Digital Commons Network^™

Learning Multiple Languages In Groups, Sanjay Jain, Efim Kinber

School of Computer Science & Engineering Faculty Publications

We consider a variant of Gold’s learning paradigm where a learner receives as input different languages (in the form of one text where all input languages are interleaved). Our goal is to explore the situation when a more “coarse” classification of input languages is possible, whereas more refined classification is not. More specifically, we answer the following question: under which conditions, a learner, being fed different languages, can produce grammars covering all input languages, but cannot produce grammars covering input languages for any . We also consider a variant of this task, where each of the output grammars may not …

Assessment Of Accuracy And Repeatability Of Verbal Exertion Estimation In The Presence Of Fatigue, Matthew Klosner

Theses

Occupational ergonomics has long focused on physical exertion as a key to the prevention of musculoskeletal injuries. Traditionally, objective measurements of forceful exertion such as electromyography (EMG) and direct force measurement have been used to assess exposure to forceful exertion. However, these measurements are often not practical for occupational settings due to their cumbersome and costly nature. As a result, psychophysical magnitude estimation may be used, in which human subjects verbally estimate the magnitude of an exertion. Despite an abundance of research on verbal estimation, its repeatability and the effects of fatigue on estimation accuracy have not been sufficiently assessed. …

Machine-Assisted Proof Support For Validation Beyond Simulink, Chunqing Chen, Jin Song Dong, Jun Sun

Research Collection School Of Computing and Information Systems

Simulink is popular in industry for modeling and simulating embedded systems. It is deficient to handle requirements of high-level assurance and timing analysis. Previously, we showed the idea of applying Timed Interval Calculus (TIC) to complement Simulink. In this paper, we develop machine-assisted proof support for Simulink models represented in TIC. The work is based on a generic theorem prover, Prototype Verification System (PVS). The TIC specifications of both Simulink models and requirements are transformed to PVS specifications automatically. Verification can be carried out at interval level with a high level of automation. Analysis of continuous and discrete behaviors is …

Modeling Semantics In Composite Web Service Requests By Utility Elicitation, Qianhui Althea Liang, Jen Yao Chung, Steven M. Miller

Research Collection School Of Computing and Information Systems

When meeting the challenges in automatic and semi-automatic Web service composition, capturing the user’s service demand and preferences is as important as knowing what the services can do. This paper discusses the idea of semantic service requests for composite services, and presents a multi-attribute utility theory (MAUT) based model of composite service requests. Service requests are modeled as user preferences and constraints. Two preference structures, additive independence and generalized additive independence, are utilized in calculating the expected utilities of service composition outcomes. The model is also based on an iterative and incremental scheme meant to better capture requirements in accordance …

Measuring Article Quality In Wikipedia: Models And Evaluation, Meiqun Hu, Ee Peng Lim, Aixin Sun, Hady W. Lauw, Ba-Quy Vuong

Research Collection School Of Computing and Information Systems

Wikipedia has grown to be the world largest and busiest free encyclopedia, in which articles are collaboratively written and maintained by volunteers online. Despite its success as a means of knowledge sharing and collaboration, the public has never stopped criticizing the quality of Wikipedia articles edited by non-experts and inexperienced contributors. In this paper, we investigate the problem of assessing the quality of articles in collaborative authoring of Wikipedia. We propose three article quality measurement models that make use of the interaction data between articles and their contributors derived from the article edit history. Our Basic model is designed based …

An Information-Sharing Based Anti-Phishing System, Yueqing Cheng, Zhen Yuan, Lei Ma, Robert H. Deng

Research Collection School Of Computing and Information Systems

This paper presents the design of an informationsharing based or server-assisted anti-phishing system. The system follows a client-server architecture and makes decision based on not only client side heuristics but also collective information from multiple clients. When visiting a web site, a client side proxy, installed as a plug-in to a browser, decides on the legitimacy of the web site based on a combination of white list, black list and heuristics. In case the client side proxy does not have sufficient information to make a clear judgment, it reports the suspicious site to a central server which has access to …

Fecal Microbe Distribution And Abundance Used As A Possible Proxy For Nutrient Source Identification In Eutrophic Wilgreen Lake, Madison County, Kentucky, Theresa A. Aguiar, Walter S. Borowski

EKU Faculty and Staff Scholarship

Wilgreen Lake is a eutrophic lake that has been listed on the EPA’s 303d list as nutrient impaired. Potential sources of this impairment are from humans, cattle manure and fertilizers. We suspect that the majority of nutrients originate from human sources. As a possible proxy for nutrient input, we test our hypothesis by examining fecal microbe distribution and abundance in the lake.

