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international conference on Multimedia computing and systems -Proceedings 1999年 2卷 987-988页

作者： Giuli, D. Pirri, F. Bussotti, P. Univ of Florence Florence Italy

this paper proposes a platform for musical group sessions over the Internet. It has been conceived as an useful instrument for collaborative music developing and enjoying, both at the professional and at the amateur level. It has been designed for music distance learning, as well. the system, that we named Orchestra!, is based on a distributed software architecture and its services are universally accessible through a simple http-client (a browser) and a sound card. Geographical packet-switched network latencies make it impossible to reach a real musical synchronisation among all members of a virtual group. As an alternative, it has been developed a system of progressive and collaborative elaboration of musical audio streams which is insensitive to delays: this idea permits to reproduce live performances as well as recording studio activities.

关键词： Computer music

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2017 international conference on Control, Automation and Information Sciences, ICCAIS 2017

2017 International Conference on Control, Automation and Inf...

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6th international conference on Control, Automation and Information Sciences, ICCAIS 2017

ISBN: (纸本)9781538631140

the proceedings contain 46 papers. the topics discussed include: a decentralized model predictive control scheme for the automatic generation control problem in power systems;a fast mathematical morphology filters on one dimensional sampled signal;a novel multiple adjacent cell tracking approach based on pheromone prediction of ant colony;an approximate optimal chernoff fusion method via importance sampling;base station energy efficiency of D2D device discovery;Cauchy-Schwarz divergence-based distributed fusion with poisson random finite sets;color mood grasping in video by state estimation over color space with particle filter;convolutional neural networks for texture recognition using transfer learning;efficient generalized labeled multi-bernoulli filter for jump Markov system;IMM filtering for vehicle tracking in cluttered environments with glint noise;influence of linear and nonlinear aerodynamic models on parameter identification for aircraft;manifold learning for dimension reduction of electronic nose data;multi-sensor tracking with non-overlapping field for the GLMB filter;multi-target track before detect with labeled random finite set and adaptive correlation filter;occlusion handling for online visual tracking using labeled random set filters;and robust H-infinity tracking control of MIMO nonlinear systems. application to non-isothermal CSTR.

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Proceedings of the Sixth international conference on Parllel and distributed computing, Applications and Technologies (PDCAT'2005): Preface

Parallel and Distributed Computing, Applications and Technol...

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Parallel and distributed computing, Applications and Technologies, PDCAT Proceedings 2005年 2005卷 xxv页

作者： Shen, Hong Nakano, Koji

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Cost-Efficient and Latency-Aware Event Consuming in Workload-Skewed distributed Event Queues 22

Cost-Efficient and Latency-Aware Event Consuming in Workload...

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6th international conference on Cloud and Big Data computing, ICCBDC 2022

作者： Ezzeddine, Mazen Migliorini, Gael Baude, Francoise Huet, Fabrice Université Côte d'Azur CNRS I3S Nice France HighTech Payment Systems Hps Aix En Provence France

ISBN: (纸本)9781450396578

distributed event queues have emerged as a central component in building large scale cloud applications. In distributed event queues, guaranteeing a maximum event processing latency for high percentile of events in a cost-efficient manner is of paramount interest. this is achieved through efficient and accurate solutions to autoscale event consumers to meet the incoming workload. However, most of current solutions to autoscale event consumers are threshold-based that add/remove consumer replicas based on a metric of interest. these autoscalers lack an accurate estimation on the number of replicas that is just enough to keep up with the arrival rate of events and are not cost-efficient. Moreover, threshold-based autoscalers are not designed with workload-skewness in mind. When the workload is skewed few partitions of the distributed queue will receive higher percentile of the events produced. In such cases, the autoscale process must be complemented with a load-aware assignment of event consumer replicas to queue partitions. However, load-aware assignment is not performed by threshold-based autoscalers as they assume a uniform event load across the partitions of the queue. Hence, in this work, we first express the problem of cost-efficient scaling of event consumers to achieve a desired latency as a bin pack problem. this bin pack problem depends on the arrival rate of events, consumption rate of consumers, and on the events backlog in the queues. Next, we show that the process of scaling event consumers in face of skewed workload is performed by a controller/autoscaler and by one of the consumer replicas namely the leader. the controller monitors the cluster state and launches the appropriate number of consumer replicas. Next, the leader consumer performs a load-aware assignment of partitions to consumer replicas. In face of skewed workloads, observed results show order of magnitude gains in terms of latency guarantee as compared to an autoscale methodology that is

关键词： Queueing theory

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Defending against Sybil attacks in sensor networks

Defending against Sybil attacks in sensor networks

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international conference on distributed computing systems Workshop

作者： Qinghua Zhang Pan Wang D.S. Reeves Peng Ning Cyber Defense Laboratory Computer Science Department North Carolina State University Raleigh NC USA

Sybil attack is a harmful threat to sensor networks, in which a malicious node illegally forges an unbounded number of identities to defeat redundancy mechanisms. Digital certificates are a way to prove identities. However, they are not viable in sensor networks. In this paper, we propose a light-weight identity certificate method to defeat Sybil attacks. Our proposed method uses one-way key chains and Merkle hash trees. the method thereby avoids the need for public key cryptography. In addition, the method provides a means for authentication of all data messages. A variant of this method is presented that has lower computational requirements under certain conditions. the security of each method is analyzed, and is as good or better than previously-proposed approaches, with fewer assumptions. the overhead (computation, storage, and messages) is also shown to be acceptable for use in sensor networks.

