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Topic Area: Data and Informatics

Displaying records 1 to 10 of 181 records.
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1. Terabyte Size Image Computations on Hadoop Cluster Platforms
Topic: Data and Informatics
Published: 10/7/2013
Authors: Peter Bajcsy, Antoine Vandecreme, Julien Marc Amelot, Phuong Thi Thu Nguyen, Joe Chalfoun, Mary C Brady
Abstract: We present a characterization of four basic terabyte size image computations on a Hadoop cluster in terms of their relative efficiency according to the modified Amdahl‰s law. The work is motivated by the fact that there is a lack of standard benchmar ...

2. A Decade of Automatic Content Evaluation of News Summaries: Reassessing the State of the Art
Topic: Data and Informatics
Published: 8/5/2013
Authors: Peter Rankel, John M Conroy, Hoa Trang Dang, Ani Nenkova
Abstract: How good are automatic content metrics for news summary evaluation? Here we provide a detailed answer to this question, with a particular focus on assessing the ability of automatic evaluations to identify statistically significant differences ...

3. Significance Test with Data Dependency in Speaker Recognition Evaluation
Topic: Data and Informatics
Published: 7/25/2013
Authors: Jin Chu Wu, Alvin Martin, Craig Stuart Greenberg, Raghu N Kacker, Vincent M Stanford
Abstract: To evaluate the performance of speaker recognition systems, a detection cost function defined as a weighted sum of the probabilities of type I and type II errors is employed. The speaker datasets may have data dependency due to multiple uses of the s ...

4. SemEval-2013 Task 7: The Joint Student Response Analysis and 8th Recognizing Textual Entailment Challenge
Topic: Data and Informatics
Published: 6/14/2013
Authors: Myroslava Dzikovska, Rodney Nielsen, Chris Brew, Claudia Leacock, Danilo Giampiccolo, Luisa Bentivogli, Peter Clark, Ido Dagan, Hoa Trang Dang
Abstract: We present the results of the Joint Student Response Analysis and 8th Recognizing Textual Entailment Challenge, aiming to bring together researchers in educational NLP technology and textual entailment. The task of giving feedback on student answers ...

5. A Restricted English for Constructing Ontologies (RECON)
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7868
Topic: Data and Informatics
Published: 7/10/2012
Authors: Edward J Barkmeyer, Andreas K. Mattas
Abstract: Verifying correctness of stated facts, rules, and term definitions for an industrial domain of work requires the contributions of experts in the domain. Conversely, use of automated reasoning technologies to assist in making industry decisions and ...

6. SHREC‰12 Track: Generic 3D Shape Retrieval
Topic: Data and Informatics
Published: 5/13/2012
Authors: Bo Li, Afzal A Godil
Abstract: Generic 3D shape retrieval is a fundamental research area in the field of content-based 3D model retrieval. The aim of this track is to measure and compare the performance of generic 3D shape retrieval methods implemented by different participant ...

7. A Matter of Policy
Topic: Data and Informatics
Published: 3/26/2012
Authors: David F Ferraiolo, Jeffrey Mark Voas, George Hurlburt
Abstract: This paper discusses system security policies. System policies are the set of rules that when implemented afford a strategy for the protection of information. The policy objectives are diverse and span the social-economic spectrum. System policies g ...

8. An Evaluation of Local Shape Descriptors for 3D Shape Retrieval
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7812
Topic: Data and Informatics
Published: 3/8/2012
Author: Sarah Y. Tang
Abstract: As the usage of 3D models increases, so does the importance of developing accurate 3D shape retrieval algorithms. Most prominently, shape descriptors are used to describe the geometric and topological properties of objects and compared to determine t ...

9. Versus: A Framework for General Content-Based Comparisons
Topic: Data and Informatics
Published: 12/5/2011
Authors: Peter Bajcsy, Antoine Vandecreme, Benjamin J Long, Paul Khouri Saba, Joe Chalfoun, Luigi Marini, Devin Bonnie, Rob Kooper, Michal Ondrejcek, Kenton McHenry
Abstract: Abstract,We present a framework for the execution and dissemination of customizable content-based file comparison methods. Given digital objects such as files, database entries, or in-memory data structures, we are interested in establishing thei ...

10. Objective Evaluation of Imager Performance
Topic: Data and Informatics
Published: 12/1/2011
Authors: Francine K. Amon, Dennis D Leber, Nicholas G Paulter Jr
Abstract: We describe a method by which the evaluation and characterization of the performance of an imager can be done objectively and scientifically, that is, without routine operator interpretation. Although this method is demonstrated herein for passive l ...

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