We took water samples at 19 sampling locations on 4 occasions. Sampling spanned 26 June to 15 August with the last 3 sampling events occurring at roughly two-week intervals. These samples were then processed using IDEXX methods, which …

Important Characteristics Of Software Development Team Members: An Empirical Investigation Using Repertory Grid, Keng Siau, Xin Tan, Hong Sheng

Research Collection School Of Computing and Information Systems

An information system is typically developed by a team of information systems (IS) professionals. Research shows that teams staffed with the right people are more likely to be effective and efficient. There is a paucity of study that examines the important traits of IS professionals in team contexts. The objective of this research is to identify and understand the important characteristics of good team members in software development projects. We applied an established psychological technique (Repertory Grid) to guide our interviews with 21 experienced IS professionals, who have had extensive experience in software development teams. The comprehensive list of important …

Important Characteristics Of Software Development Team Members: An Empirical Investigation Using Repertory Grid, Keng Siau, Xin Tan, Hong Sheng

Research Collection School Of Computing and Information Systems

An information system is typically developed by a team of information systems (IS) professionals. Research shows that teams staffed with the right people are more likely to be effective and efficient. There is a paucity of study that examines the important traits of IS professionals in team contexts. The objective of this research is to identify and understand the important characteristics of good team members in software development projects. We applied an established psychological technique (Repertory Grid) to guide our interviews with 21 experienced IS professionals, who have had extensive experience in software development teams. The comprehensive list of important …

The Price Of Stability In Selfish Scheduling Games, Lucas Agussurja, Hoong Chuin Lau

Research Collection School Of Computing and Information Systems

Game theory has gained popularity as an approach to analysing and understanding distributed systems with selfinterested agents. Central to game theory is the concept of Nash equilibrium as a stable state (solution) of the system, which comes with a price - the loss in efficiency. The quantification of the efficiency loss is one of the main research concerns. In this paper, we study the quality and computational characteristic of the best Nash equilibrium in two selfish scheduling models: the congestion model and the sequencing model. In particular, we present the following results: (1) In the congestion model: first, the best …

Advances And Challenges With Data Broadcasting In Wireless Mesh Networks, Chun Tung Chou, Junaid Qadir, Joo Ghee Lim, Archan Misra

Research Collection School Of Computing and Information Systems

Wireless mesh networks have become a promising means to provide low-cost broadband access. Many WMN applications require broadcasting data (IPTV etc.) over the WMN. This article studies how efficient data broadcast, measured in terms of broadcast latency, can be realized by exploiting two features of WMNs: the use of multiple transmission rates at the link layer and the use of multiple radio interfaces on each node. We demonstrate that by exploiting these features, broadcast latency can be reduced severalfold compared to the current default practice in wireless LANs of using the lowest transmission rate for broadcast traffic. We also discuss …

Lsuhsc Facilities Biweekly Update: November 2007, Lsuhsc Property And Facilities Management

LSUHSC Facilities Biweekly Updates: 2007

LSUHSC Facilities Biweekly Updates from November 9 and 26, 2006.

These updates describe damage and a timeline of repairs at the LSU Health Sciences Center - New Orleans campus due to Hurricane Katrina which made landfall August 29, 2005.

Lsuhsc Facilities Daily Update: November 2007, Lsuhsc Property And Facilities Management

LSUHSC Facilities Daily Updates: 2007

LSUHSC Facilities Daily Updates from November 2007.

These updates describe damage and a timeline of repairs at the LSU Health Sciences Center - New Orleans campus due to Hurricane Katrina which made landfall August 29, 2005.

