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Computing in Science & Engineering

Issue 4 • Date July-Aug. 2004

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Displaying Results 1 - 23 of 23
  • [Front cover]

    Publication Year: 2004 , Page(s): c1
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    Freely Available from IEEE
  • Table of contents

    Publication Year: 2004 , Page(s): c2
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  • From the Editors: P ≠ NP

    Publication Year: 2004 , Page(s): 2
    Request Permissions | Click to expandAbstract | PDF file iconPDF (71 KB) |  | HTML iconHTML  

    When and if the statement in the title is proved, the person who proves it will win a million dollars and become an instant megastar. He or she will certainly appear on the front page of The New York Times and should expect invitations from late-night talk shows and to be the subject of a PBS Nova special. For a long time—a very long time—this fundamental open question about the relation... View full abstract»

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  • Letters to the Editors

    Publication Year: 2004 , Page(s): 3 - 5
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    Freely Available from IEEE
  • Simulating Sprawl

    Publication Year: 2004 , Page(s): 6 - 9
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1552 KB) |  | HTML iconHTML  

    Sleuth, a computer model developed by the United States Geological Survey (USGS), is used to simulate the fusing of the American eastern seaboard one giant megalopolis - the Sprawl. It divides maps into a grid of cellular automata - mathematical constructs such as cells or pixels - and charts the spread of urban land into rural. In an early application, Sleuth simulated long-term urban growth alon... View full abstract»

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  • Guest Editors' Introduction: Web Engineering--The Evolution of New Technologies

    Publication Year: 2004 , Page(s): 10 - 11
    Request Permissions | Click to expandAbstract | PDF file iconPDF (608 KB) |  | HTML iconHTML  

    The Web is now the most popular environment for circulating information as network-accessible data; the exponential growth in this information’s dissemination is contributing to the evolution of research topics in the field of Web engineering. This issue of CiSE magazine focuses on understanding and emphasizing engineering topics as they’re applied in today’s Web environment and inf... View full abstract»

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  • Managing XML data: an abridged overview

    Publication Year: 2004 , Page(s): 12 - 19
    Cited by:  Papers (1)  |  Patents (4)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (240 KB) |  | HTML iconHTML  

    XML's flexibility makes it a natural format for both exchanging and integrating data from diverse data sources. In this survey, the authors give an overview of issues in managing XML data, discuss existing solutions, and outline the current technology's open problems and limitations. View full abstract»

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  • Information retrieval techniques for peer-to-peer networks

    Publication Year: 2004 , Page(s): 20 - 26
    Cited by:  Papers (11)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (272 KB) |  | HTML iconHTML  

    Peer-to-peer (P2P) systems are application-layer networks that let networked hosts share resources in a distributed environment. An important attribute of P2P networks is the ability to efficiently search the contents of other peers. In this article, the authors survey existing search techniques for information retrieval (IR) in P2P networks, including recent techniques that they propose. They als... View full abstract»

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  • Trust negotiations: concepts, systems, and languages

    Publication Year: 2004 , Page(s): 27 - 34
    Cited by:  Papers (23)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (256 KB) |  | HTML iconHTML  

    Trust negotiation is a promising approach for establishing trust in open systems like the Internet, where sensitive interactions may often occur among entities with no prior knowledge of each other. In this article, the authors present a model for trust negotiation systems, and delineate the desiderata that ideal trust negotiation systems should satisfy. In defining trust negotiation requirements,... View full abstract»

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  • Intelligent agents on the Web: a review

    Publication Year: 2004 , Page(s): 35 - 42
    Cited by:  Papers (14)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (312 KB) |  | HTML iconHTML  

    Intelligent agents are goal-driven and autonomous, and can communicate and interact with each other. Moreover, they can evaluate information obtained online from heterogeneous sources and present information tailored to an individual's needs. This article covers different facets of the intelligent agent paradigm and applications, while also exploring new opportunities and trends for intelligent ag... View full abstract»

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  • Web searching and information retrieval

    Publication Year: 2004 , Page(s): 43 - 48
    Cited by:  Papers (7)  |  Patents (4)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (240 KB) |  | HTML iconHTML  

    The first Web information services were based on traditional information retrieval (IR) algorithms and techniques. However, IR algorithms were developed for smaller and more coherent collections than the Web is. Thus Web searching requires new techniques - exploiting linkage among Web pages or extensions of the old ones, for example. This article offers an overview of today's search engine archite... View full abstract»

