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NASA Scientific and Technical Aerospace Reports

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such as ADSL <strong>and</strong> FTTH, we are now about to enter a ubiquitous communications age in which it will be possible to exchange<br />

information with anyone at anytime, anywhere. As a result, information <strong>and</strong> communications services are becoming an<br />

essential element of our daily societal infrastructure. Today, information <strong>and</strong> communications technology, involving, for<br />

example, fixed <strong>and</strong> mobile phones, Internet search <strong>and</strong> information exchange, <strong>and</strong> electronic payment, is already deeply woven<br />

into society, mirroring the historical integration of electricity, water <strong>and</strong> sewerage, gas, <strong>and</strong> public transport into our daily lives.<br />

Unfortunately, as a result of this integration, computer viruses <strong>and</strong> other malicious data operations are now capable of breaking<br />

into PCs <strong>and</strong> databases <strong>and</strong> causing significant disruptions. Given the increasing scale of cyber attacks, wide-area information<br />

network infrastructures are growing more vulnerable.<br />

Derived from text<br />

Information Systems; Security; Data Processing; Internets; Wide Area Networks<br />

20060002203 Pacific Northwest National Lab., Richl<strong>and</strong>, WA, USA<br />

Preparing PNNL <strong>Reports</strong> with LaTeX<br />

Waichler, S. R.; Jun. 2005; 60 pp.; In English<br />

Report No.(s): DE2005-15016481; PNNL-15197; No Copyright; Avail.: National <strong>Technical</strong> Information Service (NTIS)<br />

LaTeX is a mature document preparation system that is the st<strong>and</strong>ard in many scientific <strong>and</strong> academic workplaces. It has<br />

been used extensively by scattered individuals <strong>and</strong> research groups within PNNL for years, but until now there have been no<br />

centralized or lab-focused resources to help authors <strong>and</strong> editors. PNNL authors <strong>and</strong> editors can produce correctly formatted<br />

PNNL or PNWD reports using the LaTeX document preparation system <strong>and</strong> the available template files. In LaTeX, document<br />

content is maintained separately from document structure for the most part. This means that the author can easily produce the<br />

same content in different formats <strong>and</strong>, more importantly, can focus on the content <strong>and</strong> write it in a plain text file that doesn’t<br />

go awry, is easily transferable, <strong>and</strong> won’t become obsolete due to software changes. LaTeX produces the finest print quality<br />

output; its typesetting is noticeably better than that of MS Word. This is particularly true for mathematics, tables, <strong>and</strong> other<br />

types of special text. Other benefits of LaTeX: easy h<strong>and</strong>ling of large numbers of figures <strong>and</strong> tables; automatic <strong>and</strong> error-free<br />

captioning, citation, cross-referencing, hyperlinking, <strong>and</strong> indexing; excellent published <strong>and</strong> online documentation; free or<br />

low-cost distributions for Windows/Linux/Unix/Mac OS X. This document serves two purposes: (1) it provides instructions<br />

to produce reports formatted to PNNL requirements using LaTeX, <strong>and</strong> (2) the document itself is in the form of a PNNL report,<br />

providing examples of many solved formatting challenges. Authors can use this document or its skeleton version (with<br />

formatting examples removed) as the starting point for their own reports.<br />

NTIS<br />

Documentation; Format; Unix (Operating System); Texts<br />

20060002403 Massachusetts Univ., Amherst, MA USA<br />

TREC-6 Interactive Track Report. Part 1: Experimental Procedure <strong>and</strong> Initial Results<br />

Byrd, Don; Swan, Russell; Allan, James; Jan. 1, 2005; 34 pp.; In English<br />

Report No.(s): AD-A440416; No Copyright; Avail.: Defense <strong>Technical</strong> Information Center (DTIC)<br />

The TREC-6 Interactive Track concentrated on Aspect-Oriented Retrieval: finding at least one document that covers each<br />

aspect of relevance to a given topic as opposed to the usual information-retrieval task of simply finding documents containing<br />

as much information as possible about the topic. For this track, we at the Center for Intelligent Information Retrieval of the<br />

University of Massachusetts designed <strong>and</strong> ran our first-ever user study.<br />

DTIC<br />

Information Retrieval; Data Processing<br />

20060002455 Duke Univ., Durham, NC USA<br />

Sensor Modeling <strong>and</strong> Multi-Sensor Data Fusion<br />

Garg, Devendra P.; Kumar, Manish; Aug. 26, 2005; 19 pp.; In English<br />

Contract(s)/Grant(s): W911NF-04-1-0434<br />

Report No.(s): AD-A440553; RAMA-ARO-101; ARO-47513.1-C1-11; No Copyright; Avail.: Defense <strong>Technical</strong> Information<br />

Center (DTIC)<br />

This research report presents a novel strategy to develop a sensor model based on a probabilistic approach that would<br />

accurately provide information about individual sensor’s uncertainties <strong>and</strong> limitations. The strategy also establishes the<br />

dependence of sensor’s uncertainties on some of environmental parameters or parameters of any feature extraction algorithm<br />

used in estimation based on sensor’s outputs. The approach makes use of a neural network that is trained with the help of an<br />

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