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Tracking Down the Problem: the development of a web-scale discovery troubleshooting workflow

Description: Presentation for the 2017 North American Serials Interest Group. This presentation discusses the implementation of an error reporting link within the Summon web-scale discovery service, and the resultant troubleshooting workflows, types of errors encountered, and causes of frequently encountered errors.
Date: June 11, 2017
Creator: Enoch, Todd
Partner: UNT Libraries

Knowledge Discovery Through Text Mining in the United States Data Science

Description: Presented at the 2017 International Conference on Knowledge Management. This presentation examines uses knowledge discovery and text mining to identify patterns and trends in the data science discipline by examining core course titles of the Data Science curriculum offered in the United States.
Date: October 25, 2017
Creator: Khan, Hammad
Partner: UNT Libraries

Metadata: A Networked Information Strategy to Improve Access to and Management of Government Information

Description: This document is part of a Government Information Quarterly Special Issue. The author serves as the editor of this issue focusing on the use of metadata as a strategy to improve access to and management of electronic government information. Contributions by writers address federal and state metadata activities and issues.
Date: 2001
Creator: Moen, William E.
Partner: UNT College of Information

The World on Mercator's Projection, Western Part

Description: Hand-drawn color map of the western part of the world as known in 1812. Shows major rivers, explorers' routes, place names and locations of some population groups. Relief is marked by hachures.
Date: 1812
Creator: Hebert, L. & Pinkerton, John, 1758-1826.
Partner: UNT Libraries Rare Book and Texana Collections

The Ithaka S+R US Faculty Survey 2012

Description: The Ithaka S+R US Faculty Survey has focused since its inception on capturing an accurate picture of faculty members' practices, attitudes, and needs. In the fifth triennial cycle, fielded in fall 2012, the survey focused on research and teaching practices broadly, as well as the dissemination, collecting, discovery, and access of research and teaching materials. Findings from this cycle of the Ithaka S+R US Faculty Survey will provide colleges and universities, libraries, learned societies, and academic publishers with insight into the evolving attitudes and practices of faculty members in the context of substantial environmental change for higher education. The development of the 2012 questionnaire was guided by an advisory committee of librarians, publishers, policy makers, and a scholarly society executive. The overall project was supported by some 20 colleges and universities, learned societies, and publishers / vendors.
Date: April 8, 2013
Creator: Housewright, Ross; Schonfeld, Roger C. & Wulfson, Kate
Partner: UNT Libraries

The UNT Libraries Website Redesign 2011-2012: Project Plan

Description: This report documents the project plan for the University of North Texas (UNT) Libraries' website redesign. This report discusses why the redesign is necessary the scope of the work to be excluded, stakeholders, project phases, deliverables, and major milestones, assumptions, constraints, and risks.
Date: November 3, 2011
Creator: Weng, Neena; Hicks, William & Thomale, Jason
Partner: UNT Libraries

The Effectiveness of a Guided Discovery Method of Teaching in a College Mathematics Course for Non-Mathematics and Non-Science Majors

Description: The purpose of this study was to ascertain the value, as determined by student achievement, of using a discovery method of teaching mathematics in a college freshman mathematics course for non-mathematics and non-science majors.
Date: January 1969
Creator: Reimer, Dennis D., 1940-
Partner: UNT Libraries

Understanding User Discovery of ETD: Metadata or Full-Text, How Did They Get There?

Description: Presentation for the 2015 US Electronic Thesis and Dissertation Association (USETDA) Annual Conference. This presentation discusses understanding user discovery of electronic theses and dissertations (ETDs) and whether uses make use of metadata records when searching or full text searching.
Date: September 30, 2015
Creator: Alemneh, Daniel Gelaw
Partner: UNT Libraries

[Maps and Notes to Accompany an Expedition Narrative]

Description: Two maps that accompany a narrative about a U.S. expedition in 1849. The first sketch map is of the area around the Dead Sea (Scale ca. 1:126,720). The second sketch map details the area around the River Jordan (Scale ca. 1:63,360). Each map includes some landmarks of the area and depths including relief shown by hachures. An additional page (front and back) has handwritten notes containing the expense sheet from the expedition.
Date: 1849
Creator: Lynch, William Francis, 1801-1865.
Partner: UNT Libraries Rare Book and Texana Collections

Information Gain Based Dimensionality Selection for Classifying Text Documents

Description: Selecting the optimal dimensions for various knowledge extraction applications is an essential component of data mining. Dimensionality selection techniques are utilized in classification applications to increase the classification accuracy and reduce the computational complexity. In text classification, where the dimensionality of the dataset is extremely high, dimensionality selection is even more important. This paper presents a novel, genetic algorithm based methodology, for dimensionality selection in text mining applications that utilizes information gain. The presented methodology uses information gain of each dimension to change the mutation probability of chromosomes dynamically. Since the information gain is calculated a priori, the computational complexity is not affected. The presented method was tested on a specific text classification problem and compared with conventional genetic algorithm based dimensionality selection. The results show an improvement of 3% in the true positives and 1.6% in the true negatives over conventional dimensionality selection methods.
Date: June 1, 2013
Creator: Wijayasekara, Dumidu; Manic, Milos & McQueen, Miles
Partner: UNT Libraries Government Documents Department

