Digital Commons Network^™

Influentials, Novelty, And Social Contagion: The Viral Power Of Average Friends, Close Communities, And Old News, Nicholas Harrigan, Palakorn Achananuparp, Ee Peng Lim

Research Collection School Of Computing and Information Systems

What is the effect of (1) popular individuals, and (2) community structures on the retransmission of socially contagious behavior? We examine a community of Twitter users over a five month period, operationalizing social contagion as ‘retweeting’, and social structure as the count of subgraphs (small patterns of ties and nodes) between users in the follower/following network. We find that popular individuals act as ‘inefficient hubs’ for social contagion: they have limited attention, are overloaded with inputs, and therefore display limited responsiveness to viral messages. We argue this contradicts the ‘law of the few’ and ‘influentials hypothesis’. We find that community …

Entity Synonyms For Structured Web Search, Tao Cheng, Hady W. Lauw, Stelios Paparizos

Research Collection School Of Computing and Information Systems

Nowadays, there are many queries issued to search engines targeting at finding values from structured data (e.g., movie showtime of a specific location). In such scenarios, there is often a mismatch between the values of structured data (how content creators describe entities) and the web queries (how different users try to retrieve them). Therefore, recognizing the alternative ways people use to reference an entity, is crucial for structured web search. In this paper, we study the problem of automatic generation of entity synonyms over structured data toward closing the gap between users and structured data. We propose an offline, data-driven …

Information Retrieval Based Nearest Neighbor Classification For Fine-Grained Bug Severity Prediction, Yuan Tian, David Lo, Chengnian Sun

Research Collection School Of Computing and Information Systems

Bugs are prevalent in software systems. Some bugs are critical and need to be fixed right away, whereas others are minor and their fixes could be postponed until resources are available. In this work, we propose a new approach leveraging information retrieval, in particular BM25-based document similarity function, to automatically predict the severity of bug reports. Our approach automatically analyzes bug reports reported in the past along with their assigned severity labels, and recommends severity labels to newly reported bug reports. Duplicate bug reports are utilized to determine what bug report features, be it textual, ordinal, or categorical, are important. …

Handling Interpretation And Representation In Multilingual Research: A Meta-Study Of Pragmatic Issues Resulting From The Use Of Multiple Languages In A Qualitative Information Systems Research Work, Ilse Baumgartner

Research Collection School Of Computing and Information Systems

Although the number of multilingual qualitative research studies appears to be growing, investigations concerned with methodological issues arising from the use of several languages within a single research are still very scarce. Most of these seem to deal exclusively with issues related to the use of interpreters and translators in qualitative research (e.g., Temple & Edwards, 2002; Temple, Edwards & Alexander, 2006; Edwards, 1998; Temple & Young 2004). Methodological investigations going beyond pure translation dilemmas in qualitative research are, however, almost non-existent. The reason for this seems to be simple: the situation where the researcher possesses mother-tongue fluency in all …

Automatic Defect Categorization, Ferdian Thung, David Lo, Lingxiao Jiang

Research Collection School Of Computing and Information Systems

Defects are prevalent in software systems. In order to understand defects better, industry practitioners often categorize bugs into various types. One common kind of categorization is the IBM’s Orthogonal Defect Classification (ODC). ODC proposes various orthogonal classification of defects based on much information about the defects, such as the symptoms and semantics of the defects, the root cause analysis of the defects, and many more. With these category labels, developers can better perform post-mortem analysis to find out what the common characteristics of the defects that plague a particular software project are. Albeit the benefits of having these categories, for …

Intercalibration Studies Of 210Po And 210Pb In Dissolved And Particulate Seawater Samples, Thomas Church, Sylvain Rigaud, Mark Baskaran, Anupam Kumar, Jana Friedrich, Pere Masque, Viena Puigcorbé, Guebuem Kim, Olivier Radakovitch, Gi Hong, Hui Choi, Gillian Stewart

Environmental Science and Geology Faculty Research Publications

Documented is an intercalibration (IC) exercise for both ²¹⁰Po and ²¹⁰Pb in seawater aliquots distributed between up to eight international laboratories that followed individual protocols. Dissolved and particulate samples were provided by GEOTRACES during two IC cruises at baseline stations in the North Atlantic and North Pacific oceans. Included were surface and/or deep dissolved and particulate samples at each site, plus complete profiles analyzed by the laboratory of the lead author. An unspecified solid phase standard was also distributed with ²¹⁰Po and ²¹⁰Pb in secular equilibrium to confirm spike calibrations. The ²¹⁰Po activities reported n …

Department Of Mathematical Sciences Newsletter, Fall 2012, University Of Montana--Missoula. Department Of Mathematical Sciences

Newsletters from the Department of Mathematical Sciences at UM

Mathematics Students Claim Five of Eight Noyce Scholarships / Bonnie Spence -- Remembering Professor Myers -- Math Professor Publishes New Text on Matroid Theory / Mary Riegel -- Notes From the Chair / Leonid Kalachev -- Former Student Publishes MAA Book / Mark Kayll -- Solution to the Problem in the Bill Derrick Article / Greg St. George -- International Exchange in Ethiopia / Solomon Harrar -- Alumni Reply Form -- Mark Kayll Wins Allendoerfer Award

Statistics Discipline Assessment Report 2012, Statistics Discipline

Assessment of Student Learning Reports

No abstract provided.

