NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Information Technology

Search Publications

Search Title, Abstract, Conference, Citation, Keyword or Author
  • Published Date
Displaying 1501 - 1525 of 2282

TREC: An Overview

February 17, 2006
Author(s)
Donna K. Harman, Ellen M. Voorhees
The Text REtrieval Conference (TREC) is a workshop series designed to build the infrastructure necessary for large-scale evaluation of text retrieval technology. Participants in the workshops (over 100 groups in the latest TREC) have been drawn from the

Technical and Economic Assessment of Internet Protocol Version 6 (IPv6)

January 31, 2006
Author(s)
Gregory C. Tassey, Douglas C. Montgomery, Alfred Lee, Tim Sloan
The President’s National Strategy to Secure Cyberspace (National Strategy) directed the Secretary of Commerce to form a task force to examine the most recent iteration of the Internet Protocol, IP version 6 (IPv6). The President charged the task force with

Application of Beamforming in Wireless Location Estimation

January 1, 2006
Author(s)
Kamran Sayrafian, D Kaspar
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled

Joint Rate Adaptation and Channel-Adaptive Relaying in 802.11 Ad Hoc Networks

January 1, 2006
Author(s)
Michael R. Souryal, Nader Moayeri
Channel-adaptive relaying has recently been proposed as a means to exploit spatial and temporal diversity in multihop ad hoc networks with fading. In conjunction with appropriate routing protocols, adaptive relaying enables each forwarding node in a

Source-Assisted Direction Estimation Inside Buildings

January 1, 2006
Author(s)
Kamran Sayrafian, D Kaspar
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled

Toward Secure Routing Infrastructures

January 1, 2006
Author(s)
Douglas C. Montgomery, Sandra Murphy
Routing infrastructures are possibly the most vital, complex, and fragile components in the global information infrastructure. They are also the least protected from attack. In the public Internet, for example, the IP routing infrastructure comprises tens

The History of IDF and its Influences on IR and Other Fields

December 21, 2005
Author(s)
Donna K. Harman
The surprisingly simple IDF measure developed in 1972 by Karen Sparck Jones has continued to dominate the term weighting metrics used in information retrieval, despite several efforts to develop more complex measures of term distribution. It has been

The Role of Semantic Roles in Disambiguating Verb Senses

December 19, 2005
Author(s)
Hoa T. Dang, Martha S. Palmer
We describe an automatic Word Sense Disambiguation (WSD) system that disambiguates verb senses using syntactic and semantic features that encode information about predicate arguments and semantic classes. Our system performs better than the best published

Integrity Checking of DNS Zone File Data Using XSLT

December 1, 2005
Author(s)
Ramaswamy Chandramouli, Scott W. Rose
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled

An Evaluation of Ultra Wideband Technology for Indoor Ranging

November 1, 2005
Author(s)
Camillo Gentile, El Kik
Ultra wideband technology shows promise for precision ranging due to its fine time resolution to resolve multipath fading and the presence of lower frequencies in the baseband to penetrate walls. While a concerted effort has been conducted in the

Planning Report 05-2: IPv6 Economic Impact Assessment

October 31, 2005
Author(s)
Gregory C. Tassey
This report presents estimates of the costs and benefits associated with transitioning from Internet Protocol Version 4 (IPv4) to Internet Protocol Version 6 (IPv6). Cost estimates are based on likely development and deployment scenarios provided by

Handovers and Interference Mitigation in Healthcare Environments

October 17, 2005
Author(s)
Nicolas Chevrollier, Nicolas Montavont, Nada T. Golmie
In this article, we consider candidate wireless technologies such as IEEE 802.11b, and IEEE 802.15.4 that can support medical and healthcare informatics applications. The main questions that we try to answer are: (1) is there any potential for significant

High Speed Fiber-Based Quantum Key Distribution using Polarization Encoding

October 5, 2005
Author(s)
Xiao Tang, Lijun Ma, Alan Mink, Anastase Nakassis, Barry J. Hershman, Joshua Bienfang, Ronald Boisvert, Charles W. Clark, Carl J. Williams, A Gross, E Hagley, J Wen
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled

A Cross-Correlation Based Method for Spatial-Temporal Traffic Analysis

October 1, 2005
Author(s)
Kevin L. Mills, Y. L. Jiang
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled

A Model-Based Analysis of First-Generation Service Discovery Systems

October 1, 2005
Author(s)
Christopher E. Dabrowski, Kevin L. Mills, Stephen Quirolgico
Future commercial software systems will be based on distributed service-oriented architectures in which applications are composed dynamically from remote components. A key part of service-oriented computing is the ability for clients to discover remote

An Efficient Power-Saving Mechanism for Integration of WLAN and WWAN Networks

October 1, 2005
Author(s)
San-Nan K. Lee, S H. Seo, Nada T. Golmie
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled

Channel-Adaptive Relaying in Mobile Ad Hoc Networks with Fading

October 1, 2005
Author(s)
Michael R. Souryal, Nader Moayeri
This paper describes an approach for relaying in multihop networks that adapts to the time-varying channel and exploits spatial diversity to mitigate multipath fading. Ignored in some simulation-based performance analyses, fading arises from multipath

DNSSEC Test and Measurement Tools: Secure Zone Integrity Tester v0.9.3, Zone Monitoring Tool v0.9, dns Trace : traffic statistics collection tool, querysim : DNS query workload monitoring tool

October 1, 2005
Author(s)
Scott W. Rose, Darrin J. Santay, Douglas Montgomery, Kevin L. Mills, Stephen Quirolgico, M Ramaswamy
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled

DTR-MESA-SYS0070012: System Reference Architecture

October 1, 2005
Author(s)
L T. Klein-berdnt
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled

Dymo Implementation

October 1, 2005
Author(s)
L T. Klein-berdnt
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled
Was this page helpful?