Digital Commons Network^™

Powerforecaster: Predicting Power Impact Of Mobile Sensing Applications At Pre-Installation Time, Chulhong Min, Youngki Lee, Chungkuk Yoo, Seungwoo Kang, Inseok Hwang, Junehwa Song

Research Collection School Of Computing and Information Systems

Today's smartphone application (hereinafter 'app') markets miss a key piece of information, power consumption of apps. This causes a severe problem for continuous sensing apps as they consume significant power without users' awareness. Users have no choice but to repeatedly install one app after another and experience their power use. To break such an exhaustive cycle, we propose PowerForecaster, a system that provides users with power use of sensing apps at pre-installation time. Such advanced power estimation is extremely challenging since the power cost of a sensing app largely varies with users' physical activities and phone use patterns. We observe …

On Analyzing Geotagged Tweets For Location-Based Patterns, Philips Kokoh Prasetyo, Palakorn Achananuparp, Ee Peng Lim

Research Collection School Of Computing and Information Systems

Geotagged social media is becoming highly popular as social media access is now made very easy through a wide range of mobile apps which automatically detect and augment social media posts with geo-locations. In this paper, we analyze two kinds of location-based patterns. The first is the association between location attributes and the locations of user tweets. The second is location association pattern which comprises a pair of locations that are co-visited by users. We demonstrate that through tracking the Twitter data of Singapore-based users, we are able to reveal association between users tweeting from school locations and the school …

Data Analytics On Consumer Behavior In Omni-Channel Retail Banking, Card And Payment Services, Geng Dan

Research Collection School Of Computing and Information Systems

Innovations in financial services have created challenges for banks that Information Systems (IS) research can address. My interests involve transaction cost theory, substitution and complementarity theory, and consumer informedness theory to understand consumer behavior and firm performance in the omni-channel world of digital banking. At a high level, my research inquiry asks: How can financial institutions take advantage of the deep insights that data analytics and management science modeling create on consumer behavior and channel management decision-making? And how can changes in payments and services in retail banking be understood in spatial and temporal terms? I am working on three …

A Tool-Free Calibration Method For Turntable-Based 3d Scanning Systems, Xufang Pang, Rynson W.H. Lau, Zhan Song, Shengfeng He, Shengfeng He

Research Collection School Of Computing and Information Systems

Turntable-based 3D scanners are popular but require calibration of the turntable axis. Existing methods for turntable calibration typically make use of specially designed tools, such as a chessboard or criterion sphere, which users must manually install and dismount. In this article, the authors propose an automatic method to calibrate the turntable axis without any calibration tools. Given a scan sequence of the input object, they first recover the initial rotation axis from an automatic registration step. Then they apply an iterative procedure to obtain the optimized turntable axis. This iterative procedure alternates between two steps: refining the initial pose of …

Current Challenges In Atrial Fibrillation Ablation, Edward John Davies

Peninsula Medical School Theses

The ablative management of atrial fibrillation, despite a number of landmark discoveries, remains one of the most challenging fields in interventional electrophysiology. It is generally accepted that successful isolation of the pulmonary veins is a highly effective way of managing paroxysmal forms of AF. However, despite almost a decade of research into alternative lesion patterns, the solution to persistent AF remains beyond our grasp. A variety of strategies have been proposed to target key areas in the atria; these use various complex mapping systems, usually based on tailored lesion sets to try and improve outcomes. None have proven to be …

Activity Recognition Using Wearable Computing, Neamah Al-Naffakh, Nathan Clarke, Paul Dowland, Fudong Li

School of Engineering, Computing and Mathematics

No abstract provided.

A Floating Ocean Energy Conversion Device And Numerical Study On Buoy Shape And Performance, Ruiyin Song, Meiqin Zhang, Xiaohua Qian, Xiancheng Wang, Yong Ming Dai, Junhua Chen

School of Engineering, Computing and Mathematics

No abstract provided.

Marine Renewable Energy Seascape, Alistair G.L. Borthwick

School of Engineering, Computing and Mathematics

No abstract provided.