Blinking On The Bench: How Judges Decide Cases, Chris Guthrie, Jeffrey J. Rachlinski

Vanderbilt Law School Faculty Publications

How do judges judge? Do they apply law to facts in a mechanical and deliberative way, as the formalists suggest they do, or do they rely on hunches and gut feelings, as the realists maintain? Debate has raged for decades, but researchers have offered little hard evidence in support of either model. Relying on empirical studies of judicial reasoning and decision making, we propose an entirely new model of judging that provides a more accurate explanation of judicial behavior. Our model accounts for the tendency of the human brain to make automatic, snap judgments, which are surprisingly accurate, but which …

The Structure Of Search Engine Law, James Grimmelmann

Cornell Law Faculty Publications

Search engines are the new linchpins of the Internet, and a new body of law - search engine law - will increasingly determine the shape of the Internet. Making sensible search policy requires a clear understanding of how search works, what interests are at stake, and what legal questions intersect at search. This article offers the first comprehensive overview of search engine law, which it organizes into a systematic taxonomy. It then demonstrates the dense legal interrelationships created by search by discussing a series of important themes in search engine law, each of which cuts across many doctrinal areas.

Pregnancy Outcome In Primiparae Of Advanced Maternal Age, Ilse Delbaere, Hans Verstraelen, Sylvie Goetgeluk, Guy Martens, Guy De Backer, Marleen Temmerman

Obstetrics and Gynaecology, East Africa

Objective: To investigate the impact of maternal age on singleton pregnancy outcome, taking into account intermediate and confounding factors.

Study design: In this population-based retrospective cohort study, perinatal data of primiparous women aged 35 years or more ( n = 2970), giving birth to a singleton child of at least 500 g, were compared to data of primiparous women aged 25–29 years old ( n = 23,921). Univariate analysis was used to assess the effect of maternal age on pregnancy outcomes. The effects of intermediate (hypertension, diabetes and assisted conception) and confounding factors (level of education) were assessed through multivariable …

Reimagining And Redefining The Dream: A Proposal For Impriving Access To Higher Education For Undocumented Immigrants, Koko Ye Huang

Seattle Journal for Social Justice

No abstract provided.

Manipulative Behavior In Auction Ipos, Mira Ganor

DePaul Business & Commercial Law Journal

No abstract provided.

Lanthorn, Vol. 42, No. 21, November 1, 2007, Grand Valley State University

Volume 42, July 12, 2007 - June 12, 2008

Lanthorn is Grand Valley State's student newspaper, published from 1968 to the present.

Reality Check: How Practical Circumstances Affect The Interpretation Of Depraved Indifference Murder, John C. Duffy

Duke Law Journal

This Note examines the treatment of depraved indifference murder across the thirty-six states that include the concept in their criminal codes. The Note identifies the broad range of practical circumstances that shape the development of depraved indifference murder statutes, and argues that it is not possible to develop a single interpretation that will function effectively across all jurisdictions. Finally, this Note identifies the three most important practical circumstances that affect the development of depraved indifference murder statutes.

Problem Solving And Proving Via Generalisation, Michael De Villiers, Mary Garner

Faculty Articles

No abstract provided.

The Spin Axes Orbital Alignment Of Both Stars Within The Eclipsing Binary System V1143 Cyg Using The Rossiter-Mclaughlin Effect, S. Albrecht, S. Reffert, I. Snellen, A. Quirrenbach, D. S. Mitchell

Physics

Context. The Rossiter-McLaughlin (RM) effect, a rotational effect in eclipsing systems, provides unique insight into the relative orientation of stellar spin axes and orbital axes of eclipsing binary systems.

Aims. Our aim is to develop a robust method to analyze the RM effect in an eclipsing system with two nearly equally bright components. This gives access to the orientation of the stellar rotation axes and may shed light on questions of binary formation and evolution. For example, a misalignment between the spin axes and the angular momentum of the system could bring the observed and theoretical apsidal motion into better …

On Enumeration Of Conjugacy Classes Of Coxeter Elements, Matthew Macauley, Henning S. Mortveit

Publications

In this paper we study the equivalence relation on the set of acyclic orientations of a graph Y that arises through source-to-sink conversions. This source-to-sink conversion encodes, e.g. conjugation of Coxeter elements of a Coxeter group. We give a direct proof of a recursion for the number of equivalence classes of this relation for an arbitrary graph Y using edge deletion and edge contraction of non-bridge edges. We conclude by showing how this result may also be obtained through an evaluation of the Tutte polynomial as T (Y, 1, 0), and we provide bijections to two other classes of acyclic …

An Examination Of The Bystander Effect In Multiple Models: From Cell Line To In-Vivo Exposure, Alice Vines

