检索结果-内蒙古大学图书馆

International Symposium on High Performance Distributed Computing

作者： S. Venugopal R. Buyya Grid Computing and Distributed Systems (GRIDS) Laboratory Department of Computer Science and Software Engineering University of Melbourne Australia

We present an algorithm for scheduling distributed data intensive bag-of-task applications on data grids that have costs associated with requesting, transferring and processing datasets. We evaluate the algorithm on a... 详细信息

ISBN: (纸本)9780780390379

关键词： Processor scheduling Costs Grid computing Application software Physics computer networks Laboratories computer science software engineering Testing

来源：评论

学校读者我要写书评

暂无评论

Critical-path and priority based algorithms for scheduling workflows with parameter sweep tasks on global grids

Critical-path and priority based algorithms for scheduling w...

引用

International Symposium on computer Architecture and High Performance Computing (SBAC-PAD)

作者： Tianchi Ma R. Buyya Grid Computing and Distributed Systems (GRIDS) Laboratory Department of Computer Science and Software Engineering University of Melbourne Australia

Parameter-sweep has been widely adopted in large numbers of scientific applications. Parameter-sweep features need to be incorporated into grid workflows so as to increase the scale and scope of such applications. New scheduling mechanisms and algorithms are required to provide optimized policy for resource allocation and task arrangement in such a case. This paper addresses scheduling sequential parameter-sweep tasks in a fine-grained manner. The optimization is produced by pipelining the subtasks and dispatching each of them onto well-selected resources. Two types of scheduling algorithms are discussed and customized to adapt the characteristics of parameter-sweep, as well as their effectiveness has been compared under multifarious scenarios.

关键词： Scheduling algorithm Application software Sensor arrays Grid computing Filtering Data visualization Processor scheduling Resource management Laboratories computer science

来源：评论

学校读者我要写书评

暂无评论

Cost-based scheduling of scientific workflow applications on utility grids

Cost-based scheduling of scientific workflow applications on...

引用

IEEE International Conference on e-Science and Grid Computing

作者： Jia Yu R. Buyya Chen Khong Tham Grid Computing and Distributed Systems Laboratory Department of Computer Science and Software Engineering University of Melbourne VIC Australia Department of Electrical and Computer Engineering National University of Singapore Singapore

Over the last few years, grid technologies have progressed towards a service-oriented paradigm that enables a new way of service provisioning based on utility computing models. Users consume these services based on their QoS (quality of service) requirements. In such "pay-per-use" grids, workflow execution cost must be considered during scheduling based on users' QoS constraints. In this paper, we propose a cost-based workflow scheduling algorithm that minimizes execution cost while meeting the deadline for delivering results. It can also adapt to the delays of service executions by rescheduling unexecuted tasks. We also attempt to optimally solve the task scheduling problem in branches with several sequential tasks by modeling the branch as a Markov decision process and using the value iteration method

关键词： Optimal scheduling Processor scheduling Scheduling algorithm Workflow management software Grid computing quality of service Costs computer networks Time factors Delay

来源：评论

学校读者我要写书评

暂无评论

A time optimization algorithm for scheduling bag-of-task applications in auction-based proportional share systems

A time optimization algorithm for scheduling bag-of-task app...

引用

International Symposium on computer Architecture and High Performance Computing (SBAC-PAD)

作者： A. Sulistio R. Buyya Grid Computing and Distributed Systems (GRIDS) Laboratory Department of Computer Science and Software Engineering University of Melbourne Carlton VIC Australia

Grid and peer-to-peer (P2P) network technologies enable aggregation of distributed resources for solving large-scale and computationally-intensive applications. These technologies are well-suited for bag-of-tasks (BoT) applications, because each application consists of many parallel and independent tasks. With multiple users competing for the same resources, the key challenge is to finish a user application within a specified deadline. In this paper, we propose a time optimization algorithm that schedules a user application on auction-based resource allocation systems. These allocation systems, which are based on proportional share, allow users to bid higher in order to gain more resource shares. Therefore, this algorithm adjusts a user bid periodically on these systems in order to finish the application on time.

