Open Access. Powered by Scholars. Published by Universities.®

Computer Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 30 of 42

Full-Text Articles in Computer Engineering

Transportation Safety Performance Of Us Bus Transit Agencies And Population Density: A Cross-Sectional Analysis (2008-2014), Ilker Karaca, Peter T. Savolainen Jul 2019

Transportation Safety Performance Of Us Bus Transit Agencies And Population Density: A Cross-Sectional Analysis (2008-2014), Ilker Karaca, Peter T. Savolainen

Ilker Karaca

The paper examines the transportation safety performance of transit agencies providing public bus service in the US by using data from the National Transit Database (NTD)

Uses NTD data for a seven-year period from 2008 to 2014 • 3,853 observations for 651 public transportation agencies in 50 states

Seven types of bus transit fatalities and injuries (including passengers, operators, pedestrians, bicyclists)

Main explanatory variable: urban density obtained from the US Census figures

Other explanatory variables: total agency revenue miles, unlinked passenger trips, agency fleet size, and urban population


Top-Down Construction Cost Estimating Model Using An Artificial Neural Network, Douglas D. Gransberg, H. David Jeong, Ilker Karaca, Brendon Gardner Jun 2019

Top-Down Construction Cost Estimating Model Using An Artificial Neural Network, Douglas D. Gransberg, H. David Jeong, Ilker Karaca, Brendon Gardner

Ilker Karaca

This report contains the information and background on top-down cost estimating using artificial neural networks (ANN)_to enhance the accuracy of MDT early estimates of construction costs. Upon conducting an extensive review of MDT’s budgeting and cost estimating efforts, and following a survey of agency experts on the identification of the most salient project attributes with the dual-objectives of low effort and high accuracy, a rational method for top-down variable selection is proposed. Selected variables were further tested in their explanatory power of construction costs through the application of two cost estimating methodologies—multiple regression and artificial neural network methodologies. Both methods …


Aviation Cybersecurity: An Overview, Gary C. Kessler, J. Philip Craiger Jan 2019

Aviation Cybersecurity: An Overview, Gary C. Kessler, J. Philip Craiger

J. Philip Craiger, Ph.D.

Information security—aka cybersecurity—is the most rapidly growing threat to critical infrastructures, including the aviation industry. Due to the plethora of digital devices, ubiquity of the Internet and other networks, and the rapid growth in the adoption of technology, everyone is an information system security manager. Every professional in the aviation and aeronautics industry use computers, mobile devices, tablets, GPS devices, and/or other hardware on a daily basis, as well as go online for a variety of reasons.

Attacks on information have been ongoing since the inception of the industry a hundred years ago, in such forms as intellectual property theft …


Ransomware In Healthcare Facilities: The Future Is Now, Nikki Spence, David P. Paul Iii, Alberto Coustasse Nov 2017

Ransomware In Healthcare Facilities: The Future Is Now, Nikki Spence, David P. Paul Iii, Alberto Coustasse

Alberto Coustasse, DrPH, MD, MBA, MPH

Cybercriminals have begun to target the healthcare industry with a type of malware called ransomware, malware that encrypts an infected device and any attached devices or network drives. After encryption, cybercriminals demand a sum of money, also known as a “ransom,” to release the devices from encryption. Without adequate disaster recovery and backup plans, many businesses are forced to pay the ransom. The purpose of this study was to determine the extent of recent ransomware infections in healthcare settings, the risk liabilities and cost associated with such infections, and to determine possible risk mitigation tactics. Financial costs associated with business …


Mobile Devices: The Case For Cyber Security Hardened Systems, Maurice Dawson, Jorja Wright, Marwan Omar Dec 2015

Mobile Devices: The Case For Cyber Security Hardened Systems, Maurice Dawson, Jorja Wright, Marwan Omar

Maurice Dawson

Mobile devices are becoming a method to provide an efficient and convenient way to access, find and share information; however, the availability of this information has caused an increase in cyber attacks. Currently, cyber threats range from Trojans and viruses to botnets and toolkits. Presently, 96% of mobile devices do not have pre-installed security software while approximately 65% of the vulnerabilities are found within the application layer. This lack in security and policy driven systems is an opportunity for malicious cyber attackers to hack into the various popular devices. Traditional security software found in desktop computing platforms, such as firewalls, …


The Digital Dionysus: Nietzsche & The Network-Centric Condition Dec 2015

The Digital Dionysus: Nietzsche & The Network-Centric Condition

Dan Mellamphy

No abstract provided.


