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2012

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Articles 991 - 1020 of 1947

Full-Text Articles in Computer Sciences

Check Image Processing: Webp Conversion And Micr Scan Android Application, Trevor Bliss Apr 2012

Check Image Processing: Webp Conversion And Micr Scan Android Application, Trevor Bliss

Computer Engineering

As more users favor smartphones over computers for simple tasks, small businesses are constantly exploring mobile options to present to their customers. This write-up documents an Android application designed for a small company, which allows users to send pictures of checks to the company’s servers for processing. The picture is taken with the devices built-in camera and is converted to Google’s new image format, WebP. The company’s server processes the check and returns the check’s MICR code as a response. This application leverages the Android NDK and JNI to use Google’s open source image conversion libraries as well as socket …


Failure Prediction For High-Performance Computing Systems, Narate Taerat Apr 2012

Failure Prediction For High-Performance Computing Systems, Narate Taerat

Doctoral Dissertations

The failure rate in high-performance computing (HPC) systems continues to escalate as the number of components in these systems increases. This affects the scalability and the performance of parallel applications in large-scale HPC systems. Fault tolerance (FT) mechanisms help mitigating the impact of failures on parallel applications. However, utilizing such mechanisms requires additional overhead. Besides, the overuse of FT mechanisms results in unnecessarily large overhead in the parallel applications. Knowing when and where failures will occur can greatly reduce the excessive overhead. As such, failure prediction is critical in order to effectively utilize FT mechanisms. In addition, it also helps …


Setting Up A Low-Cost Lab Management System For A Multi-Purpose Computing Laboratory Using Virtualisation Technology, Heng Ngee Mok, Wee Kiat Tan Apr 2012

Setting Up A Low-Cost Lab Management System For A Multi-Purpose Computing Laboratory Using Virtualisation Technology, Heng Ngee Mok, Wee Kiat Tan

Research Collection School Of Computing and Information Systems

This paper describes how a generic computer laboratory equipped with 52 workstations is set up for teaching IT-related courses and other general purpose usage. The authors have successfully constructed a lab management system based on decentralised, client-side software virtualisation technology using Linux and free software tools from VMware that fulfils the requirements of fast "switch over" time between consecutive lab sessions, the ability to support a wide range of IT courses and usage scenarios, low cost, easy maintenance, and a sandboxed environment for potentially disruptive IT security lab exercises. Sufficient implementation details are provided so that readers can build a …


Exploring The Components Of Dynamic Modeling Techniques, Charles Daniel Turnitsa Apr 2012

Exploring The Components Of Dynamic Modeling Techniques, Charles Daniel Turnitsa

Computational Modeling & Simulation Engineering Theses & Dissertations

Upon defining the terms modeling and simulation, it becomes apparent that there is a wide variety of different models, using different techniques, appropriate for different levels of representation for any one system to be modeled. Selecting an appropriate conceptual modeling technique from those available is an open question for the practitioner. Existing methods for describing techniques do not capture enough information about the expressive potential of those techniques such that an appropriate selection decision can be made. A formal method to describe conceptual modeling techniques that captures enough about the technique to distinguish it from others is identified as a …


Health Nexus: A Serious Game Prototype For Prevention And Treatment Of Obesity And Diabetes, Joseph C. Miller Apr 2012

Health Nexus: A Serious Game Prototype For Prevention And Treatment Of Obesity And Diabetes, Joseph C. Miller

Computational Modeling & Simulation Engineering Theses & Dissertations

Electronic games are a prevalent phenomenon of American culture and entertainment. Serious games are video games that take advantage of games' intrinsic entertaining and challenging characteristics for serious purposes, such as education, training, advertisement, and political campaigns. A significant number of serious games have been developed for a variety of diverse purposes. The last few years have witnessed the inception and growth of motion sensing technologies for games, including Nintendo Wii, Sony PlayStation Move, and Microsoft Kinect. These motion sensing technologies usually require game players' physical body movement in order to perform and achieve in the games, such as playing …


Image-Guided Robotic Dental Implantation With Natural-Root-Formed Implants, Xiaoyan Sun Apr 2012

Image-Guided Robotic Dental Implantation With Natural-Root-Formed Implants, Xiaoyan Sun

Electrical & Computer Engineering Theses & Dissertations

Dental implantation is now recognized as the standard of the care for tooth replacement. Although many studies show high short term survival rates greater than 95%, long term studies (> 5 years) have shown success rates as low as 41.9%. Reasons affecting the long term success rates might include surgical factors such as limited accuracy of implant placement, lack of spacing controls, and overheating during the placement.