关键词： Scheduling algorithm Application software Resource management Peer to peer computing Processor scheduling Grid computing computer applications Large-scale systems computer networks Distributed computing

来源：评论

学校读者我要写书评

暂无评论

A retraining methodology for enhancing agent intelligence

A retraining methodology for enhancing agent intelligence

引用

International Conference on Integration of Knowledge Intensive Multi-Agent systems (KIMAS)

作者： P.A. Mitkas A.L. Symeonidis I.N. Athanasiadis Intelligent Systems and Software Engineering Laboratory Informatics and Telematics Institute CERTH Thessaloniki Greece Electrical and Computer Engineering Department Aristotle University of Thessaloniki Thessaloniki Greece

Data mining has proven a successful gateway for discovering useful knowledge and for enhancing business intelligence in a range of application fields. Incorporating this knowledge into already deployed applications, though, is highly impractical, since it requires reconfigurable software architectures, as well as human expert consulting. In an attempt to overcome this deficiency, we have developed agent academy, an integrated development framework that supports both design and control of multiagent systems (MAS), as well as agent training. We define agent training as the automated incorporation of logic structures generated through data mining into the agents of the system. The increased flexibility and cooperation primitives of MAS, augmented with the training and retraining capabilities of agent academy, provide a powerful means for the dynamic exploitation of data mining extracted knowledge. In this paper, we present the methodology and tools for agent retraining. Through experimental results with the agent academy platform, we demonstrate how the extracted knowledge can be formulated and how retraining can lead to the improvement - in the long run - of agent intelligence.

关键词： Intelligent agent Delta modulation Data mining Humans Companies Application software software architecture Multiagent systems Reconfigurable logic Collaborative software

来源：评论

学校读者我要写书评

暂无评论

The use of optimal filters to track parameters of performance models

The use of optimal filters to track parameters of performanc...

引用

International Conference on the Quantitative Evaluation of systems (QEST)

作者： M. Woodside Tao Zheng M. Litoiu Department of Systems and Computer Engineering Carleton University Ottawa Canada Centre for Advanced Studies IBM Toronto Software Laboratory Canada

Autonomic computer systems react to changes in the system, including failures, load changes, and changed user behaviour. Autonomic control may be based on a performance model of the system and the software, which implies that the model should track changes in the system. A substantial theory of optimal tracking filters has a successful history of application to track parameters while integrating data from a variety of sources, an issue which is also relevant in performance modeling. This work applies extended Kalman filtering to track the parameters of a simple queueing network model, in response to a step change in the parameters. The response of the filter is affected by the way performance measurements are taken, and by the observability of the parameters.

关键词： Application software quality of service Predictive models Monitoring systems engineering and theory software performance software systems Kalman filters Filtering Control systems

来源：评论

学校读者我要写书评

暂无评论

Enforcing semantics-aware security in multimedia surveillance

引用

作者： Kodali, Naren Farkas, Csilla Wijesekera, Duminda Center for Secure Information Systems United States Dept of Info. Systems and Software Eng. George Mason University Fairfax VA 22030-4444 United States Information Security Laboratory United States Dept. of Computer Science and Engineering University of South Carolina Columbia SC 29208 United States

ISBN: (纸本)3540242082

Continuous audio-visual surveillance is utilized to ensure the physical safety of critical infrastructures such as airports, nuclear power plants and national laboratories. In order to do so, traditional surveillance systems place cameras, microphones and other sensory input devices in appropriate locations [Sch99]. These facilities are arranged in a hierarchy of physical zones reflecting the secrecy of the guarded information. Guards in these facilities carry clearances that permit them only in appropriate zones of the hierarchy, and monitor the facilities by using devices such as hand-held displays that send streaming media of the guarded zones possibly with some instructions. The main security constraint applicable to this model is that any guard can see streams emanating from locations with secrecy levels equal to or lower than theirs, but not higher. We show how to model these surveillance requirements using the synchronized multimedia integration language (SMIL) [Aya01] with appropriate security enhancements. Our solution consists of imposing a multi-level security model on SMIL documents to specify surveillance requirements. Our access control model ensures that a multimedia stream can only be displayed on a device if the security clearance of the display device dominates the security clearance of the monitored zone. Additionally, we pre-process a set of cover stories that can be released during emergency situations that allow using the services of guards with lower clearances without disclosing data with higher sensitive levels. For this, we create a view for each level, and show that these views are semantically coherent and comply with specified security polices. © Springer-Verlag Berlin Heidelberg 2004.

