Digital Commons Network^™

Experience Me! The Impact Of Content Sampling Strategies On The Marketing Of Digital Entertainment Goods, Ai Phuong Hoang, Robert J. Kauffman

Research Collection School Of Computing and Information Systems

Product sampling allows consumers to try out a small portion of a product for free. Uncertainty associated with consumption of information goods makes sampling useful for digital entertainment providers. Firms offer some programming for free to attract consumers to purchase a series of programs. We explore the effectiveness of content sampling for information goods using a dataset containing more than 17 million free previews and purchase observations on households from a digital entertainment firm that offers video-on-demand (VoD). Based on theories related to product sampling and information goods, we analyze the relationship between free previews and VoD purchases for series …

Smart Ambient Sound Analysis Via Structured Statistical Modeling, Jialie Shen, Liqiang Nie, Tat Seng Chua

Research Collection School Of Computing and Information Systems

In this paper, we introduce a novel framework called SASA (Smart Ambient Sound Analyser) to support different ambient audio mining tasks (e.g., audio classification and location estimation). To gain comprehensive ambient sound modelling, SASA extracts a variety of acoustic features from different sound components (e.g., music, voice and background), and translates them into structured information. This significantly enhances quality of audio content representation. Further, distinguished from existing approaches, SASA’s multilayered architecture seamlessly integrates mixture models and aPEGASOS (adaptive PEGASOS) SVM algorithm into a unified classification framework. The approach can leverage complimentary strengths of both models. Experimental results based on three …

Top-K Dominating Queries On Incomplete Data, Xiaoye Miao, Yunjun Gao, Baihua Zheng, Gang Chen, Huiyong Cui

Research Collection School Of Computing and Information Systems

The top-k dominating (TKD) query returns the k objects that dominate the maximum number of objects in a given dataset. It combines the advantages of skyline and top-k queries, and plays an important role in many decision support applications. Incomplete data exists in a wide spectrum of real datasets, due to device failure, privacy preservation, data loss, and so on. In this paper, for the first time, we carry out a systematic study of TKD queries on incomplete data, which involves the data having some missing dimensional value(s). We formalize this problem, and propose a suite of efficient algorithms for …

Demo: Real-World Deployment Of Seat Occupancy Detectors, Nguyen Huy Hoang Nguyen, Gihan Hettiarachchi, Youngki Lee, Rajesh Krishna Balan

Research Collection School Of Computing and Information Systems

Detecting occupancy of seats in library is important for librarians to check seats’ usage, and for students to find available seats in crowded time. In our prior work [1], we presented in-lab micro benchmarks to show feasibility of capacitive sensing for seat occupancy detection. In this demo paper, we present larger scale real-world deployment of occupancy detection system and its performance.

Demo: Sensing Gamers' Emotions Using Physiological Sensors, Sinh Huynh, Rajesh Krishna Balan, Youngki Lee

Research Collection School Of Computing and Information Systems

Understanding emotions of gamers can benefit game designers in various ways. How gamers feel while they playing a game can be treated as valuable user feedback to improve the development process of that game. Sensing player emotions also enables game designers to create adaptive game that can adjust itself to provide best gaming experience based on player emotions. However, how to effectively evaluate emotions of gamers is still an open research challenge. Two common techniques to evaluate emotional state are using self-assessments such as questionnaires or interviews, and to recognize expressed emotions by analyzing videos or images of facial expression, …

Demo: Smartwatch Based Food Diary And Eating Analytics, Sougata Sen, Vigneshwaran Subbaraju, Archan Misra, Youngki Lee, Rajesh Krishna Balan

Research Collection School Of Computing and Information Systems

Monitoring an individual’s daily dietary intake can provide various insights regarding the health of the individual. Applications such as My Fitness Pal exists, which allows individuals to monitor all items that the individual consumed. However, manual monitoring can be labour intensive. To overcome this limitation, wrist worn sensor based eating habit monitoring has been studied by various researchers. These systems can detect eating gesture, but they cannot determine what is being eaten. We have built a system which can (i) detect eating gesture using the smartwatch's inertial sensors (ii) use the smartwatch's camera to capture images of food consumed at …

A Study On Singapore Haze, Bingtian Dai, Kasthuri Jayarajah, Ee-Peng Lim, Archan Misra, Shriguru Nayak

Research Collection School Of Computing and Information Systems

In 2015, Singaporean have experienced one of the worse air pollution crises in history. With datasets from a well-known photo sharing social network, we analyze how this haze affects Singaporean's daily life. We will share our preliminary results in this paper.

