检索结果-内蒙古大学图书馆

An Incentive Framework for Task Offloading in Edge Computing Marketplaces under Price Competition

IEEE Transactions on Mobile Computing 2025年

作者： Wu, Liantao Sun, Peng Wang, Zhibo Pang, Xiaoyi Hu, Jiahui Chen, Honglong Yang, Yang Shanghai200062 China Hunan University College of Computer Science and Electronic Engineering Changsha410082 China Zhejiang University College of Computer Science and Technology Hangzhou310027 China College of Control Science and Engineering Qingdao266580 China IoT Thrust Guangzhou510000 China

To efficiently execute tasks, computation resource requesters (CRRs) with limited resources can offload their tasks to nearby computation resource providers (CRPs) with spare computing capacity. These CRPs require appropriate incentives to compensate for their incurred costs when helping process the offloaded tasks. Although several mechanisms have been designed to incentivize CRPs, none of them have investigated the incentive mechanism considering price-setting and price-taking CRPs simultaneously. In this work, we propose an incentive framework for task offloading in the edge computing marketplace that includes both price-setting and price-taking CRPs. We model the CRR's interactions with both types of CRPs as a three-stage Stackelberg game to maximize the profit for both the CRR and CRPs. We prove the existence of a unique subgame perfect equilibrium (SPE) of the formulated game and further develop iterative algorithms for the CRR and price-setting CRPs to achieve the equilibrium. Through the designed algorithms, each CRP does not require complete information about the CRR and other CRPs. Extensive simulations demonstrate that offloading tasks to both price-setting and price-taking CRPs achieves higher profits for the CRR and price-setting CRPs compared to offloading tasks solely to price-setting CRPs. Additionally, the obtained SPE can achieve near-optimal social welfare. © 2002-2012 IEEE.

关键词： Computation offloading

来源：评论

学校读者我要写书评

暂无评论

Dike: Enhancing Fairness and Efficiency in GPU Clusters for Deep Learning

Dike: Enhancing Fairness and Efficiency in GPU Clusters for ...

引用

International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： Bingting Jiang Jing Yao Heyi Mu Xin Su Zhuo Tang College of Computer Science and Electronic Engineering Hunan University Changsha China Hunan Police Academy Changsha China School of Computer Science and Engineering Central South University Changsha China Hunan Police Science and Technology Research Institute Changsha China

ISBN: (数字)9798350368741

ISBN: (纸本)9798350368758

The advent of deep learning (DL) has transformed signal interpretation, enabling more efficient solutions to complex signal processing problems. DL workloads in signal processing typically share the computational resources of GPU clusters. However, the unpredictable nature of the duration of the DL job introduces a dynamic environment in these clusters. Existing GPU cluster schedulers rely heavily on prior knowledge, overlooking the system’s evolving dynamism. Balancing individual job quality of service (QoS) with overall cluster efficiency is critical from a fairness perspective. Unfortunately, most current schedulers prioritize minimizing job completion time (JCT) at the expense of fairness. This paper introduces Dike, an information-agnostic framework. We propose discrete mixed-priority feedback queues and a communication-aware job placement strategy to balance fairness and efficiency. Large-scale trace-driven experiments demonstrate that Dike improves cluster efficiency by over 1.65 × compared to state-of-the-art resource schedulers.

关键词： Deep learning Levee Processor scheduling Computational modeling Knowledge based systems Graphics processing units Quality of service Signal processing Acoustics Speech processing

来源：评论

学校读者我要写书评

暂无评论

High-performance epidermal amplifiers based on highly-uniform carbon nanotube transistors for physiological signal amplification

引用

Applied Materials Today 2025年 44卷

作者： Zhang, Haitao Wang, Yuwei Ye, Huaidong Yu, Xingge Liu, Jie Hu, Jian Luo, Zebang Wang, Hui Zhang, Chunxiao Xiang, Li Pan, Anlian College of Materials Science and Engineering Hunan University Changsha 410082 China College of Electrical and Information Engineering Hunan University Changsha 410082 China Hunan Institute of Advanced Sensing and Information Technology Xiangtan University Xiangtan 411105 China Zhuzhou Times New Material Technology Co. Ltd Zhuzhou 412007 China School of Physics and Electronics Hunan Normal University Changsha 410081 China

