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Search Publications

NIST Authors in Bold

Displaying 35851 - 35875 of 73697

Novelty Detection: The TREC Experience

October 1, 2005
Author(s)
Ian M. Soboroff, Donna K. Harman
A challenge for search systems is to detect not only when an item is relevant to the user's information need, but also when it contains something new which the user has not seen before. In the TREC novelty track, the task was to highlight sentences

Overview of the Face Recognition Grand Challenge

October 1, 2005
Author(s)
P J. Phillips, P J. Flynn, W T. Scruggs, K W. Bowyer, J S. Chang, K Hoffman, J Marques, J Min, W Worek
Over the last couple of years, face recognition researchers have been developing new techniques, such as recognition from three-dimensional and high resolution imagery. These developments are being fueled by advances in computer vision techniques, computer

Performance Analysis of Low Rate Wireless Technologies for Medical Applications

October 1, 2005
Author(s)
Nada T. Golmie, David E. Cypher, O Rebala
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

Preparation and Flame Resistance Properties of Revolutionary Self-Extinguishing Epoxy Nanocomposites Based on Layered Double Hydroxides

October 1, 2005
Author(s)
Mauro Zammarano, Massimiliano Franceschi, S Bellayer, Jeffrey W. Gilman, Sergio Meriani
Layered double hydroxides/epoxy nanocomposites (LDHs/EP) were prepared from organo modified LDHs, a diglycidyl ether of bisphenol A monomer (DGEBA) and amine curing agents. The organomodified LDHs were obtained by ionic exchange of a magnesium-aluminum

Propagation and Detection of Radio Signals Before, During, and After the Implosion of a Large Sports Stadium (Veterans Stadium in Philadelphia)

October 1, 2005
Author(s)
Christopher L. Holloway, Galen H. Koepke, Dennis G. Camell, Catherine A. Remley, Dylan F. Williams, Susan A. Schima, Seturnino Canales
In this report, we investigate radio communications problems faced by emergency responders (firefighters and police) in disaster situation such as collapsed buildings. A fundamental challenge to communications into and out of large buildings is the strong

Protection Switching for Optical Bursts Using Segmentation and Deflection Routing

October 1, 2005
Author(s)
David W. Griffith, Kotikalapudi Sriram, Nada T. Golmie
Burst segmentation in OBS networks can significantly reduce the amount of data that is lost due to contention events by dropping or deflecting only the portion of a burst that overlaps another contending burst. In this letter, we demonstrate how

Proximity effects in the calibration of microwave radiometers

October 1, 2005
Author(s)
Ronald C. Wittmann, Amanda Cox, Randy Direen
Microwave, total-power radiometers are calibrated by observing sources of known brightness temperature. Free-space calibrations are usually performed assuming far-field interactions, although the actual calibration source may be well into the near-field

Proximity-Based Authentication for Mobile Devices

October 1, 2005
Author(s)
Wayne Jansen, Serban I. Gavrila, Vlad Korolev
While mobile handheld devices provide productivity benefits, they also pose new risks. User authentication is the best safeguard against the risk of unauthorized use and access to a device's contents. This paper describes two location-based user

Public Safety Wireless Technology Links

October 1, 2005
Author(s)
Leonard E. Miller
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

Quantum Computing with Realistically Noisy Devices

October 1, 2005
Author(s)
Emanuel H. Knill
There are quantum algorithms that can efficiently simulate quantum physics, factor large numbers and estimate integrals. As a result, quantum computers can solve otherwise intractable computational problems. One of the main problems of experimental quantum

Resource Planning and Bandwidth Allocation in Hybrid Fiber-Coax Residential Networks

October 1, 2005
Author(s)
David W. Griffith, Kotikalapudi Sriram, L Krivulina, 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

Results of Some Applications using IEEE 802.15.4

October 1, 2005
Author(s)
David E. Cypher
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

RFID-Assisted Localization and Communications for First Responders

October 1, 2005
Author(s)
Leonard E. Miller
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

Selection of Alternatives to Liquid-in-Glass Thermometers

October 1, 2005
Author(s)
Dean C. Ripple, Gregory F. Strouse
A desire to increase automation or to eliminate the use of mercury has prompted several ASTM committees to consider alternatives to ASTM Liquid-in-Glass (LiG) thermometers. In this paper, we address the technical issues of choosing an alternative. We first

Smart Space Laboratory Website

October 1, 2005
Author(s)
Vincent M. Stanford
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

Soft Decision Metrics for Turbo-Coded FH M-FSK Ad Hoc Packet Radio Networks

October 1, 2005
Author(s)
B M. Peric, Michael R. Souryal, E G. Larsson, B R. Vojcic
This paper addresses turbo-coded non-coherent FH M-FSK ad hoc networks with a Poisson distribution of interferers where multiple access interference can be modeled as symmetric a-stable (SaS) noise and a is inversely proportional to the path loss exponent

Software Assurances Metrics and Tool Evaluation

October 1, 2005
Author(s)
Paul E. Black
The National Software Reference Library (NSRL) of the U.S. National Institute of Standards and Technology (NIST) collects software from various sources and publishes file profiles computed from this software (such as MD5 and SHA-1 hashes) as a Reference
Displaying 35851 - 35875 of 73697
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