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BioZoom: Exploiting Source-Capability Information for Integrated Access to Multiple Bioinformatics Data Sources (open access)

BioZoom: Exploiting Source-Capability Information for Integrated Access to Multiple Bioinformatics Data Sources

Modern Bioinformatics data sources are widely used by molecular biologists for homology searching and new drug discovery. User-friendly and yet responsive access is one of the most desirable properties for integrated access to the rapidly growing, heterogeneous, and distributed collection of data sources. The increasing volume and diversity of digital information related to bioinformatics (such as genomes, protein sequences, protein structures, etc.) have led to a growing problem that conventional data management systems do not have, namely finding which information sources out of many candidate choices are the most relevant and most accessible to answer a given user query. We refer to this problem as the query routing problem. In this paper we introduce the notation and issues of query routing, and present a practical solution for designing a scalable query routing system based on multi-level progressive pruning strategies. The key idea is to create and maintain source-capability profiles independently, and to provide algorithms that can dynamically discover relevant information sources for a given query through the smart use of source profiles. Compared to the keyword-based indexing techniques adopted in most of the search engines and software, our approach offers fine-granularity of interest matching, thus it is more powerful and …
Date: January 9, 2003
Creator: Liu, Ling; Buttler, David; Critchlow, Terence J.; Han, Wei; Paques, Henrique; Pu, Calton et al.
Object Type: Article
System: The UNT Digital Library
Machine Learning for Name Type Classification in Library Metadata (open access)

Machine Learning for Name Type Classification in Library Metadata

This paper describes a study to investigate automatic type classification using machine learning approaches.
Date: August 9, 2017
Creator: Phillips, Mark Edward & Chen, Jiangping
Object Type: Paper
System: The UNT Digital Library
Application of QR Codes in Library Services: Beyond Q (open access)

Application of QR Codes in Library Services: Beyond Q

This paper explores the possibilities of using QR codes in providing different library services.
Date: November 9, 2018
Creator: Verma, Vijay Kumar & Ranjan, Manish
Object Type: Paper
System: The UNT Digital Library
Characterization of a Semantic Relations Taxonomy in Biomedical Science (open access)

Characterization of a Semantic Relations Taxonomy in Biomedical Science

This paper characterizes the Ontobee relations ontology in the biomedical science domain with comparisons to the Conflict and Mediation Event Observation (CAMEO) relations taxonomy and the UMLS semantic network relations.
Date: November 9, 2018
Creator: Wu, Yejun & Yang, Li
Object Type: Paper
System: The UNT Digital Library
Towards an Understanding of Data Ethics in LIS (open access)

Towards an Understanding of Data Ethics in LIS

This paper aims to delineate data ethics in the library and information science fields based on the diverse body of literature on the topic.
Date: November 9, 2018
Creator: Roeschley, Ana & Khader, Malak
Object Type: Paper
System: The UNT Digital Library
Balancing Scientific Publication and National Security Concerns: Issues for Congress (open access)

Balancing Scientific Publication and National Security Concerns: Issues for Congress

There is a lack of consensus regarding the best method of balancing scientific publishing and national security. The current federal policy, as described in National Security Decision Directive 189, is that fundamental research should remain unrestricted and that in the rare case where it is necessary to restrict such information, classification is the appropriate vehicle to do so. Other mechanisms restrict international information flow, where Export Administration Regulations (EAR) and International Traffic in Arms Regulations (ITAR) control export of items and technical information on specific lists. Both EAR and ITAR contain a fundamental research exclusion, but this exclusion is lost if prepublication review of research results for sensitive information occurs.
Date: July 9, 2003
Creator: Shea, Dana A.
Object Type: Report
System: The UNT Digital Library
LSST Science Book, Version 2.0 (open access)

LSST Science Book, Version 2.0

None
Date: July 9, 2013
Creator: Abell, Paul A.; Allison, Julius; Anderson, Scott F.; Andrew, John R.; Angel, J.; Roger, P. et al.
Object Type: Article
System: The UNT Digital Library
A Practical Mixed Analysis Framework for Arbitrary Binary Fragments (open access)

