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2016

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Impact Of Isp, Bpr, And Customization On Erp Performance In Manufacturing Smes Of Korea, Soon-Goo Hong, Keng Siau, Jong-Weon Kim Dec 2016

Impact Of Isp, Bpr, And Customization On Erp Performance In Manufacturing Smes Of Korea, Soon-Goo Hong, Keng Siau, Jong-Weon Kim

Research Collection School Of Computing and Information Systems

Purpose: This paper aims to assess how enterprise resource planning (ERP) performance of Korean small and medium enterprises in manufacturing differs according to different levels of business process reengineering (BPR), information strategic planning (ISP) and ERP customization. Design/methodology/approach: A questionnaire survey was carried out in this research. Responses from 96 small and medium manufacturing companies that have adopted ERP systems were analyzed. Findings: The results of this study suggest that ISP and BPR implementation are positively correlated to ERP performance. Originality/value: While consulting and customization costs have positive impacts on ERP performance, the level of customization does not influence performance. …


Review: Scholar, Courtier, Magician: The Lost Library Of John Dee [Exhibition At Royal College Of Physicians Museum, London, 18 January - 28 July 2016], Emily Soon Dec 2016

Review: Scholar, Courtier, Magician: The Lost Library Of John Dee [Exhibition At Royal College Of Physicians Museum, London, 18 January - 28 July 2016], Emily Soon

Research Collection School of Social Sciences

In the mural the acclaimed illustrator Quentin Blake created to commemorate Cambridge University’s 800th anniversary (2009), the Cambridge alumnus and polymath John Dee (1527 – 1609) comes across as a delightfully demented figure. Cloaked in black and surrounded by books and odd objects, Dee looks intent on conjuring up visions from within a large crystal ball. Blake’s watercolour encapsulates the popular image of Dee as a dabbler in the dark arts, one whose quest for the philosopher’s stone represents the equally dark state of learning thought to exist before the emergence of modern science. Indeed, the contemporary cultural fascination with …


The “Great Flood” Of 1926: Environmental Change And Post-Disaster Management In British Malaya, Fiona Williamson Dec 2016

The “Great Flood” Of 1926: Environmental Change And Post-Disaster Management In British Malaya, Fiona Williamson

Research Collection College of Integrative Studies

This paper is an historical case study of a major flood that occurred in British Malaya in 1926. It focuses on two key points. First, that the magnitude and subsequent impacts of the flood were exacerbated by contemporary industrial, agricultural, and hydraulic practices. Second, that this event pushed the British colonial government toward improving their land and river management strategies over the following decades. This article draws on recent research arguing the importance of an historical approach to disaster, as it enables greater insight into a disaster's causes and long‐term political, social, and environmental ramifications. Focussing on December 1926—a month …


Interactions In The Cpsrp Dependent Targeting Of Light Harvesting Chlorophyll Binding Protein To The Thylakoid Membrane, Rory Henderson Dec 2016

Interactions In The Cpsrp Dependent Targeting Of Light Harvesting Chlorophyll Binding Protein To The Thylakoid Membrane, Rory Henderson

Graduate Theses and Dissertations

Targeting of proteins is a critical component of cellular function. A universally conserved targeting system of the cytosol utilizes a signal recognition particle (SRP) to target many proteins contranslationally to the endoplasmic reticulum in eukaryotes or the inner membrane in prokaryotes. A homologous SRP system exists in the chloroplast that delivers light harvesting chlorophyll binding proteins (LHCP) to they thylakoid membrane. The chloroplast SRP (cpSRP) is a heterodimer composed of a novel 43 kDa subunit and a 54 kDa subunit homologous to a component of the SRP system, SRP54. Many details regarding the interactions between the proteins of the cpSRP …


The Future Of Web Citation Practices, Robin Camille Davis Dec 2016

The Future Of Web Citation Practices, Robin Camille Davis

Publications and Research

Citing webpages has been a common practice in scholarly publications for nearly two decades as the Web evolved into a major information source. But over the years, more and more bibliographies have suffered from “reference rot”: cited URLs are broken links or point to a page that no longer contains the content the author originally cited. In this column, I look at several studies showing how reference rot has affected different academic disciplines. I also examine citation styles’ approach to citing web sources. I then turn to emerging web citation practices: Perma, a “freemium” web archiving service specifically for citation; …


Characterization And Delineation Of Karst Geohazards Along Rm652 Using Electrical Resistivity Tomography, Culberson County, Texas, Adam F. Majzoub Dec 2016

Characterization And Delineation Of Karst Geohazards Along Rm652 Using Electrical Resistivity Tomography, Culberson County, Texas, Adam F. Majzoub

Electronic Theses and Dissertations

The Delaware Basin of West Texas and southeastern New Mexico is the major western subdivision of the Permian Basin and a northern extension of the Chihuahuan Desert. The major evaporite unit within the Delaware Basin is the Castile Formation, which consists of gypsum/anhydrite and is highly susceptible to dissolution and karsting. Manifestations of karst within the Castile outcrop are abundant and include sinkholes, subsidence features and caves, both epigene and hypogene in origin.

