检索结果-内蒙古大学图书馆

Multipath routing slice experiments in federated testbeds

Lecture Notes in computer science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2011年 6656卷 247-258页

作者： Zseby, Tanja Zinner, Thomas Tutschku, Kurt Shavitt, Yuval Tran-Gia, Phuoc Schwartz, Christian Rafetseder, Albert Henke, Christian Schmoll, Carsten FOKUS - Fraunhofer Institute for Open Communication Systems Berlin Germany Institute of Computer Science University of Wuerzburg Wuerzburg Germany University of Vienna Austria School of Electrical Engineering Tel Aviv University Tel Aviv Israel Department of Next Generation Networks Technical University Berlin Berlin Germany

ISBN: (纸本)9783642208973

The Internet today consist of many heterogeneous infrastructures, owned and maintained by separate and potentially competing administrative authorities. On top of this a wide variety of applications has different requirements with regard to quality, reliability and security from the underlying networks. The number of stakeholders who participate in provisioning of network and services is growing. More demanding applications (like eGovernment, eHealth, critical and emergency infrastructures) are on the rise. Therefore we assume that these two basic characteristics, a) multiple authorities and b) applications with very diverse demands, are likely to stay or even increase in the Internet of the future. In such an environment federation and virtualization of resources are key features that should be supported in a future Internet. The ability to form slices across domains that meet application specific requirements enables many of the desired features in future networks. In this paper, we present a Multipath Routing Slice experiment that we performed over multiple federated testbeds. We combined capabilities from different experimental facilities, since one single testbed did not offer all the required capabilities. This paper summarizes the conducted experiment, our experience with the usability of federated testbeds and our experience with the use of advanced measurement technologies within experimental facilities. We believe that this experiment provides a good example use case for the future Internet itself because we assume that the Internet will consist of multiple different infrastructures that have to be combined in application specific overlays or routing slices, very much like the experimental facilities we used in this experiment. We also assume that the growing demands will push towards a much better measurement instrumentation of the future Internet. The tools used in our experiment can provide a starting point for this. © 2011 The Author(s).

关键词： Testbeds

来源：评论

学校读者我要写书评

暂无评论

Single Gradientless Light Beam Drags Particles as Tractor Beams

引用

Physical Review Letters 2011年第20期107卷 203601-203601页

作者： Andrey Novitsky Cheng-Wei Qiu Haifeng Wang DTU Fotonik Department of Photonics Engineering Technical University of Denmark Ørsteds plads 343 DK-2800 Kgs. Lyngby Denmark Department of Electrical and Computer Engineering National University of Singapore 4 Engineering Drive 3 Singapore 117576 Singapore Data Storage Institute (DSI) Agency for Science Technology and Research DSI Building 5 Engineering Drive 1 Singapore 117608 Singapore

Usually a light beam pushes a particle when the photons act upon it. We investigate the optical forces by nonparaxial gradientless beams and find that the forces can drag suitable particles all the way towards the light source. The major criterion of realizing the backward dragging force is the strong nonparaxiality of the light beam, which contributes to the pulling force owing to momentum conservation. The nonparaxiality of the Bessel beam can be manipulated to possess a dragging force along both the radial longitudinal directions, i.e., a “tractor beam” with stable trajectories is achieved.

关键词： PHOTONS MATHEMATICAL models PARTICLES (Nuclear physics) BESSEL functions LIGHT sources LASER beams

来源：评论

学校读者我要写书评

暂无评论

Expressiveness of time domain features for detecting different types of human movements

Expressiveness of time domain features for detecting differe...

引用

10th International Conference on Modern Problems of Radio Engineering, Telecommunications and computer science, TCSET'2010

作者： Rybina, Kateryna Ternovoy, Maksym Dargie, Waltenegus Department of Information-Telecommunication Networks National Technical University of Ukraine Kyiv Polytechnic Institute Industrialnyy Al. 2 Kyiv03056 Ukraine Department of Computer Networks Faculty of Computer Science Technical University of Dresden D-01062 Dresden Germany

ISBN: (纸本)9789665538752

The usage of wireless activity recognition systems is significant in many applications. The aim of this paper is to show the expressive power of time domain features based on the case study of correlation coefficient feature for detection of the following types of movement: hopping, running, jumping, balancing and skipping. Time domain analyses were applied to acceleration data and a confusion matrix was established as movement classification method.

关键词： Time domain analysis

来源：评论

学校读者我要写书评

暂无评论

Design and analysis of a scalable algorithm to monitor chord-based P2P systems at runtime

引用

Scalable Computing 2010年第3期11卷 239-250页

作者： Binzenhoefer, Andreas Kunzmann, Gerald Henjes, Robert University of Würzburg Institute of Computer Science Germany Technical University of Munich Institute of Communication Networks Germany

Peer-to-peer (p2p) systems are a highly decentralized, fault tolerant, and cost effective alternative to the classic client-server architecture. Yet companies hesitate to use p2p algorithms to build new applications. Due to the decentralized nature of such a p2p system the carrier does not know anything about the current size, performance, and stability of its application. In this paper we present an entirely distributed and scalable algorithm to monitor a running p2p network. The snapshot of the system enables a telecommunication carrier to gather information about the current performance parameters of the running system as well as to react to discovered errors. © 2010 SCPE.