Students' Criteria for Course Selection: Towards a Metadata Standard for Distributed Higher Education

Description: By 2007, one half of higher education students are expected to enroll in distributed learning courses. Higher education institutions need to attract students searching the Internet for courses and need to provide students with enough information to select courses. Internet resource discovery tools are readily available, however, users have difficulty selecting relevant resources. In part this is due to the lack of a standard for representation of Internet resources. An emerging solution is metadata. In the educational domain, the IEEE Learning Technology Standards Committee (LTSC) has specified a Learning Object Metadata (LOM) standard. This exploratory study (a) determined criteria students think are important for selecting higher education courses, (b) discovered relationships between these criteria and students' demographic characteristics, educational status, and Internet experience, and (c) evaluated these criteria vis-à-vis the IEEE LTSC LOM standard. Web-based questionnaires (N=209) measured (a) the criteria students think are important in the selection of higher education courses and (b) three factors that might influence students' selections. Respondents were principally female (66%), employed full time (57%), and located in the U.S. (89%). The chi square goodness-of-fit test determined 40 criteria students think are important and exploratory factor analysis determined five common factors among the top 21 criteria, three evaluative factors and two descriptive. Results indicated evaluation criteria are very important in course selection. Spearman correlation coefficients and chi-square tests of independence determined the relationships between the importance of selection criteria and demographic characteristics, educational status, and Internet experience. Four profiles emerged representing groups of students with unique concerns. Side by side analysis determined if the IEEE LTSC LOM standard included the criteria of importance to students. The IEEE LOM by itself is not enough to meet students course selection needs. Recommendations include development of a metadata standard for course evaluation and accommodation of group differences in ...
Date: August 2000
Creator: Murray, Kathleen R.
Partner: UNT Libraries

Mapping the Interoperability Landscape for Networked Information Retrieval

Description: This paper discusses interoperability of networked information. Interoperability is a fundamental challenge for networked information discovery and retrieval. Often treated monolithically in the literature, interoperability is multifaceted and can be analyzed into different types and levels. This paper discusses an approach to map the interoperability landscape for networked information retrieval as part of an interoperability assessment research project.
Date: June 2001
Creator: Moen, William E.
Partner: UNT College of Information

Art Museum Resources and Teacher Use.

Description: I proposed that both Bruner's (1963) idea of the spiral curriculum and Yenawine's (1992) theories of teaching for visual literacy in the museum set the stage for significant learning for students when used together. If school teachers lay a foundation of knowledge about a museum object, especially through museum resources, then the student may transform and apply this 'prior knowledge' (explicit memories from the classroom) while on the museum visit tour. When docents utilize Yenawine's (1992) methods toward the goal of visual literacy, the semantic knowledge of the classroom is then fused with museum learning, building stronger memories and facilitating deeper understanding as students learn about museum objects. This research explored the correlation of these two theories in a qualitative manner based on observations of actual museum visit preparation in classrooms in Casper, Wyoming, and how it related to a museum tour at the Nicolaysen Art Museum and Discovery Center. The research revealed that conditions do exist within the community that would facilitate Bruner's (1963) idea of a learning spiral, yet not in the manner envisioned. The observed conditions toward a spiral was accomplished through the participant teachers relating the museum exhibit to their operational curriculum in a variety of curricular areas, such as language arts and science, when docents related the tour to classroom learning, and not through museum resources or Yenawine's (1992) methods toward increasing visual literacy, as was previously considered.
Date: May 2006
Creator: Eggemeyer, Valerie
Partner: UNT Libraries

Discovery of Resources and Conflict in the Interstate System, 1816-2001

Description: This study tests a theory detailing the increased likelihood of conflict following an initial resource discovery in the discovering nation and its region. A survey of prior literature shows a multitude of prior research concerning resources and nations' willingness to initiate conflict over those resources, but this prior research lacks any study concerning the effects of the discovery of resources on interstate conflict. The theory discusses the increased likelihood of conflict in the discovering nation as both target and initiator. It further looks at the increased chance of conflict in the discoverer's region due to security dilemmas and proxy wars. The results show strong support for the theory, suggesting nations making new resource discoveries must take extra care to avoid conflict.
Date: May 2010
Creator: Clark, Bradley
Partner: UNT Libraries

Interactive Analysis of Large Network Data Collections UsingQuery-Driven Visualization

