检索结果-内蒙古大学图书馆

Lightweight Task-Oriented Semantic Communication Empowered by Large-Scale AI Models

IEEE Transactions on Vehicular Technology 2025年

作者： Liu, Chuanhong Guo, Caili Yang, Yang Chen, Mingzhe Quek, Tony Q. S. Beijing University of Posts and Telecommunications Beijing Key Laboratory of Network System Architecture and Convergence School of Information and Communication Engineering Beijing100876 China Beijing University of Posts and Telecommunications Beijing Laboratory of Advanced Information Networks School of Information and Communication Engineering Beijing100876 China University of Miami Department of Electrical and Computer Engineering Institute for Data Science and Computing Coral GablesFL United States Singapore University of Technology and Design Dept. of Information Systems Technology and Design 487372 Singapore

Recent studies have focused on leveraging large-scale artificial intelligence (LAI) models to improve semantic representation and compression capabilities. However, the substantial computational demands of LAI models pose significant challenges for real-time communication scenarios. To address this, this paper proposes utilizing knowledge distillation (KD) techniques to extract and condense knowledge from LAI models, effectively reducing model complexity and computation latency. Nevertheless, the inherent complexity of LAI models leads to prolonged inference times during distillation, while their lack of channel awareness compromises the distillation performance. These limitations make standard KD methods unsuitable for task-oriented semantic communication scenarios. To address these issues, we propose a fast distillation method featuring a pre-stored compression mechanism that eliminates the need for repetitive inference, significantly improving efficiency. Furthermore, a channel adaptive module is incorporated to dynamically adjust the transmitted semantic information based on varying channel conditions, enhancing communication reliability and adaptability. In addition, an information bottleneck-based loss function is derived to guide the fast distillation process. Simulation results verify that the proposed scheme outperform baselines in term of task accuracy, model size, computation latency, and training data requirements. © 1967-2012 IEEE.

关键词： NP-hard

来源：评论

学校读者我要写书评

暂无评论

Conditional techniques for low power consumption flip-flops

Conditional techniques for low power consumption flip-flops

引用

作者： Nedovic, Nikola Aleksic, Marko Oklobdzija, Vojin G. Department of Electrical and Computer Engineering Advanced Computer System Design Laboratory University of California Davis CA 95616 United States

ISBN: (纸本)0780370570

Conditional capture and conditional precharge techniques for high-performance flip-flops are reviewed in terms of power and delay. It is found that application of conditional techniques can improve Energy-Delay Product for up to 14% for 50% input activity and save more than 50% in power consumption for quiet input. This property makes conditional methods suitable for high-performance VLSI systems. © 2001 IEEE.

关键词： Flip flop circuits

来源：评论

学校读者我要写书评

暂无评论

On Simulation for Fuzzy Control on Oxygen Concentration of the Mixed Air Supplied by Breathing Adjuster 34

On Simulation for Fuzzy Control on Oxygen Concentration of t...

引用

第三十四届中国控制会议

作者： SUN Hao WANG Shou-jun SUN Qing-lin Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System The College of Mechanical Engineering Tianjin University of Technology The College of Computer and Control Engineering Nankai University Tianjin Key Laboratory of Intelligent Robotics

ISBN: (纸本)9781467374439

The breathing adjuster is the core component of life support system of an aircraft and it is very important to control the valve to make the breathing adjuster supply the pilot the mixed air with the suitable oxygen concentration. In this paper the mathematical model, which describes the relation between the opening degree of the valve of the breathing adjuster and the flight altitude of the aircraft, is set up through analyzing requirement of aviation physiology and working principles of the breathing adjuster. Then a fuzzy controller is designed to control the opening degree of the valve in order to make the breathing adjuster supply to the pilot the mixed air with suitable oxygen concentration. Finally MATLAB Simulink is employed to verify the feasibility and validity of the fuzzy controlling approach. The results of simulating experiments show that the fuzzy control approach proposed in this paper can make the breathing adjuster supply the mixed air with suitable oxygen concentration to the pilot boarded on an aircraft.

关键词： Breathing adjuster,Oxygen concentration,the opening degree of the valve,Fuzzy control,Simulation

来源：评论

学校读者我要写书评

暂无评论

Strain-rate Dependency of Axonal Tolerance for Uniaxial Stretching 61

Strain-rate Dependency of Axonal Tolerance for Uniaxial Stre...

