检索结果-内蒙古大学图书馆

IFIP/IEEE International Symposium on Integrated Network management

作者： J.B.D. Cabrera L. Lewis Xinzhou Qin Wenke Lee R.K. Prasanth B. Ravichandran R.K. Mehra Scientific Systems Company Inc. Woburn MA USA Aprisma Management Technologies Nashua NH USA Department of Computer Science North Carolina State University Rayleigh NC USA

ISBN: (纸本)0780367197

We propose a methodology for utilizing network management systems for the early detection of distributed denial of service (DDoS) attacks. Although there are quite a large number of events that are prior to an attack (e.g. suspicious log-ons, start of processes, addition of new files, sudden shifts in traffic, etc.), in this work we depend solely on information from MIB (management information base) traffic variables collected from the systems participating in the attack. Three types of DDoS attacks were effected on a research test bed, and MIB variables were recorded. Using these datasets, we show how there are indeed MIB-based precursors of DDoS attacks that render it possible to detect them before the target is shut down. Most importantly, we describe how the relevant MIB variables at the attacker can be extracted automatically using statistical tests for causality. It is shown that statistical tests applied in the time series of MIB traffic at the target and the attacker are effective in extracting the correct variables for monitoring in the attacker machine. Following the extraction of these key variables at the attacker, it is shown that an anomaly detection scheme, based on a simple model of the normal rate of change of the key MIBs can be used to determine statistical signatures of attacking behavior. These observations suggest the possibility of an entirely automated procedure centered on network management systems for detecting precursors of distributed denial of service attacks, and responding to them.

关键词： computer crime USA Councils Data security Information security Monitoring computer network management Technology management Testing Samarium Intrusion detection

来源：评论

学校读者我要写书评

暂无评论

A method for protecting digital images from being copied illegally

A method for protecting digital images from being copied ill...

引用

Kyoto International Conference on Digital Libraries, KyotoDL 2000

作者： Chang, Chin-Chen Yeh, Jyh-Chiang Hsiao, Ju-Yuan Department of Computer Science and Information Engineering National Chung Cheng University Chiayi621 Taiwan Department of Information Management National Changhua University of Education Changhua500 Taiwan

ISBN: (纸本)0769510221

Due to the recent growth of digital multimedia transmissions on the Internet, the need for the intellectual property rights protection of multimedia information, like images, music and videos, has become more and more important. Many digital watermarking techniques have been proposed to solve this problem by hiding an invisible watermark in an image to prove the ownership of the image. In this paper, however, we propose a new scheme for the copyright protection of images. Our scheme is a DCT-based method and does not actually hide the watermark in the image. In addition, this scheme is extremely applicable for multiple watermarking. According to our substantial experimental results, this scheme is strongly robust against various kinds of image processing attacks. © 2000 IEEE.

关键词： Frequency domain analysis

来源：评论

学校读者我要写书评

暂无评论

Efficient network management for collaborative services and application development

Efficient network management for collaborative services and ...

引用

IEEE International Conference on Multimedia and Expo (ICME)

作者： K.H. Liu V.T. Tsaoussidis Department of Network Operations and Management Telcordia Technologies Inc. USA Department of Computer Science SUNY at Stony Brook USA

Collaborative services and applications are becoming increasingly important and complex, and have requirements for real-time multimedia support, high bandwidth availability and low delays. The collaborative application view of QoS encompasses the transport network and the end systems, as well as computational requirements. Therefore, how to coordinate and integrate collaboration management and network resource sharing efficiently and effectively is becoming more complex: a higher-level functionality is required in parallel with a satisfying performance. The functionality should satisfy the requirements of different levels of collaboration and respect a hierarchy of priorities among users and tasks. The performance, depending on the application or the network, should be sufficient for real-time information exchange, which is quite often a "heavy data exchange". We have developed a management framework to satisfy the complex functionality requirements that arise in the development of collaborative applications and services. The emphasis in designing such a framework is given on several levels of design that affect the performance of collaboration environments, the connection management, the replication management, the data management and the effective and interoperable usage of resources. Based on the proposed framework, we present a Java-based application for mission planning.