Ceg 7900-01: Special Topics: Computer And Network Security, Junjie Zhang

Computer Science & Engineering Syllabi

This course will introduce active research topics in computer and network security, and will focus on discussing both sophisticated cyber-attacks and the defense mechanisms. The course will cover topics including intrusion detection, malware analysis, worm detection, botnet detection, spam, phishing, DNS security, web security, cellular network security, and privacy. This class is targeted at PhD and MS students who consider conducting research in computer and network security, and students who are interested in real-world security problems.

Ceg 4500/6500-01: Computer Graphics, Thomas Wischgoll

Computer Science & Engineering Syllabi

By the end of this quarter, you will have learnt techniques for constructing 2-D and 3·D objects as well as manipulating and rendering the objects using OpenGL.
The outline of the course is as follows:
•Introduction
•Geometric primitives
•Attributes of geometric primitives
•Antialiasing techniques
•Homogeneous coordinate system
•2-0 and 3-D viewing transformations
•Structures and hierarchical modeling
•Input devices and interactive techniques
•Visible surface detection methods
•Three-Dimensional Object Representations (chapter 8)
•Visible-Surface Detection (chapter 9)
•Illumination Models and Surface-Rendering Methods (chapter 10)
•Interactive Input Methods and Graphics User Interfaces (chapter 11)
•Color Models and Color Applications (chapter 12)
•Advanced Rendering and …

On Lattices Of Varieties Of Restriction Semigroups, Peter R. Jones

Mathematics, Statistics and Computer Science Faculty Research and Publications

The left restriction semigroups have arisen in a number of contexts, one being as the abstract characterization of semigroups of partial maps, another as the ‘weakly left E-ample’ semigroups of the ‘York school’, and, more recently as a variety of unary semigroups defined by a set of simple identities. We initiate a study of the lattice of varieties of such semigroups and, in parallel, of their two-sided versions, the restriction semigroups. Although at the very bottom of the respective lattices the behaviour is akin to that of varieties of inverse semigroups, more interesting features are soon found in the …

Area Query Processing Based On Gray Code In Wireless Sensor Networks, Chunyu Ai, Yueming Duan, Mingyuan Yan, Jing He

Faculty Articles

Area query processing is significant for various applications of wireless sensor networks since it can request information of particular areas in the monitored environment. Existing query processing techniques cannot solve area queries. Intuitively centralized processing on Base Station can accomplish area queries via collecting information from all sensor nodes. However, this method is not suitable for wireless sensor networks with limited energy since a large amount of energy is wasted for reporting useless data. This motivates us to propose an energy-efficient in-network area query processing scheme. In our scheme, the monitored area is partitioned into grids, and a unique gray …

Well Conditioned Boundary Integral Equations For Two-Dimensional Sound-Hard Scattering Problems In Domains With Corners, Akash Anand, Jeffrey S. Ovall, Catalin Turc

Mathematics and Statistics Faculty Publications and Presentations

We present several well-posed, well-conditioned direct and indirect integral equation formulations for the solution of two-dimensional acoustic scattering problems with Neumann boundary conditions in domains with corners. We focus mainly on Direct Regularized Combined Field Integral Equation (DCFIE-R) formulations whose name reflects that (1) they consist of combinations of direct boundary integral equations of the second-kind and first-kind integral equations which are preconditioned on the left by coercive boundary single-layer operators, and (2) their unknowns are physical quantities, i.e., the total field on the boundary of the scatterer. The DCFIE-R equations are shown to be uniquely solvable in appropriate function …

October 2012, University Archives And Special Collections Department

This Month in UT Tyler History

No abstract provided.