Institutional Maximization And Path Dependency – The Delay Of Implementation Of The Eu Public Sector Information Directive In Sweden, Jan Kallberg, Erik Lakomaa Mar 2015

Institutional Maximization And Path Dependency – The Delay Of Implementation Of The Eu Public Sector Information Directive In Sweden, Jan Kallberg, Erik Lakomaa

Jan Kallberg

The implementation of the EU public sector information (PSI) directive was expected to open up European governmental data sources for commercialization and create, conservatively estimated, a € 32 billion European public information market. Institutional arrangements and governmental path dependency has delayed the directive’s implementation in several countries, most notably Poland and Sweden. In this paper we use the Swedish case to examine how bureaucratic inertia and path dependence can stall the implementation of EU directives that conflicts with the member state’s internal bureaucratic agenda. Sweden usually implements EU directives rapidly and extensively. In the case of the PSI-directive however, the …


Mobile Devices: The Case For Cyber Security Hardened Systems, Maurice Dawson, Jorja Wright, Marwan Omar Dec 2014

Mobile Devices: The Case For Cyber Security Hardened Systems, Maurice Dawson, Jorja Wright, Marwan Omar

Maurice Dawson

Mobile devices are becoming a method to provide an efficient and convenient way to access, find and share information; however, the availability of this information has caused an increase in cyber attacks. Currently, cyber threats range from Trojans and viruses to botnets and toolkits. Presently, 96% of mobile devices do not have pre-installed security software while approximately 65% of the vulnerabilities are found within the application layer. This lack in security and policy driven systems is an opportunity for malicious cyber attackers to hack into the various popular devices. Traditional security software found in desktop computing platforms, such as firewalls, …


Advances In Technology Project Management: Review Of Open Source Software Integration, Maurice Dawson, Brian Leonard, Emad Rahim Dec 2014

Advances In Technology Project Management: Review Of Open Source Software Integration, Maurice Dawson, Brian Leonard, Emad Rahim

Maurice Dawson

As organizations must continually drive down costs of software-driven projects, they need to evaluate the Systems Development Life Cycle (SDLC) and other software-based design methodologies. These methodologies include looking at software-based alternatives that could save a significant amount of money by reducing the amount of proprietary software. This chapter explores the use and integration of Open Source Software (OSS) in software-driven projects to include in enterprise organizations. Additionally, the legalities of the GNU General Public License (GPL), Lesser General Public License (LGPL), Berkeley Software Distribution (BSD), and Creative Commons are explored with the integration of these OSS solutions into organizations. …


A Brief Review Of New Threats And Countermeasures In Digital Crime And Cyber Terrorism, Maurice Dawson Dec 2014

A Brief Review Of New Threats And Countermeasures In Digital Crime And Cyber Terrorism, Maurice Dawson

Maurice Dawson

Cyber security is becoming the cornerstone of national security policies in many countries around the world as it is an interest to many stakeholders, including utilities, regulators, energy markets, government entities, and even those that wish to exploit the cyber infrastructure. Cyber warfare is quickly becoming the method of warfare and the tool of military strategists. Additionally, it is has become a tool for governments to aid or exploit for their own personal benefits. For cyber terrorists there has been an overwhelmingly abundance of new tools and technologies available that have allowed criminal acts to occur virtually anywhere in the …


Understanding The Methods Behind Cyber Terrorism, Maurice E. Dawson Jr., Marwan Omar, Jonathan Abramson Dec 2014

Understanding The Methods Behind Cyber Terrorism, Maurice E. Dawson Jr., Marwan Omar, Jonathan Abramson