In this dissertation, a comprehensive solution for improving the outcome of current dental implantation is presented, which includes computer-aided preoperative planning for better visualization of patient-specific information and automated robotic site-preparation for superior …


Access Control Realities As Observed In A Clinical Medical Setting, Sara Sinclair, Sean Smith Apr 2012

Access Control Realities As Observed In A Clinical Medical Setting, Sara Sinclair, Sean Smith

Computer Science Technical Reports

Effective computer security requires looking not just at technology, but also at how it meshes with users in the real-world enterprises depending on it. As part of a longer-term series of projects, we have been looking at these issues-- particularly access control-- in a variety of real-world enterprises. In previous work, we looked at companies in the finance and software industries; this paper reports on a study of a hospital's access control systems. Both studies employ ethnographic methods to elicit observations on the failures of current access control technologies in large, dynamic organizations; participants in the corporate study were largely …


Access Control Hygiene And The Empathy Gap In Medical It, Yifei Wang, Sean Smith, Andrew Gettinger Apr 2012

Access Control Hygiene And The Empathy Gap In Medical It, Yifei Wang, Sean Smith, Andrew Gettinger

Computer Science Technical Reports

In theory, access control is a solved problem. In practice, large real-world enterprises still report trouble: de facto policy becomes unmanageable; users circumvent controls. These issues can be particularly critical in medical IT, such as emerging EMR and EHR, where access control errors can have serious repercussions. In this paper, we investigate how real-world EMR users think about access control when they are making policy decisions in the abstract---and when they are actually using the system in treatment scenarios. Mismatches suggest places ("empathy gaps") where new policy tools may be needed.


Software Engineering For The Mobile Application Market, Jacob Schwartz Apr 2012

Software Engineering For The Mobile Application Market, Jacob Schwartz

Honors Theses and Capstones

One of the goals of the current United States government is to lower healthcare costs. One of the solutions is to alter the behavior of the population to be more physically active and to eat healthier. This project will focus on the latter solution by writing applications for the Android and iOS mobile platforms that will allow a user to monitor their dietary intake to see and correct patterns in their eating behavior.


Asynchronous Ultrasonic Trilateration For Indoor Positioning Of Mobile Phones, Viacheslav Filonenko, Charlie Cullen, James Carswell Apr 2012

Asynchronous Ultrasonic Trilateration For Indoor Positioning Of Mobile Phones, Viacheslav Filonenko, Charlie Cullen, James Carswell

Conference papers

In this paper we discuss how the innate ability of mobile phone speakers to produce ultrasound can be used for accurate indoor positioning. The frequencies in question are in a range between 20 and 22 KHz, which is high enough to be inaudible by humans but still low enough to be generated by today’s mobile phone sound hardware. Our tests indicate that it is possible to generate the given range of frequencies without significant distortions, provided the signal volume is not turned excessively high. In this paper we present and evaluate the accuracy of our asynchronous trilateration method (Lok8) for …


Effects Of Variations In 3d Spatial Search Techniques On Mobile Query Speed Vs Accuracy, Junjun Yin, James Carswell Apr 2012

Effects Of Variations In 3d Spatial Search Techniques On Mobile Query Speed Vs Accuracy, Junjun Yin, James Carswell

Conference papers

This paper presents three Spatial Search Algorithms for determiningthe three dimensional visibility shape (threat dome) at a user’s current locationin a built environment. Users then utilize this 3D shape as their query“window” to retrieve information on only those objects visible within a spatialdatabase. Visibility shape searching addresses the information overloadproblem by providing “Hidden Query Removal” functionality for mobile LBS.This functionality will be especially useful in the Web 4.0 era when trillions ofmicro-sensors become available for query through standard IP access.