The integration of electronics with the human body through epidermal electronics heralds a new era in personalized healthcare, smart diagnostics, and therapeutics. But due to the scarcity in uniform flexible material preparation and high-performance circuits integration strategy, the progression of flexible integrated circuits for bio-signal processing has been slowed down. These gaps restrict the full realization of conformal, skin-mounted integrated circuits for weak physiological signal amplification. Here, we address this challenge by developing high-performance Carbon Nanotubes (CNTs)-based amplifiers on ultrathin plastic substrates. Leveraging a proposed Homogenized Immersion Time Dip-Coating (HITDC) technique for CNTs deposition, we achieve great CNT transistors uniformity with threshold voltage standard variation of only 38 mV, surpassing the uniformity of previously reported flexible CNT devices and even comparable with the industrial silicon transistors. Our CNTs-based amplifiers, incorporating bootstrapped load topology, achieve over 341 voltage gain under D.C. conditions and 41 dB gain with a 200 kHz Gain-Bandwidth Product (GBP) at only 4 V supplied voltage, showcasing high gain, bandwidth, and low power operation. Demonstrated by successful electrocardiogram signal amplification, these amplifiers could advance the development of wearable bioelectronic devices that are capable of high fidelity weak physiological signals processing, paving the way for the next-generation physiological signal amplification and point-of-care diagnostics. © 2025 Elsevier Ltd

关键词： Flexible electronics

来源：评论

学校读者我要写书评

暂无评论

Optimal Coordinated Scheduling of Electric Vehicles and Battery Energy Storage Systems

引用

IEEE Transactions on Consumer Electronics 2025年

作者： Shang, Xiao-Ju Mishra, Yateendra Yang, Yin Liu, Jin-Long Yu, Zu-Guo Tian, Yu-Chu School of Mathematics and Computational Science Xiangtan University Hunan411105 China National Center for Applied Mathematics in Hunan Xiangtan University Hunan411105 China School of Electrical Engineering and Robotics Queensland University of Technology GPO Box 2434 BrisbaneQLD4001 Australia School of Computer Science Queensland University of Technology GPO Box 2434 BrisbaneQLD4001 Australia

Electric vehicles (EVs) and battery energy storage systems (BESS) are rapidly gaining adoption worldwide as emerging consumer electronics products, playing an important role in the transition to sustainable energy. While their integration into power grids offers significant benefits when managed appropriately, it also introduces challenges related to grid stability and efficiency, such as increased peak demand and voltage fluctuations. Effective management of these challenges demands coordinated scheduling of EVs and BESS for both charging from the grid and discharging back into it. Various optimization approaches, including mixed-integer nonlinear programming (MINLP), have been proposed to tackle this problem. However, these approaches often involve numerous binary decision variables, which result in increased computational complexity or even make the computation practically infeasible in large-scale scenarios. To address this issue, this paper formulates the coordinated scheduling of EVs and BESS as a nonconvex constrained optimization problem with significantly fewer decision variables. A Modified Jacobi Proximal Alternating Direction Method of Multipliers (M-ProxJADMM) is proposed to efficiently solve the problem, with guaranteed convergence. Case studies are conducted to validate the effectiveness of the M-ProxJADMM algorithm in optimizing the coordinated scheduling of EVs and BESS. © 1975-2011 IEEE.

关键词： Battery storage

来源：评论

学校读者我要写书评

暂无评论

Robust Hierarchically Porous Hydrogel Solar Evaporators Based on Metal-Phenolic Networks-Coated Carbon Nanotubes

引用

Advanced Functional Materials 2025年

作者： Luo, Banggan Liang, Bo Wang, Jingyu Yang, Zhen Zhang, Xueqian Xiong, Shaohui Yang, Lei Xu, Yuanting Li, Yiwen College of Polymer Science and Engineering National Key Laboratory of Advanced Polymer Materials Sichuan University Chengdu610065 China School of Materials Science and Engineering Hubei University of Automotive Technology Shiyan442002 China School of Materials Science and Engineering Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion Hunan University of Science and Technology Xiangtan411201 China

Solar-driven interfacial evaporation (SIE) emerge as a promising technology to mitigate the worldwide freshwater shortage and energy crisis. Carbon nanotubes (CNTs) are widely used for the construction of hydrogel evaporators. Nevertheless, their evaporation performance is still restricted by their poor dispersibility and strong hydrophilicity. Even worse, the agglomeration of CNTs will diminish the formation of porous structures within the hydrogels and weaken the water transportation, finally resulting in decreased evaporation efficiency. To address those issues, CNTs with improved dispersibility and hydrophilicity are successfully achieved via metal-phenolic coordination chemistry-based interfacial engineering. The resulting metal-phenolic networks (MPN)-coated CNTs are further incorporated into a poly(vinyl alcohol) hydrogel, to synergistically realize superior photothermal performance and water molecule activation. In this way, a robust solar evaporator with hierarchical pores is fabricated for efficient evaporation and mass transportation, which achieves a rate of 2.9 kg m−2 h−1 under 1 sun illumination while maintaining stable operation in long-term and high-salt environments. Actual outdoor experiments and catalytic gel formation in acrylamide hydrogels further confirm the robustness of these MPN-coated CNT-based devices for SIE. It is believed that this study paves a new avenue toward the development of carbon-based hierarchically porous hydrogel evaporators, for efficient and stable solar evaporation. © 2025 Wiley-VCH GmbH.