Land reconnaissance surveys conducted during the summer of 2015 documented abundant karst landforms in close proximity to a major thoroughfare, RM 652, in Culberson County, Texas. 2D …


Defying Convention: Atypical Perspectives Of Slavery In Antebellum New Orleans, Amanda N. Carr Dec 2016

Defying Convention: Atypical Perspectives Of Slavery In Antebellum New Orleans, Amanda N. Carr

Electronic Theses and Dissertations

During the first half of the nineteenth century, slavery became a vital economic component upon which the success of the southern states in America rested. Cotton was king, and slavery was the peculiar institution that ensured its dominance in the domestic and international markets of America. Popular portrayals, however, often neglect the complicated dynamics of American slavery and instead depict the institution in simplistic terms. The traditional view has emphasized an image of white southerners as slaveholders and blacks as slaves. In New Orleans, the lives of three men—all of whom were tied to slavery in varying capacities—reveal a much …


Geotechnical Properties Of The Travis Peak (Hosston) Formation In East Texas: A Compressive And Tensile Strength Analysis Using Regression Analysis., Pawan Kakarla Dec 2016

Geotechnical Properties Of The Travis Peak (Hosston) Formation In East Texas: A Compressive And Tensile Strength Analysis Using Regression Analysis., Pawan Kakarla

Electronic Theses and Dissertations

The estimation of rock mass strength is a key parameter in geotechnical engineering which is used in the design of geotechnical structures like tunnels, dams and slopes. Geotechnical engineering is the branch of civil engineering which works on the principles of soil and rock mechanics to evaluate subsurface conditions, stability of slopes, foundations of structures and construction of earthworks. The main focus of this study was to calculate the strength of Lower Cretaceous Travis Peak Formation rocks of East Texas and to check the accuracy by comparing it with Regression analysis. The parameters which were used were the Uniaxial Compression …


Property Rights And International Trade: An Institutional Determinant Of Export Structure, Gregory Alan Bonadies Dec 2016

Property Rights And International Trade: An Institutional Determinant Of Export Structure, Gregory Alan Bonadies

Dissertations

This work investigates the connection, independent of other factors, between a country’s system of law and property rights and patterns of trade. Stronger property rights institutions are hypothesized to lead to greater diversity in exports and a greater proportion of higher value-added exports. Production and export possibilities depend on capital, labor, and technology. Technology is the way in which capital and labor resources can be organized for productive purposes. Property rights condition expressions of technology and thus production possibilities and export potential. Consequently, if property rights vary between countries, then technological expression, production possibilities, and export potential vary as well. …


An Analysis Of The Act Sub-Scores’ Ability To Predict The Outcome Of College Algebra Through The Lens Of Modern Chaos Theory, Johnathan Jay Mcewen Dec 2016

An Analysis Of The Act Sub-Scores’ Ability To Predict The Outcome Of College Algebra Through The Lens Of Modern Chaos Theory, Johnathan Jay Mcewen

Dissertations

ACT scores are widely used to predict outcomes in coursework and serve as placement guidelines for college level courses such as college algebra. Due to a changing college environment, the appropriateness of these placement decisions takes on a new, more critical light. Given the rate of success for current predictions in college algebra, and the resulting consequences for misplacement, this study examines the predictive potential of the ACT scores through the examination of non-linear variables and a metaphorically chaotic interpretational lens.

