检索结果-内蒙古大学图书馆

Symposium on Applied Computing

作者： P. Schneider M.L.A. Hines Computer Science Telecommunications Program University of Missouri Kansas City USA

The current state of software engineering practices in medical software development is discussed. The authors focus on patient safety (freedom from harm by a medical device) and patient vulnerability (possible indirect harm due to erroneous output). A definition of medical software which can be viewed as a three-dimensional model for medical software classification is proposed. To reduce patient vulnerability and enhance patient safety, specific points of control are derived from the model, and the implications of classification and control for medical software are discussed.< >

关键词： Medical diagnostic imaging Software safety Medical control systems Safety devices Military computing Hardware programming Costs Medical services computer aided manufacturing

来源：评论

学校读者我要写书评

暂无评论

Performance analysis of the general renewal multi-server finite waiting room model

Performance analysis of the general renewal multi-server fin...

引用

International Symposium on Modeling, Analysis and Simulation of computer and Telecommunication Systems (MASCOTS)

作者： Wen-Jung Hsin A. van de Liefvoort Computer Science Telecommunications Program University of Missouri Kansas City USA

In this paper, we analyze the performance of GI/GI/s/s+r systems. In particular we examine steady-state call blocking and time blocking. We vary several parameters such as the number of servers, the number of waiting spaces, the squared coefficients of variation of the arrival and the service processes, and the third moment of the arrival process. We show that these parameters significantly affect system performance. Thus, for most systems with bursty and skewed traffic patterns, simpler models are insufficient. However, in certain circumstances, when the arrivals are either highly bursty or highly skewed, the Markovian assumption gives acceptable approximations to the GI/GI/s/s+r model. Finally, we observe a behavior that is similar to Erlang's insensitivity property in the M/G/s/s model.< >

关键词： Performance analysis Steady-state System performance Switches Telecommunication traffic computer science Cities and towns Traffic control Digital communication Packet switching

来源：评论

学校读者我要写书评

暂无评论

Entropy as a measure of database information 6

Entropy as a measure of database information

引用

6th Annual computer Security Applications Conference, ACSAC 1990

作者： Unger, E.A. Harn, L. Kumar, V. Comput. and Inf. Sci. Kansas State Univ. ManhattanKS United States Computer Science Telecommunications Program University of Missouri at Kansas City United States

ISBN: (纸本)0818621052

An estimate of the information a database contains and the quantification of the vulnerability of that database to compromise by inferential methods is discussed. Such a measure could be used to evaluate the deterrent value of extant protection methods and provide a measure of the potential for inferential compromise through the use of one of the known attack tools. The authors explore the use of the concept of entropy as defined for information by C.E. Shannon (1948;1951), for the purpose of quantifying information content in a database and develop a measure of vulnerability based on entropy. Use of the measure, when exact disclosure through the use of a tracker is anticipated, is characterized for both static and dynamic databases at design and operational time. © 1990 IEEE.

关键词： Entropy

来源：评论

学校读者我要写书评

暂无评论

Increasing DHT Data Security by Scattering Data (Invited Paper)

Increasing DHT Data Security by Scattering Data (Invited Pap...

引用

International Conference on computer Communications and Networks (ICCCN)

作者： Bryan Mills Taieb Znati Department of Computer Science Telecommunications Program University of Pittsburgh Pittsburgh PA USA Telecommunications Program University of Pittsburgh Pittsburgh PA USA

ISBN: (纸本)9781424423897

This paper describes methods for increasing the security of data being stored in a distributed hash table (DHT) which leverages the inherent properties of the DHT to provide a secure storage substrate. The methods presented are based upon a framework referred to as "scatter, conceal, and recover" (SCAR). The standard method of securing data in a DHT is to encrypt the data using symmetrical encryption before storing it in the network. SCAR provides this level of security, but also prevents any known cryptoanalisys from being performed. It does this by dividing data into multiple blocks and scattering these blocks within the DHT. The security of SCAR is provided by the property that an attacker is unable to obtain and reassemble the data blocks correctly. However, if the attacker has access to the network communication, the likelihood of a successful attack is significantly increased. This paper defines how such attacks can be executed and provides methods for ensuring data security in spite of such attacks.

关键词： Data security Scattering Secure storage Cryptography Peer to peer computing Memory Telecommunication traffic Milling machines computer science Fires

来源：评论

学校读者我要写书评

暂无评论

Selective encryption for consumer applications

Selective encryption for consumer applications

引用

Consumer Communications and Networking Conference, CCNC IEEE

作者： T. Lookabaugh D.C. Sicker Department of Computer Science and Interdisciplinary Telecommunications Program University of Colorado Boulder USA

Selective encryption is a technique to save computational complexity or enable new system functionality by encrypting only a portion of a compressed bitstream while achieving adequate security. Although suggested in a number of specific cases, selective encryption could be much more widely used in consumer electronic applications, ranging from mobile multimedia terminals to digital cameras, were it subjected to a more thorough security analysis. We describe selective encryption and develop a simple scalar quantizer example to demonstrate the power of the concept, list a number of potential consumer electronics applications, then describe an appropriate method for developing and analyzing selective encryption for particular compression algorithms. We summarize results from the application of this method to the MPEG-2 video compression algorithm.