Social Justice And Human Rights In Education Policy Discourse: Assessing Nelson Mandela's Legacy, Abrehet Gebremedhin, Devin Joshi

Research Collection School of Social Sciences

Twenty years after South Africa's democratisation, Nelson Mandela's passing has prompted scholars to examine his legacy in various domains. Here we take a look at his legacy in education discourse. Tracing Mandela's thoughts and pronouncements on education we find two major emphases: a view of education as a practical means to economic development, and education as a means to social justice, human rights, and democracy. Assessing the legacy of these twin emphases, we conducted qualitative and quantitative content analysis of turning point documents in education policy and annual reports from the respective South African ministries of education over the last …

Assessment Of Measured And Perceived Microclimates Within A Tropical Urban Forest, Winston T. L. Chow, Siti Nur ‘Assyakirin Binte Ali Akbar, Su Li Heng, Matthias Roth

Research Collection School of Social Sciences

Urban greenery is a favoured approach applied towards reducing urban warmth and climate discomfort, but ascertaining its measured and perceived effectiveness in tropical climates is relatively understudied. To this end, we investigated microclimate differences within an urban park (the Singapore Botanic Gardens) to assess if variations in plot-scale land cover affect both objective (measured) and subjective (surveyed) microclimate data. Over two monsoonal seasons, we obtained data from four distinct sites—a tropical rainforest stand, a palm tree valley, a water-body feature, and the park visitors’ centre. Measured climate data (e.g. air temperature, vapour pressure, wind velocity and globe temperatures) were used …

One Swallow Does Not Make Spring: A Critical Juncture Perspective On The Eu Sanctions In Response To The Arab Spring, Andreas Boogaerts, Clara Portela, Edith Drieskens

Research Collection School of Social Sciences

This article examines to what extent the Arab Spring constitutes a critical juncture – a major turning point – for the EU’s sanctions policy towards Egypt, Libya, Syria and Tunisia. Based on a multidimensional critical juncture operationalization, we find that the Arab Spring only constitutes such a turning point for the EU’s sanctions policy towards Syria. Both the level and nature of measures differ substantially from previous years. By contrast, the EU’s sanctions practice towards Libya, Egypt and Tunisia shows more resilience. More generally, changes in the nature of the measures are prominent, whereas changes in the level of the …

The Effect Of Board Independence On Information Asymmetry, Beng Wee Goh, Jimmy Lee, Jeffrey Ng, Kevin Ow Yong

Research Collection School Of Accountancy

Boards have an important role in ensuring that investors’ interests are protected. Our paper first examines whether the independence of a firm's board affects information asymmetry among investors. We provide evidence that greater board independence leads to lower information asymmetry. Next, we provide evidence that more voluntary disclosure and greater analyst coverage are two underlying mechanisms via which greater board independence reduces information asymmetry. Of the two mechanisms, we find that analyst coverage is more significant in influencing how board independence affects information asymmetry. Overall, our paper contributes to a better understanding of the effect of board independence on information …

2016 Spring Commencement, Georgia Southern University

Commencement Programs

No abstract provided.

An Extended Study On Addressing Defender Teamwork While Accounting For Uncertainty In Attacker Defender Games Using Iterative Dec-Mdps, Eric Shieh, Albert Xin Jiang, Amulya Yadav, Pradeep Varakantham, Milind Tambe

Research Collection School Of Computing and Information Systems

Multi-agent teamwork and defender-attacker security games are two areas that are currently receiving significant attention within multi-agent systems research. Unfortunately, despite the need for effective teamwork among multiple defenders, little has been done to harness the teamwork research in security games. The problem that this paper seeks to solve is the coordination of decentralized defender agents in the presence of uncertainty while securing targets against an observing adversary. To address this problem, we offer the following novel contributions in this paper: (i) New model of security games with defender teams that coordinate under uncertainty; (ii) New algorithm based on column …

The Space Of Art, Michael R. Hill

Department of Sociology: Faculty Publications

Three years ago, Tami Miller challenged me to think formally about “the concept of space as creative grounds for enlivenment and immersion,” and today’s talk revisits part of the lecture I gave here in 2013.3 The ideas presented then — as now — are grounded in my university training, research and teaching in the interrelated disciplines of geography, design studies, landscape architecture, community and regional planning, and sociology.

While mostly skipping over the concept of “time” (that’s quite another discussion), I will review five spatial constructs and related ideas useful in our work as docents.