Maurice Dawson

Cyber security has become a matter of national, international, economic, and societal importance that affects multiple nations (Walker, 2012). Since the 1990s users have exploited vulnerabilities to gain access to networks for malicious purposes. In recent years the number of attacks on U.S. networks has continued to grow at an exponential rate. This includes malicious embedded code, exploitation of backdoors, and more. These attacks can be initiated from anywhere in the world from behind a computer with a masked Internet Protocol (IP) address. This type of warfare, cyber warfare, changes the landscape of war itself (Beidleman, 2009). This type of …


Advances In Technology Project Management: Review Of Open Source Software Integration, Maurice Dawson, Brian Leonard, Emad Rahim Dec 2014

Advances In Technology Project Management: Review Of Open Source Software Integration, Maurice Dawson, Brian Leonard, Emad Rahim

Maurice Dawson

As organizations must continually drive down costs of software-driven projects, they need to evaluate the Systems Development Life Cycle (SDLC) and other software-based design methodologies. These methodologies include looking at software-based alternatives that could save a significant amount of money by reducing the amount of proprietary software. This chapter explores the use and integration of Open Source Software (OSS) in software-driven projects to include in enterprise organizations. Additionally, the legalities of the GNU General Public License (GPL), Lesser General Public License (LGPL), Berkeley Software Distribution (BSD), and Creative Commons are explored with the integration of these OSS solutions into organizations. …


Understanding The Influence Of Blog On The Development Of Social Capital, Reza Vaezi, Gholamreza Torkzadeh, Jerry Cha-Jan Chang Jun 2014

Understanding The Influence Of Blog On The Development Of Social Capital, Reza Vaezi, Gholamreza Torkzadeh, Jerry Cha-Jan Chang

Reza Vaezi

The rapid use and application of blogs in diverse areas such as education, marketing, journalism, and human resource management in recent years underlines the need for a better understanding of the impact of this new technology on social capital. Social capital reflects the norm of reciprocity and the level of trust among individuals who connect, interact, and benefit from one another. Blog is expected to influence the extent and the scope of this interaction by providing new means of networking among people. This paper examines the relationship between blog use and social capital and reports on the results of an …


Teaching Evaluation (Spring 2014), Hwee-Joo Kam Dec 2013

Teaching Evaluation (Spring 2014), Hwee-Joo Kam

Hwee-Joo Kam

No abstract provided.


The Future Of National And International Security On The Internet, Maurice Dawson, Marwan Omar, Jonathan Abramson, Dustin Bessette Dec 2013

The Future Of National And International Security On The Internet, Maurice Dawson, Marwan Omar, Jonathan Abramson, Dustin Bessette

Maurice Dawson

Hyperconnectivity is a growing trend that is driving cyber security experts to develop new security architectures for multiple platforms such as mobile devices, laptops, and even wearable displays. The futures of national and international security rely on complex countermeasures to ensure that a proper security posture is maintained during this state of hyperconnectivity. To protect these systems from exploitation of vulnerabilities it is essential to understand current and future threats to include the laws that drive their need to be secured. Examined within this chapter are the potential security-related threats with the use of social media, mobile devices, virtual worlds, …


Student Feedback (Spring 2014), Hwee-Joo Kam Dec 2013

Student Feedback (Spring 2014), Hwee-Joo Kam

Hwee-Joo Kam

No abstract provided.


Big Data, Predictive Analytics, And Data Visualization In The Construction Engineering, Joseph Shrestha Dec 2013

Big Data, Predictive Analytics, And Data Visualization In The Construction Engineering, Joseph Shrestha

Joseph Shrestha

The term “big data” is associated with one or more of the four characteristics: volume, variety, and velocity. The technologies associated with the big data has already been proven in other sectors. Internet giants like Google, Facebook, Netflix, etc. uses big data collected from their users to present advertisements, friend recommendations, and TV shows and movies relevant to the specific user. Big data is also used for insurance fraud detection, improving bus system by reducing congestion, predictive flight arrival time, weather forecast, and genomic analysis.
For the construction industry, volume and variety becomes particularly relevant. From project planning to the …


The Effective Use Of Research Tools And Resources, Nader Ale Ebrahim Jan 2013

The Effective Use Of Research Tools And Resources, Nader Ale Ebrahim

Nader Ale Ebrahim

This presentation is prepared to help scholars who seek to reduce the search time by extending the knowledge of researchers to more effectively use the “Research Tools" that are available through the Net.