The Right To Education: Reconciling Teacher Tenure And The Current State Of Public Education, Michael J. Dejianne

Student Works

No abstract provided.

Data, Data, Data, Mary Whisner

Librarians' Articles

The legal profession often requires extensive data for everything from simple statistical questions to large-scale empirical research projects. Ms. Whisner discusses some of her favorite sources for finding and evaluating statistics.

Applying Frequency Hopping To Diagonal Bell Laboratories Layered Space Time Multiple Input Multiple Output Architecture, Janek J. Mroczek

Dissertations

This research introduced Frequency Hopping Spread Spectrum (FHSS) into Diagonal Bell Laboratories Layered Space-Time Multiple Input Multiple Output (D-BLAST MIMO) architecture—specifically to a wireless communication system that experiences single interference, as well as classical noise. In Frequency Hopping Spread Spectrum architecture the carrier frequency is hopped between multiple frequencies with the intention that the interference will affect only a subset of the hop frequencies. Diagonal BLAST MIMO architecture has high data rate due to the multiple antenna elements at both the transmitter and receiver. In this research the two technologies were merged to provide a robust system with high data …

Like-Doublet Injectors : The Effects Of Varying The Impingement Distance And An Analysis Of The Primary Atomization Zone, Brian A. Sweeney

Dissertations

This research explored how the jet breakup length to impingement distance ratio affects the spray characteristics of like-doublet injectors and consisted of cold-flow experiments using water at atmospheric pressure. A combination of three impingement angles, four jet velocities, and four jet breakup length to impingement distance ratios between one-half and two were tested. The breakup characteristics, sheet lengths and ligament wavelengths were determined from high-speed videos of the spray while droplet statistics were collected with a Phase Doppler Particle Analyzer. The sheet breakup characteristics were altered when the ratio transitioned from greater than one to equal to one and dramatically …

No Need To Fear Robots: Online “Bot” Use Under The Computer Fraud And Abuse Act, Peter F. Bariso Iii

Student Works

No abstract provided.

Classifying Coloring Graphs, Julie Beier, Janet Fierson, Ruth Haas, Heather M. Russell, Kara Shavo

Department of Math & Statistics Faculty Publications

Given a graph G, its k-coloring graph is the graph whose vertex set is the proper k-colorings of the vertices of G with two k-colorings adjacent if they differ at exactly one vertex. In this paper, we consider the question: Which graphs can be coloring graphs? In other words, given a graph H, do there exist G and k such that H is the k-coloring graph of G? We will answer this question for several classes of graphs and discuss important obstructions to being a coloring graph involving order, girth, and induced subgraphs.

Real Complex Functions, Stephan Ramon Garcia, Javad Mashreghi, William T. Ross

Department of Math & Statistics Faculty Publications

We survey a few classes of analytic functions on the disk that have real boundary values almost everywhere on the unit circle. We explore some of their properties, various decompositions, and some connections these functions make to operator theory.

Effects Of Variable Viscosity And Thermal Conductivity On Magnetohydrodynamic Free Convection Dusty Fluid Along A Vertical Porous Plate With Heat Generation, Gopal Chandra Hazarika, Jadav Konch

Turkish Journal of Physics

The present study investigated the effects of variable viscosity and thermal conductivity on a two-dimensional steady laminar magnetohydrodynamic (MHD) free convective boundary layer flow of a dusty fluid over a vertical porous flat plate with viscous dissipation, Joule heating, and heat generation/absorption. Governing partial differential equations of motion were reduced to a system of ordinary differential equations using similarity transformations. The resulting boundary value problem was then solved numerically using the shooting technique. Velocity, temperature, and species concentration profiles of fluid and solid particles were obtained for different flow governing parameters. The results are presented in graphs. We found that …

Student Handbook 2016-2017, Collin College

Handbooks

The Student Handbook contains the most up-to-date information on student services, resources, and opportunities designed to make your experience at Collin College more meaningful and productive. Additionally, the Student Handbook contains the Student Code of Conduct.