关键词： Multimedia services

来源：评论

学校读者我要写书评

暂无评论

Characterization of various etching techniques for gate level failure analysis and substrate decoration for advanced Cu/low k technologies

Characterization of various etching techniques for gate leve...

引用

International Symposium on Physical & Failure Analysis of Integrated Circuits

作者： Huixian Wu J. Cargo M. White Product Analysis Laboratory Agere Systems Quality Organization Allentown PA USA Department of Electrical & Computer Engineering Lehigh University Bethlehem PA USA

In this paper, VLSI technology scaling trends and challenges will be addressed. Failure analysis (FA) challenges, and failure modes for advanced technologies will also be presented. Both Cu/low k integration and gate dielectric integration issues will be discussed, followed by characterization of various poly-silicon etches used for gate oxide decoration. Finally, several different silicon substrate decoration techniques will be presented.

关键词： Etching Failure analysis Copper Integrated circuit interconnections Dielectric materials Dielectric substrates Silicon Integrated circuit technology Electromigration Delay effects

来源：评论

学校读者我要写书评

暂无评论

Investigating manifold learning algorithms based on magnification factors and principal spread directions

引用

Jisuanji Xuebao/Chinese Journal of computers 2005年第12期28卷 2000-2009页

作者： He, Li Zhang, Jun-Ping Zhou, Zhi-Hua Shanghai Key Laboratory of Intelligent Information Processing Department of Computer Science and Engineering Fudan University Shanghai 200433 China Key Laboratory of Complex Systems and Intelligence Science Chinese Academy of Sciences Shanghai 200433 China Department of Computer Science and Engineering School of Mathematical Sciences Fudan University Shanghai 200433 China National Laboratory for Novel Software Technology Nanjing University Nanjing 210093 China

As a new unsupervised learning technique, manifold learning has captured the attention of many researchers in the field of machine learning and cognitive sciences. The major algorithms include Isometric mapping (ISOMAP) and Locally Linear Embedding (LLE). The approaches can be used for discovering the intrinsic dimensions of nonlinear high-dimensional data effectively and aim researchers to analyze the data better. How to quantitatively analyze the relationship between the intrinsic dimensions and the observation space, however, has fewer reports. And thus further works in manifold learning may have suffered some difficulties. The paper focuses on two kinds of manifold learning algorithms (ISOMAP, LLE), and discusses magnification factors and principal spread directions from the observation space to the intrinsic low-dimensional space. Also the corresponding algorithm is proposed. Experiments show the effectiveness and advantages of the research.

关键词： Learning algorithms

来源：评论

学校读者我要写书评

暂无评论

Research on the analysis and measurement for testing results of Web applications

Research on the analysis and measurement for testing results...

引用

International Conference on Cyberworlds

作者： Lei Xu Baowen Xu Yanxiang He Hanwu Chen Qiaoming Zhu Department of Computer Science & Engineering South-East University Nanjing China Jiangsu Institute of Software Quality Nanjing China State Key Laboratory of Software Engineering Wuhan University of China Wuhan China School of Computers National University of Defense Technology Changsha China School of Computer Science & Technology Soochow University Soochow China

Reasonable analysis and corrective measurement for the testing results of Web applications can effectively judge the effect and efficiency of the testing. Therefore, based on the previous work, we propose a new method for testing results analysis and comparison, which uses the semantic label and XML description technique to realize the information separation between data and display in the Web pages, so as to directly compare the testing results and the expected results. Furthermore, combined with the realities, we determine the metric indexes of Web application testing, so as to provide the criterions and guidelines for the evaluations of the Web applications and their testing processes. And we introduce the feedback control mechanism into the development and evolvement of Web applications, so as to further improve the system quality

关键词： Application software computer science Laboratories software engineering software testing Information analysis XML Web pages Helium software quality

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：