Motion detection using background modeling is a widely used technique in object tracking. To meet the demands of real-time multi-target tracking applications in large and/or high resolution imagery fast parallel algor...
详细信息
this paper characterizes distributed XML processing on networking nodes. XML documents are sent from a client node to a server node through relay nodes, which process the documents before arriving at the server. Accor...
详细信息
ISBN:
(纸本)9789898565082
this paper characterizes distributed XML processing on networking nodes. XML documents are sent from a client node to a server node through relay nodes, which process the documents before arriving at the server. According as the node topology, the XML documents are processed in a pipelining manner or a parallel fashion. We evaluate distributed XML processing with synthetic and realistic XML documents on real and virtual environments. Characterization of well-formedness and grammar validation processing via pipelining and parallel models reveals inherent advantages of the parallelprocessing model.
the proceedings contain 9 papers. the topics discussed include: a comparison of the use of virtual versus physical snapshots for supporting update-intensive workloads;reducing OLTP instruction misses through thread mi...
ISBN:
(纸本)9781450314459
the proceedings contain 9 papers. the topics discussed include: a comparison of the use of virtual versus physical snapshots for supporting update-intensive workloads;reducing OLTP instruction misses through thread migration;KISS-tree: smart latch-free in-memory indexing on modern architectures;making cost-based query optimization asymmetry-aware;hathi: durable transactions for memory using flash;ameliorating memory contention of OLAP operators on GPU processors;x-device query processing by bitwise distribution;GPU join processing revisited;and GiST scan acceleration using coprocessors.
the main contribution of this paper is to show optimal algorithms computing the sum and the prefix-sums on two memory machine models, the Discrete Memory Machine (DMM) and the Unified Memory Machine (UMM). the DMM and...
详细信息
the current trend of multicore and Symmetric Multi-Processor (SMP), architectures underscores the need for parallelism in most scientific computations. Matrix-matrix multiplication is one of the fundamental computatio...
详细信息
Matrix multiplication is an example of application that is both easy to specify and to provide a simple implementation. there exist numerous sophisticated algorithms or very efficient complex implementations. In this ...
详细信息
the proceedings contain 79 papers. the topics discussed include: secure and energy-efficient data aggregation with malicious aggregator identification in wireless sensor networks;dynamic data race detection for correl...
ISBN:
(纸本)9783642246685
the proceedings contain 79 papers. the topics discussed include: secure and energy-efficient data aggregation with malicious aggregator identification in wireless sensor networks;dynamic data race detection for correlated variables;distributed mining of constrained frequent sets from uncertain data;set-to-set disjoint-paths routing in recursive dual-net;redflag: a framework for analysis of kernel-level concurrency;redflag: a framework for analysis of kernel-level concurrency;fault-tolerant routing based on approximate directed routable probabilities for hypercubes;adaptive resource remapping through live migration of virtual machines;anonymous communication over invisible mix rings;lightweight transactional arrays for read-dominated workloads;cascading multi-way bounded wait timer management for moody and autonomous systems;and world-wide distributed multiple replications in parallel for quantitative sequential simulation.
the proceedings contain 79 papers. the topics discussed include: secure and energy-efficient data aggregation with malicious aggregator identification in wireless sensor networks;dynamic data race detection for correl...
ISBN:
(纸本)9783642246494
the proceedings contain 79 papers. the topics discussed include: secure and energy-efficient data aggregation with malicious aggregator identification in wireless sensor networks;dynamic data race detection for correlated variables;distributed mining of constrained frequent sets from uncertain data;set-to-set disjoint-paths routing in recursive dual-net;redflag: a framework for analysis of kernel-level concurrency;redflag: a framework for analysis of kernel-level concurrency;fault-tolerant routing based on approximate directed routable probabilities for hypercubes;adaptive resource remapping through live migration of virtual machines;anonymous communication over invisible mix rings;lightweight transactional arrays for read-dominated workloads;cascading multi-way bounded wait timer management for moody and autonomous systems;and world-wide distributed multiple replications in parallel for quantitative sequential simulation.
In Wireless Multimedia Sensor Networks (WMSNs), data fusion and collaborative in-network processing operations often require effective multimedia synchronization control. Extensive researches have been done in the tra...
详细信息
ISBN:
(纸本)9780769547077
In Wireless Multimedia Sensor Networks (WMSNs), data fusion and collaborative in-network processing operations often require effective multimedia synchronization control. Extensive researches have been done in the traditional networks. Most of these works assume that there exists a powerful synchronization controller in the network. However, for WMSNs, the in-network processing of the multimedia content is usually performed based on the resource-constrained sensors. Traditional synchronization control algorithms fail to run on the low-end hardware platform. In this paper, we propose an adaptive synchronization control scheme with multi-level buffer to address this problem. Main contributions of this paper are as follows. (i) To overcome the resource constraint of WMSNs, we perform the synchronization control in a distributed way by combining the sensors in the stream transmission path. (ii) By evaluating the current network state, we adjust the level number of the buffer adaptively to balance the delay and delay jitter. (iii) through analyzing the buffer state of each level, we propose an efficient packet scheduling scheme to reduce the delay jitter actively. (iv) We implement the proposed scheme and verify its effectiveness in our practical WMSNs platform. the experiment results show that the proposed scheme can maintain the streams synchronization effectively withthe low-end sensors.
We consider the deconvolution of 3D Fluorescence Microscopy RGB images, describing the benefits arising from facing medical imaging problems on modern graphics processing units (GPUs), that are non expensive parallel ...
详细信息
ISBN:
(数字)9783642314643
ISBN:
(纸本)9783642314636;9783642314643
We consider the deconvolution of 3D Fluorescence Microscopy RGB images, describing the benefits arising from facing medical imaging problems on modern graphics processing units (GPUs), that are non expensive parallelprocessing devices available on many up-to-date personal computers. We found that execution time of CUDA version is about 2 orders of magnitude less than the one of sequential algorithm. Anyway, the experiments lead some reflections upon the best setting for the CUDA-based algorithm. that is, we notice the need to model the GPUs architectures and their characteristics to better describe the performance of GPU-algorithms and what we can expect of them.
暂无评论