The literature base for this study reveals, almost to exclusion, the use of linear models for the prediction of …


Mixed-Criticality Scheduling To Minimize Makespan, Sanjoy K. Baruah, Arvind Easwaran, Zhishan Guo Dec 2016

Mixed-Criticality Scheduling To Minimize Makespan, Sanjoy K. Baruah, Arvind Easwaran, Zhishan Guo

Computer Science Faculty Research & Creative Works

In the mixed-criticality job model, each job is characterized by two execution time parameters, representing a smaller (less conservative) estimate and a larger (more conservative) estimate on its actual, unknown, execution time. Each job is further classified as being either less critical or more critical. The desired execution semantics are that all jobs should execute correctly provided all jobs complete upon being allowed to execute for up to the smaller of their execution time estimates, whereas if some jobs need to execute beyond their smaller execution time estimates (but not beyond their larger execution time estimates), then only the jobs …


Predictors Of Diarrheal Mortality And Patterns Of Caregiver Health Seeking Behavior In In Karachi, Pakistan, Farah Naz Qamar, Umber Zaman, Farheen Quadri, Asia Khan, Babar Tasneem Shaikh, Iqbal Azam, Dilruba Nasrin, Karen Kotloff, Myron Levine, Nick Brown Dec 2016

Predictors Of Diarrheal Mortality And Patterns Of Caregiver Health Seeking Behavior In In Karachi, Pakistan, Farah Naz Qamar, Umber Zaman, Farheen Quadri, Asia Khan, Babar Tasneem Shaikh, Iqbal Azam, Dilruba Nasrin, Karen Kotloff, Myron Levine, Nick Brown

Department of Paediatrics and Child Health

Background: Pakistan is unfortunately among the five countries that contributed to the most deaths due to diarrhea and pneumonia in 2010. To explore factors associated with diarrheal deaths we assessed care-seeking behavior and other predictors of diarrhea-related mortality in children in selected low-income peri-urban communities of Karachi, Pakistan.
Methods: A mixed methods study (qualitative and quantitative) using matched case-control design and focus group discussions with parents of children with moderate to severe diarrhea (MSD) was undertaken. Cases were children Demographic, clinical, and care-related behavioral predictors of mortality were assessed. Conditional logistic regression was performed, matched adjusted odds ratios (mOR) are …


College Of Education News, College Of Education, Georgia Southern University Dec 2016

College Of Education News, College Of Education, Georgia Southern University

College of Education: News & Publications (2003-2023)

  • Middle grades candidates serve on state-wide board
  • Middle grades candidates attend Middle Level Summit at Georgia College


Georgia’S Rapid Expansion Of Mosquito Surveillance In Response To Zika Virus, R. Christopher Rustin, Deonte Martin, Rosmarie Kelly Dec 2016

Georgia’S Rapid Expansion Of Mosquito Surveillance In Response To Zika Virus, R. Christopher Rustin, Deonte Martin, Rosmarie Kelly

Environmental Health Sciences: Faculty Presentations (2010-2017)

Objective: To describe the Georgia Department of Public Health’s (DPH) mosquito surveillance capacity before and after Zika virus was declared a public health emergency, review and compare mosquito surveillance results from 2015 to 2016, and evaluate the risk of autochthonous vector transmission of Zika virus based on 2016 surveillance data of Aedes aegypti and Aedes albopictus mosquitoes.

Introduction: Zika virus was declared an international public health emergency by the World Health Organization on February 1, 2016. With Georgia hosting the world’s busiest international airport and a sub-tropical climate that can support the primary Zika virus vector, Aedes aegypti, and secondary …


Interview With Bettina Love: Creating Spaces That Matter, Meca Williams-Johnson Dec 2016

Interview With Bettina Love: Creating Spaces That Matter, Meca Williams-Johnson

Curriculum, Foundations & Reading: Faculty Publications

This is an interview with Dr. Bettina Love on her work with the Kindezi Schools, a small, high-performing charter group in Atlanta, Georgia. Dr. Love’s thought provoking responses provide insight into the dynamics that make Kindezi Schools successful at reaching their students. Additionally, she shares concerns about the dilemma of Opportunity School Districts (OSD) and the schism OSD’s create in minority communities. Lastly, she shares how Kindezi became an opportunity school for Atlanta youth. This interview will be beneficial for parents, principals, teachers, and stakeholders who are interested in understanding how and why creating spaces to nurture student learning matters.