Teaching Computers To Think: Analysis Of Artificial Intelligence And Connect Four, Kirk Baly, Andrew Freeman, Andrew Jarratt, Kyle Kling, Owen Prough Apr 2012

Teaching Computers To Think: Analysis Of Artificial Intelligence And Connect Four, Kirk Baly, Andrew Freeman, Andrew Jarratt, Kyle Kling, Owen Prough

Symposium on Research and Creative Expression (SORCE)

Connect Four is a classic two person, zero-sum game in which players utilize their wits and gravity to connect four of their own pieces in a horizontal, vertical, or diagonal row while blocking their opponent’s attempt to do the same. We have constructed a simulation of this game which we have used as a base for the implementation and testing of varying Artificial Intelligence (AI) systems. Early strategies worked according to simple strategic methods, while more advanced heuristics employed a Min-Max Tree in tandem with methods to determine how advantageous a certain board would be. This Min-Max Tree goes beyond …


Equitable Labelings Of Caterpillar Graphs, Mark Burek, William Olson, Brock Taulbee Apr 2012

Equitable Labelings Of Caterpillar Graphs, Mark Burek, William Olson, Brock Taulbee

Symposium on Research and Creative Expression (SORCE)

The Graceful Tree Conjecture in graph theory has been open for almost half a century. The conjecture states that the vertices of any tree can be labeled with distinct integers between 0 and the number of edges of the tree in a way that the edges can be uniquely identified by the absolute value of the difference between their vertex labels. One possible approach to prove the conjecture is to prove the more general k-equitable tree conjecture. In a k-equitable labeling we assign integers from the set {0,1,2,…,k-1} to the vertices. Each edge will receive a label that is the …


Access Controls In Relational Databases, Rebekah Broome Apr 2012

Access Controls In Relational Databases, Rebekah Broome

Senior Seminars

There are many companies of all sizes that use databases to keep their data organized and easy to access. Databases have multiple parts, such as domains and constraints, Database Management System, and Metadata that make them unique. Not only does this paper cover the elements of a database but more specifically the elements of relational databases. This paper will go over the definition of relation databases, what makes this kind of database unique with the relation between tables, and how Standard Query Language is used by relational database. Then the paper will move on to the access controls that are …


Ceg 221-01: Advanced C For Engineers, Jay Dejongh Apr 2012

Ceg 221-01: Advanced C For Engineers, Jay Dejongh

Computer Science & Engineering Syllabi

This course introduces advanced constructs, algorithms, and data structures in the C programming language. Emphasis is on problem solving and techniques useful to engineers. Topics include functions, array, pointers, structures as well as sorting algorithms, linked lists, complex numbers, stacks, queues, hash tables, and binary trees. 4 credit hours. Prerequisite: CEG220 (Introduction to C Programming for Engineers).


Ceg 355-01: Introduction To The Design Of Information Technology Systems, Thomas C. Hartrum Apr 2012

Ceg 355-01: Introduction To The Design Of Information Technology Systems, Thomas C. Hartrum

Computer Science & Engineering Syllabi

Introduction to the design of information systems comprising modern technologies such as SQL database programming, networks, and distributed computing with CORBA, electronic and hypertext (HTML) documents, and multimedia.


Ceg 460/660-01: Introduction To Software Computer Engineering, Nikolaos Bourbakis Apr 2012

Ceg 460/660-01: Introduction To Software Computer Engineering, Nikolaos Bourbakis

Computer Science & Engineering Syllabi

This course is concerned with the techniques of designing and constructing large programs. Some of the required basic concepts necessarily have to be developed using small programs as examples. To this extent, we also study programming-in-the-small. The overall objectives are to present an overview of issues in the development of software, to discuss terminology, to illustrate via example case studies, and to give sufficiently detailed advice on how to develop quality software and present a way of communication via UML. Hands-on experience is emphasized through the use of homework and a class project.


Ceg 479/679-01: Computer Animation, Thomas Wischgoll Apr 2012

Ceg 479/679-01: Computer Animation, Thomas Wischgoll

Computer Science & Engineering Syllabi

No abstract provided.


Ceg 702-01: Advanced Communication Networks, Bin Wang Apr 2012

Ceg 702-01: Advanced Communication Networks, Bin Wang

Computer Science & Engineering Syllabi

No abstract provided.