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  • Web mining: research and practice

    Publication Year: 2004 , Page(s): 49 - 53
    Cited by:  Papers (10)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (216 KB) |  | HTML iconHTML  

    Web mining techniques seek to extract knowledge from Web data. This article provides an overview of past and current work in the three main areas of Web mining research - content, structure, and usage - as well as emerging work in semantic Web mining. View full abstract»

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  • Caching and prefetching for Web content distribution

    Publication Year: 2004 , Page(s): 54 - 59
    Cited by:  Papers (6)  |  Patents (3)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (344 KB) |  | HTML iconHTML  

    Proxy caching effectively reduces the network resources that Web services consume, while minimizing user access latencies. Deploying Web caching proxies over the Internet is not easy, however, and presents several cache management challenges. We offer an overview of key management problems for Web proxy caching and prefetching and present state-of-the-art solutions to these problems. Our focus is ... View full abstract»

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  • Monte Carlo simulation of complex radiotherapy treatments

    Publication Year: 2004 , Page(s): 60 - 68
    Cited by:  Papers (6)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (448 KB) |  | HTML iconHTML  

    Monte Carlo simulation is an accurate way of assessing radiotherapy dose distribution in nonhomogeneous volumes, but it requires long processing times. A new distribution model simulates radiotherapy treatments and runs on a PC network, which reduces the processing time and makes for a powerful treatment-verification tool. View full abstract»

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  • Real-time simulation: water droplets on glass windows

    Publication Year: 2004 , Page(s): 69 - 73
    Cited by:  Papers (1)  |  Patents (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (824 KB) |  | HTML iconHTML  

    Real-time simulation of water droplets on glass windows is a challenging computer-graphics task. Most existing work uses ray-tracing algorithms, a time-consuming computation and rendering process. In this installment, we present a new real-time approach. View full abstract»

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  • Elastoplastic torsion: twist and stress

    Publication Year: 2004 , Page(s): 74 - 76
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (432 KB) |  | HTML iconHTML  

    Consider a long rod made of metal, plastic, rubber, or some other homogeneous material. Hold the rod at the ends and twist one end clockwise and the other end counterclockwise. This torsion (twisting) causes stresses in the rod. If the force we apply is small enough, the rod behaves as an elastic body: when we release it, it will return to its original state. But if we apply a lot of twisting forc... View full abstract»

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  • Grids of grids of simple services

    Publication Year: 2004 , Page(s): 84 - 87
    Cited by:  Papers (3)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (224 KB) |  | HTML iconHTML  

    The paper describes how to build systems from service-oriented grids that let you build new grids by composing and adapting existing collections (libraries) of grids. The paper also suggests some best practices for deciding how to architect services and package systems. Often we consider grids as providing seamless access to a set of resources. The author agrees but also proposes that the resultin... View full abstract»

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  • Plone and content management

    Publication Year: 2004 , Page(s): 88 - 95
    Cited by:  Papers (5)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (272 KB) |  | HTML iconHTML  

    This paper looks at Plone, one of the best content management systems. Plone is distributed under a free open-source license: the cost of getting started is only limited to the time you have available to set up the software on a server. Plone is written in Python and uses the Zope application server infrastructure; it runs on most modern operating systems. Plone can be customized for the maintenan... View full abstract»

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  • Book Reviews

    Publication Year: 2004 , Page(s): 97 - 99
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    Freely Available from IEEE
  • Advertising/Product Index

    Publication Year: 2004 , Page(s): 100
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  • PCell: a 2D program for visualizing convective plasma cells

    Publication Year: 2004 , Page(s): 101 - 104
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1672 KB) |  | HTML iconHTML  

    The magnetic field intensity of most celestial bodies and regions of the universe are known; they range from 10-9 G in the intergalactic plasma to 1012 G at the surface of neutron stars. The approach most researchers use to understand this dynamo mechanism is to consider a cosmic plasma with a stationary motion, which leads to an induction problem where the goal is to find st... View full abstract»

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  • Computer Society Infomation

    Publication Year: 2004 , Page(s): c3
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  • [Back cover]

    Publication Year: 2004 , Page(s): c4
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    Freely Available from IEEE

Aims & Scope

CS&E magazine emphasizes articles that help define the field as the interface among the applications (in science and engineering), algorithms (numerical and symbolic), system software, and computer architecture.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
George K. Thiruvathukal
Loyola University