A Practical Mixed Analysis Framework for Arbitrary Binary Fragments

None
Date: November 9, 2011
Creator: Saebjoernsen, A; Matzke, R & Quinlan, D
Object Type: Article
System: The UNT Digital Library
Fundamental mechanisms in flue gas conditioning. Topical report No. 2, Literature review and assembly of theories on the interactions of ash and conditioning agents (open access)

Fundamental mechanisms in flue gas conditioning. Topical report No. 2, Literature review and assembly of theories on the interactions of ash and conditioning agents

The overall goal of this research project is to formulate a mathematical model of flue gas conditioning. This model will be based on an understanding of why ask properties, such as cohesivity and resistivity, are changed by conditioning. Such a model could serve as a component of the performance models of particulate control devices where flue gas conditioning is used. There are two specific objectives of this research project, which divide the planned research into two main parts. One part of the project is designed to determine how ash particles are modified by interactions with sorbent injection processes and to describe the mechanisms by which these interactions affect fine particle collection. The objective of the other part of the project is to identify the mechanisms by which conditioning agents, including chemically active compounds, modify the key properties of fine fly ash particles.
Date: January 9, 1992
Creator: Bush, P. V. & Snyder, T. R.
Object Type: Report
System: The UNT Digital Library
Fundamental mechanisms in flue-gas conditioning. Topical report No. 1, Literature review and assembly of theories on the interactions of ash and FGD sorbents (open access)

Fundamental mechanisms in flue-gas conditioning. Topical report No. 1, Literature review and assembly of theories on the interactions of ash and FGD sorbents

The overall goal of this research project is to formulate a mathematical model of flue gas conditioning. This model will be based on an understanding of why ash properties, such as cohesivity and resistivity, are changed by conditioning. Such a model could serve as a component of the performance models of particulate control devices where flue gas conditioning is used. There are two specific objectives of this research project, which divide the planned research into two main parts. One part of the project is designed to determine how ash particles are modified by interactions with sorbent injection processes and to describe the mechanisms by which these interactions affect fine particle collection. The objective of the other part of the project is to identify the mechanisms by which conditioning agents, including chemically active compounds, modify the key properties of fine fly ash particles.
Date: January 9, 1992
Creator: Dahlin, R. S.; Vann Bush, P. & Snyder, T. R.
Object Type: Report
System: The UNT Digital Library
Information Overload & Its Effect on High School Students (open access)

Information Overload & Its Effect on High School Students

This paper studies how high school students experience information overload, as well as their specific physical, emotional, and mental reactions.
Date: November 9, 2018
Creator: Zimmerman, Tara
Object Type: Paper
System: The UNT Digital Library
Performance of Neural Networks Methods In Intrusion Detection (open access)

Performance of Neural Networks Methods In Intrusion Detection

By accurately profiling the users via their unique attributes, it is possible to view the intrusion detection problem as a classification of authorized users and intruders. This paper demonstrates that artificial neural network (ANN) techniques can be used to solve this classification problem. Furthermore, the paper compares the performance of three neural networks methods in classifying authorized users and intruders using synthetically generated data. The three methods are the gradient descent back propagation (BP) with momentum, the conjugate gradient BP, and the quasi-Newton BP.
Date: July 9, 2001
Creator: Dao, V N & Vemuri, R
Object Type: Article
System: The UNT Digital Library
Legislative Research in Congressional Offices: A Primer (open access)

Legislative Research in Congressional Offices: A Primer

This report discusses the process of conducting legislative research: deciding the scope, collecting the information and evaluating sources. Members of Congress need many kinds of information and analysis to support their legislative, oversight, and representational work, including both quick facts, or information to improve their understanding of a complex set of issues.
Date: January 9, 2001
Creator: Wellborn, Clay H. & Kolakowski, Michael
Object Type: Report
System: The UNT Digital Library
An Evaluation of Parallel Job Scheduling for ASCI Blue-Pacific (open access)