Enhancements In Localized Classification For Uterine Cervical Cancer Digital Histology Image Assessment, Peng Guo, Haidar A. Almubarak, Koyel Banerjee, R. Joe Stanley, L. Rodney Long, Sameer K. Antani, George R. Thoma, Rosemary E. Zuna, Shelliane R. Frazier, Randy Hays Moss, William V. Stoecker Dec 2016

Enhancements In Localized Classification For Uterine Cervical Cancer Digital Histology Image Assessment, Peng Guo, Haidar A. Almubarak, Koyel Banerjee, R. Joe Stanley, L. Rodney Long, Sameer K. Antani, George R. Thoma, Rosemary E. Zuna, Shelliane R. Frazier, Randy Hays Moss, William V. Stoecker

Electrical and Computer Engineering Faculty Research & Creative Works

Background: In previous research, we introduced an automated, localized, fusion-based approach for classifying uterine cervix squamous epithelium into Normal, CIN1, CIN2, and CIN3 grades of cervical intraepithelial neoplasia (CIN) based on digitized histology image analysis. As part of the CIN assessment process, acellular and atypical cell concentration features were computed from vertical segment partitions of the epithelium region to quantize the relative distribution of nuclei.

Methods: Feature data was extracted from 610 individual segments from 61 images for epithelium classification into categories of Normal, CIN1, CIN2, and CIN3. The classification results were compared against CIN labels obtained from two pathologists …


Orienteering Problem: A Survey Of Recent Variants, Solution Approaches And Applications, Aldy Gunawan, Hoong Chuin Lau, Pieter Vansteenwegen Dec 2016

Orienteering Problem: A Survey Of Recent Variants, Solution Approaches And Applications, Aldy Gunawan, Hoong Chuin Lau, Pieter Vansteenwegen

Research Collection School Of Computing and Information Systems

Duplicate record, see https://ink.library.smu.edu.sg/sis_research/3271. The Orienteering Problem (OP) has received a lot of attention in the past few decades. The OP is a routing problem in which the goal is to determine a subset of nodes to visit, and in which order, so that the total collected score is maximized and a given time budget is not exceeded. A number of typical variants has been studied, such as the Team OP, the (Team) OP with Time Windows and the Time Dependent OP. Recently, a number of new variants of the OP was introduced, such as the Stochastic OP, the …


An Agent-Based Approach To Human Migration Movement, Larry Lin, Kathleen M. Carley, Shih-Fen Cheng Dec 2016

An Agent-Based Approach To Human Migration Movement, Larry Lin, Kathleen M. Carley, Shih-Fen Cheng

Research Collection School Of Computing and Information Systems

How are the populations of the world likely to shift? Which countries will be impacted by sea-level rise? This paper uses a country-level agent-based dynamic network model to examine shifts in population given network relations among countries, which influences overall population change. Some of the networks considered include: alliance networks, shared language networks, economic influence networks, and proximity networks. Validation of model is done for migration probabilities between countries, as well as for country populations and distributions. The proposed framework provides a way to explore the interaction between climate change and policy factors at a global scale.


From Footprint To Evidence: An Exploratory Study Of Mining Social Data For Credit Scoring, Guangming Guo, Feida Zhu, Enhong Chen, Qi Liu, Le Wu, Chu Guan Dec 2016

From Footprint To Evidence: An Exploratory Study Of Mining Social Data For Credit Scoring, Guangming Guo, Feida Zhu, Enhong Chen, Qi Liu, Le Wu, Chu Guan

Research Collection School Of Computing and Information Systems

With the booming popularity of online social networks like Twitter and Weibo, online user footprints are accumulating rapidly on the social web. Simultaneously, the question of how to leverage the large-scale user-generated social media data for personal credit scoring comes into the sight of both researchers and practitioners. It has also become a topic of great importance and growing interest in the P2P lending industry. However, compared with traditional financial data, heterogeneous social data presents both opportunities and challenges for personal credit scoring. In this article, we seek a deep understanding of how to learn users’ credit labels from social …


Demystifying And Puncturing The Inflated Delay In Smartphone-Based Wifi Network Measurement, Weichao Li, Daoyuan Wu, Rocky K. C. Chang, Ricky K. P. Mok Dec 2016

Demystifying And Puncturing The Inflated Delay In Smartphone-Based Wifi Network Measurement, Weichao Li, Daoyuan Wu, Rocky K. C. Chang, Ricky K. P. Mok

Research Collection School Of Computing and Information Systems

Using network measurement apps has become a very effective approach to crowdsourcing WiFi network performance data. However, these apps usually measure the user-level performancemetrics instead of the network-level performance which is important for diagnosing performance problems. In this paper we report for the first time that a major source of measurement noises comes from the periodical SDIO (Secure Digital Input Output) bus sleep inside the phone. The additional latency introduced by SDIO and Power Saving Mode can inflate and unstablize network delay measurement significantly. We carefully design and implement a scheme to wake up the phone for delay measurement by …


