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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

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Communication Lower Bound in Convolution Accelerators

Communication Lower Bound in Convolution Accelerators

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IEEE Symposium on High-Performance computer architecture

作者： Xiaoming Chen Yinhe Han Yu Wang Center for Intelligent Computing Systems State Key Laboratory of Computer Architecture Institute of Computing Technology Chinese Academy of Sciences Beijing China University of Chinese Academy of Sciences Beijing China Department of Electronic Engineering Tsinghua University Beijing China

ISBN: (数字)9781728161495

ISBN: (纸本)9781728161501

In current convolutional neural network (CNN) accelerators, communication (i.e., memory access) dominates the energy consumption. This work provides comprehensive analysis and methodologies to minimize the communication for CNN accelerators. For the off-chip communication, we derive the theoretical lower bound for any convolutional layer and propose a dataflow to reach the lower bound. This fundamental problem has never been solved by prior studies. The on-chip communication is minimized based on an elaborate workload and storage mapping scheme. We in addition design a communication-optimal CNN accelerator architecture. Evaluations based on the 65nm technology demonstrate that the proposed architecture nearly reaches the theoretical minimum communication in a three-level memory hierarchy and it is computation dominant. The gap between the energy efficiency of our accelerator and the theoretical best value is only 37-87%.

关键词： System-on-chip Convolution Random access memory Convolutional codes Memory management Microsoft Windows Kernel

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Corrigendum to “Optimization of 3D hydromagnetic Casson fluid flow over a permeable stretching surface using RSM and AI” [J. Radiat. Res. Appl. Sci. 18/2 101554]

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Journal of Radiation Research and Applied Sciences 2025年

作者： P. Lekkala V. Sannu P.K.D.N. Murthy V.V. Sibyala Charankumar Ganteda Muhammad Amer Qureshi Kamel Guedri Syed M. Hussain Abdulrazak H. Almaliki Mustafa Bayram Department of Mathematics Sai Rajeswari Institute of Technology Proddatur 516360 A.P India Department of Mathematics Vignan's Foundation for Science Technology and Research Vadlamudi Guntur 522213 A.P India Adithya College of Engineering and Technology Bengalore Karnataka India Department of Mathematics School of Applied Sciences REVA University Bengaluru Karnataka India Department of Mathematics Koneru Lakshmaiah Education Foundation Vaddeswaram 522302 Andhra Pradesh India Department of Mathematical and Physical Sciences College of Arts and Sciences University of Nizwa Nizwa Sultanate of Oman Mechanical Engineering Department College of Engineering and Architecture Umm Al-Qura University P. O. Box 5555 Makkah 21955 Saudi Arabia Department of Mathematics Faculty of Science Islamic University of Madinah Madinah 42351 Saudi Arabia Department of Civil Engineering College of Engineering Taif University Taif 21944 Saudi Arabia Department of Computer Engineering Biruni University 34010 Istanbul Turkey

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Crack identification using extended IsoGeometric analysis and particle swarm optimization 7th

Crack identification using extended IsoGeometric analysis an...

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7th International Conference on Fracture Fatigue and Wear, FFW 2018

作者： Khatir, Samir Wahab, Magd Abdel Benaissa, Brahim Köppen, Mario Department of Electrical Energy Metals Mechanical Constructions and Systems Faculty of Engineering and Architecture Ghent University Ghent Belgium Graduate School of Life Science and Systems Engineering Kyushu Institute of Technology Kitakyushu Japan Graduate School of Computer Science and Systems Engineering Kyushu Institute of Technology Kitakyushu Japan

ISBN: (纸本)9789811304101

The eXtended isogeometric analysis (X-IGA) combined with Particle swarm optimization (PSO) is used for crack identification in twodimensional linear elastic problems based on inverse problem. The application of fracture mechanics test under mode II loading is performed. The X-IGA possesses the advantages of the combination between eXtended Finite Element Method (X-FEM) and the Isogeometric Analysis (IGA). The objective function minimizes the gap between the calculated and measured displacements. Convergence studies at various positions of crack on the plate are calculated and the results shows that the proposed technique can detect damage with minimum accuracy 95% for the position and maximum accuracy 98%. © Springer Nature Singapore Pte Ltd. 2019.

