 
supported in part by the Shenzhen Basic Research Program under Grant 20200811192821001 and JCYJ20190808122409660,JCYJ20220531103008018;in part by the Guangdong Basic Research Program under Grant 2019A1515110358,2021A1515012097,2020ZDZX1037,2020ZDZX1021;in part by the open research fund of National Mobile Communications Research Laboratory,Southeast University(No.2021D16)。
Unmanned Aerial Vehicle(UAV)is an air base station featuring flexible deployment and mobility.It can significantly improve the communication quality of the system due to its line-of-sight channel connection with groun...
关键词：UAV relay Physical layer security Full-duplex UAV Power optimization Trajectory optimization 
Closed-form guidance law for velocity maximization with impact angle constraint
《Journal of Systems Engineering and Electronics》2024年第5期1295-1303,共9页ZHANG Jiahui WEN Qiuqiu 
Final velocity and impact angle are critical to missile guidance.Computationally efficient guidance law with compre-hensive consideration of the two performance merits is challeng-ing yet remains less addressed.Theref...
关键词：MISSILE guidance law proportional-navigation guidance impact angle 
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