Doctoral

In recent years there has been a paradigm shift in radiobiology, to one which induces non-targeted effects, such as the bystander effect and genomic instability. The bystander effect has been defined as effects seen in cells that although never exposed to radiation, display similar effects to those that have, due to some form of communication with directly hit cells. This investigation aims to further the current understanding of this effect using three different models, cell lines, primary explant cultures and whole animals. Multiple cell lines were used to determine the relative importance of bystander signal production versus the response in …

Development Of A Ground Truth Simulator And Application Of A Generalized Multiple-Model Adaptive Estimation Approach To Tune A State Estimation Filter, Kevin Wyffels

Theses

In this thesis, a maritime scenario simulator is developed and a data processing/filtering algorithm is applied to estimate the ground truth of the simulated scenario from noisy measurements and system model for the Hierarchical High Level Information Fusion Technologies (H2LIFT) project. H2LIFT is an adaptable information fusion frame- work which takes as input Levels 0/1 (local) data and performs fusion at Levels two and three (distributed, and network centric) hierarchically, in different stages, to provide real- time situational/impact assessment efficiently while avoiding the overload of information to the human decision maker. First, a simulator is developed that imitates a naval …

Rfid-Assisted Wireless Sensor Networks For Cardiac Tele-Healthcare, Laura J. Celentano

Theses

As the baby boomers head into old age, America will see a dramatic increase in the number of elderly patients admitted to healthcare facilities, such as nursing homes. Due to this rising elderly population, it will be difficult for nursing home personnel to monitor all patients at once. One way to cut down on the amount of supervision by the staff is for patients to administer their own medication. This leads to new problems though, as a patient incorrectly administering one of their many medications could lead to a disastrous end. Technology to wirelessly transmit a patient’s electrocardiogram (ECG) has …

Spectrum, November 1, 2007, Sacred Heart University

Newspapers (Obelisk & Spectrum)

Highlights include: University hosts parents weekend -- Bridgeport leaders discuss thoughts about health care -- Cemera hosts informational meeting about Chapel updates-- Tibetan monk discusses importance of meditation -- College of business named highly in Princeton Review -- Spring 'breaks' out early in November -- ‘Saw IV’ holds box office hostage -- Blackout for Britney -- Sopranos’ creator speaks on leaving viewers in the dark -- Men’s cross-country records best ever NEC finish

Integrated Approach To The Toxicity Evaluation Of Irish Marine Sediments: Exotoxicological Assessment, Ailbhe Macken

Doctoral

The quality of sediment in any aquatic ecosystem is vital to the health of that system. Sediments have been recognised as a major repository for persistent toxic substances. If sediments become sufficiently polluted they can lead to the disruption of surrounding natural biological communities. Therefore the monitoring of sediment quality is essential for successful ecosystem functioning in the marine environment. The aim of the present study was to employ an integrated approach of the toxicity evaluation of Irish marine sediments by correlating results of biotests with chemical analysis. Between 2004 and 2006 the Radiation and Environmental Science Centre (RESC) participate …

Designing The Market Game For A Commodity Trading Simulation, Shih-Fen Cheng

Research Collection School Of Computing and Information Systems

In this paper, we propose to design a market game that (a) can be used in modeling and studying commodity trading scenarios, and (b) can be used in capturing human traders' behaviors. Specifically, we demonstrate the usefulness of this commodity trading game in a single-commodity futures trading scenario. A pilot experiment was run with a mixture of human traders and an autonomous agent that emulates the aggregatedmarket condition, with the assumption that this autonomous agent would hint each of its action through a public announcement. We show that the information collected from this simulation can be used to extract the …

Context-Aware Statistical Debugging: From Bug Predictors To Faulty Control Flow Paths, Lingxiao Jiang, Zhendong Su

Research Collection School Of Computing and Information Systems

Effective bug localization is important for realizing automated debugging. One attractive approach is to apply statistical techniques on a collection of evaluation profiles of program properties to help localize bugs. Previous research has proposed various specialized techniques to isolate certain program predicates as bug predictors. However, because many bugs may not be directly associated with these predicates, these techniques are often ineffective in localizing bugs. Relevant control flow paths that may contain bug locations are more informative than stand-alone predicates for discovering and understanding bugs. In this paper, we propose an approach to automatically generate such faulty control flow paths …