关键词： Collaboration Application software Resource management Quality of service Protocols computer network management computer networks Disaster management Environmental management Distributed computing

来源：评论

学校读者我要写书评

暂无评论

A QoS-aware multicast routing protocol

A QoS-aware multicast routing protocol

引用

IEEE Annual Joint Conference: INFOCOM, IEEE computer and Communications Societies

作者： Shigang Chen K. Nahrstedt Y. Shavitt Internet Security Management Group Cisco Systems Inc. Champaign IL USA Department of Computer Science University of Illinois Urbana-Champaign Urbana IL USA Bell Laboratories Lucent Technologies Inc. Holmdel NJ USA

The future Internet is expected to support multicast applications with quality of service (QoS) requirements. To facilitate this, QoS multicast routing protocols are pivotal in enabling new receivers to join a multicast group. However, current routing protocols are either too restrictive in their search for a feasible path between a new receiver and the multicast tree, or burden the network with excessive overhead. We propose QMRP, a new Qos-aware multicast routing protocol. QMRP achieves scalability by significantly reducing the communication overhead in constructing a multicast tree, yet it retains a high chance of success. This is achieved by switching between single-path routing and multiple-path routing according to the current network conditions. The high-level design of QMRP makes it operable on top of any unicast routing algorithm both intra-domain and inter-domain. Its responsiveness is improved by using a termination mechanism which detects the failure as well as the success of routing without the use of timeout. In addition, QMRP always constructs loop-free multicast trees.

关键词： Multicast protocols Routing protocols Quality of service Web and internet services Scalability Communication switching Algorithm design and analysis Unicast Multicast algorithms Delay

来源：评论

学校读者我要写书评

暂无评论

Conceptions of curriculum for simulation education

Conceptions of curriculum for simulation education

引用

Simulation Winter Conference

作者： H. Szczerbicka J. Banks R.V. Rogers T.I. Oren H.S. Sarjoughian B.P. Zeigler Institute for Computer Science Fachbereich Mathematik und Informatik University of Hannover Hanover Germany AutoSimulations A Brooks Automation company Marietta GA USA Department of Engineering Management Virginia Modeling Analysis and Simulation Center Old Dominion University Norfolk VA USA Turkish Science and Technical Research Council Marmara Research Center Information Technologies Research and Development Center Gebze Kocaeli Turkey Arizona Center for Integrative Modeling and Simulation Department of Electrical and Computer Engineering University of Arizona Tucson Tucson AZ USA

来源：评论

学校读者我要写书评

暂无评论

Alexandria digital library: user evaluation studies and system design

引用

Journal of the Association for Information science and Technology 2000年第3期51卷

作者： Linda L. Hill Larry Carver Mary Larsgaard Ron Dolin Terence R. Smith James Frew Mary-Anna Rae Alexandria Digital Library Project University of California Santa Barbara Santa Barbara CA 93106. Map & Imagery Laboratory Davidson Library University of California Santa Barbara Santa Barbara CA 93106. Computer Science Department University of California Santa Barbara Santa Barbara CA 93106. Donald Bren School of Environmental Science and Management University of California Santa Barbara Santa Barbara CA 93106. Graduate School of Education University of California Santa Barbara Santa Barbara CA 93106.

The Alexandria Digital Library (ADL) is one of the six digital library projects funded by NSF, DARPA, and NASA. ADL's collection and services focus on information containing georeferences: maps, images, data sets, text, and other information sources with links to geographic locations. During this study period, three different user interfaces were developed and tested by user groups. User feedback was collected through various formal and informal approaches and the results fed back into the design and implementation cycle. This article describes the evolution of the ADL system and the effect of user evaluation on that evolution. ADL is an ongoing project; user feedback and evaluation plans for the remainder of the project are described.

关键词：

来源：评论

学校读者我要写书评

暂无评论

An optimal embedding of incomplete binary trees onto incomplete hypercubes

An optimal embedding of incomplete binary trees onto incompl...