Energy Costs For Data Center Operations, Heather M. Brotherton Dec 2012

Energy Costs For Data Center Operations, Heather M. Brotherton

Heather M Brotherton

This document answers the questions: What are relative energy costs for data center operations (energy per unit computing) and how do sources of fuel impact data center operation costs geographically across the US?


Transforming Information Systems And Computer Science Education With Virtualization, Maurice E. Dawson Jr., Jorja Wright, Jonathan Abramson Dec 2012

Transforming Information Systems And Computer Science Education With Virtualization, Maurice E. Dawson Jr., Jorja Wright, Jonathan Abramson

Maurice Dawson

This paper will propose an innovative method to transform information systems (IS) and computer science education on a global scale. This method will introduce the use of virtualization and cloud computing combined with open source software (OSS) in higher education. This will allow for those studying IS and computer science to work independently on projects anywhere in the world from a baseline image that has been developed with information assurance (IA) controls. Additionally, this will allow professors and course developers to deploy their own customized virtual machines (VMs) to be used with the course. These VMs will host their own …


Research In Progress-Defending Android Smartphones From Malware Attacks, Marwan Omar, Maurice E. Dawson Jr. Dec 2012

Research In Progress-Defending Android Smartphones From Malware Attacks, Marwan Omar, Maurice E. Dawson Jr.

Maurice Dawson

Smart phones are becoming enriched with confidential information due to their powerful computational capabilities and attractive communications features. The Android smart phone is one of the most widely used platforms by businesses and users alike. This is partially because Android smart phones use the free, open-source Linux as the underlying operating system, which allows development of applications by any software developer. This research study aims to explore security risks associated with the use of Android smart phones and the sensitive information they contain, the researcher devised a survey questionnaire to investigate and further understand security threats targeting Android smart phones. …


Ict For Poverty Alleviation In Pacific Island Nations: Study Of Icts4d In Fiji, Deogratias Harorimana, Opeti Rokotuinivono, Emali Sewale, Fane Salaiwai, Marica Naulu, Evangelin Roy Dec 2012

Ict For Poverty Alleviation In Pacific Island Nations: Study Of Icts4d In Fiji, Deogratias Harorimana, Opeti Rokotuinivono, Emali Sewale, Fane Salaiwai, Marica Naulu, Evangelin Roy

Dr Deogratias Harorimana

ICT for Poverty Alleviation in Pacific Island Nations: Study of ICTs4D in Fiji There has been a vague and little knowledge on the role or potential of Information and Communications Technologies (ICTs) in relation to addressing poverty in Fiji. This may be probably due to the newness of the technology in the South Pacific Region as a whole but also probably due to the fact that only 9.7% of the current Fiji 931,000 populations are internet users (ITC Figures 2011). This paper reports on finding how ICTs is contributing towards poverty alleviation in Fiji. On the basis of reviewed best …


International Ict Research Collaboration: Experiences And Recommendations, Erich Prem, Emma Barron, Arcot Desai Narasimhalu, Ian Morgan Jul 2012

International Ict Research Collaboration: Experiences And Recommendations, Erich Prem, Emma Barron, Arcot Desai Narasimhalu, Ian Morgan

Arcot Desai NARASIMHALU

This paper presents results of a study into the collaboration experiences of researchers. The focus is on long-distance collaboration in information and communication technologies (ICT) research and technology development, i.e. between the EU on the one side and Australia, Singapore or New Zealand on the other. The aim of the study was to provide useful recommendations for researchers who engage in international collaboration and to improve the quality of international co-operation projects. The emphasis here is on the views and experiences of Europe"s international partners. The paper analysis collaboration motives, challenges, co-operation types and provides recommendations for project initiation, networking, …


Strategyproof Mechanisms For Ad Hoc Network Formation, C. Jason Woodard, David C. Parkes Apr 2012

Strategyproof Mechanisms For Ad Hoc Network Formation, C. Jason Woodard, David C. Parkes

C. Jason Woodard

Agents in a peer-to-peer system typically have incentives to influence its network structure, either to reduce their costs or increase their ability to capture value. The problem is compounded when agents can join and leave the system dynamically. This paper proposes three economic mechanisms that offset the incentives for strategic behavior and facilitate the formation of networks with desirable global properties.