关键词： Intelligent networks Peer to peer computing Redundancy Authentication Military computing Monitoring Computer networks Identity-based encryption Laboratories Computer science

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Gait Motion Analysis Based on WB-4 sensor with Quaternion Algorithm

Gait Motion Analysis Based on WB-4 Sensor with Quaternion Al...

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6th lEEE Annual international conference on Cyber Technology in Automation, Control and Intelligent systems (ieee-CYBER)

作者： Wang, C. b. Sun, T. y. Duan, L. h. Liu, Q. q. Lu, Z. j. Li, M. Chen, P. f. Wei, C. d. Hou, A. h. Shen, Y. j. Liu, Q. h. Qin, J. Li, W. g. Shi, Q. Wang, Y. l. Long, J. j. Wei, J. j. Zecca, M. Wu, Z. z. Shenzhen Second Peoples Hosp Inst Geriatr 3002 Sungang Xi Rd Shenzhen 518037 Peoples R China Sun Yat Sen Univ Affiliated Hosp 1 Guangzhou Guangdong Peoples R China Shenzhen Inst Geriatr Shenzhen Peoples R China Shenzhen Second Peoples Hosp Shenzhen Peoples R China Hongkong City Univ Hong Kong Hong Kong Peoples R China Waseda Univ Tokyo Japan South China Univ Technol Sch Mech & Automot Engn Guangzhou 510641 Guangdong Peoples R China MK Smart Robot Res Co Ltd Beijing Peoples R China City Univ Hong Kong Mech & Biomed Engn Hong Kong Hong Kong Peoples R China Guangxi Univ Sci & Technol Guangxi Peoples R China Beijing Inst Technol Sch Mechatron Engn Beijing Peoples R China Waseda Univ Takanishi Lab Tokyo Japan Univ Loughborough Sch Elect Elect & Syst Engn Sir David Davis BldgW2-61 Loughborough LE11 3TU Leics England

ISBN: (纸本)9781509027323

Up to now, with the increasing of the elderly population, more and more patients are suffering from hemiplegia. the needs for hemiplegic rehabilitation is increasing quickly. As traditional rehabilitation, each patient must be treated by therapist, one by one. However, because of the different levels of therapists, the rehabilitation cannot be performed as the as the same. Normally, the rehabilitation status diagnosing is still be performed by therapists with the subjective experience. It caused the inhomogeneity on rehabilitation evaluation. It also sometimes causes negative influence on the rehabilitation effect. To solve these problems, many researches focusing on assessing the status of the hemiplegic patients quantitatively are proposed rehabilitation evaluation systems. Rehabilitation motion detection is the basis of the evaluation system, and it requires the participation of therapist. In this paper, a method is presented to detect lower limb motion of hemiplegic patients based on inertial sensor technology. the gesture quaternion of lower limb can be obtained through LPMS. With the matrix and Euler angle changing algorithm, combining with the simplified lower limb motion model, the rotation angle of joint can be computed. Finally, the curve of rotation angle of knee is established.

关键词： Motion analysis

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Testing and Comparing the Performance of Cloud Service Providers Using a Service Broker Architecture 1

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6th European conference on Service-Oriented and Cloud computing, ESOCC 2017

作者： Elango, Divyaa Manimaran Fowley, Frank Pahl, Claus IC4 Dublin City University Dublin Ireland SwSE Free University of Bozen-Bolzano Bolzano Italy

ISBN: (数字)9783319790909

ISBN: (纸本)9783319790893

Service brokers are tools that allow different individual service providers to be integrated. An API can be a mechanism to provide a joint interface. Broker can actually also be use for more than integration. We use a cloud service broker that implements a multi-cloud abstraction API in order to carry out performance comparisons between different cloud services. the broker tool here is a multi-cloud storage API that integrates a number of provided storage services. the library supporting the API is organised into three services, which are a file, a blob and a table service. Using this broker architecture, we developed a performance test scenario to compare the different providers, i.e., to compare a range of storage operations by different providers. © 2018, Springer international Publishing AG, part of Springer Nature.