River Report. State Of The Lower St. Johns River Basin, Florida: Water Quality, Fisheries, Aquatic Life, Contaminants, 2016, Environmental Protection Board, City Of Jacksonville, University Of North Florida, Jacksonville University, Gerry Pinto, Nisse Goldberg, Radha Pyati, Peter Bacopoulos, Anthony Ouellette, Gretchen Bielmyer-Fraser, An-Phong Le, Ray Oldakowski

State of the River Report

No abstract provided.

Our Will In Action: 2015-16 Report Of The President, Office Of The President, Gonzaga University

Office of the President Publications

Each year, Gonzaga University's Office of the President produces an annual Report of the President. This publication that highlights just a few of the many accomplishments over the previous academic year, and is intended to convey gratitude to our Trustees and Regents, benefactors, and many supporters.

Integrating Diversity Training Into Doctoral Programs In Mathematics Education, Ruthmae Sears, Tonisha B. Lane

Transformations

There exists a need to promote diversity, equity, and inclusion in mathematics education (Wilson and Franke, 2008). Being cognizant that there are few underrepresented groups that obtain doctoral degrees in mathematical sciences or mathematics education (AMS, 2014; Reys and Dossey, 2008), focused training is needed to prepare doctoral students on diversity issues that may arise in higher education and the means by to address such issues. An advance seminar course or colloquium that would be helpful to mathematics education doctoral students who seek a career position in higher education should be entitled, “Gaining a better perspective of diversity in higher …

Empirical Likelihood And Differentiable Functionals, Zhiyuan Shen

Theses and Dissertations--Statistics

Empirical likelihood (EL) is a recently developed nonparametric method of statistical inference. It has been shown by Owen (1988,1990) and many others that empirical likelihood ratio (ELR) method can be used to produce nice confidence intervals or regions. Owen (1988) shows that -2logELR converges to a chi-square distribution with one degree of freedom subject to a linear statistical functional in terms of distribution functions. However, a generalization of Owen's result to the right censored data setting is difficult since no explicit maximization can be obtained under constraint in terms of distribution functions. Pan and Zhou (2002), instead, study the …

Continuous Time Multi-State Models For Interval Censored Data, Lijie Wan

Theses and Dissertations--Statistics

Continuous-time multi-state models are widely used in modeling longitudinal data of disease processes with multiple transient states, yet the analysis is complex when subjects are observed periodically, resulting in interval censored data. Recently, most studies focused on modeling the true disease progression as a discrete time stationary Markov chain, and only a few studies have been carried out regarding non-homogenous multi-state models in the presence of interval-censored data. In this dissertation, several likelihood-based methodologies were proposed to deal with interval censored data in multi-state models.

Firstly, a continuous time version of a homogenous Markov multi-state model with backward transitions was …

Aggregated Quantitative Multifactor Dimensionality Reduction, Rebecca E. Crouch

Theses and Dissertations--Statistics

We consider the problem of making predictions for quantitative phenotypes based on gene-to-gene interactions among selected Single Nucleotide Polymorphisms (SNPs). Previously, Quantitative Multifactor Dimensionality Reduction (QMDR) has been applied to detect gene-to-gene interactions associated with elevated quantitative phenotypes, by creating a dichotomous predictor from one interaction which has been deemed optimal. We propose an Aggregated Quantitative Multifactor Dimensionality Reduction (AQMDR), which exhaustively considers all k-way interactions among a set of SNPs and replaces the dichotomous predictor from QMDR with a continuous aggregated score. We evaluate this new AQMDR method in a series of simulations for two-way and three-way interactions, …

Peeking Inside The Black Box: A Preliminary Survey Of Technology Assisted Review (Tar) And Predictive Coding Algorithms For Ediscovery, Shannon Brown

Suffolk Journal of Trial and Appellate Advocacy

No abstract provided.

Daubert Debunked: A History Of Legal Retrogression And The Need To Reassess Scientific Admissibility, Barbara Billauer Pfeffer

Suffolk Journal of Trial and Appellate Advocacy

No abstract provided.

Collective Leadership Practices That Assure High Levels Of Student Learning For All: High School Implementation Of Response To Intervention, Melissa E. Wainwright

Theses and Dissertations--Educational Leadership Studies

Twenty-first century schools are complex organizations that serve individual students’ needs while meeting accountability and assessment demands. Effective leadership balances these diverse responsibilities through collective work of the shareholders in order to assure high levels of learning for all.