关键词： Intermodal transportation

来源：评论

学校读者我要写书评

暂无评论

Capacity Maximization for Double Passive/Active RIS-Aided MISO Systems in Multi-User Scenarios

引用

IEEE Internet of Things Journal 2025年

作者： Peng, Xin Liu, Chenyu Yu, Chao Xie, Wenwu Yang, Liang Hunan Institute of Science and Technology School of Information Science and Engineering Yueyang414006 China Hunan Engineering Research Center for Autonomous Data Perception and Processing in Industrial Intelligent Networking Yueyang414006 China Hunan University College of Computer Science and Electronic Engineering Changsha410082 China

This paper addresses the problem of capacity maximization in double reconfigurable intelligent surface (RIS) -aided multiple-input single-output (MISO) systems under multi-user scenarios. A system model is proposed for double RIS-aided MISO configurations, incorporating both passive RIS (PRIS) and active RIS (ARIS). The primary objective is to maximize the minimum channel capacity across all users, and a corresponding optimization problem is formulated to achieve this goal. To overcome the challenges posed by the fractional structure of the non-convex objective function, auxiliary variables are introduced, and the bisection method is utilized. Given the highly coupled and nonconvex nature of the optimization variables, a joint alternating optimization (AO) algorithm is designed based on the bisection method and successive convex approximation (SCA), enabling iterative determination of the beamforming vectors at the base station and the reflection coefficients of RISs. The results indicate that deploying double RISs substantially enhances the system’s channel capacity through reflected links. Notably, the ARIS protocols yield higher performance gains, particularly under scenarios involving high total power and large amplification factors. In multi-user environments, the double RIS configuration significantly outperforms the single RIS setup due to the increased degrees of freedom, especially when supported by ARIS protocols. These findings underscore the substantial potential and advantages of double RIS configurations in complex communication environments. © 2014 IEEE.

关键词： Convex optimization

来源：评论

学校读者我要写书评

暂无评论

Advanced Semantic Communication Techniques for IoT Using Disentangled Information Bottleneck

引用

IEEE Internet of Things Journal 2025年

作者： Xie, Wenwu Xiong, Ming Yang, Liang Wang, Ji Li, Xingwang Yang, Zhihe School of Information Science and Engineering Hunan Institute of Science and Technology Yueyang414006 China Hunan University College of Computer Science and Electronic Engineering Changsha410082 China Central China Normal University College of Physical Science and Technology Department of Electronics and Information Engineering Wuhan430079 China Henan Polytechnic University School of Physics and Electronic Information Engineering Jiaozuo454003 China

This paper explores the impact of source data compression on the performance of task execution at the receiver side of a communication system, and investigates the interference and impact of channel environment variations on semantic coding features. In order to further optimize the performance of the semantic communication model, a semantic communication framework (DIB-DeepSC) based on Disentangled Information Bottleneck (DisenIB) is proposed, which improves the inference accuracy of the model by separating and decoupling irrelevant information in the source data, thus compressing valid information related to downstream task execution to a greater extent, reduced communication overhead. Meanwhile, the influence of the Lagrange multiplier β in the classical Information Bottleneck (IB) framework is eliminated, which avoids the need to manually optimize β several times in the semantic communication model. And the dynamic coding method (DIB-DE) is further designed based on adaptive weights, which can dynamically adjust the coding features according to the channel conditions and enhance the robustness of the model. Numerous experiments show that the proposed DIB-DeepSC framework combined with the DIB-DE dynamic encoding communication scheme possesses better semantic extraction and task inference performance relative to the benchmark methods. This scheme is expected to realize more efficient and reliable semantic transmission in practical communication systems and provides new ideas for developing practical semantic communication systems. © 2014 IEEE.

