检索结果-内蒙古大学图书馆

5th international conference on Computing, Communication Control and Automation (ICCUBEA)

作者： Rajjak, Shaikh Shakil Abdul Kureshi, A. K. Matoshri Coll Engn & Res Ctr Dept Elect & Telecommun Nasik India Savitribai Phule Pune Univ Pune Maharashtra India

ISBN: (纸本)9781728140421

Object detection and tracking at real time is important and challenging tasks in many computer vision applications such as video robot navigation, surveillance, vehicle navigation, security applications, military applications, patient monitoring system and traffic monitoring system. Object detection includes detecting the object in sequence of videos. In this paper we reviewed the different methods/algorithms for object detection and tracking at real time for high resolution video. Now day's high resolution imaging sensors/cameras is being used in different areas of applications such as security system, in military applications etc. For object detection and tracking in high resolution, greater frame rate requires more time to process a single frame, so it is an extreme challenges for researchers to detect and track target at real time. this sets a demand for fast computational algorithms for real time processing of high resolution videos. Moving object detection and tracking is one of the decisive active areas of research since last decade. In this paper we address and highlight a brief survey or review of various real time object detection and tracking algorithms for high resolution video available in the literature.

关键词： Motion tracking Moving object detection High Definition (HD) Heterogeneous architectures Occlusions Graphical processing Unit

来源：评论

学校读者我要写书评

暂无评论

A parallel dynamic programming algorithm for unranking t-ary trees

引用

5th international conference on parallel processing and Applied Mathematics

作者： Kokosinski, Z Krakow Tech Univ Fac Elect & Comp Engn PL-31155 Krakow Poland

ISBN: (纸本)3540219463

In this paper an O(n) parallel algorithm is presented for fast unranking t-ary trees with n internal nodes in Zaks' representation. A sequential O(nt) algorithm is derived on the basis of dynamic programming paradigm. In the parallel version of the algorithm processing is performed in a dedicated parallel architecture containing certain systolic and associative features. At first a coefficient table is created by systolic computations. then, n subsequent elements of a tree codeword is computed in O(1) time through associative search operations.

关键词： parallel architectures

来源：评论

学校读者我要写书评

暂无评论

A parallel architecture for stereoscopic processing

A parallel architecture for stereoscopic processing

引用

5th international Euro-Par conference

作者： Romero, M Ciciani, B Univ Rome La Sapienza Dept Comp & Syst Engn I-00198 Rome Italy

ISBN: (纸本)3540664432

An embedded pipeline/parallel architecture to support an extended quad-tree algorithm suitable for real-time estimation of the dense disparity map (DDM) for stereoscopic image processing is proposed. the system performance has been analyzed by several simulations to qualify the results by both an objective measurement (Mean Square Error) and a subjective assessment (output images). the proposed extended quad-tree is based on the block-matching algorithm, then a fine-grain granularity analysis to estimate the DDM leads us to a systolic array design for the basic Processor Element. this basic design has been utilized to the next levels quad-tree's Processor Elements design.

关键词： parallel architectures

来源：评论

学校读者我要写书评

暂无评论

A NEW PRESENTATION OF METACUBES FOR ALGORIthMIC DESIGN AND CASE STUDIES: parallel PREFIX COMPUTATION AND parallel SORTING

引用

JOURNAL OF thE CHINESE INSTITUTE OF ENGINEERS 2009年第7期32卷 939-949页

作者： Li, Yamin Peng, Shietung Chu, Wanming Hosei Univ Dept Comp Sci Tokyo 1848584 Japan Univ Aizu Dept Comp Hardware Aizu Wakamatsu Fukushima 9658580 Japan

A versatile family of interconnection networks alternative to hypercubes, called Metacubes, has been proposed for building extremely large scale multiprocessor systems with a small number of links per node. A Metacube MC(k, m) connects 2(2km + k) nodes with only k + in links per node. Metacube can be used to build parallel computing systems of very large scale with a small number of links per node. In this paper, we propose a new presentation of Metacube for algorithmic design. Based on the new presentation, we give efficient algorithms for parallel prefix computation and parallel sorting on Metacubes, respectively. the algorithm for prefix computation runs in 2(k)m (k + 1) + k communication steps and 2(k + 1)m + 2k computation steps on MC(k, m). the sort algorithm runs in O(2(k)m + k)(2) computation steps and O(2(k)m (2k + 1) + k)(2) communication steps on MC(k, m).

