The main constraint of wireless sensor networks (WSN) in enabling wireless image communication is the high energy requirement, which may exceed even the future capabilities of battery technologies. In this paper we ha...
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ISBN:
(纸本)9789537138127
The main constraint of wireless sensor networks (WSN) in enabling wireless image communication is the high energy requirement, which may exceed even the future capabilities of battery technologies. In this paper we have shown that this bottleneck can be overcome by developing local in-network image processing algorithm that offers optimal energy consumption. Our algorithm is very suitable for intruder detection applications. each node is responsible for processing the image captured by the video sensor, which consists of NxN blocks. If an intruder is detected in the monitoring region, the node will transmit the image for further processing. Otherwise, the node takes no action. Results provided from our experiments show that our algorithm is better than the traditional moving object detection techniques by a factor of (N/2) in terms of energy savings.
Recent advances in neural networks have enabled them to become powerful tools in data processing for tasks such as pattern recognition and classification. This has enabled neural networks to be applied to large-scale ...
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The rapid growth in edge computing devices as part of Internet of Things (IoT) allows real-time access to time-series data from 1000's of sensors. Such observations are often queried to optimize the health of the ...
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ISBN:
(纸本)9783030576752;9783030576745
The rapid growth in edge computing devices as part of Internet of Things (IoT) allows real-time access to time-series data from 1000's of sensors. Such observations are often queried to optimize the health of the infrastructure. Recently, edge storage systems allow us to retain data on the edge rather than moving them centrally to the cloud. However, such systems do not support flexible querying over the data spread across 10-100's of devices. There is also a lack of distributed time-series databases that can run on the edge devices. Here, we propose TorqueDB, a distributed query engine over time-series data that operates on edge and fog resources. TorqueDB leverages our prior work on ElfStore, a distributed edge-local file store, and InfluxDB, a time-series database, to enable temporal queries to be decomposed and executed across multiple fog and edge devices. Interestingly, we move data into InfluxDB on-demand while retaining the durable data within ElfStore for use by other applications. We also design a cost model that maximizes parallel movement and execution of the queries across resources, and utilizes caching. Our experiments on a real edge, fog and cloud deployment show that TorqueDB performs comparable to InfluxDB on a cloud VM for a smart city query workload, but without the associated monetary costs.
The proceedings contain 85 papers. The topics discussed include: multicore programming challenges;assigning blame: mapping performance to high level parallel programming abstractions;a holistic approach towards automa...
ISBN:
(纸本)3642038689
The proceedings contain 85 papers. The topics discussed include: multicore programming challenges;assigning blame: mapping performance to high level parallel programming abstractions;a holistic approach towards automated performance analysis and tuning;an extensible I/O performance analysis framework for distributed environments;grouping MPI processes for partial checkpoint and co migratiion;process mapping for MPI collective communications;stochastic analysis of hierarchical publish/subscribe systems;characterizing and understanding the bandwidth behavior of workloads on multi core processors;hubrid techniques for fast multicore simulation;a methodology to characterize critical section bottlenecks in DSM multiprocessors;dynamic load balancing of matrix-vector multiplications on roadrunner compute nodes;and a unified framework for load distribution and fault-tolerance of application servers.
The proceedings contain 58 papers. The topics discussed include: blades - an emerging system design model for economic delivery of high performance computing;an agent-based infrastructure for parallel java on heteroge...
ISBN:
(纸本)0769517455
The proceedings contain 58 papers. The topics discussed include: blades - an emerging system design model for economic delivery of high performance computing;an agent-based infrastructure for parallel java on heterogeneous clusters;leveraging standard core technologies to programmatically build Linux cluster appliances;clusters as large-scale development facilities;experience in offloading protocol processing to a programmable NIC;selective buddy allocation for scheduling parallel jobs on clusters;performance and implementation of distributed data CPHF and SCF algorithms;trends in high performance computing and using numerical libraries on clusters;first light of the earth simulator and its PC cluster applications;protocol-dependent message-passing performance on Linux clusters;and adaptive message management using hybrid channel model in parallel file system.
Neural network based deep learning algorithm is a study hotspot in artificial intelligence. Moreover, embedded artificial intelligence and mobile computing are becoming more and more important in industry. For these a...
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ISBN:
(纸本)9781538612309
Neural network based deep learning algorithm is a study hotspot in artificial intelligence. Moreover, embedded artificial intelligence and mobile computing are becoming more and more important in industry. For these applications, not only high performance computing is required, but also low power consumption restriction cannot be ignored. DSP has special hardware architecture with characteristics of high performance and low power consumption, which is an ideal computing platform for embedded artificial intelligence. This paper concerns the energy efficiency of DSP under deep learning applications. However, many relative researches are insufficient in application scale and optimization techniques. This research extends application scale and puts forward some optimization methods in detail. Specifically, for the Long Short-Term Memory (LSTM) model based word prediction application, we use TI's high-performance multi-core DSP to accelerate its inference process. We apply a variety of optimization techniques to our initial DSP program. Relative experimental results show that these techniques bring notable performance improvement. Furthermore, we regard the MATLAB program which runs on general CPU and C program which runs on ARM as contrast. In terms of performance and power ratio, DSP is 7.79 times over general CPU and 2.28 times over ARM, which indicates that DSP is a suitable platform for embedded artificial intelligence.
The Sparse Matrix-Vector product (SpMV) is a key operation in engineering and scientific computing. Methods for efficiently implementing it in parallel are critical to the performance of many applications. Modern Grap...
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distributed Denial of Service (DDoS) attacks pose a considerable threat to Cloud Computing, Internet of Things (IoT) and other services offered on the Internet. The victim server receives terabytes of data per second ...
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Developing a personalized, user-centric system to provide a peaceful and a better quality life is one of today's challenging issues. Cognition is the scientific term for "the process of thought". It refe...
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The techniques to achieve data consistency using operational transformation approach to support real-time and non-real-time collaborative editing are discussed. A proposed collaborative editing prototype system called...
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ISBN:
(纸本)0780384822
The techniques to achieve data consistency using operational transformation approach to support real-time and non-real-time collaborative editing are discussed. A proposed collaborative editing prototype system called Adaptive Collaborative Editing (ACE) helps in demonstrating the adaptive data consistency management, adaptive logical time-stamping and adaptive notification. The collaborative environment enables computer-based collaboration in wide-area network. The main objective of a collaborative environment is to allow coherent and consistent object sharing and manipulation by distributed users.
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