关键词： Cost effectiveness

来源：评论

学校读者我要写书评

暂无评论

The scaffolding of a formal context

The scaffolding of a formal context

引用

7th International Conference on Concept Lattices and Their Applications, CLA 2010

作者： Doerfel, Stephan Knowledge and Data Engineering Group Department of Mathematics and Computer Science University of Kassel Wilhelmshöher Allee 73 34121 Kassel Germany Department of Mathematics Institute of Algebra Technical University of Dresden 01062 Dresden Germany

The scaffolding of a complete lattice L of finite length was introduced by Rudolf Wille in 1976 as a relative subsemilattice of L that can be constructed using subdirect decomposition. The lattice is uniquely defined by its scaffolding and can be reconstructed from it. Using bonds, we demonstrate how the scaffolding can be constructed from a given formal context and thereby extend the notion of the scaffolding to doubly founded lattices. Further, we explain the creation of a suitable graphical representation of the scaffolding from the context.

关键词： Scaffolds

来源：评论

学校读者我要写书评

暂无评论

Expressiveness of time domain features for detectingdifferent types of human movements

Expressiveness of time domain features for detectingdifferen...

引用

International Conference on Modern Problems of Radio Engineering, Telecommunications and computer science

作者： Kateryna Rybina Maksym Ternovoy Waltenegus Dargie Chair of Information-Telecommunication Networks National Technical University Of Ukraine Kyiv Polytechnic Institute Kyiv Ukraine Chair of Computer Networks Faculty of Computer Science Technical University of Dresden Dresden Germany

ISBN: (纸本)9781424463244;9789665538752

关键词： computer vision Time domain analysis Acceleration Accelerometers Biomedical monitoring Training data Time measurement computer science Conferences computer networks

来源：评论

学校读者我要写书评

暂无评论

Shrinking large visual vocabularies using multi-label agglomerative information bottleneck

Shrinking large visual vocabularies using multi-label agglom...

引用

IEEE International Conference on Image Processing

作者： Wojciech Wojcikiewicz Alexander Binder Motoaki Kawanabe Department of Computer Science Technical University Berlin Berlin Germany Intelligent Data Analysis Group Fraunhofer Institute FIRST Berlin Germany

The quality of visual vocabularies is crucial for the performance of bag-of-words image classification methods. Several approaches have been developed for codebook construction, the most popular method is to cluster a set of image features (e.g. SIFT) by k-means. In this paper, we propose a two-step procedure which incorporates label information into the clustering process by efficiently generating a large and informative vocabulary using class-wise k-means and reducing its size by agglomerative information bottleneck (AIB). We introduce an extension of the AIB procedure for multi-label problems and show that this two-step approach improves the classification results while reducing computation time compared to the vanilla k-means. We analyse the reasons for the performance gain on the PASCAL VOC 2007 data set.

关键词： Vocabulary Visualization Kernel Performance gain Training Clustering algorithms Histograms

来源：评论

学校读者我要写书评

暂无评论

Automating Composite SLA Management Tasks by Exploiting Service Dependency Information

Automating Composite SLA Management Tasks by Exploiting Serv...

引用

European Conference on Web Services (ECOWS)

作者： Matthias Winkler Thomas Springer Alexander Schill SAP Research CEC Dresden SAP AG Dresden Germany Faculty of Computer Science Institute of Systems Architecture Computer Networks Group Technical University of Dresden Dresden Germany

According to the Internet of Services vision, composite services are created by composing services to complex business processes. The relationships between services in a composition are defined by Service Level Agreements (SLAs). Managing composite SLAs is a complex task which is currently performed manually. In this paper we present an approach for automating the management of composite SLAs by exploiting the explicit knowledge about dependencies between composed services. We define a formal model for representing a set of dependencies. A set of algorithms exploits this information to automate tasks of composite SLA management. These tasks are the validation of SLAs during negotiation, the evaluation of SLA renegotiation requests and the evaluation of SLA violations with regard to their effects on other services. We have validated our approach based on a logistics scenario. We present results with respect to performance and a set of test cases demonstrating the added value of dependency information based automated SLA management.

关键词： Quality of service Logistics Contracts Monitoring Adaptation model Internet

来源：评论

学校读者我要写书评

暂无评论

An annotation tool for enhancing the user interface generation process for services

An annotation tool for enhancing the user interface generati...

引用

KpbiMuKo 2009 CriMiCo - 2009 19th International Crimean Conference Microwave and Telecommunication Technology

作者： Izquierdo, Paoli Janeiro, Jordan Hübsch, Gerald Springer, Thomas Schill, Alexander Department of Computer Science Institute of System Architecture Chair of Computer Networks Dresden Technical University Dresden Sachsen 01187 Germany

ISBN: (纸本)9789663352497

The user interface generation process is still a complex issue. The manual creation process is time consuming and complex because it requires the combination of the application developer work and the user interface designer work. Therefore, many approaches investigate the automatic user interface generation. However, currently such approaches are not able to take usability aspects into account, due to the lack of information for such a process. Thus, we propose a tool which intends to ease and enhance the automatic user interface generation process for services by introducing service annotations that are attached to services and provide additional information for the process of automatic user interface generation. © 2009: CriMiCo'2009 Organizing Committee.

关键词：

来源：评论

学校读者我要写书评

暂无评论

CASEMANS 2009: The 3rd ACM International Workshop on Context-Awareness for Self-Managing Systems 09

CASEMANS 2009: The 3rd ACM International Workshop on Context...

引用

3rd ACM International Workshop on Context-Awareness for Self-Managing Systems, Casemans 2009

作者： Dargie, Waltenegus Kuwahara, Noriaki Technical University of Dresden Institute for Systems Architecture Department of Computer Networks Dresde Germany Kyoto Institute of Technology Graduate School of Science and Technology Kyoto Japan

ISBN: (纸本)9781605584393

This year, the 3rd ACM International Workshop on Context-Awareness for Self-Managing Systems (Devices, Applications and networks) (CASEMANS 2009) is organized in Nara, Japan. This article summarizes the objectives of the CASE-MANS 2009 workshop and gives an overview of the papers that are selected for presentation and publication. Copyright 2009 ACM.

关键词：

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：