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检索条件"任意字段=IEEE International Conference on Distributed Computing in Sensor Systems"

共 30780 条记录，以下是4491-4500 订阅

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OVERLAP LOCAL-SGD: AN ALGORITHMIC APPROACH TO HIDE COMMUNICATION DELAYS IN distributed SGD

OVERLAP LOCAL-SGD: AN ALGORITHMIC APPROACH TO HIDE COMMUNICA...

引用

ieee international conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： Wang, Jianyu Liang, Hao Joshi, Gauri Carnegie Mellon Univ Pittsburgh PA 15213 USA

ISBN: (纸本)9781509066315

distributed stochastic gradient descent (SGD) is essential for scaling the machine learning algorithms to a large number of computing nodes. However, the infrastructures variability such as high communication delay or random node slowdown greatly impedes the performance of distributed SGD algorithm, especially in a wireless system or sensor networks. In this paper, we propose an algorithmic approach named Overlap Local-SGD (and its momentum variant) to overlap communication and computation so as to speedup the distributed training procedure. The approach can help to mitigate the straggler effects as well. We achieve this by adding an anchor model on each node. After multiple local updates, locally trained models will be pulled back towards the synchronized anchor model rather than communicating with others. Experimental results of training a deep neural network on CIFAR-10 dataset demonstrate the effectiveness of Overlap Local-SGD. We also provide a convergence guarantee for the proposed algorithm under non-convex objective functions.

关键词： Local SGD communication efficient training federated learning

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A Merge Collision Prediction TDMA-MAC Protocol in distributed VANET

A Merge Collision Prediction TDMA-MAC Protocol in Distribute...

引用

2021 international conference on Information, Cybernetics, and Computational Social systems, ICCSS 2021

作者： Zhang, Chang-Yue Han, Shi-Yuan Zhou, Jin Li, Bao-Zhu Yu, Xiao-Jie Yao, Kang University of Jinan Shandong Provincial Key Laboratory of Network Based Intelligent Computing Jinan250022 China Zhuhai Fudan Innovation Institute Internet of Things and Smart City Innovation Platform Zhuhai518057 China Shandong Provincial Network Security and Infomationization Technology Center Jinan250002 China

ISBN: (纸本)9781665402453

The communication between vehicles has attracted more and more attention in intelligent transportation system(ITS). Due to the rapid movement of vehicles, the topology of network nodes changes rapidly, resulting in collisions between vehicles. Therefore, the design of efficient and reliable media access control protocol is very necessary to solve the communication problem between vehicles. In this paper, a merge collision prediction TDMA-MAC in distributed VANET(MCPMAC) is proposed to solve the merging collision problem. In MCPMAC, when multiple vehicles occupying the same time slot meet within the two hop communication range, one vehicle continues to use the time slot by comparing the time stamp of the vehicle access time slot, and the other vehicles sequentially select the idle time slot to reduce the probability of merging collision between vehicles. Simulation results show MCPMAC protocol has higher reliability and lower number of collisions than the existing MAC protocols. © 2021 ieee.

关键词： Vehicles

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A Survey on Cloud-Based distributed computing System Frameworks

A Survey on Cloud-Based Distributed Computing System Framewo...

引用

2020 international conference on Data Analytics for Business and Industry: Way Towards a Sustainable Economy, ICDABI 2020

作者： Alalawi, Ahmed Al-Omary, Alauddin University of Bahrain College of Information Technology Sakhir Bahrain

ISBN: (纸本)9781728196756

The use of data is increasing steadily in the modern era of technology. That produced the term big data. Many companies are interested in analyzing this data, which amounts to several terabytes. The term distributed computing system appears as an effective technique for analyzing big data. Businesses have sought to use cloud resources to implement distributed computing in order to reduce costs and increase productivity. distributed computing system faces the hurdle of significant material cost for providing related equipment. To avoid the financial cost problem, researchers have developed frameworks and tools for implementing distributed computing operations by using the redundant resources of cloud computing. This paper presents the advantages and disadvantages of a distributed computing system as well as analyzes traditional systems of distributed computing and concludes with a survey of frameworks for using cloud computing resources to implement distributed computing system operations at a lower cost. © 2020 ieee.

关键词： MapReduce

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Microarchitecture Optimization for Asynchronous Stochastic computing

Microarchitecture Optimization for Asynchronous Stochastic C...