引用

International Symposium on Parallel Architectures, Algorithms and Networks (ISPAN)

作者： Chien-Hung Huang Ju-Yuan Hsiao R.C.T. Lee Jywe-Fei Fang Department of Computer Science National Tsing Hua University Taiwan Department of Business Education National Changhua University of Education Taiwan Providence University Taichung Taiwan Department of Industrial and Management Engineering Tung Nan Junior College of Technology Taiwan

It has been proved that incomplete binary trees can not be embedded onto incomplete hypercubes with both expansion-1 and dilation-1. In this paper we propose an optimal embedding algorithm to embed this issue with expansion-1, dilation-2. Our algorithm is a linear time algorithm, which is optimal in terms of time complexity. Furthermore, the embedding scheme is as desirable to be simple such that the implementation is quite easy.

关键词： Binary trees Hypercubes Costs Routing Delay Constraint optimization Labeling

来源：评论

学校读者我要写书评

暂无评论

A decision support system for life cycle management

A decision support system for life cycle management

引用

International Symposium on Environmentally Conscious Design and Inverse Manufacturing (EcoDesign)

作者： D. Hunkeler E. Vanakari G. Biswas K. Kawamura R. Dhingra L. Caffey E. Huang Department of Chemistry Swiss Federal Institute of Technology Lausanne Switzerland Department of Computer Science Vanderbilt University Nashville TN USA US-Japan Center for Technology Management Vanderbilt University Nashville TN USA United Technologies Research Center Inc. East Hartford CT USA

An Internet-based environmentally conscious decision support tool (EcoDS) has been developed for product life cycle management. EcoDS, which is currently implemented in customized forms by various Fortune 100 companies, involves an initial vertical streamlining step, where the significant life cycle stages and impacts are selected. Since the streamlining is performed prior to the inventory, the approach expedites data collection. Comparisons between alternative product designs or manufacturing processes are based on two metrics-financial risk (or cost) and "residual" risk-permitting organizations to retain financial data in their analyses while not having to cost uncertain estimates. For purposes of evaluation these two indicators are individually aggregated using a user- or organization-specified value system. A salient feature of EcoDS is that this output can be condensed into a single summary matrix akin to a hybrid pro forma income statement or "environmental balance sheet". The clear delineation between the tradeoffs involved in each alternative facilitates decision making by upper management. EcoDS' output also identifies key econometrics for future monitoring. A case study on painting alternatives is presented to illustrate the methodology.

关键词： Decision support systems Costs Internet Product life cycle management Product design Manufacturing processes Data analysis Risk analysis Decision making Econometrics

来源：评论

学校读者我要写书评

暂无评论

Innovations in a global distance education program

Innovations in a global distance education program

引用

Frontiers in education (FIE) Conference

作者： K. Randall E.G. McGuire Department of Defense Education Activity Management Information Systems Arlington VA USA Computer Science and Information Systems American University Washington D.C. DC USA

The success of distance learning programs is highly dependent on the organizational environment in which they are implemented. This paper discusses how one large organization implemented and evolved a global distance learning program. The primary focus of this paper is the extraction of the perceived benefits and lessons learned during the development and use of this distance learning program. The lessons learned are generalizable and can be transferred to other organizations with appropriate attention to organizational context and environment.

关键词： Technological innovation Distance learning computer aided instruction educational institutions Time sharing computer systems Electronic mail computer science education computer networks educational programs management information systems

来源：评论

学校读者我要写书评

暂无评论

Anywhere, Anytime Code Inspections: Using the Web to Remove Inspection Bottlenecks in Large-Scale Software Development

Anywhere, Anytime Code Inspections: Using the Web to Remove ...

引用

International Conference on Software Engineering (ICSE)

作者： J.M. Perpich D.E. Perry A.A. Porter L.G. Votta M.W. Wade Line Access SW Development Lucent Technologies Inc. Naperville IL USA Bell Laboratories Software Production Research Murray Hill NJ USA Computer Science Department University of Maryland College Park MD USA Bell Laboratories Software Production Research Naperville IL USA Quality Management Group Lucent Technologies Inc. Naperville IL USA

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：