引用

61st SAE Stapp Car Crash Conference, STAPP 2017

作者： Nakadate, Hiromichi Kurtoglu, Evrim Furukawa, Hidenori Oikawa, Shoko Aomura, Shigeru Kakuta, Akira Matsui, Yasuhiro Graduate School of System Design Tokyo Metropolitan Univers Japan Advanced Course of Mechanical and Computer Systems Engineeri Japan National Traffic Safety and Environment Laboratory Japan

This study aims to clarify the relation between axonal deformation and the onset of axonal injury. Firstly, to examine the influence of strain rate on the threshold for axonal injury, cultured neurons were subjected to 12 types of stretching (strains were 0.10, 0.15, and 0.20 and strain rates were 10, 30, 50, and 70 s-1). The formation of axonal swellings and bulbs increased significantly at strain rates of 50 and 30 s-1 with strains of 0.15 and 0.20, respectively, even though those formations did not depend on strain rates in cultures exposed to a strain of 0.10. Then, to examine the influence of the strain along an axon on axonal injury, swellings were measured at every axonal angle in the stretching direction. The axons that were parallel to stretching direction were injured the most. Finally, we proposed an experimental model that subjected an axon to more accurate strain. This model observed the process of axonal injury formation by detecting the same neuron before and after stretching. These results suggest that the strain-rate dependency of axonal tolerance is induced by a higher magnitude of loading strain and an experiment focusing on axonal strain is required for obtaining more detailed injury criteria for an axon. © Copyright 2017 The Stapp Association.

关键词： Strain rate

来源：评论

学校读者我要写书评

暂无评论

Nonlinear Deep Subspace Network for Micro-expression Recognition 3

Nonlinear Deep Subspace Network for Micro-expression Recogni...

引用

3rd Workshop on Facial Micro-Expression: advanced Techniques for Multi-Modal Facial Expression Analysis, FME 2023

作者： Feng, Weijia Xu, Manlu Chen, Yuanxu Wang, Xiaofeng Guo, Jia Dai, Lei Wang, Nan Zuo, Xinyu Li, Xiaoxue College of Computer and Information Engineering Tianjin Normal University Tianjin China Ping An Technology Shenzhen China Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control Tianjin University of Technology Tianjin China

ISBN: (纸本)9798400702853

Deep learning (DL) models have been widely studied in the field of micro-expression recognition (MER). However, micro-expressions (MEs) suffer from small number of samples and difficulty in extracting subtle and transient features, resulting in limited improvement in the recognition performance. In addition, DL models are prone to overfitting problems and are difficult to extract discriminative features of facial actions from ME images or sequences. To address these issues, we propose a MER method that combines a nonlinear deep subspace network and optical flow features. Firstly, facial motion features are captured using optical flow computation, and then the optical flow features are input into a kernel principal component analysis network (KPCANet) to further learn deeper spatio-temporal features. Finally, a linear support vector machine (SVM) is used for ME classification. Experiments conducted on four public spontaneous ME datasets including SMIC, CASME, CASME II and SAMM validate the effectiveness of the proposed method. The experimental results demonstrate that the proposed method achieves even better recognition performance compared to existing state-of-the-art MER methods. © 2023 ACM.

关键词： Principal component analysis

来源：评论

学校读者我要写书评

暂无评论

Dynamic flip-flop with improved power

Dynamic flip-flop with improved power

引用

IEEE International Conference on computer design: VLSI in computers and Processors, (ICCD)

作者： N. Nedovic V.G. Oklobdzija Advanced Computer System Design Laboratory Department of Electrical and Computer Engineering University of California Davis CA USA

An improved design of a dynamic flip-flop is presented. The proposed design overcomes the problem of the glitch at the output and improves power-delay product for about 27%, while preserving logic embedding property. This is accomplished by equalizing the t/sub pLH/ and t/sub pHL/ of the flip-flop and careful design of keeper elements in the circuit. New design introduces insignificant area increase.

关键词： Flip-flops Delay Logic Clocks Energy consumption MOSFETs Latches Topology Power engineering computing Laboratories

来源：评论

学校读者我要写书评

暂无评论

Conditional techniques for low power consumption flip-flops

Conditional techniques for low power consumption flip-flops

引用

IEEE International Conference on Electronics, Circuits and systems (ICECS)

作者： N. Nedovic M. Aleksic V.G. Oklobdzija Department of Electrical and Computer Engineering Advanced Computer System Design Laboratory University of California Davis CA USA

Conditional capture and conditional precharge techniques for high-performance flip-flops are reviewed in terms of power and delay. It is found that application of conditional techniques can improve energy-delay product for up to 14% for 50% input activity and save more than 50% in power consumption for quiet input. This property makes conditional methods suitable for high-performance VLSI systems.