Economic Hardship, Parents’ Depression, And Relationship Distress Among Couples With Young Children, Deadric T. Williams, Jacob E. Cheadle

Department of Sociology: Faculty Publications

Using data from the Fragile Families and Child Well-being Study (N = 1,492 couples), we assessed stress, health selection, and couple-crossover hypotheses by examining (1) the bidirectional association between economic hardship and depressive symptoms one, three, and five years after the birth of a child; (2) the association between economic hardship and depressive symptoms on relationship distress for both parents; and (3) whether the associations vary by marital status. The results suggest a pernicious cycle for mothers after the birth of the child. Economic hardship increases depression, but maternal depression also increases economic hardship. These reinforcing mechanisms increase both mothers’ …

2016-2017 Graduate Catalog, Armstrong State University

Armstrong Office of the Registrar: Graduate Catalogs (Archived)

Academic catalog for Armstrong State University.

Development Of A Dynamics Model For The Baxter Robot, Alex Smith, Chenguang Yang, Chunxu Li, Hongbin Ma, Lijun Zhao

School of Engineering, Computing and Mathematics

No abstract provided.

Bsmbench: A Flexible And Scalable Hpc Benchmark From Beyond The Standard Model Physics, E Bennett, B Lucini, Debbi L Del, K Jordan, A Patella, C Pica, A Rago

School of Engineering, Computing and Mathematics

No abstract provided.

On Detecting Maximal Quasi Antagonistic Communities In Signed Graphs, Ming Gao, Ee-Peng Lim, David Lo, Philips Kokoh Prasetyo

Research Collection School Of Computing and Information Systems

Many networks can be modeled as signed graphs. These include social networks, and relationships/interactions networks. Detecting sub-structures in such networks helps us understand user behavior, predict links, and recommend products. In this paper, we detect dense sub-structures from a signed graph, called quasi antagonistic communities (QACs). An antagonistic community consists of two groups of users expressing positive relationships within each group but negative relationships across groups. Instead of requiring complete set of negative links across its groups, a QAC allows a small number of inter-group negative links to be missing. We propose an algorithm, Mascot, to find all maximal quasi …

A Comparison Of Fundamental Network Formation Principles Between Offline And Online Friends On Twitter, Felicia Natali, Feida Zhu

Research Collection School Of Computing and Information Systems

We investigate the differences between how some of the fundamental principles of network formation apply among offline friends and how they apply among online friends on Twitter. We consider three fundamental principles of network formation proposed by Schaefer et al.: reciprocity, popularity, and triadic closure. Overall, we discover that these principles mainly apply to offline friends on Twitter. Based on how these principles apply to offline versus online friends, we formulate rules to predict offline friendship on Twitter. We compare our algorithm with popular machine learning algorithms and Xiewei’s random walk algorithm. Our algorithm beats the machine learning algorithms on …

A Formalism For Plan – A Big Data Personal Learning Assistant For University Students, Timothy Arndt, Angela Guercio

Business Faculty Publications

Big Data-based methods of learning analytics are increasingly relied on by institutions of higher learning in order to increase student retention by identifying at risk students who are in need of an intervention to allow them to continue on in their educational endeavors. It is well known that e-Learning students are even more at risk of failing out of university than are traditional students, so Big Data learning analytics are even more appropriate in this context. In this paper, we present our approach to this problem. We wish to place control of a student’s learning process in his own hands, …

A Moving Imagination In Spaces Of Distress: Teacher And Student Agency In A Science Classroom, Annie Sunshine Adamian

Doctoral Dissertations

This qualitative study explored the ways in which our classroom community (students and teacher) engaged with humanizing pedagogy in a seventh grade science classroom, toward the full development (e.g. personal, social, emotional, academic) of our classroom community, and the dismantling of inequitable practices and unjust policies that we recognized in our science classroom, school and/or community while utilizing the process of teacher and student participatory action research (tsPAR) (Adamian, 2015) and Critical Race Praxis for Educational Research (CRP-Ed) (Jayakumar & Adamian, 2015).