Computing Perception From Sensor Data, Payam Barnaghi, Frieder Ganz, Cory Andrew Henson, Amit P. Sheth

Kno.e.sis Publications

This paper describes a framework for perception creation from sensor data. We propose using data abstraction techniques, in particular Symbolic Aggregate Approximation (SAX), to analyse and create patterns from sensor data. The created patterns are then linked to semantic descriptions that define thematic, spatial and temporal features, providing highly granular abstract representation of the raw sensor data. This helps to reduce the size of the data that needs to be communicated from the sensor nodes to the gateways or highlevel processing components. We then discuss a method that uses abstract patterns created by SAX method and occurrences of different observations …

Privacy Preserving Boosting In The Cloud With Secure Half-Space Queries, Shumin Guo, Keke Chen

Kno.e.sis Publications

This paper presents a preliminary study on the PerturBoost approach that aims to provide efficient and secure classifier learning in the cloud with both data and model privacy preserved.

Uv-B Affects Photosynthesis, Ros Production And Motility Of The Freshwater Flagellate, Euglena Agilis Carter, S Kottuparambil, W Shin, Mt Brown, T Han

School of Biological and Marine Sciences

The effects of ultraviolet B (UV-B; 295-320 nm) radiation on certain vital physiological (photosynthesis), biochemical (production of reactive oxygen species - ROS) and behavioral (motility and orientation) characteristics were investigated in the unicellular photoautotroph, Euglena agilis Carter. The photosynthetic performance of E. agilis was recorded after exposure of between 15 and 60 min followed by a period of recovery lasting 6-24h under dim light (5-10 μmol photons m(-2) s(-1)). The maximum quantum yield of PS II (F(v)/F(m)) was reduced to 65% and 14% of initial values immediately following 15 and 30 min UV-B exposure, but recovered to 100 and 86% …

Electric Vehicle Charging And Routing Management Via Multi-Infrastructure Data Fusion, Christopher Decker

Theses

The introduction of Electric Vehicles (EVs) has placed a strain on the aged and already overworked electrical grid. With each EV requiring the same amount of power as 3 to 140 single family homes, depending on how fast the charge occurs, measures need to be taken in order to protect the electrical grid from serious damage. The electric grid renovations proposed by the U.S. department of energy, commonly referred to as the smart grid, could help accommodate an even greater EV penetration. The introduction of the smart grid and other cutting-edge technologies create the potential for applications which provide new …

Dialogue: October 2012, Staff And Writers Of Dialogue

Dialogue

Prose

06 Geneva Langeland, Marks; 11 Joella Ranaivoson, Tea Time; 16 Kesley Zasadil, Grace; 33 Leah Sienkowski, The Duck Story; 43 Maxwell Howard, Tumor Like Dostoyevsky; 49 Libby Stille, An Incident in Georgia; 53 Katerina Parsons, After Many Years

Poetry

05 Leah Sienkowski, Lake 16; 09 Trenton Heille, Choke Cherries; 10 Alex Westenbroek, Melpomene; 15 Nicholas James Alcock, Noir; 42 Trenton Heille, Traverse; 48 Sarah Bonthuis, Starry Night; 52 Chelsea Tanis, Strictly Tectonic; 52 Tyler Slamkowski, Moriah; 56 Linnea McLaughlin, Dropped Call; 57 Mary Snook, Coat …

Current Status And Long-Term Trends In Water Quality And Living Resources In The Virginia Tributaries And Chesapeake Bay Mainstem From 1985 Through 2011, Daniel M. Dauer, Harold G. Marshall, John R. Donat, Michael F. Lane, Suzanne C. Doughten, Cindy Johnson

Status and Trends for Virginia Chesapeake Bay

The period prior to the implementation of the Chesapeake Bay Monitoring Program was characterized by a marked decline in the water quality of the Chesapeake Bay. The disappearance of submerged aquatic vegetation in certain regions of the Bay, declines in the abundance of some commercially and recreationally important species, increases in the incidence of low dissolved oxygen events, changes in the Bay's food web, and other ecological problems have been related to the deteriorating water quality (e.g. USEPA, 1982,1983;Officer et al.,1984; Orth and Moore, 1984). The results of concentrated research efforts in the late 1970s and early 1980s stimulated the …

Professional Learning Communities’ Impact On Science Teacher Classroom Practice In A Midwestern Urban School District, Dan Carpenter

College of Education and Human Sciences: Dissertations, Theses, and Student Research

The purpose of this reputation-based, multiple-site case study was to explore professional learning communities’ impact on teacher classroom practice. The goal of this research was to describe the administrator and teachers’ perceptions with respect to professional learning communities as it related to teacher practice in their school. Educators and administrators were asked what types of practices teachers took from collaborative professional learning communities and tried in their classrooms.