关键词： Energy consumption Flip-flops Clocks Delay Very large scale integration Sampling methods Power engineering computing Laboratories Application software Cooling

来源：评论

学校读者我要写书评

暂无评论

Hybrid latch flip-flop with improved power efficiency

Hybrid latch flip-flop with improved power efficiency

引用

Symposium on Integrated Circuits and systems design (SBCCI)

作者： N. Nedovic V.G. Oklobdzija Advanced Computer System Design Laboratory Department of Electrical and Computer Engineering University of California Davis CA USA

An improved design of a hybrid latch flip-flop is presented. The proposed design overcomes the problem of the glitch at the output and reduces the power consumption and delay of the circuit resulting in a total power-delay-product improvement of about 20%. It also exhibits better soft-clock edge properties compared to the original circuit. This is accomplished by careful design of keeper elements and introducing the feedback path to suppress unnecessary transitions in the circuit. The new design introduces an insignificant area increase.

关键词： Flip-flops Latches Energy consumption Delay Feedback circuits Power dissipation Clocks Power engineering computing Laboratories State feedback

来源：评论

学校读者我要写书评

暂无评论

Research on Task Scheduling Algorithms for Cloud-Edge Collaboration 19th

Research on Task Scheduling Algorithms for Cloud-Edge Collab...

引用

19th EAI International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness, QShine 2023

作者： Lu, Shuai Zhou, Haibo Zhao, Shuaishuai Xu, Wangbei Fang, Kai Tianjin300384 China Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control School of Mechanical Engineering Tianjin University of Technology Tianjin300384 China College of Mathematics and Computer Sciences Zhejiang A&F University Hangzhou311300 China

ISBN: (纸本)9783031651229

With the advent of the 5G era, the development of IoT technology has been accelerated. Due to the continuous increase in the amount of data waiting to be processed from the edge, edge nodes may struggle to handle such a vast amount of data. Therefore, the technology of cloud-edge collaboration has emerged, and how to achieve cloud-edge collaborative task scheduling has become a current research hotspot. This article provides a detailed exposition of the relevant work on task scheduling in the cloud-edge environment, and outlines the common optimization objectives in the cloud-edge collaboration scenario. The methods used to solve task scheduling problems are classified and summarized, including heuristic, heuristic algorithm based on linear programming, and meta-heuristic algorithms. The advantages and disadvantages of each algorithm are analyzed. Finally, the development trends of large-scale task scheduling in the cloud-edge environment are discussed, providing valuable insights for achieving real-time performance, efficiency, and energy conservation in the Internet of Things. © ICST Institute for computer Sciences, Social Informatics and Telecommunications Engineering 2024.

关键词： Scheduling algorithms

来源：评论

学校读者我要写书评

暂无评论

Maximizing higher derivatives of unknown maps with stochastic extremum seeking

Maximizing higher derivatives of unknown maps with stochasti...

引用

American Control Conference

作者： Greg Mills Miroslav Krstic Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System Tianjin University of Technology Tianjin China College of Computer National University of Defense Technology Changsha China

ISBN: (纸本)9781467386838

We present a stochastic generalization to the scalar Newton-based extremum seeking algorithm which through measurements of an unknown map, maximizes the map's higher derivatives. The proposed method perturbs the estimate of the optimal parameter with the sinusoid of Brownian motion about the boundary of a circle. Then by properly demodulating the map output of the randomly perturbed estimate, the extremum seeking algorithm maximizes the nth derivative only through measurements of the map. The Newton-based extremum seeking approach removes the dependence of the convergence rate on the unknown Hessian of the higher derivative, an effort to improve performance over standard gradient-based extremum seeking. Our design stems from the existing multivariable Newton-based extremum seeking algorithm where a differential Riccati equation estimates the inverse Hessian of the function to be maximized. Algebraically computing a direct estimate of the inverse Hessian is susceptible to singularity, where-as employing the Riccati filter removes that potential. We prove local stability of the algorithm for general nonlinear static maps via stochastic averaging theory developed for extremum seeking.

关键词： Heuristic algorithms Convergence Stability analysis Optimization Demodulation Markov processes Demodulation Heuristic algorithms extremum seeking algorithm Markov chain extremum values Stability analysis Converge maps Riccati equations Hessian RATE DEPENDENCE optimal parameter

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：