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ieee international conference on Electronics, Circuits and systems (ICECS)

作者： Rahul Sreekumar Mircea R. Stan University of Virginia Charlottesville USA

Asynchronous Stochastic computing (ASC) is a branch of clockless Stochastic computing methodology that encodes signals as a digital asynchronous pulse-width modulated stream that carries information within it's duty cycle and frequency. In this paper a comprehensive study into the energy and frequency optimization of Asynchronous Stochastic computing circuits is presented. Design knobs that affect characteristics of the stream are identified and, by evaluating their sensitivity, a Pareto optimization strategy is derived. In distributed computing systems such as wearable sensors, dynamic throughput scaling is often required. The insights from the Pareto analysis, are utilized to design a scalable throughput Asynchronous Stochastic computing Arithmetic unit, that is capable of performing Multiply-Accumulate (MAC) operations. Our simulated results in the design of the arithmetic unit prove the effectiveness of the single optimization problem through an average energy savings of 17- 32% across the two different throughput regions of operation.

关键词： Frequency modulation Sensitivity Microarchitecture Pareto optimization Throughput distributed computing Optimization

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Scalable distributed Data Anonymization

Scalable Distributed Data Anonymization

引用

ieee Annual conference on Pervasive computing and Communications Workshops (PerCom)

作者： Sabrina De Capitani di Vimercati Dario Facchinetti Sara Foresti Gianluca Oldani Stefano Paraboschi Matthew Rossi Pierangela Samarati Università degli Studi di Milano Italy Università degli Studi di Bergamo Italy

ISBN: (纸本)9781665404242;9781665447249

We present an approach for enabling a distributed anonymization process over large collections of sensor data. Our approach anonymizes large datasets (which might not fit in main memory) using an arbitrary number of workers within the Spark framework. We describe how to parallelize the anonymization process through a proper partitioning of the dataset. Our experimental evaluation shows that the proposed approach is scalable and do not affect the quality of the anonymized dataset.

关键词： Pervasive computing Measurement Privacy Visualization conferences Scalability distributed databases

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Energy Efficient Ad-hoc Network with Multicast Tree Topology for Wireless sensor Applications

Energy Efficient Ad-hoc Network with Multicast Tree Topology...

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Mobile Networks and Wireless Communications (ICMNWC), ieee international conference on

作者： Prudhvi Kondapalli Vamsi Krishna Gita Alekhya Paul Mettina Varghese Department of Electronics and Communications SRM Institute of Science and Technology Chennai India

ISBN: (纸本)9781665491129

A severe existential danger to agriculture is being posed by extreme weather patterns and falling forests, which require an evolution of current agricultural systems. Traditional agriculture can become smart agriculture with the aid of the Internet of Things. sensor-based monitoring systems for agriculture can benefit farmers in the long run. A network of physical things called the “Internet of Things” uses networking and sensors to enhance data collecting and exchange. IoT networks, which are less expensive and use less energy, can be distributed over a large population region. We propose an energy-efficient, low-cost wireless network for smart agriculture in this article. Our paper aims to develop a new hybrid topology that is both stable and scalable; additionally, nodes will self-conFigure to form the topology without the need for manual interference. In order to connect to the Internet, we used NodeMCU, a system-on-chip (SOC) that combines a Tensilica L106 32-bit micro controller unit with a Wi-Fi transceiver. By implementing UPnP for our NodeMCUs linked with a tree topology Wi-Fi mesh, we were able to build a multicast tree algorithm. These NodeMCUs will self-discover via SSDP (Simple Service Discovery Protocol), sending a NOTIFY request to the multicast IP on the link, and the master node will determine the position. The mechanism underlying automatic topology forming and node configuration is explored in depth in this paper. This algorithm and topology enables energy efficient and easy to implement sensor networks, which can help in better collection of data, in turn help farmers take informed decisions.