关键词： Hypercube Metacube parallel prefix parallel sorting

来源：评论

学校读者我要写书评

暂无评论

An adaptive algorithm selection framework

An adaptive algorithm selection framework

引用

13th international conference on parallel Architecture and Compilation Techniques

作者： Yu, H Zhang, DM Rauchwerger, L IBM Corp Thomas J Watson Res Ctr Yorktown Hts NY 10598 USA

ISBN: (纸本)0769522297

Irregular and dynamic memory reference patterns can cause performance variations for low level algorithms in general and for parallel algorithms in particular. We present an adaptive algorithm selection framework which can collect and interpret the inputs of a particular instance of a parallel algorithm and select the best performing one from a an existing library. In this paper present the dynamic selection of parallel reduction algorithms. First we introduce a set of high-level parameters that can characterize different parallel reduction algorithms. then we describe an off-line, systematic process to generate predictive models which can be used for run-time algorithm selection. Our experiments show that our framework: (a) selects the most appropriate algorithms in 85% of the cases studied, (b) overall delievers 98% of the optimal performance, (c) adaptively selects the best algorithms for dynamic phases of a running program (resulting in performance improvements otherwise not possible), and (d) adapts to the underlying machine architecture (tested on IBM Regatta and HP V-Class systems).

关键词： parallel processing systems

来源：评论

学校读者我要写书评

暂无评论

parallel Programming on a Soft-Core Based Multi-core System

Parallel Programming on a Soft-Core Based Multi-core System

引用

10th international conference on algorithms and architectures for parallel processing

作者： Lee, Liang-Teh Lee, Shin-Tsung Chen, Ching-Wei Tatung Univ Dept Comp Sci & Engn Taipei 10452 Taiwan

ISBN: (纸本)9783642131356

Soft-core system allows designers to modify the components which are in the architecture they designed conveniently. In some systems, uni-core processor can not provide enough computing power to support a huge amount of computing for specific applications. In order to improve the performance of a multi-core system, in addition to the hardware architecture design, parallel programming is an important issue. the current parallelizing compilers are hard to parallelize the programs effectively. the programmer must think about how to allot the task to each processor in the beginning. In this paper, we present a software framework for designing parallel program. the proposed framework provides a convenient parallel programming environment for programmers to design the multi-core system's software. From the experiments, the proposed framework can parallelize the program effectively by applying the provided functions.

关键词： parallel programming

来源：评论

学校读者我要写书评

暂无评论

A Model-Driven parallel processing System for IoT Data Based on User-Defined Functions 5

A Model-Driven Parallel Processing System for IoT Data Based...

引用

5th IEEE international conference on Cloud Computing and Big Data Analytics, ICCCBDA 2020

作者： Luo, Jianqiao Zhang, Li Li, Xuan Tsinghua University Beijing China

ISBN: (数字)9781728160245

ISBN: (纸本)9781728160245

Internet of things (IoT) devices have produced large data rapidly in recent years. though parallel computing architectures like Map-Reduce have been successful in processing massive data, they are not enough for problems in practice. the variety of IoT sensors and usage requires many different applications, where applications may involve complex logic that unsuitable for ordinary Map-Reduce model, and the management of those applications can be difficult. this paper presents a novel model-driven parallel processing system based on user-defined functions to solve these problems. the system uses a model-driven method to define and manage parallel computation tasks, separates the procedure of data collection and data computation, presents a generalized user-defined function (UDF) abstraction for data computation that allows users to implement applications in a simple way and largely reduces the cost of programming. the system runtime is based on Apache Spark and computation tasks are translated into Apache Spark applications. Experiments show that the system performance is as good as theoretical expectation. © 2020 IEEE.

关键词： Internet of things

来源：评论

学校读者我要写书评

暂无评论

Extraction of Recursion Level parallelism for Embedded Multicore Systems 17

Extraction of Recursion Level Parallelism for Embedded Multi...