This study examined the complexities of mutually engaging across differing positionalities while intentionally working in spaces of distress …

Forecasting The Senate Vote On The Supreme Court Vacancy, Scott J. Basinger, Maxwell Mak

Publications and Research

This paper forecasts current senators’ votes on Merrick Garland’s nomination to the U.S. Supreme Court, in the unlikely case that a vote actually takes place. The forecasts are necessarily conditional, awaiting measurement of the nominee’s characteristics. Nonetheless, a model that combines parameters estimated from existing data with values of some measurable characteristics of senators—particularly their party affiliations, party loyalty levels, and ideological positions—is sufficient to identify potential swing voters in the Senate. By accounting for a more nuanced and refined understanding of the confirmation process, our model reveals that if President Obama were to nominate almost any nominee (conservative or …

A Different Type Of Lighting Research: A Qualitative Methodology, Kevin Kelly

Articles

As lighting researchers we can learn from our colleagues in the humanities who have progressed Qualitative Research methods to a high level of rigour. We should consider using Qualitative Research Methods more. Such methods allow exploration of complex issues involving human behaviour and facilitate researchers to address difficult to answer questions that otherwise go unanswered. Good quality Qualitative Research can provide rich explanations of what went on in a given situation. Validity and Reliability are considered differently with this type of research methodology. This paper attempts to identify when qualitative research is appropriate, what questions it can answer in lighting …

Gravity As An Ultra-Low Frequency Scattering Efect, Jonathan Blackledge

Articles

Under the weak gravitational field appromination and for the 00-component of the stress-energy tensor, Einstein's field equations for the gravitational potential. By considering Newton' field equation to be the result of an ultra-low frequency scattering effect (in the limiting) case, this work introduces a model where gravitational field is taken to be the result of an ultra-low frequency gravitational wave (propagating in a near-Cartesian Minkowski space) scattering from an object (a mass)

Time Series Analysis For A 1/Tb Memory Function And Comparison With The Lyapunov Exponent Using Volatility Scaling, Paddy Walsh, Jonathan Blackledge

Articles

Being able to provide accurate forecasts on the trending behaviour of time series is important in a range of applications involving the real time evolution of signals, most notable in financial time series analysis but control engineering in general. A critical solution for providing high accuracy forecasts is the filtering operation used to identify the position in time at which a trend occurs subject to a time delay factor that is inherent in the filtering strategy used. The paper explores this strategy and presents some example results that provide a quantitative measure of the accuracy used.

Learner-Centered Teaching For Environmental And Sustainability Studies, Loren B. Byrne

Arts & Sciences Faculty Publications

This volume merges two aspects of education that have rapidly changed in recent years: environmental and sustainability education, and knowledge about effective pedagogy. Its central purpose is to disseminate engaging teaching activities that instructors can use to help increase students’ environmental literacy. The included activities are that require minimal instructor preparation, do not require elaborate setups or specialized materials, and can be used in many course contexts but especially in traditional (i.e., non-laboratory, indoor) classroom spaces; most can be completed in one or two class sessions. The target audience is primarily higher-education instructors (including graduate level), but high school teachers …

Evaluating The Biogeochemical Functioning Of A Constructed Fen On The Post-Mining Landscape Of Athabasca Oil Sands Region, Fort Mcmurray, Alberta, Canada, Felix C. Nwaishi

Theses and Dissertations (Comprehensive)

Peatlands have a unique biogeochemical function, characterized by an imbalance between the rates of biomass accumulation and decomposition. These characteristics facilitate the ability of peatlands to support the sequestration of nutrients and carbon. In disturbed peatlands, these functions are compromised. Thus, reclamation targets amongst other key functions, the recovery of biogeochemical functioning. These functions could serve as a measure of recovery to conditions that are present in natural analogues. This thesis examines the recovery of microbially-mediated nutrient transformation processes in a fen peatland that was constructed on a post-mining landscape in the Athabasca oil sands region, Fort McMurray, Alberta. The …

Spanish River Carbonatite: Its Benefits And Potential Use As A Soil Supplement In Agriculture, James J

Theses and Dissertations (Comprehensive)

A critical problem facing agriculture today is being able to consistently and sustainably provide plants with adequate nutrients for growth. With this problem being exacerbated by the ever-increasing human population, new perspectives and techniques are required to ensure global food security. In order to fully realize potential solutions, however, plant growth and nutrition cannot be exclusively focused upon. The soil-microorganism-plant system is comprised of many interconnected and interdependent processes that together support plant growth: it is upon these processes that the focus must be placed. In this work, the agromineral Spanish River Carbonatite (SRC) is characterized using the framework of …