Ceg 260-01: Digital Computer Hardware/Switching Circuits, Meilin Liu Apr 2012

Ceg 260-01: Digital Computer Hardware/Switching Circuits, Meilin Liu

Computer Science & Engineering Syllabi

We will discuss and cover basic digital, combinational and sequential logic systems. Labs will be used to gain valuable practical experience in implementing elementary circuits and logic designs.


Ceg 2350: Os Concepts And Usage, Richard Van Hook Apr 2012

Ceg 2350: Os Concepts And Usage, Richard Van Hook

Computer Science & Engineering Syllabi

Provides introduction to Linux and Windows operating systems and system administration. Covers files and directories, ownership and sharing, programs and processes, system calls, libraries, dynamic linking, command line shells, scripting, regular expressions and secure network protocols.


Ceg 360/560-01: Digital System Design, Travis E. Doom Apr 2012

Ceg 360/560-01: Digital System Design, Travis E. Doom

Computer Science & Engineering Syllabi

Design of digital systems. Topics include flip-flops, registers, counters, programmable logic devices, memory devices, register-level design, and microcomputer system organization. Students must show competency in the design of digital systems. 3 hours lecture, 2 hours lab. Prerequisite: CEG 260.


Ceg 463/663-01: The Personal Software Development Process, John A. Reisner Apr 2012

Ceg 463/663-01: The Personal Software Development Process, John A. Reisner

Computer Science & Engineering Syllabi

In this course, you will learn about more about one particular way to address some of the challenges and issues associated with successful software development. Specifically, you will learn about (and use) the Personal Software Process (PSP), designed to help individual software practitioners become more adept at their craft through the use of project planning, project tracking, defect analysis, review and verification activities, software measurement, and process management. This course--and the PSP-are somewhat unique in that they aim to help software engineers become more successful, not by examining issues associated with large-scale development (as is the case with many software …


Cs 740: Complexity Theory And Algorithm Analysis, Pascal Hitzler Apr 2012

Cs 740: Complexity Theory And Algorithm Analysis, Pascal Hitzler

Computer Science & Engineering Syllabi

What does it mean to say that some computational problem is intrinsically more difficult than some other problem? How can I claim that I have found a good algorithmic solution? The study of these questions gives rise to an area of Theoretical Computer Science called Complexity Theory, which is based on a systematic and thorough formal study of the complexity of problems with respect to their algorithmic solvability, using Turing machines as main conceptual tool. In this class, we will understand how problem and algorithm complexity is measured, and discuss some of the main complexity classes arising from this study. …


Cs 141: Computer Programming I, Vanessa Starkey Apr 2012

Cs 141: Computer Programming I, Vanessa Starkey

Computer Science & Engineering Syllabi

Introduction to use of computers as a problem-solving tool. Examples from and applications to a broad range of problems. Methodology for algorithm design and for structured modular implementation is stressed. Three hours lecture, two hours lab.


Cs 205: Introduction To Computers And Office Productivity Software, Terri Bauer Apr 2012

Cs 205: 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 214-01: Visual Basic Programming, Radar Pangaean Apr 2012

Cs 214-01: Visual Basic Programming, Radar Pangaean

Computer Science & Engineering Syllabi

This course will teach the fundamentals of object oriented programming using Visual BASIC to solve simple to medium complexity programming problems. The course will cover: algorithms, VB’s data types, coding standards, decision and looping constructs, arrays and structures, functions and procedures, file I/O, the standard GUI elements supported by Visual BASIC, and custom classes. Students will use texts and reference materials while coding. No previous programming experience is required. Basic algebra and computer skills are required.


Cs 241: Computer Programming - Ii, Michael Ondrasek Apr 2012

Cs 241: Computer Programming - Ii, Michael Ondrasek

Computer Science & Engineering Syllabi

The CS 241 course is a continuation of CS 240. The emphasis in CS 241 is on solving more complex problems using object oriented programming. Prerequisite: CS240. Students must register for both lecture and one laboratory section. 4 credit hours.


Cs 205-07: Introduction To Computers And Office Productivity Software, John P. Herzog Apr 2012

Cs 205-07: Introduction To Computers And Office Productivity Software, John P. Herzog

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 701: Database Systems And Design I, Guozhu Dong Apr 2012

Cs 701: Database Systems And Design I, Guozhu Dong

Computer Science & Engineering Syllabi

An introduction to database design, database system implementation issues and techniques, and advanced data models and concepts.