Modeling Product Development As A System Design Game, C. Jason Woodard Apr 2012

Modeling Product Development As A System Design Game, C. Jason Woodard

C. Jason Woodard

A system design game is a model of a situation in which agents’ actions determine the structure of a system, which in turn affects the system’s value and the share of value that each agent may capture through bargaining or market competition. This paper describes a class of games in which agents design interdependent products, for example software programs, which may be complements or substitutes for each other. These relationships are epresented by an object called a design structure network (DSN). Depending on the modeler’s choice of allocation rules, agents may benefit from owning critical nodes in the DSN, corresponding …


Modeling Architectural Strategy Using Design Structure Networks, C. Jason Woodard Apr 2012

Modeling Architectural Strategy Using Design Structure Networks, C. Jason Woodard

C. Jason Woodard

System architects face the formidable task of purposefully shaping an evolving space of complex designs. Their task s further complicated when they lack full control of the design process, and therefore must anticipate the behavior of other stakeholders, including the designers of component products and competing systems. This paper presents a conceptual tool called a design structure network (DSN) to help architects and design scientists reason effectively about these situations. A DSN is a graphical representation of a system’s design space. DSNs improve on existing representation schemes by providing a compact and intuitive way to express design options—the ability to …


Design Of A Gps-Web Fleet Tracking Application, Djilali Idoughi, Abdenour Alliche, Karim Touloum Mar 2012

Design Of A Gps-Web Fleet Tracking Application, Djilali Idoughi, Abdenour Alliche, Karim Touloum

Professor Djilali IDOUGHI

We describe our ongoing research investigations aimed at developing a Location-Based System integrating web and Geolocation technologies. This article addresses main design issues of a GPS and web based application dedicated to the fleet and assets tracking system.


Adding User Experience Into The Interactive Service Design Loop: A Persona-Based Approach, Djilali Idoughi, Ahmed Seffah, Christophe Kolski Feb 2012

Adding User Experience Into The Interactive Service Design Loop: A Persona-Based Approach, Djilali Idoughi, Ahmed Seffah, Christophe Kolski

Professor Djilali IDOUGHI

Approaches to service design share HCI's commitment to developing with and for people useful, usable and accessible services. However, there has been little explicit interaction between the emerging service sciences and the interaction design communities. This paper explores HCI's actual position and opportunities to service design and requirements and vice versa. We propose a design framework for service oriented interactive systems integrating the concept of persona. This enables to extract relevant elements towards deriving the design of the main functionalities of the user interface. This framework is applied to a case study of the e-maintenance of an agro-alimentary group.


Social Networks And Web2.0 Among Youth: Lessons For Pacific Island Nations, Deogratias Harorimana Sr Feb 2012

Social Networks And Web2.0 Among Youth: Lessons For Pacific Island Nations, Deogratias Harorimana Sr

Dr Deogratias Harorimana

This study is on social networks and web2 among youths and the lessons for Pacific Island nation. This study defines commonly used social networking sites used by the Pacific youths, average time spent, reasons behind the use of social networking sites and how social networking sites can be used as a development tool for Pacific Island nation. It was found that the popularity of social networking amongst youths in Pacific Island Countries is fast growing, increasing more than three folds year on year in the last 3years. Social Networks are a vital part of life for PIC youths, where, now …


User Experience In Service Design: Defining A Common Ground From Different Fields, Karim Touloum, Djilali Idoughi, Ahmed Seffah Dec 2011

User Experience In Service Design: Defining A Common Ground From Different Fields, Karim Touloum, Djilali Idoughi, Ahmed Seffah

Professor Djilali IDOUGHI

The emerging field of service design combines several methods mainly from the fields of product, software and interaction design, for designing the experience and interface to services. However, User eXperience design is not easy to understand because it is a new approach and covers many different fields (usability, psychology, marketing…). More often the design team members come from various domains with different cultural backgrounds such as engineers and marketing. Therefore, it is necessary to have a common definition to share the same understanding of this concept. In this paper, we investigate the main definitions proposed in the literature and the …