关键词： Inverse problem PSO and crack identification and plate 2D XIGA

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Optimal Eco-driving Control of Autonomous and Electric Trucks in Adaptation to Highway Topography: Energy Minimization and Battery Life Extension

arXiv

引用

arXiv 2020年

作者： Zhang, Yongzhi Qu, Xiaobo Tong, Lang The College of Mechanical and Vehicle Engineering Chongqing University Chongqing400044 China The Department of Architecture and Civil Engineering Chalmers University of Technology Gothenburg41296 Sweden The School of Electrical and Computer Engineering Cornell University IthacaNY14853 United States

This paper develops a model to plan energy-efficient speed trajectories of electric trucks in real time by taking into account the information of topography and traffic ahead of the vehicle. In this real time control model, a novel state-space model is first developed to capture vehicle speed, acceleration, and state of charge. An energy minimization problem is then formulated and solved by an alternating direction method of multipliers (ADMM) that exploits the structure of the problem. A model predictive control (MPC) framework is further employed to deal with topographic and traffic uncertainties in real-time. An empirical study is finally conducted on the performance of the proposed eco-driving algorithm and its impact on battery degradation. The simulation results show that the energy consumption by using the developed method is reduced by up to 5.05%, and the battery life extended by more than 100% compared to benchmarking solutions. Copyright © 2020, The Authors. All rights reserved.

关键词： Topography

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SSMTL++: Revisiting self-supervised multi-task learning for video anomaly detection

arXiv

引用

arXiv 2022年

作者： Barbalau, Antonio Ionescu, Radu Tudor Georgescu, Mariana-Iuliana Dueholm, Jacob Ramachandra, Bharathkumar Nasrollahi, Kamal Khan, Fahad Shahbaz Moeslund, Thomas B. Shah, Mubarak Department of Computer Science University of Bucharest 14 Academiei Street Bucharest010014 Romania SecurifAI 21D Mircea Voda Bucharest030662 Romania MBZ University of Artificial Intelligence Abu Dhabi Masdar City United Arab Emirates Department of Architecture Design and Media Technology Aalborg University Rendsburggade 14 Aalborg9000 Denmark Milestone Systems Banemarksvej 50C Brøndby 2605 Denmark Geopipe Inc 460 W 51st New York CityNY10019 United States Linköping University Linköping581 83 Sweden University of Central Florida OrlandoFL32816 United States

A self-supervised multi-task learning (SSMTL) framework for video anomaly detection was recently introduced in literature. Due to its highly accurate results, the method attracted the attention of many researchers. In this work, we revisit the self-supervised multi-task learning framework, proposing several updates to the original method. First, we study various detection methods, e.g. based on detecting high-motion regions using optical flow or background subtraction, since we believe the currently used pre-trained YOLOv3 is suboptimal, e.g. objects in motion or objects from unknown classes are never detected. Second, we modernize the 3D convolutional backbone by introducing multi-head self-attention modules, inspired by the recent success of vision transformers. As such, we alternatively introduce both 2D and 3D convolutional vision transformer (CvT) blocks. Third, in our attempt to further improve the model, we study additional self-supervised learning tasks, such as predicting segmentation maps through knowledge distillation, solving jigsaw puzzles, estimating body pose through knowledge distillation, predicting masked regions (inpainting), and adversarial learning with pseudo-anomalies. We conduct experiments to assess the performance impact of the introduced changes. Upon finding more promising configurations of the framework, dubbed SSMTL++v1 and SSMTL++v2, we extend our preliminary experiments to more data sets, demonstrating that our performance gains are consistent across all data sets. In most cases, our results on Avenue, ShanghaiTech and UBnormal raise the state-of-the-art performance bar to a new level. Copyright © 2022, The Authors. All rights reserved.

关键词： Distillation

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Mixed reality architecture in space habitats 70

Mixed reality architecture in space habitats

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70th International Astronautical Congress, IAC 2019

作者： Basu, Tamalee Bannova, Olga Camba, Jorge D. Sasakawa International Center for Space Architecture University of Houston 4800 Calhoun Rd HoustonTX77004 United States Department of Computer Graphics Technology Purdue University 401 N Grant St West LafayetteIN47907 United States

From assisting with assembling the Orion capsule to using highly immersive virtual environments for astronaut training, MR technologies provide a powerful mechanism to alter the perception of the physical world and deliver realistic personalized visual stimuli to users. In this paper, we discuss a novel strategy to utilize MR technologies as a design element to enhance the interior architecture of the space habitat and enrich the inhabitants' personal experience. We discuss two scenarios that entail long-duration missions as well as a customized experience for space tourists in the Low Earth Orbit (LEO). A series of spacecraft volumetric studies of the ergonomics associated with the application of MR technologies are reported. Physical, virtual and combined experiences are mapped within the volumes with respect to crew ConOps. The experiences are then analyzed and translated to architectural design requirements that inform criteria for the development of personalized MR- based interventions. For the first scenario, NASA's 500 days on the surface of Mars mission is considered, which requires 600 additional days in microgravity transit inside the Deep Space Transfer vehicle, a 7.2 m wide hard-shell module. In this scenario, MR experiences are used as a stress countermeasure to help a crew of four to sustain psychological and behavioral health, maintain productivity, and stimulate teamwork and performance. This is accomplished by providing novelty in the habitat as well as designing content that can increase the volumetric perception of the environment. The second scenario is presented in the context of space tourism where habitats with minimum physical interior design elements can be transformed into comfortable habitable personal environments. Bigelow Space Operations' B330 was selected as a reference site for a 12-day LEO tourism mission. We discuss a design approach that provides tourists with a high level of comfort by using projection-based MR technologies to cus

关键词： Mixed reality

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Bandwidth-Aware Last-Level Caching: Efficiently Coordinating Off-Chip Read and Write Bandwidth

Bandwidth-Aware Last-Level Caching: Efficiently Coordinating...