关键词： Channel coding

来源：评论

学校读者我要写书评

暂无评论

A Novel Zeroing Neural Network for Time-Varying Matrix Pseudoinversion in the Presence of Linear Noises

引用

Tsinghua science and technology 2025年第5期30卷 1911-1926页

作者： Jianfeng Li Linxi Qu Yueming Zhu Zhan Li Bolin Liao College of Computer Science and Engineering Jishou University Jishou China Torch Startups Center of Hunan Province Changsha China Department of Computer Science Swansea University Swansea UK

The computation of matrix pseudoinverses is a recurrent requirement across various scientific computing and engineering domains. The prevailing models for matrix pseudoinverse typically operate under the assumption of a noise-free solution process or presume that any noise present has been effectively addressed prior to computation. However, the concurrent real-time computation of time-varying matrix pseudoinverses holds significant practical utility, while the preemptive preprocessing for noise elimination or reduction may impose supplementary computational overheads on real-time implementations. Different from previous models for solving the pseudoinverse of time-varying matrices, in this paper, a model for solving the pseudoinverse of time-varying matrices using a double-integral structure, called Double-Integral-Enhanced Zeroing Neural Network (DIEZNN) model, is proposed and investigated, which is capable of solving time-varying matrix pseudoinverse while efficiently eliminating the negative effects of linear noise perturbations. The experimental results show that in the presence of linear noise, the DIEZNN model demonstrates better noise suppression performance compared to both the original zeroing neural network model and the Zeroing Neural Network (ZNN) model enhanced with a Li-type activation function. In addition, these models are applied to the control of chaotic system of controllable permanent magnet synchronous motor, which further verifies the superiority of DIEZNN in engineering application.

关键词： Scientific computing Computational modeling Noise Neural networks Control systems Real-time systems Robustness Vectors Trajectory Convergence

来源：评论

学校读者我要写书评

暂无评论

Theoretical and experimental analysis of dynamic characteristics of a two-tube air spring with auxiliary reservoir

引用

Mechanical Systems and Signal Processing 2025年 233卷

作者： Qin, Wu Liao, Xundong Ding, Ruqi Liu, Feifei Zheng, Yiqian Liu, Xiangnan School of Mechatronics & Vehicle Engineering East China Jiaotong University Nanchang China College of Packaging Engineering Jinan University Zhuhai China School of Mechanical Engineering Hunan University of Science and Technology Xiangtan China

Air springs are widely used in new energy vehicles, rail systems, and vibration isolation applications. This paper presents a novel two-tube air spring with an auxiliary reservoir (TASAR), which incorporates unilateral valves for flow control during both stretching and compression strokes. Unlike the conventional one-tube air spring with auxiliary reservoir (OASAR), TASAR allows independent regulation of stiffness and damping for different strokes, thus enhancing vibration isolation performance. The dynamic model of TASAR is developed based on the air state equation, continuity equation, and fluid mechanics, considering the nonlinear characteristics of the rubber bladder and the coupling effects between gas and solid. An equivalent mechanical model, representing stiffness and damping in a series–parallel connection, is also proposed. Critical parameters in the model are identified through experiments, with the relative error in estimating dynamic stiffness and damping coefficient under harmonic excitation found to be less than 15%. Simulation results indicate that TASAR has lower dynamic stiffness and higher stretching damping in the medium frequency range (2–10 Hz), compared to OASAR, achieved by adjusting the diameter and length of the stretching tube, which improves comfort. © 2025 Elsevier Ltd

关键词： Vibration analysis

来源：评论

学校读者我要写书评

暂无评论

Quality Scores Compression of Genomic Sequencing Data: A Comprehensive Review and Performance Evaluation

IEEE Transactions on Computational Biology and Bioinformatic...

引用

IEEE Transactions on Computational Biology and Bioinformatics 2025年第2期22卷 817-831页

作者： Yuansheng Liu Tao Tang Zexuan Zhu Xiangxiang Zeng Quan Zou Keqin Li College of Information Science and Engineering Hunan University Changsha Hunan China School of Mordern Posts Nanjing University of Posts and Telecommunications Nanjing Jiangsu China College of Computer Science and Software Engineering Shenzhen University Shenzhen China Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu China National Supercomputing Center Changsha Hunan China Department of Computer Science State University of NY New Paltz NY USA

Advanced sequencing technologies have profoundly revolutionized biology and produced vast amounts of raw sequencing data during the past decades. The enormous amount of sequencing data proposed significant challenges of data storage and transmission. Compressing a big file into a small file is an encouraging method to tackle these challenges. Howver, it has been found that traditional text data compression algorithms are not well-suited for handing the vast sequencing datasets. Therefore, several algorithms are designed specifically for the efficient compression of sequencing data. Recently, considerable research has been devoted to compressing quality scores stored in the FASTQ format file, resulting in substantial advances in compression performance. Despite these advances, there has been no systematic review and evaluation of these algorithms or software. In this review, we aim to conduct a broad review of the existing quality score compression algorithms. We mainly discuss those algorithms from two categories, i.e., lossless and lossy compression. Additionally, we benchmark the compression performance of 12 tools using 14 real datasets. We anticipate that our review will provide practical guidance for others seeking to design an appropriate algorithm for compressing quality scores.

关键词： Sequential analysis Genomics Bioinformatics Compression algorithms Data compression Image coding Electronic mail Data mining Computational biology Training

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：