This reputation-based, multiple-site case study was important to Nebraska educators because many school districts had implemented professional learning communities in a variety of forms in the schools. There had been little, if …

Impacts Of Climate Change On The Surface Water Balance Of The Central United States, 1984–2007, Bo Dong

School of Natural Resources: Dissertations, Theses, and Student Research

The climate system and the hydrologic cycle are strongly connected with each other. Understanding the interactions between these two systems is important, since variations in climate can trigger extensive changes in the hydrologic cycle, with significant impacts on agriculture, ecosystems, and society. Observations over the central U.S. in recent decades show numerous changes in climatic variables. This includes decreases in cloud cover and wind speed, increases in air temperature, and seasonal shifts in precipitation rate and rain/snow fraction. To assess the impacts of these variations in climate on the regional water cycle, a terrestrial ecosystem/land surface hydrologic model (Agro-IBIS) is …

The Great Recession And The Rhetorical Canons Of Law And Economics, Michael D. Murray

Law Faculty Scholarly Articles

The Great Recession of 2008 and onward has drawn attention to the American economic and financial system and has cast a critical spotlight on the theories, policies, and assumptions of the modern, neoclassical school of law and economics-often labeled the "Chicago School"-because this school of legal economic thought has had great influence on the American economy and financial system. The Chicago School's positions on deregulation and the limitation or elimination of oversight and government restraints on stock markets, derivative markets, and other financial practices are the result of decades of neoclassical economic assumptions regarding the efficiency of unregulated markets, the …

The Quantum Effective Action, Wave Functions And Yang-Mills(2+1), V. Parameswaran Nair

Publications and Research

No abstract provided.

Modifying Moral Dilemma Judgments: How The Priming Of Moral Rules Modifies Responses To Moral Dilemmas, Warren Brandan Scott

Seton Hall University Dissertations and Theses (ETDs)

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Reverse Sexology: Turn-Of-The-Century Discourses Of Sexuality And The Limits Of Identity In David Leavitt’S The Indian Clerk, Helena Gurfinkel

Reconstruction: Studies in Contemporary Culture

David Leavitt’s most recent novel, The Indian Clerk (2007) runs afoul of the standard position in relation to the politics of sexual identity among modern Anglo-American writers. While working in the same tradition as Christopher Isherwood or Edmund White, for whom being a gay writer is a politically necessary self-identification, Leavitt, in his latest work of fiction, fights against such a designation. The Indian Clerk explores the potential limitations of sexual identity, which originated in the medical and scientific discourses of the late-nineteenth and early-twentieth centuries. [1] According to Chris White, these discourses “produce[d] science as the means of truly …

Confronting The Crisis In Scientific Publishing: Latency, Licensing And Access, Jorge L. Contreras

Joint PIJIP/TLS Research Paper Series

The serials crisis in scientific publishing can be traced to the long duration of copyright protection and the assignment of copyright by researchers to publishers. Over-protection of scientific literature has enabled commercial publishers to increase subscription rates to a point at which access to scientific information has been curtailed with negative social welfare consequences. The uniformity costs imposed by such over-protection can be addressed by tailoring intellectual property rights, either through legal change or private ordering.

Current open access channels of distribution offer alternative approaches to scientific publishing, but neither the Green OA self-archiving nor the Gold OA author-pays models …

Cox Inhibitors Indomethacin And Sulindac Derivatives As Antiproliferative Agents: Synthesis, Biological Evaluation, And Mechanism Investigation, Snigdha Chennamaneni, Bo Zhong, Rati Lama, Bin Su

Chemistry Faculty Publications

Cyclooxygenase (COX) inhibitors Indomethacin and its structural analogs Sulindac exhibit cell growth inhibition and apoptosis inducing activities in various cancer cell lines via COX independent mechanisms. In this study, the molecular structures of Indomethacin and Sulindac were used as starting scaffolds to design novel analogs and their effects on the proliferation of human cancer cells were evaluated. Compared to Indomethacin and Sulindac inhibiting cancer cell proliferation with IC50s of more than 1 mM, the derivatives displayed significantly increased activities. Especially, one of the Indomethacin analogs inhibited the growth of a series of cancer cell lines with IC50s around 0.5 μM–3 …

Cs 1010-01: Introduction To Computers And Office Productivity Software, Terri Bauer

Computer Science & Engineering Syllabi

Focus on learning MS Office software applications including intermediate word processing, spreadsheets, database and presentation graphics using a case study approach where critical thinking and problem solving skills are required. Computer concepts are integrated throughout the course to provide an understanding of the basics of computing, the latest technological advances and how they are used in industry. Ethics and issues encountered in business are discussed to challenge students on societal impact of technology.

Cs 1150-01: Introduction To Computer Science, Karen Meyer

Computer Science & Engineering Syllabi

The Introduction to Computer Science course will expose students to the scientific method as implemented in computer science. The course will show students how the scientific method as implemented in computer science can be used as a problem-solving tool. The course requires students to apply and extend the concepts in a laboratory setting. The concepts will include the study of and methodology of algorithm discovery, design, application, and fundamentals of networks. Lecture and Lab