引用

17th Annual international conference on Embedded Computer Systems - architectures, Modeling, and Simulation (SAMOS)

作者： Aguilar, Miguel Angel Leupers, Rainer Ascheid, Gerd Eusse, Juan Fernando Rhein Westfal TH Aachen Inst Commun Technol & Embedded Syst Aachen Germany Silex GmbH Herne Germany

ISBN: (纸本)9781538634370

Recursive programs that typically implement divide-and-conquer algorithms are well-suited for multicore systems, as they offer a high degree of parallelization potential. So far, existing parallelizing compilers have mainly focused on extracting other parallel patterns, such as data or pipeline level parallelism. In this paper, we propose a toolflow for the extraction of recursion level parallelism for embedded multicore systems. To achieve this, the toolflow verifies not only the mutual independence of recursive call-sites, but also selects an appropriate task granularity to ensure a good trade-off between load balancing and parallelization overhead. Profitable parallelization opportunities are implemented by using compiler directives from the OpenMP tasking model. Results show the effectiveness of our toolflow, as it is able to speedup sequential recursive programs between 2.5x and 3.8x on a quad-core platform.

关键词： Task analysis Multicore processing parallel processing Analytical models Performance analysis Static analysis Load management task analysis load management parallel processing (COMPUTERS) ANALYSIS MODELS Multi-core processors parallelism Synclitism Recursion Recursive Procedure parallelizing compilers parallelization

来源：评论

学校读者我要写书评

暂无评论

Novel Heuristic Mapping algorithms for Design Space Exploration of Multiprocessor Embedded architectures 24

Novel Heuristic Mapping Algorithms for Design Space Explorat...

引用

24th Euromicro international conference on parallel, Distributed, and Network-Based processing (PDP)

作者： Sinaei, Sima Fatemi, Omid Univ Tehran Nanoelect Ctr Excellence Elect & Comp Engn Dept Fac Engn Campus 2 Tehran Iran

ISBN: (纸本)9781467387767

Electronic System level design has an important role in the multi-processor embedded system on chip design. Two important steps in this process are evaluation of a single design configuration and design space exploration. In the first part of design process, high-level simple analytical models for application mapping and evaluation are used and modified aiming at accelerating the evaluation of a single design configuration. Using the analytical model the design space is pruned and explored at high speed with low accuracy. In the second part of the design process, two Multi Objective Optimization algorithms based on Particle Swarm Optimization and Simulated Annealing have been proposed to perform design space exploration of the pruned design space with higher accuracy taking advantages of low-level architectural simulation engines. the results obtained by proposed algorithms will provide the designer more accurate solutions within an acceptable time. Considering the MJPEG application as the case study, each of these methods produces a set of near-optimal points. Simulation results show that the proposed methods can lead to near-optimal design configurations with acceptable accuracy in reasonable time.

关键词： Design Space Exploration System-Level Design Multi-Objective Optimization Heterogeneous platforms

来源：评论

学校读者我要写书评

暂无评论

Gang scheduling with lightweight user-level communication

Gang scheduling with lightweight user-level communication

引用

30th international conference on parallel processing (ICPP Workshops)

作者： Frachtenberg, E Petrini, F Coll, S Feng, WC Los Alamos Natl Lab CCS3 Modeling Algorithms & Informat Grp Comp & Computat Sci CCS Div Los Alamos NM 87545 USA

ISBN: (纸本)0769512607

In this paper we explore the performance of gang scheduling on a cluster using the Quadrics interconnection network. In such a cluster the scheduler can take advantage of this network's unique capabilities, including a network interface card-based processor and memory and efficient user-level communication libraries. We developed a micro-benchmark to test the scheduler's performance under various aspects of parallel job workloads: memory usage, bandwidth and latency-bound communication, number of processes, timeslice quantum, and multiprogramming levels. Our experiments show that the gang scheduler performs relatively well under most workload conditions, is largely insensitive to the number of concurrent jobs in the system and scales almost linearly with number of nodes. On the other hand, the scheduler is very sensitive to the timeslice quantum, and values under 30 seconds can incur large overheads and fairness problems.

关键词： gang scheduling performance evaluation parallel architectures quadrics interconnect

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：