An Evaluation of Parallel Job Scheduling for ASCI Blue-Pacific

In this paper we analyze the behavior of a gang-scheduling strategy that we are developing for the ASCI Blue-Pacific machines. Using actual job logs for one of the ASCI machines we generate a statistical model of the current workload with hyper Erlang distributions. We then vary the parameters of those distributions to generate various workloads, representative of different operating points of the machine. Through simulation we obtain performance parameters for three different scheduling strategies: (i) first-come first-serve, (ii) gang-scheduling, and (iii) backfilling. Our results show that backfilling, can be very effective for the common operating points in the 60-70% utilization range. However, for higher utilization rates, time-sharing techniques such as gang-scheduling offer much better performance.
Date: November 9, 1999
Creator: Franke, H.; Jann, J.; Moreira, J.; Pattnaik, P. & Jette, M.
Object Type: Article
System: The UNT Digital Library
Information Technology and Elementary and Secondary Education: Current Status and Federal Support (open access)

Information Technology and Elementary and Secondary Education: Current Status and Federal Support

This report provides an analysis of selected issues involving the application of information technology to elementary and secondary education, and federal policymaking in this area.
Date: June 9, 2000
Creator: O'Dea, Ptricia Osorio
Object Type: Report
System: The UNT Digital Library
Information Technology and Elementary and Secondary Education: Current Status and Federal Support (open access)

Information Technology and Elementary and Secondary Education: Current Status and Federal Support

CRS Report for Congress entailing information about the current status and federal report of information technology and elementary and secondary education. Topics include, recent action, major issues, federal policy questions etc..
Date: June 9, 2000
Creator: Osorio-O'Dea, Patricia
Object Type: Report
System: The UNT Digital Library
A Survey of Dimension Reduction Techniques (open access)

A Survey of Dimension Reduction Techniques

Advances in data collection and storage capabilities during the past decades have led to an information overload in most sciences. Researchers working in domains as diverse as engineering, astronomy, biology, remote sensing, economics, and consumer transactions, face larger and larger observations and simulations on a daily basis. Such datasets, in contrast with smaller, more traditional datasets that have been studied extensively in the past, present new challenges in data analysis. Traditional statistical methods break down partly because of the increase in the number of observations, but mostly because of the increase in the number of variables associated with each observation. The dimension of the data, is the number of variables that are measured on each observation. High-dimensional datasets present many mathematical challenges as well as some opportunities, and are bound to give rise to new theoretical developments. One of the problems with high-dimensional datasets is that, in many cases, not all the measured variables are ''important'' for understanding the underlying phenomena of interest. While certain computationally expensive novel methods can construct predictive models with high accuracy from high-dimensional data, it is still of interest in many applications to reduce the dimension of the original data prior to any modeling of …
Date: May 9, 2002
Creator: Fodor, I K
Object Type: Report
System: The UNT Digital Library
Managing For Results: Enhancing Agency Use of Performance Information for Management Decision Making (open access)

Managing For Results: Enhancing Agency Use of Performance Information for Management Decision Making

A letter report issued by the Government Accountability Office with an abstract that begins "The Government Performance and Results Act (GPRA) of 1993 has laid a foundation of results-oriented agency planning, measurement, and reporting in the federal government. Performance planning and measurement have slowly, yet increasingly, become a part of agencies' cultures. For planning and performance measurement to be effective, federal managers need to use performance information to identify performance problems and look for solutions, develop approaches that improve results, and make other important management decisions. According to GAO's periodic surveys, federal managers reported having more performance measures in 2003 than in 1997. However, the data also showed that managers' reported use of performance information for program management activities has remained essentially unchanged from 1997 levels. GAO was asked to identify (1) how federal agencies can use performance information to make management decisions and (2) practices that can enhance or facilitate the use of performance information to make management decisions."
Date: September 9, 2005
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Student Knowledge Creation for Assessments in Higher Education (open access)

Student Knowledge Creation for Assessments in Higher Education

This paper focuses on the use of an information tool by novice and experienced university students to gain and create knowledge for their assessment tasks.
Date: November 9, 2018
Creator: Qayyum, M. Asim & Smith, David
Object Type: Paper
System: The UNT Digital Library
Energy and Environmental Issues in Eastern Europe and Central Asia: An Annotated Guide to Information Resources (open access)

Energy and Environmental Issues in Eastern Europe and Central Asia: An Annotated Guide to Information Resources