Saving The Farm Or Giving Away The Farm: A Critical Analysis Of The Capital Gains Tax Preferences, Phyllis C. Taite Dec 2016

Saving The Farm Or Giving Away The Farm: A Critical Analysis Of The Capital Gains Tax Preferences, Phyllis C. Taite

San Diego Law Review

This Article addresses some of the inequities and offers a multi-faceted proposal to raise revenue and incentivize preferences for a more balanced approached to tax policy. First, I advance a proposal that offers solutions to shift certain aspects of the capital gains tax preferences toward the middle and lower class. To balance the costs, I then propose an option to phase out or eliminate other preferences that primarily benefit the wealthiest taxpayers. This balanced approach will allow the government to raise revenue and change the capital gains tax preferences from a rewards to an incentive-based system. Part II of this …


Technical Note: On Modelling Thermo-Chemical Degradation Of Poly(Lactic Acid), Hossein Mohammad Khanlou, Wayne Hall, Michael T. Heitzman, John Summerscales, Peter Woodfield Dec 2016

Technical Note: On Modelling Thermo-Chemical Degradation Of Poly(Lactic Acid), Hossein Mohammad Khanlou, Wayne Hall, Michael T. Heitzman, John Summerscales, Peter Woodfield

School of Engineering, Computing and Mathematics

A well-established model for simulation of the chain-scission process of polylacticacid (PLA) during thermal processing has been simplified and revised. The key assumption in the new model is that the total number of monomer units is invariant as reactions progress. Surprisingly, this seemingly obvious assumption appears to have been previously overlooked. The revised model no longer requires solution of simultaneous differential equations and, for isothermal conditions, an analytical solution is readily available. The present model is in excellent agreement with the more complex model and experimental results for PLA degradation reported in the literature. This simplified model has potential to …


Zero++: Harnessing The Power Of Zero Appearances To Detect Anomalies In Large-Scale Data Sets, Guansong Pang, Kai Ming Ting, David Albrecht, Huidong Jin Dec 2016

Zero++: Harnessing The Power Of Zero Appearances To Detect Anomalies In Large-Scale Data Sets, Guansong Pang, Kai Ming Ting, David Albrecht, Huidong Jin

Research Collection School Of Computing and Information Systems

This paper introduces a new unsupervised anomaly detector called ZERO++ which employs the number of zero appearances in subspaces to detect anomalies in categorical data. It is unique in that it works in regions of subspaces that are not occupied by data; whereas existing methods work in regions occupied by data. ZERO++ examines only a small number of low dimensional subspaces to successfully identify anomalies. Unlike existing frequencybased algorithms, ZERO++ does not involve subspace pattern searching. We show that ZERO++ is better than or comparable with the state-of-the-art anomaly detection methods over a wide range of real-world categorical and numeric …


Cloud-Enhanced Robotic System For Smart City Crowd Control, Akhlaqur Rahman, Jiong Jin, Antonio Cricenti, Ashfaqur Rahman, Marimuthu Palaniswami, Tony Tie Luo Dec 2016

Cloud-Enhanced Robotic System For Smart City Crowd Control, Akhlaqur Rahman, Jiong Jin, Antonio Cricenti, Ashfaqur Rahman, Marimuthu Palaniswami, Tony Tie Luo

Computer Science Faculty Research & Creative Works

Cloud robotics in smart cities is an emerging paradigm that enables autonomous robotic agents to communicate and collaborate with a cloud computing infrastructure. It complements the Internet of Things (IoT) by creating an expanded network where robots offload data-intensive computation to the ubiquitous cloud to ensure quality of service (QoS). However, offloading for robots is significantly complex due to their unique characteristics of mobility, skill-learning, data collection, and decision-making capabilities. In this paper, a generic cloud robotics framework is proposed to realize smart city vision while taking into consideration its various complexities. Specifically, we present an integrated framework for a …


Teachers' Perception Of Their Grading Practices By Experience, Training, And State-Assessed Effectiveness, Jeremy David Hinson Dec 2016

Teachers' Perception Of Their Grading Practices By Experience, Training, And State-Assessed Effectiveness, Jeremy David Hinson

Electronic Theses and Dissertations Archive

The literature reveals a century-long acknowledgement of inconsistency within the grading process. Although scholars and practitioners ackowledge this inconsistency, teachers' subjective judgements continue to be a large factor when determining students' grades. The literature also highlights practitioners' lack of voice regarding the subject of grades. Through the use of surveys given to K-12 public educators, this research attempts to give voice to these practitioners.This research examined teachers' perceptions of their classroom grading practices. The researcher was interested in analyzing the relationships between effective teachers' thoughts on classroom assessment. Comparisons were made about teachers' on factors such as teacher effectiveness, training, …


Digging Deeper: Trends By Discipline After 4+ Years Into Winthrop’S Pda Program, Antje Mays Dec 2016

Digging Deeper: Trends By Discipline After 4+ Years Into Winthrop’S Pda Program, Antje Mays

Winthrop Faculty and Staff Publications

No abstract provided.