关键词： Smart agriculture Wireless sensor networks Protocols Multicast algorithms Power demand Network topology Ad hoc networks

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A Portable CMOS Based pH sensor 63

A Portable CMOS Based pH Sensor

引用

63rd ieee international Midwest Symposium on Circuits and systems (MWSCAS)

作者： Aslanzadeh, Shaghayegh Smalley, Matthew Hedayatipour, Ava McFarlane, Nicole Univ Tennessee Dept Elect Engn & Comp Sci Knoxville TN 37996 USA

ISBN: (纸本)9781728180588

This paper demonstrates a portable pH sensing system which converts pH to a digital readout. The system consists of a CMOS ISFET pH sensor with discrete analog to digital conversion and display modules. The front end sensor was fabricated in standard 0.5 mu m CMOS technology and an easy to use Arduino microcontroller is used as the computing device. Measurement results have reasonable agreements with the simulations. The average sensitivity in simulation is 46 mV/pH and it is 42 mV/pH based on experimentally extracted capacitance parameters. The design uses a differential ISFET readout circuit with 12 mu W of power consumption at 2 V and 80 mu W of power consumption at 5 V. The portable sensor implemented is 10cm x 16cm, while the main ISFET front end readout occupies a chip area of 0.0093 mm(2). This portable device is suitable for environmental and biomedical applications.

关键词： ISFET pH sensor biochemical voltage-clamped portable device analog to digital converter

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Ransomware as a Service using Smart Contracts and IPFS 2

Ransomware as a Service using Smart Contracts and IPFS

引用

ieee international conference on Blockchain and Cryptocurrency (ieee ICBC)

作者： Karapapas, Christos Pittaras, Iakovos Fotiou, Nikos Polyzos, George C. Athens Univ Econ & Business Sch Informat Sci & Technol Dept Informat Mobile Multimedia Lab Athens Greece

ISBN: (纸本)9781728166803

Decentralized systems, such as distributed ledgers and the InterPlanetary File System (IPFS), are designed to offer more open and robust services. However, they also create opportunities for illegal activities. We demonstrate how these technologies can be used to launch a ransomware as a service campaign. We show that criminals can transact with affiliates and victims without having to reveal their identity. Furthermore, by exploiting the robustness and resilience to churn of IPFS, as well as the decentralized computing capabilities of Ethereum, criminals can remain offline during most procedures, with many privacy guarantees.

关键词： Blockchain distributed Ledger Technologies Ethereum InterPlanetary File System

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Self-organized Set Cover via Nash Equilibrium Learning and Selection

Self-organized Set Cover via Nash Equilibrium Learning and S...

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ieee conference on Decision and Control

作者： Changhao Sun Qingrui Zhou Xiaowei Ma Huaxin Qiu Yuting Feng Jiaxin Liu Qian Xuesen Laboratory of Space Technology China Academy of Space Technology Beijing China Nanjing Mobile Communication & Computing Innovation Institute Nanjing China Flying College Beihang University Beijing China Institute of Telecommunication and Navigation Satellite China Academy of Space Technology Beijing China

ISBN: (数字)9781665467612

ISBN: (纸本)9781665467629

This paper focuses on the weighted set cover problem in networking systems and presents a fully distributed algorithm from the perspective of Nash equilibrium learning and selection. By viewing each set as an agent, we recast the problem as a networked ordinal potential game and classify the resulting Nash equilibrium into two categories. We show that each inferior Nash equilibrium (INE) could always be improved via local action exchange and better approximations could be achieved via self-organized selection among superior Nash equilibria (SNEs). By showing the existence of an improvement path that leads any action profile to an SNE, we prove that our algorithm converges in finite time to a conventional Nash equilibrium, where the joint action is a selected SNE. Comparison experiments with typical methods demonstrate the superiority to the state of the art.

关键词： Wireless sensor networks Surveillance Games Nash equilibrium Approximation algorithms distributed algorithms Convergence

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Optimal Decomposition of Control of distributed Cyber-physical System

Optimal Decomposition of Control of Distributed Cyber-physic...

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ieee international Workshop on Intelligent Data Acquisition and Advanced computing systems: Technology and Applications

作者： Volodymyr Dubovoi Demian Sembrat Mariia Yukhymchuk Vinnytsia National Technical University Vinnytsia

ISBN: (纸本)9781665426060

The article proposes the use of a formal approach to the decomposition of the architecture of a decentralized coordination control system of distributed cyber-physical systems using microservices, which minimizes the cost of its creation and maintenance. This approach is based on the convertion of system gipergraph to optimal bipartite graph by the criterium of minimize interconnection flows and modification of Stoer-Wagner algorithm.

关键词： Costs conferences Data acquisition Microservice architectures Computer architecture Cyber-physical systems Maintenance engineering

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