Energy and environmental problems undermine the potential for sustained economic development and contribute to political and economic instability in the strategically important region surrounding the Caspian and Black Seas. Many organizations supporting efforts to resolve problems in this region have found that consensus building--a prerequisite for action--is a difficult process. Reaching agreement on priorities for investment, technical collaboration, and policy incentives depends upon informed decision-making by governments and local stakeholders. And while vast quantities of data and numerous analyses and reports are more accessible than ever, wading through the many potential sources in search of timely and relevant data is a formidable task. To facilitate more successful data searches and retrieval, this document provides annotated references to over 200 specific information sources, and over twenty primary search engines and data retrieval services, that provide relevant and timely information related to the environment, energy, and economic development around the Caspian and Black Seas. This document is an advance copy of the content that Oak Ridge National Laboratory (ORNL) plans to transfer to the web in HTML format to facilitate interactive search and retrieval of information using standard web-browser software.
Date: October 9, 2000
Creator: Gant, K.S.
Object Type: Report
System: The UNT Digital Library
The Knowing Model: Encouraging Behavior Change in Organizations Through Awareness, Integration, and Knowing (open access)

The Knowing Model: Encouraging Behavior Change in Organizations Through Awareness, Integration, and Knowing

This paper outlines a context-based model to increase leadership's effectiveness in knowledge management.
Date: November 9, 2018
Creator: Freeburg, Darin
Object Type: Paper
System: The UNT Digital Library
User`s guide and physics manual for the SCATPlus circuit code (open access)

User`s guide and physics manual for the SCATPlus circuit code

ScatPlus is a user friendly circuit code and an expandable library of circuit models for electrical components and devices; it can be used to predict the transient behavior in electric circuits. The heart of ScatPlus is the transient circuit solver SCAT written in 1986 by R.F. Gribble. This manual includes system requirements, physics manual, ScatPlus component library, tutorial, ScatPlus screen, menus and toolbar, ScatPlus tool bar, procedures.
Date: May 9, 1994
Creator: Yapuncich, M. L.; Deninger, W. J. & Gribble, R. F.
Object Type: Report
System: The UNT Digital Library
Tailored Porous Materials (open access)

Tailored Porous Materials

Tailoring of porous materials involves not only chemical synthetic techniques for tailoring microscopic properties such as pore size, pore shape, pore connectivity, and pore surface reactivity, but also materials processing techniques for tailoring the meso- and the macroscopic properties of bulk materials in the form of fibers, thin films and monoliths. These issues are addressed in the context of five specific classes of porous materials: oxide molecular sieves, porous coordination solids, porous carbons, sol-gel derived oxides, and porous heteropolyanion salts. Reviews of these specific areas are preceded by a presentation of background material and review of current theoretical approaches to adsorption phenomena. A concluding section outlines current research needs and opportunities.
Date: November 9, 1999
Creator: Barton, Thomas J.; Bull, Lucy M.; Klemperer, Walter G.; Loy, Douglas A.; McEnaney, Brian; Misono, Makoto et al.
Object Type: Article
System: The UNT Digital Library
Cray X1 Evaluation Status Report (open access)

Cray X1 Evaluation Status Report

On August 15, 2002 the Department of Energy (DOE) selected the Center for Computational Sciences (CCS) at Oak Ridge National Laboratory (ORNL) to deploy a new scalable vector supercomputer architecture for solving important scientific problems in climate, fusion, biology, nanoscale materials and astrophysics. ''This program is one of the first steps in an initiative designed to provide U.S. scientists with the computational power that is essential to 21st century scientific leadership,'' said Dr. Raymond L. Orbach, director of the department's Office of Science The Cray X1 is an attempt to incorporate the best aspects of previous Cray vector systems and massively-parallel-processing (MPP) systems into one design. Like the Cray T90, the X1 has high memory bandwidth, which is key to realizing a high percentage of theoretical peak performance. Like the Cray T3E, the X1 has a high-bandwidth, low-latency, scalable interconnect, and scalable system software. And, like the Cray SV1, the X1 leverages commodity off-the-shelf (CMOS) technology and incorporates non-traditional vector concepts, like vector caches and multi-streaming processors. In FY03, CCS procured a 256-processor Cray X1 to evaluate the processors, memory subsystem, scalability of the architecture, software environment and to predict the expected sustained performance on key DOE applications codes. The …
Date: February 9, 2004
Creator: Vetter, J.S.
Object Type: Report
System: The UNT Digital Library