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Information Technology

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  • Published Date
Displaying 1701 - 1725 of 2282

Self-Adaptive Leasing for Jini

March 1, 2003
Author(s)
K Bowers, Kevin L. Mills, Scott W. Rose
Distributed computing environments require strategies by which components can detect and recover from failures in remote, collaborating components. Many protocols for distributed systems employ a strategy based on leases, which grant a leaseholder with

Spotlight - Biometric Authentication -- Are You Who You Claim To Be?

March 1, 2003
Author(s)
Michael D. Hogan
The recent establishment of the International Organization for Standardization/International Electrotechnical Commission Joint Technical Committee 1/Subcomittee 37 (ISO/IEC JTC 1/SC 37) on Biometrics is a major development in international standardization

Understanding the Correlation Structure of Network Traffic

December 24, 2002
Author(s)
Kevin L. Mills, J Yuan
This paper aims to improve current understanding of the correlation structure of traffic carried over large networks, such as the Internet. To achieve this aim we use simulation, adopting a methodology of homogenization to achieve a sufficiently large

Master-Slave Cluster Based Multihop Ad-hoc Networking

December 1, 2002
Author(s)
Hamid Gharavi, K Ban
This paper presents a master-slave cluster based mobile ad-hoc network architecture for multihop communications using the IEEE 802.11 system. The proposed architecture is a mixture of two different types of networks: managed (master-and-slave) and ad-hoc

2002 ITL Technical Accomplishments

November 1, 2002
Author(s)
Elizabeth B. Lennon
This report describes the activities and accomplishments of the Information Technology Laboratoy at the National Institute of Technology in 2002.

Advanced Question Answering for Intelligence AQUAINT Website

October 1, 2002
Author(s)
Ellen M. Voorhees
This paper demonstrates that, for large-scale tests, the match and non-match similarity scores have no specific underlying distribution function. The forms of these distribution functions require a nonparametric approach for the analysis of the fingerprint

An Analytical Approach to Shared Backup Path Provisioning in GMPLS Networks

October 1, 2002
Author(s)
Sanghun Lee, David W. Griffith, N-O Song
As GMPLS and its supporting set of protocols develop into a viable control plane for optical networks, an important function that they will need to support will be the restoration and protection function that has been a major feature of legacy optical

A New Classification of Information: A Step on the Road to Interpretability

September 1, 2002
Author(s)
Larry H. Reeker, Albert W. Jones
Complex systems, such as manufacturing supply chains, are often modeled as a collection of interacting components with information flows between them. These components are frequently responsible for making a wide range of decisions that are implemented

Healthcare Information Standards & Testing: A Concept Paper

September 1, 2002
Author(s)
Lisa J. Carnahan, Lynne S. Rosenthal
This paper was inspired by preliminary discussions between NIST and members of the healthcare community who are impacted by the use of emerging information technology. Topics of discussion included the current state of standards work in the healthcare

Kinetic Minimum-Power Routing and Clustering in Mobile Ad-Hoc Networks

September 1, 2002
Author(s)
Camillo Gentile, R E. Van Dyck, J Haerri
We have previously developed a distributed routing algorithm which minimizes the number of overhead messages necessary to maintain the minimum-power multi-hop routes in a mobile ad-hoc network, assuming a piece-wise linear model for the motion of the nodes

Security Guide for Interconnecting Information Technology Systems

September 1, 2002
Author(s)
Timothy Grance, Joan Hash, Steven Peck, Jonathan Smith, Karen Korow-Diks
The Security Guide for Interconnecting Information Technology Systems provides guidance for planning, establishing, maintaining, & terminating interconnections between information technology (IT) systems that are owned & operated by different organizations

Situated Computing: The Next Frontier for HCI Research

August 20, 2002
Author(s)
Kevin L. Mills, Jean C. Scholtz
Today, much of our information-intensive work is carried out at desktop computer workstations; however, increasingly people work and live on the move. Very soon, scads of small information processing appliances will be carried along from place to place as

A New Analytical Model of Shared Backup Path Provisioning in GMPLS Networks

July 1, 2002
Author(s)
Sanghun Lee, David W. Griffith, N-O Song
As GMPLS and its supporting set of protocols develop into aviable control plane for optical networks, an important function that they will need to support will be the protection and restoration function that has been a major feature of legacy optical

Document Understanding Conferences Website

July 1, 2002
Author(s)
Ellen M. Voorhees
This paper demonstrates that, for large-scale tests, the match and non-match similarity scores have no specific underlying distribution function. The forms of these distribution functions require a nonparametric approach for the analysis of the fingerprint

Quantum Computing and Communication

June 28, 2002
Author(s)
Paul E. Black, David R. Kuhn, Carl J. Williams
A quantum computer, if built, will be to an ordinary computer as a hydrogen bomb is to gunpowder, at least for some types of computations. Today no quantum computer exists, beyond laboratory prototypes capable of solving only tiny problems, and many

Measuring the Impact of Information on Complex Systems

June 1, 2002
Author(s)
Larry H. Reeker, Albert W. Jones
The application of power-driven machinery to manufacturing and other areas of human endeavor characterized the Industrial Revolution in the 18th and 19th centuries. Measurement contributed in many ways to the increasing economic influence of these machines

Modeling CPU Demand in Heterogeneous Active Networks

June 1, 2002
Author(s)
V Galtier, Kevin L. Mills, Y Carlinet
Active-network technology envisions deployment of virtual execution environments within network elements, such as switches and routers. As a result, application-specific processing can be applied to network traffic. To use such technology safely and

Video Transmission for 3G Mobile Communication Systems

June 1, 2002
Author(s)
Hamid Gharavi, K Ban
This paper presents the design and implementation of a mobile ad-hoc network for video communications. The network architecture is based on cluster-to-cluster operation using IEEE 802.11b FHSS (Frequency Hopping Spread Spectrum). FHSS is considered to

Kinetic Spanning Trees for Minimum-Power Routing in MANETS

May 30, 2002
Author(s)
Camillo Gentile, R E. Van Dyck
A distributed kinetic spanning tree algorithm is proposed for routing in wireless mobile ad hoc networks. Assuming a piecewise linear motion model for the nodes, the sequence of shortest-path spanning trees is determined, valid until the time of the next
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