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Information Technology

Data & informatics

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Displaying 451 - 475 of 661

Guidelines for Media Sanitization

September 1, 2006
Author(s)
Richard L. Kissel, Matthew A. Scholl, Steven Skolochenko, Xiang Li
Information systems capture, process, and store information using a wide variety of media. This information is located not only on the intended storage media but also on devices used to create, process, or transmit this information. These media may require

Metrics and Methodologies for Evaluating Technologies for Intelligence Analysts

August 21, 2006
Author(s)
Emile L. Morse, Michelle P. Steves, Jean C. Scholtz
In this paper we discuss the evaluation methodologies and metrics we have developed for ARDA's Novel Intelligence for Massive Data (NIMD) program. We discuss the challenges of developing methods and metrics in a situation where software components that

Dark Encounter Computations (And Musings on Biological Networks)

August 1, 2006
Author(s)
Rene C. Peralta
We describe two models of distributed computation in which the agents are anonymous finite-state sensors interacting through a communication network whose dynamics (in case the agents are mobile) and/or topology they do not control or even know about

Phase-Field Modeling of Solidification under Stress

January 1, 2006
Author(s)
J Slutsker, K Thornton, Alexander Roytburd, A Warren, Geoffrey B. McFadden, P W. Voorhees
Effective visualizations can help researchers obtain a more complete understanding of high-level mathematical functions that arise in mathematics, statistics, physics, fluid dynamics and other fields of the mathematical and physical sciences. Accordingly

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 Diner's Guide to Evaluating a Framework for Ubiquitous Computing Applications

October 1, 2005
Author(s)
Mary F. Theofanos, Jean C. Scholtz
There is a clear need for evaluation methodologies specifically suited to ubiquitous computing applications. Here we investigate a user evaluation framework we proposed earlier which draws upon traditional desktop methods, but carefully adapts them based

A Questionnaire to Assess the Difficulty of Open Source Analysis Taskings

October 1, 2005
Author(s)
T T. Hewett, Jean C. Scholtz
Our goal is to produce metrics for assessing the impact of software tools and environments produced for the intelligence community. To this end we are developing a task difficulty questionnaire to attempt to identify and assess the impact of task

A Tool Kit to Generate 3D Animated CAESAR Bodies

October 1, 2005
Author(s)
Quandou (. Wang, Sanford P. Ressler
The Civilian American and European Surface Anthropometry Resource (CAESAR) database provides a comprehensive source for body measurement in numerous industries such as apparel, aerospace, and automobile. Generating animated CAESAR body sequences from still

Developing a Difficulty Metric for Open Source Analytic Tasks

October 1, 2005
Author(s)
T T. Hewett, Jean C. Scholtz
Our goal is to produce metrics for assessing the impact of software tools and environments produced for the intelligence community. To this end we need to understand the variables that make some analytic tasks harder than others and to determine which data

Embedding MPEG-7 Metadata Within a Media File Format

October 1, 2005
Author(s)
Wo L. Chang
Embedding metadata within a media file format becomes evermore popular for digital media. Traditional digital media files such as MP3 songs and JPEG photos do not carry any metadata structures to describe the media content until these file formats got

Industry USability Reporting

October 1, 2005
Author(s)
Sharon J. Laskowski
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

Linear Stability of Cylindrical Couette Flow in the Convection Regime

October 1, 2005
Author(s)
M E. Ali, Geoffrey B. McFadden
Instability of steady circular Couette flow with radial heating across a vertically oriented annulus with inner cylinder rotating and outer cylinder stationary is investigated using linear stability analysis. The convection regime base flow is developed

MPEG-7: Standard Metadata for Multimedia Content

October 1, 2005
Author(s)
Wo L. Chang
The XML metadata technology of describing media contents has emerged as a dominant mode of making media searchable both for human and machine consumptions. To realize this promise, many online Web applications are pushing this concept to its full potential

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

Strategic Directions in Information and Knowledge Management

October 1, 2005
Author(s)
Stephen Quirolgico
We examine the performance of multimodal biometric authentication systems using state-of-the-art Commercial Off-the-Shelf (COTS) fingerprint and face biometric systems on a population approaching 1,000 individuals. Majority of prior studies of multimodal

WEAR: World Engineering Antropometry Resource Website

October 1, 2005
Author(s)
Sanford P. Ressler
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

MPEG-A: A Step Forward in MPEG Standardization

August 1, 2005
Author(s)
Diepold Klaus, F Pereira, Wo L. Chang
MPEG standards are shaping the multimedia landscape since the beginning of the nineties. After the MPEG-1, MPEG-2, and MPEG-4 multimedia coding standards, the MPEG-7 content description standard and the MPEG-21 multimedia framework standard, MPEG is taking
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