Description: Realizing operational analytics solutions where large and complex data must be analyzed in a time-critical fashion entails integrating many different types of technology. Considering the extreme scale of contemporary datasets, one significant challenge is to reduce the duty cycle in the analytics discourse process. This paper focuses on an interdisciplinary combination of scientific data management and visualization/analysis technologies targeted at reducing the duty cyclein hypothesis testing and knowledge discovery. We present an application of such a combination in the problem domain of network traffic data analysis. Our performance experiment results, including both serial and parallel scalability tests, show that the combination can dramatically decrease the analytics duty cycle for this particular application. The combination is effectively applied to the analysis of network traffic data to detect slow and distributed scans, which is a difficult-to-detect form of cyber attack. Our approach is sufficiently general to be applied to a diverse set of data understanding problems as well as used in conjunction with a diverse set of analysis and visualization tools.
Date: December 1, 2005
Creator: Bethel, E. Wes; Campbell, Scott; Dart, Eli; Lee, Jason; Smith,Steven A.; Stockinger, Kurt et al.
Partner: UNT Libraries Government Documents Department

Design and Implementation of a Facility for Discovering New Scintillator Materials

Description: We describe the design and operation of a high-throughput facility for synthesizing thousands of inorganic crystalline samples per year and evaluating them as potential scintillation detector materials. This facility includes a robotic dispenser, arrays of automated furnaces, a dual-beam X-ray generator for diffractometery and luminescence spectroscopy, a pulsed X-ray generator for time response measurements, computer-controlled sample changers, an optical spectrometer, and a network-accessible database management system that captures all synthesis and measurement data.
Date: April 25, 2008
Creator: Derenzo, Stephen; Derenzo, Stephen E; Boswell, Martin S.; Bourret-Courchesne, Edith; Boutchko, Rostyslav; Budinger, Thomas F. et al.
Partner: UNT Libraries Government Documents Department

General Critical Properties of the Dynamics of Scientific Discovery

Description: Scientific fields are difficult to define and compare, yet there is a general sense that they undergo similar stages of development. From this point of view it becomes important to determine if these superficial similarities can be translated into a general framework that would quantify the general advent and subsequent dynamics of scientific ideas. Such a framework would have important practical applications of allowing us to compare fields that superficially may appear different, in terms of their subject matter, research techniques, typical collaboration size, etc. Particularh' important in a field's history is the moment at which conceptual and technical unification allows widespread exchange of ideas and collaboration, at which point networks of collaboration show the analog of a percolation phenomenon, developing a giant connected component containing most authors. Here we investigate the generality of this topological transition in the collaboration structure of scientific fields as they grow and become denser. We develop a general theoretical framework in which each scientific field is an instantiation of the same large-scale topological critical phenomenon. We consider whether the evidence from a variety of specific fields is consistent with this picture, and estimate critical exponents associated with the transition. We then discuss the generality of the phenomenon and to what extent we may expect other scientific fields — including very large ones — to follow the same dynamics.
Date: May 31, 2011
Creator: Bettencourt, L. M. A. (LANL) & Kaiser, D. I. (MIT)
Partner: UNT Libraries Government Documents Department

Modern Scientific Visualization is more than Just Pretty Pictures

Description: While the primary product of scientific visualization is images and movies, its primary objective is really scientific insight. Too often, the focus of visualization research is on the product, not the mission. This paper presents two case studies, both that appear in previous publications, that focus on using visualization technology to produce insight. The first applies"Query-Driven Visualization" concepts to laser wakefield simulation data to help identify and analyze the process of beam formation. The second uses topological analysis to provide a quantitative basis for (i) understanding the mixing process in hydrodynamic simulations, and (ii) performing comparative analysis of data from two different types of simulations that model hydrodynamic instability.
Date: December 5, 2008
Creator: Bethel, E Wes; Rubel, Oliver; Wu, Kesheng; Weber, Gunther; Pascucci, Valerio; Childs, Hank et al.
Partner: UNT Libraries Government Documents Department

Mining Bug Databases for Unidentified Software Vulnerabilities

Description: Identifying software vulnerabilities is becoming more important as critical and sensitive systems increasingly rely on complex software systems. It has been suggested in previous work that some bugs are only identified as vulnerabilities long after the bug has been made public. These vulnerabilities are known as hidden impact vulnerabilities. This paper discusses the feasibility and necessity to mine common publicly available bug databases for vulnerabilities that are yet to be identified. We present bug database analysis of two well known and frequently used software packages, namely Linux kernel and MySQL. It is shown that for both Linux and MySQL, a significant portion of vulnerabilities that were discovered for the time period from January 2006 to April 2011 were hidden impact vulnerabilities. It is also shown that the percentage of hidden impact vulnerabilities has increased in the last two years, for both software packages. We then propose an improved hidden impact vulnerability identification methodology based on text mining bug databases, and conclude by discussing a few potential problems faced by such a classifier.
Date: June 1, 2012
Creator: Wijayasekara, Dumidu; Manic, Milos; Wright, Jason & McQueen, Miles
Partner: UNT Libraries Government Documents Department