关键词： Cryptography Consumer electronics Computational complexity Multimedia systems Digital cameras Power system security Algorithm design and analysis Compression algorithms Transform coding Video compression

来源：评论

学校读者我要写书评

暂无评论

Multi-hour, multi-traffic class network design for VP-based wide-area dynamically reconfigurable ATM networks

Multi-hour, multi-traffic class network design for VP-based ...

引用

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

作者： D. Medhi Computer Science Telecommunications Program University of Missouri Kansas City MO USA

The virtual path (VP) concept has been gaining attention in terms of effective deployment of ATM (asynchronous transfer mode) networks in recent years. In this paper, we discuss a multi-hour, multi-traffic class network (capacity) design model for providing specified quality-of-service in dynamically reconfigurable ATM networks. Our approach is based on statistical multiplexing of traffic within a traffic class by using a virtual path for the class and deterministic multiplexing of different virtual paths, and on providing dynamic bandwidth and reconfigurability through the virtual path concept depending on traffic load during the course of the day. We show that, for test problems based on realistic network data, our approach does between 6% to 20% better than a local shortest path heuristic in terms of network cost. We also show that considering network dynamism through variation of traffic during the course of a day by doing dynamic bandwidth and virtual path reconfiguration can save between 10% to 14% in network design costs compared to a static network based on maximum busy hour traffic.

关键词： Asynchronous transfer mode Communication system traffic control Costs Bandwidth Resource management Quality of service Cities and towns Admission control computer science Electronic mail

来源：评论

学校读者我要写书评

暂无评论

Supporting connection-oriented service in MLAN protocol

Supporting connection-oriented service in MLAN protocol

引用

IEEE Conference and Exhibition on Global telecommunications (GLOBECOM)

作者： U. Varshney J.P. Agrawal Computer Science Telecommunications Program University of Missouri Kansas City MO USA

With the emerging ATM broadband networks, there will be a need for connectivity between LANs and broadband networks. The possibility of seamless internetworking between these networks has generated a significant research interest in providing connection-oriented service over LANs. Also, the multimedia nature of traffic is likely to necessitate a connection-oriented service for communication among the LAN terminals as well as between a LAN terminal and non-LAN terminals on ATM networks. We present a technique to provide connection-oriented service on LANs employing a bandwidth reservation scheme. Then we show how this technique is incorporated into a multimedia LAN (MLAN) protocol to provide connection-oriented service. The performance of the protocol under connection-oriented service is evaluated and the results are presented.

关键词： Protocols Bandwidth Local area networks Broadband communication Internetworking Termination of employment Cities and towns Telecommunication traffic Intelligent networks computer science

来源：评论

学校读者我要写书评

暂无评论

A NOTE ON MINIMAL VISIBILITY GRAPHS

引用

INFORMATION PROCESSING LETTERS 1993年第2期46卷 101-101页

作者： SHEN, XJ HU, Q Computer Science Telecommunications Program University of Missouri &mdash Kansas City Kansas City MO 64110 USA

In a comment, fatal mistakes in the proof in Campbell and Higgins' (1991) main theorem concerning minimal visibility graphs are discussed. These mistakes stem from the incorrectness of Lemma 4 and Lemma 5, which ... 详细信息

关键词： COMPUTATIONAL GEOMETRY

来源：评论

学校读者我要写书评

暂无评论

A teletraffic simulator for circuit switched and signaling intelligent network with SS7 91

A teletraffic simulator for circuit switched and signaling i...

引用

Proceedings of the 23rd conference on Winter simulation

作者： Sophia Scoggins Mark Scoggins Jerrold Stach Computer Science Program University of Texas at Dallas Richardson TX Computer Science Telecommunications Program University of Missouri-Kansas City Kansas City MO

来源：评论

学校读者我要写书评

暂无评论

Parallel algorithms for verification and sensitivity analysis of minimum spanning trees

Parallel algorithms for verification and sensitivity analysi...

引用

International Conference on Parallel and Distributed Systems (ICPADS)

作者： Weifa Liang Xiaojun Shen Qing Hu Department of Computer Science Australian National University Canberra Australia Computer Science Telecommunications Program University of Missouri KS USA

ISBN: (纸本)0818665556

To verify whether a spanning tree T(V,E) of graph G(V,E') is a minimum spanning tree, two parallel algorithms are presented. The first algorithm requires O(log n) time and O(max{m/log n, n/sup 3/2//log n}) processors, where |E'|=m and |V|=n. The second algorithm requires O(log n) time and O(m) processors or O(log nloglog n) time and O(max{m/log n, n}) processors. The first algorithm is optimal when G is dense, compared with its O(m) time sequential version. The second algorithm has better performance when G is sparse. By using above results, we also present an efficient algorithm for sensitivity analysis of minimum spanning trees which requires O(log n) time and O(max{m, n/sup 2//log n}) processors. All proposed algorithms in this paper are based on the parallel computational model called CREW PRAM.

关键词： Parallel algorithms Sensitivity analysis Tree graphs Costs computer science Cities and towns Concurrent computing Computational modeling Phase change random access memory Computational complexity

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：