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

作者： Mainak Chaudhuri Jayesh Gaur Sreenivas Subramoney Department of Computer Science and Engineering Indian Institute of Technology Kanpur Processor Architecture Research Lab Intel Corporation

The last two decades have witnessed a large number of proposals on the last-level cache (LLC) replacement policy aiming to minimize the number of LLC read misses. Another independent large body of work has explored mechanisms to address the inefficiencies arising from the DRAM writes introduced by the LLC replacement policy. These DRAM scheduling proposals, however, leave the LLC replacement policy unchanged and, as a result, miss the opportunity of synergistically shaping and scheduling the DRAM write bandwidth demand. In this paper, we argue that DRAM read and write bandwidth demands must be coordinated carefully from the LLC side and hence, introduce bandwidth-awareness in the LLC policy. Our bandwidth-aware LLC policy proposal enables long uninterrupted stretches of DRAM reads while maintaining the efficiency of the last-level cache and controlling precisely when and for how long writes can demand DRAM bandwidth. Our proposal comfortably outperforms the state-of-the-art eager DRAM write scheduling proposals and bridges 75% of the performance gap between the baseline and a hypothetical system that deploys an unbounded DRAM write buffer.

关键词：

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ICare Designer: A rule-driven layout co-designing system for elderly caring 23

ICare Designer: A rule-driven layout co-designing system for...

引用

23rd IEEE International Conference on computer Supported Cooperative Work in Design, CSCWD 2019

作者： Sun, Yuling Zhou, Jie Yao, Dong He, Liang Department of Computer Science and Technology East China Normal University Shanghai China Shanghai Key Laboratory of Multidimensional Information Processing East China Normal University Shanghai China Izhaohu Co. Ltd. Shanghai China Department of Architecture Tongji University Shanghai China

ISBN: (纸本)9781728103501

In CSCW and related fields, computer supported collaborative design has been used in various fields. Yet, there has been little research focusing on the collaborative context design for elderly caring. For filling this gap, this paper explores a notion of rule-driven layout co-designing system for elderly caring. What makes it distinct from other layout designing system is that it employs hierarchically modularization to store all standardized components that are needed for the aging caring space, and embeds intelligence algorithm into the typical evidence-based design for improving design efficiency and reducing design costs. In this paper, we designed and implemented a prototype called iCare Designer, and conducted a preliminary study to understand how this notion works in reality. While findings of the preliminary study suggest promises of the notion of rule-driven space layout co-designing system, it reveals some challenges this kind of systems to truly work in practices, mainly reflecting in its flexibility and perception to ambient environment. An in-depth discussion is provided in the end. © 2019 IEEE.

关键词： Modular construction

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The static parallel distribution algorithms for hybrid density-functional calculations in HONPAS package

arXiv

引用

arXiv 2020年

作者： Qin, Xinming Shang, Honghui Xu, Lei Hu, Wei Yang, Jinlong Li, Shigang Zhang, Yunquan State Key Laboratory of Computer Architecture Institute of Computing Technology Chinese Academy of Sciences Beijing China Hefei National Laboratory for Physical Sciences at Microscale Department of Chemical Physics Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of China Hefei Anhui230026 China

Hybrid density-functional calculation is one of the most commonly adopted electronic structure theory used in computational chemistry and materials science because of its balance between accuracy and computational cost. Recently, we have developed a novel scheme called NAO2GTO to achieve linear scaling (Order-N) calculations for hybrid density-functionalsShang et al. (2011). In our scheme, the most time-consuming step is the calculation of the electron repulsion integrals (ERIs) part. So how to create an even distribution of these ERIs in parallel implementation is an issue of particular importance. Here, we present two static scalable distributed algorithms for the ERIs computation. Firstly, the ERIs are distributed over ERIs shell pairs. Secondly, the ERIs is distributed over ERIs shell quartets. In both algorithms, the calculation of ERIs is independent of each other, so the communication time is minimized. We show our speedup results to demonstrate the performance of these static parallel distributed algorithms in the Hefei Order-N packages for ab initio simulations (HONPAS)Qin et al. (2014). Copyright © 2020, The Authors. All rights reserved.

关键词： Calculations

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