关键词： distributed database systems

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Analysis and Research of Intelligent Distribution UAV Control System Based on Optical Flow sensor 6th

Analysis and Research of Intelligent Distribution UAV Contro...

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6th international conference on Innovative computing, IC 2023

作者： Sun, Shuai Han, Yanqi Li, Yue Zhao, Wanting Gao, Qifeng Yang, Yang Li, Heng Engineering Training Center Jilin University Changchun China School of Mechanical and Aerospace Engineering Jilin University Changchun China

ISBN: (纸本)9789819920914

UAV (Unmanned Aerial Vehicle) delivery is one of the solutions for logistics companies to improve delivery efficiency in recent years. the GPS and optical motion capture or other positioning methods currently used by distribution UAVs have some issues such as high cost and relatively fixed operating environment. the UAV system based on optical flow sensor can realize the functions of autonomous positioning, real-time obstacle avoidance and hover correction with high precision and low cost, which can solve the shortcomings of traditional positioning methods and can be widely used. Many scholars have already researched UAV systems using optical flow sensors. We summarize the results of previous research on these systems and analyze them in the hope that they can provide development ideas for UAV delivery. © 2023, the Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Unmanned aerial vehicles (UAV)

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Towards a Hybrid UHF RFID and NFC Platform for the Security of Medical Data from a Point of Care 12

Towards a Hybrid UHF RFID and NFC Platform for the Security ...

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ieee 12th international conference on RFID Technology and Applications (RFID-TA)

作者： Bianco, Giulio Maria Raso, Emanuele Fiore, Luca Riente, Alessia Barba, Adina Bianca Miozzi, Carolina Bracciale, Lorenzo Arduini, Fabiana Loreti, Pierpaolo Marrocco, Gaetano Occhiuzzi, Cecilia Univ Roma Tor Vergata Pervas Electromagnet Lab Rome Italy Univ Roma Tor Vergata Dept Elect Engn Rome Italy Univ Roma Tor Vergata NanoBioSensing Lab Rome Italy RADIO6ENSE Srl Rome Italy

ISBN: (数字)9781665465946

ISBN: (纸本)9781665465946

In recent years, body-worn RFID and NFC (near field communication) devices have become one of the principal technologies concurring to the rise of healthcare internet of thing (H-IoT) systems. Similarly, points of care (PoCs) moved increasingly closer to patients to reduce the costs while supporting precision medicine and improving chronic illness management, thanks to timely and frequent feedback from the patients themselves. A typical PoC involves medical sensing devices capable of sampling human health, personal equipment with communications and computing capabilities (smartphone or tablet) and a secure software environment for data transmission to medical centers. Hybrid platforms simultaneously employing NFC and ultra-high frequency (UHF) RFID could be successfully developed for the first sensing layer. An application example of the proposed hybrid system for the monitoring of acute myocardial infarction (AMI) survivors details how the combined use of NFC and UHF-RFID in the same PoC can support the multifaceted need of AMI survivors while protecting the sensitive data on the patient's health.

关键词： Body-area internet of things cybersecurity electrochemical sensor H-IoT system Near Field Communication Radiofrequency Identification

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A price-based adaptive task allocation for Wireless sensor Network

A price-based adaptive task allocation for Wireless Sensor N...

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ieee Internatonal conference on Mobile Adhoc and sensor systems (MASS)

作者： Neda Edalat Wendong Xiao Chen-Khong tham Ehsan Keikha Lee-Ling Ong Department of Electrical and Computer Engineering National University of Singapore Singapore Institute for Infocomm Research Singapore

Applications for wireless sensor networks may be decomposed into the deployment of tasks on different sensor nodes in the network. Task allocation algorithms assign these tasks to specific sensor nodes in the network for execution. Given the resource-constrained and distributed nature of wireless sensor networks (WSNs), existing static (offline) task scheduling may not be practical. therefore there is a need for an adaptive task allocation scheme that accounts for the characteristics of the WSN environment such as unexpected communication delay and node failure. In this paper, we focus on task allocation in WSNs which is performed with the aim of achieving a fair energy balance amongst the sensor nodes while minimizing delay using a market-based architecture. In this architecture, nodes are modeled as sellers communicating a deployment price for a task to the consumer. To address this task allocation problem, proposed price formulation is used as it continuously adapts to changes of the availabilities of resources. this scheme also accommodates for the node failure during task assignment. the centralized and distributed message exchanged mechanisms between the nodes (sellers) and task allocator (consumer) are proposed to determine the winner among the sellers with the goal of reducing overhead and energy consumption. Simulation results show that, compared with a static scheduling scheme with an objective in energy balancing, the proposed scheme adapts to new environmental changes and uncertain network condition more dynamically and achieves a much better performance on energy balancing.

关键词： Wireless sensor networks Delay Resource management Energy consumption Processor scheduling Pricing sensor phenomena and characterization Availability Dynamic scheduling Voltage control

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