Dermal Uptake Directly From Air Under Transient Conditions: Advances In Modeling And Comparisons With Experimental Results For Human Subjects, G. C. Morrison, C. J. Weschler, G. Bekö Dec 2016

Dermal Uptake Directly From Air Under Transient Conditions: Advances In Modeling And Comparisons With Experimental Results For Human Subjects, G. C. Morrison, C. J. Weschler, G. Bekö

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

To better understand the dermal exposure pathway, we enhance an existing mechanistic model of transdermal uptake by including skin surface lipids (SSL) and consider the impact of clothing. Addition of SSL increases the overall resistance to uptake of SVOCs from air but also allows for rapid transfer of SVOCs to sinks like clothing or clean air. We test the model by simulating di-ethyl phthalate (DEP) and di-n-butyl phthalate (DnBP) exposures of six bare-skinned (Weschler et al. 2015, Environ. Health Perspect., 123, 928) and one clothed participant (Morrison et al. 2016, J. Expo. Sci. Environ. Epidemiol., 26, 113). The model predicts …


On The Vulnerabilities Of Voronoi-Based Approaches To Mobile Sensor Deployment, Novella Bartolini, Stefano Ciavarella, Simone Silvestri, Thomas La Porta Dec 2016

On The Vulnerabilities Of Voronoi-Based Approaches To Mobile Sensor Deployment, Novella Bartolini, Stefano Ciavarella, Simone Silvestri, Thomas La Porta

Computer Science Faculty Research & Creative Works

Mobile sensor networks are the most promising solution to cover an Area of Interest (AoI) in safety critical scenarios. Mobile devices can coordinate with each other according to a distributed deployment algorithm, without resorting to human supervision for device positioning and network configuration. In this paper, we focus on the vulnerabilities of the deployment algorithms based on Voronoi diagrams to coordinate mobile sensors and guide their movements. We give a geometric characterization of possible attack configurations, proving that a simple attack consisting of a barrier of few compromised sensors can severely reduce network coverage. On the basis of the above …


Fine-Grained Multitask Allocation For Participatory Sensing With A Shared Budget, Jiangtao Wang, Yasha Wang, Daqing Zhang, Leye Wang, Haoyi Xiong, Abdelsalam Helal, Yuanduo He, Feng Wang Dec 2016

Fine-Grained Multitask Allocation For Participatory Sensing With A Shared Budget, Jiangtao Wang, Yasha Wang, Daqing Zhang, Leye Wang, Haoyi Xiong, Abdelsalam Helal, Yuanduo He, Feng Wang

Computer Science Faculty Research & Creative Works

For participatory sensing, task allocation is a crucial research problem that embodies a tradeoff between sensing quality and cost. An organizer usually publishes and manages multiple tasks utilizing one shared budget. Allocating multiple tasks to participants, with the objective of maximizing the overall data quality under the shared budget constraint, is an emerging and important research problem. We propose a fine-grained multitask allocation framework (MTPS), which assigns a subset of tasks to each participant in each cycle. Specifically, considering the user burden of switching among varying sensing tasks, MTPS operates on an attention-compensated incentive model where, in addition to the …


A Hypothesis Testing Approach For Topology Error Detection In Power Grids, Wei Biao Wu, Maggie X. Cheng, Bei Gou Dec 2016

A Hypothesis Testing Approach For Topology Error Detection In Power Grids, Wei Biao Wu, Maggie X. Cheng, Bei Gou

Computer Science Faculty Research & Creative Works

When the grid topology is changed due to incidents and the state estimator is not updated with the topological change, it is considered a topology error. In this paper, we develop a new method for detecting topology errors in power grids. The proposed method considers the measurement data as a nonstationary Gaussian process, explores the dependence structure of the underlying process. It detects errors by testing the hypothesis of whether the mean vector of a nonstationary Gaussian process is zero and does not rely on the convergence of the standard weighted least-squares (WLS) state estimation algorithm. It is very effective …