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Information Technology

Data & informatics

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Displaying 426 - 450 of 665

Overview of the TREC 2006 Question Answering Track

November 5, 2008
Author(s)
Hoa T. Dang, Jimmy Lin, Diane Kelly
The TREC 2006 question answering track contained two tasks: a main task and a complex, interactive question answering (ciQA) task. As in 2005, the main task consisted of series of factoid, list, and ``Other'' questions organized around a set of targets

Shape and Size Analysis and Standards

October 6, 2008
Author(s)
Afzal A. Godil, Sanford P. Ressler
The field of anthropometry is the science of measurement of the human body from which comparisons and characterizations of the size and shape of the body in different postures can take place. The size and shape of human bodies are important in many

Limits of Opinion-Finding Baseline Systems

July 21, 2008
Author(s)
Ian M. Soboroff, Craig Macdonald, Ben He, Iadh Ounis
In opinion-finding, the retrieval system is tasked with re- trieving not just relevant documents, but which also express an opinion towards the query target entity. Most opinion- finding systems are based on a two-stage approach, where initially the system

Relevance assessment: are judges exchangeable and does it matter?

July 21, 2008
Author(s)
Ian M. Soboroff, Peter Bailey, Nick Craswell, Alan Smeaton, Emine Yilmaz, Paul Thomas
We investigate to what extent people making relevance judgments for a reusable IR test collection are exchangeable. We consider three classes of judge: gold standard judges, who are topic origi- nators and are experts in a particular information seeking

Reversal mechanisms in perpendicular magnetic nanostructures

July 16, 2008
Author(s)
Justin M. Shaw, Stephen E. Russek, Michael J. Donahue, Thomas Thomson, Bruce Terris, Michael Schneider, Miles Olsen
We find that the reversal mechanism in magnetic nanostructures is highly dependent on the nature and condition of the edges. Temperature and size dependent reversal properties of fabricated perpendicularly magnetized nanostructures down to 25 nm in

Translation Adequacy and Preference Evaluation Tool (TAP-ET)

May 28, 2008
Author(s)
Mark A. Przybocki, Kay Peterson, P. S. Bronsart
Evaluation of Machine Translation (MT) technology is often tied to the requirement for tedious manual judgments of translation quality. While automated MT metrology continues to be an active area of research, a well known and often accepted standard metric

On The TREC Blog Track

April 30, 2008
Author(s)
Iadh Ounis, Craig Macdonald, Ian Soboroff
The rise of blogging as a new grassroots publishing medium and the many interesting peculiarities that characterize blogs compared to other genres of documents opened up several new interesting research areas in the information retrieval field. The Blog

On Maximizing Provider Revenue in Market-based Compute Grids

April 17, 2008
Author(s)
Vladimir V. Marbukh, Kevin L. Mills
Market-based compute grids encompass service providers offering limited resources to potential users with varying demands and willingness to pay. Providers face difficult decisions about which jobs to admit and when to schedule admitted jobs. For this

User-Centered Usability Engineering Processes for Websites

April 7, 2008
Author(s)
Theresa O'Connell, E Murphy
For Websites to succeed, they must be user-centered. This is accomplished through usability engineering. The first part of this article gives usability engineering definitions; the second describes its processes.

Evaluating Visual Analytics: The 2007 Visual Analytics Science and Technology Symposium Contest

January 14, 2008
Author(s)
Catherine Plaisant, Georges Grinstein, Jean Scholtz, Mark Whiting, Theresa O'Connell, Sharon J. Laskowski, T Chien, A Tat, W Wright, C Gorg, Z Liu, N Parekh, K Singhal, John Stasko
The second Visual Analytics Science and Technology (VAST) contest?s data consisted of a heterogeneous synthetic collection of news articles with additional supporting files and contained a scenario with embedded threats that provided ground truth. Using

VAST 2007 Contest - Blue Iguanadon

October 30, 2007
Author(s)
Georges Grinstein, Catherine Plaisant, Theresa O'Connell, Sharon J. Laskowski, Jean Scholtz, Mark Whiting
Visual analytics experts realize that one effective way to push the field forward and to develop metrics for measuring the performance of various visual analytics components is to hold an annual competition. The second Visual Analytics Science and

Precise Time Synchronization in Semiconductor Manufacturing

October 3, 2007
Author(s)
Vinod Anandarajah, Naveen Kalappa, Julien L. Baboud, Ya-Shian Li-Baboud, James Moyne
In today's fabs, coordination of time-based information throughout the factory and enterprise has become necessary. This has driven the need to have time synchronization at all levels of the enterprise. Time synchronization protocols such as Network Time

Conformance Test Suite for CBEFF Biometric Information Records

September 29, 2007
Author(s)
Yooyoung Lee, Fernando L. Podio, Mark Jerde
Deployment of standards-based biometric technologies is expected to significantly raise levels of security for critical infrastructures that has not been possible to date with other technologies. These systems require a comprehensive set of technically

Fab-wide Network Time Synchronization - Simulation and Analysis

September 28, 2007
Author(s)
Naveen Kalappa, Vinod Anandarajah, Julien L. Baboud, Ya-Shian Li-Baboud, James Moyne
In today?s fabs, coordination of time-based information throughout the factory and enterprise has become necessary. This has driven the need to have time synchronization at all levels of the enterprise. Time synchronization protocols such as Network Time

A Comparison of Pooled and Sampled Relevance Judgments

August 29, 2007
Author(s)
Ian M. Soboroff
Test collections are most useful when they are reusable, that is, when they can be reliably used to rank systems that did not contribute to the pools. Pooled relevance judgments for very large collections may not be reusable for two reasons: they will be

Estimating Common Vector Parameters in Interlaboratory Studies

March 13, 2007
Author(s)
Andrew L. Rukhin
The primary goal of this work is to extend two methodsof random effects models to multiparameter situation. These methods comprise the DerSimonian-Laird estimator, arising in the meta-analysis, and the Mandel-Paule algorithm widely used in interlaboratory
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