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Information Technology

Data & informatics

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Displaying 251 - 275 of 661

Re-Projection of Terabyte-sized 3D Images for Interactive Visualization

October 9, 2013
Author(s)
Peter Bajcsy, Antoine Vandecreme, Mary C. Brady
How does one inspect terabyte-sized 3D images visually from multiple viewpoints? The current solutions are limited to gigabyte-sized images using specialized hardware to achieve interactivity and lacking the ability to share data for collaborative research

Re-projection of Terabyte-Sized Images

October 7, 2013
Author(s)
Peter Bajcsy, Antoine Vandecreme, Mary C. Brady
This work addresses the problem of re-projecting a terabyte-sized 3D data set represented as a set of 2D Deep Zoom pyramids. In general, a re-projection for small 3D data sets is executed directly in RAM. However, RAM becomes a limiting factor for terabyte

Terabyte Size Image Computations on Hadoop Cluster Platforms

October 7, 2013
Author(s)
Peter Bajcsy, Antoine Vandecreme, Julien M. Amelot, Phuong T. Nguyen, Joe Chalfoun, Mary C. Brady
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 benchmarks and

A Vision of Cyber-Physical Cloud Computing for Smart Networked Systems

August 26, 2013
Author(s)
Eric D. Simmon, Kyoung-sook Kim, Eswaran Subrahmanian, Ryong Lee, Frederic J. de Vaulx, Yohei Murakami, Koji Zettsu, Ram D. Sriram
A key aspect of the next generation Smart Networked System (SNS) is the bridge between the physical and virtual world. These systems that tightly interlink the cyber and physical worlds are often referred to as Cyber-Physical Systems (CPS). A CPS is the

Overview of the NIST Open Keyword Search 2013 Evaluation Worksho

August 23, 2013
Author(s)
Jonathan G. Fiscus, Nancy Chen
The NIST Open Keyword Search 2013 (OpenKWS13) Evaluation Workshop was the culmination of the first in a series of community-wide evaluations to test research systems that search for keywords in audio of a "surprise" language. OpenKWS13 made use of the

Overview of the TREC 2011 Microblog Track

August 15, 2013
Author(s)
Ian M. Soboroff, Iadh Ounis, Craig Macdonald, Jimmy Lin
The Microblog track examines search tasks and evaluation methodologies for information seeking behaviors in microblogging environments such as Twitter. It was first introduced in 2011, addressing a real-time adhoc search task, whereby the user wishes to

Multilingual Summarization: Dimensionality Reduction and a Step Towards Optimal Term Coverage

August 9, 2013
Author(s)
Yi-Kai Liu, John M. Conroy, Sashka T. Davis, Jeff Kubina, Dianne P. O'Leary, Judith D. Schlesinger
In this paper we present three term weighting approaches for multi-lingual document summarization and give results on the DUC 2002 data as well as on the 2013 Multilingual Wikipedia feature articles data set. We introduce a new interval-bounded nonnegative

NIST Ontological Visualization Interface for Standards: Users Guide

August 1, 2013
Author(s)
David J. Lechevalier, Anantha Narayanan Narayanan, Katherine C. Morris, Sean Reidy, Sudarsan Rachuri
The NIST Ontological Visualization Interface for Standards (NOVIS) was developed at the National Institute of Standards and Technology (NIST) to provide an interactive visual interface to the terminology used in a variety of standards related to

Three Years of DLMF: Web, Math & Search

August 1, 2013
Author(s)
Bruce R. Miller
DLMF was released to the public in May 2010 and is now completing its 3rd year online. As a somewhat early adopter of large-scale MathML content online, and exposing a math-aware search engine to the public, the project encountered situations distinct from

Significance Test with Data Dependency in Speaker Recognition Evaluation

July 25, 2013
Author(s)
Jin Chu Wu, Alvin F. Martin, Craig S. Greenberg, Raghu N. Kacker, Vincent M. Stanford
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 same

LaTeXML 2012 -- A Year of LaTeXML

July 5, 2013
Author(s)
Deyan Ginev, Bruce R. Miller
LaTeXML, a TeX to XML converter, is being used in a wide range of MKM applications. In this paper, we present a progress report for the 2012 calendar year. Noteworthy enhancements include: increased coverage such as Wikipedia syntax; enhanced capabilities

Parallel Geometric Classification of Stem Cells by Their 3D Morphology

July 1, 2013
Author(s)
Derek Juba, Antonio Cardone, Cheuk Y. Ip, Carl Simon Jr., Christopher K. Tison, Girish Kumar, Mary C. Brady
Autologous stem cells show great promise for tissue engineering as they can regenerate diseased or damaged tissue, without requiring an organ donor or causing immune rejection. A primary goal of regenerative medicine is to identify methods for controlling

Of Massive Static Analysis Data

June 20, 2013
Author(s)
Aurelien M. Delaitre, Vadim Okun, Elizabeth N. Fong
Static analysis produces large amounts of data. The volume of data allows for new developments in research. Practical observations of the effectiveness of static analysis tools can be derived from that data. The question of tool statistical independence

SemEval-2013 Task 7: The Joint Student Response Analysis and 8th Recognizing Textual Entailment Challenge

June 14, 2013
Author(s)
Myroslava Dzikovska, Rodney Nielsen, Chris Brew, Claudia Leacock, Danilo Giampiccolo, Luisa Bentivogli, Peter Clark, Ido Dagan, Hoa T. Dang
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

SHREC13 Track: Large Scale Sketch-Based 3D Shape Retrieval

June 6, 2013
Author(s)
Afzal A. Godil, Bo Li , Yijuan Lu, Tobias Schreck
Sketch-based 3D shape retrieval has become an important research topic in content-based 3D object retrieval. The aim of this track is to measure and compare the performance of sketch-based 3D shape retrieval methods based on a large scale hand-drawn sketch

Canonicalization in the PrIKL Reasoner

May 30, 2013
Author(s)
Don E. Libes, Antoine D. Gerardin, Severin Tixier, Fabian M. Neuhaus
Many objects in the PrIKL Reasoner have a canonical representation. This representation and its implementation required a number of choices with ramifications. This paper describes the choices, their consequences, and some of the more interesting

Secure Sealed-Bid Online Auctions Using Discreet Cryptographic Proofs

May 10, 2013
Author(s)
Rene C. Peralta, Jose A. Montenegro, Javier Lopez
This work describes the design and implementation of an auction system using secure multiparty computation techniques. Our aim is to produce a system that is practical under actual eld constraints on computation, mem- ory, and communication. The underlying
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