This qualitative study examined Response to Intervention (RTI) implementation in two high performing high schools in Kentucky. Both schools were classified as distinguished on the 2014-15 Kentucky School Report Card. One school has a long-standing tradition of high performance. The other school’s journey to high performance involved moving from a Needs Improvement School to a School of Distinction.

The 4-D Appreciative …

The Reversibility Problem For A Family Of Two-Dimensional Cellular Automata, Mehmet Emi̇n Köroğlu, İrfan Şi̇ap, Hasan Akin

Turkish Journal of Mathematics

In this paper the reversibility problem of a family of two-dimensional cellular automata is completely resolved. It is well known that the reversibility problem is a very difficult one in general. In order to determine whether a cellular automaton is reversible or not the reversibility of its rule matrix is studied via linear algebraic tools. However, in this particular study the authors consider a novel approach. By observing the algebraic structures of rule matrices that represent these families and associating them with polynomials in two variables in a quotient ring, the solution to the reversibility problem is simplified greatly. Hence, …

Antagonistic Interactions Between Aquatic Turtles And Territorial Sunfish, Tara Jane Snyder

Theses, Dissertations and Culminating Projects

When sunfish (Lepomis spp.) breed, parents defend nest sites and are highly aggressive and territorial against conspecifics and other fish and invertebrate species. However, little is known of their possible effects on sympatric turtle species. In this study I examined the relationship between the musk turtle (Sternotherus odoratus), painted turtle (Chrysemys picta), pumpkinseed sunfish (.Lepomis gibbosus), and bluegill sunfish (Lepomis macrochirus) within Lake Wapalanne, Sandyston, New Jersey. My hypotheses were: presence of musk and painted turtle individuals would diminish within the sunfish nest habitats during the breeding period and would revert back to normal numbers of captures post-sunfish breeding; musk …

Survey On Remnant Data Research: The Artefacts Recovered And The Implications In A Cyber Security Conscious World, Michael James, Patryk Szewczyk

Australian Digital Forensics Conference

The prevalence of remnant data in second hand storage media is well documented. Since 2004 there have been ten separate papers released through Edith Cowan University alone. Despite numerous government agencies providing advice on securing personal and corporate information, and news articles highlighting the need for data security, the availability of personal and confidential data on second hand storage devices is continuing, indicating a systemic laissez faire attitude to data security, even in our supposedly cyber security conscious world. The research continues, but there seems to be a lack of correlation of these studies to identify trends or common themes …

The Determination Of In Vitro Gas Production And Metabolizable Energy Value Of Rice Straw Treated With Exogenous Fibrolytic Enzymes, Zehra Selçuk, Nurcan Çeti̇nkaya, Mustafa Salman, Buğra Genç

Turkish Journal of Veterinary & Animal Sciences

This study was conducted to determine the effects of cellulase and xylanase treatments on in vitro 24-h gas production (GP), organic matter digestibility (OMD), and metabolizable energy (ME) values of rice straw (RS). Rice straws were treated with cellulase and xylanase at the levels of 0% (C1), 0.5% (RS+CEL0.5), 1% (RS+CEL1), 1.5% (RS+CEL1.5), and 2% (RS+CEL2) and 0% (C2), 0.5% (RS+XYL0.5), 1% (RS+XYL1), 1.5% (RS+XYL1.5), and 2% (RS+XYL2), respectively. Rice straws treated with each level of cellulase and xylanase were ensiled in 6 glass jars. For each level of cellulase and xylanase treatment, 3 glass jars were incubated at room …

System Frequency Support Of Permanent Magnet Synchronous Generator-Based Wind Power Plant, Ziping Wu

Electronic Theses and Dissertations

With ever-increasing penetration of wind power into modern electric grids all over the world, a trending replacement of conventional synchronous generators by large wind power plants will likely result in the poor overall frequency regulation performance. On the other hand, permanent magnet synchronous generator wind Turbine System (PMSG-WTG) with full power back to back converters tends to become one of the most promising wind turbine technologies thanks to various advantages. It possesses a significant amount of kinetic energy stored in the rotating mass of turbine blades, which can be utilized to enhance the total inertia of power system. Additionally, the …