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Alex Ferworn

    Alex Ferworn

    ABSTRACT This paper presents a model for mobile medical applications for a near --real-time binary data exchange over heterogeneous networks. The model was tested with a software simulation and a real fully mobile system which monitors... more
    ABSTRACT This paper presents a model for mobile medical applications for a near --real-time binary data exchange over heterogeneous networks. The model was tested with a software simulation and a real fully mobile system which monitors oxygenated hemoglobin (HBO) and deoxygenated hemoglobin (HB) concentration changes in the brain and tissues. The system used global system for mobile communications (GSM) Bluetooth networks and the internet. The application used the proposed model. The model consists of four processing nodes: the first node collect data from the brain and send it to the second node over a short range network; the second node act as a intermediate mobile server that holds capture data and transmit it over a long range networks; the third node act a remote server that store data for long term, the fourth ac as a monitoring station that monitor test subjects in near-real-time.
    ABSTRACT This paper presents the necessary element to enable brain spectroscopy and medical applications over the Cloud. The paper presents a model for mobile medical applications for a near real-time binary data exchange over the Cloud.... more
    ABSTRACT This paper presents the necessary element to enable brain spectroscopy and medical applications over the Cloud. The paper presents a model for mobile medical applications for a near real-time binary data exchange over the Cloud. The model was tested with a software simulation and a real fully mobile system that monitors oxygenated hemoglobin (HBO) and deoxygenated hemoglobin (HB) concentration changes in the brain and tissues. The system used global system for mobile communications (GSM) Bluetooth networks and the Cloud. The paper shows it is possible to use the Cloud to enable medical applications.
    In the field of Urban Search and Rescue (USAR), searching for people trapped in the rubble of a collapsed building largely assumes the presence of many objects that are not the trapped victims, but may provide clues as to the location of... more
    In the field of Urban Search and Rescue (USAR), searching for people trapped in the rubble of a collapsed building largely assumes the presence of many objects that are not the trapped victims, but may provide clues as to the location of them. However, the lack of objects can be just as informative. Unlike positive objects (POs), negative objects extend into the surface of interest [1], and may contain people. These negative objects (NOs) are commonly known as “holes” or “voids”. In this paper we discuss the necessity for creating a lexicon and classifier for negative objects or holes. We review current efforts to detect and classify them, and finally begin building a vocabulary to effectively discuss negative objects. This paper aims to spark a discussion about negative object research and suggest a starting point for a novel research area.
    In addition to the cost savings, technology such as e-learning, hybrid learning and simulations are tools that are used to equip police force with the competencies and skills needed to protect the public and respond to the changing... more
    In addition to the cost savings, technology such as e-learning, hybrid learning and simulations are tools that are used to equip police force with the competencies and skills needed to protect the public and respond to the changing demographics. That is, the future of police training will be geared towards developing competencies to support existing training for police and the recruitment process that relies on technology and integrated crisis management systems. Simulations, robotics and reallife situations are vital in preparing the first responders and decision makers with the skills and competencies needed to respond effectively to a crisis. The successful design of the training strategies will provide police force with tactics that will enable them to offer the training in a suitable delivery medium. In this paper, we explore the use of simulations and virtual environments in police training, investigate examples of integrated simulation architectures and list how the various l...
    The accelerations experienced by riders of Zip Line attractions is an underexplored area of public safety assurance. These amusement devices require complex processes to collect and analyze acceleration data. Highly versatile and... more
    The accelerations experienced by riders of Zip Line attractions is an underexplored area of public safety assurance. These amusement devices require complex processes to collect and analyze acceleration data. Highly versatile and effective rider-worn and ride-carried devices are necessary to collect acceleration and velocity data without affecting the integrity of the ride. This paper introduces the use of a sensor device for collecting Zip Line acceleration data in the form of a Trailing Trolley. This architecture extends the work of Sicat et. al.’s which proposed the use of a Sensor Vest and Headwear to collect linear and rotational accelerations of a Zip Line rider. We investigate the logistics of combining the two sensor platforms and formulate a procedure to post-process and analyze the data. Techniques to extract, filter, and process the accelerations recorded is discussed and the potential for the synthesis of positioning linear and rotational data is described. Additional te...
    The recent application of recommender systems for educational resources and e-learning has facilitated online and accessible education on social networks. However, there are currently few studies about the methods for evaluation and... more
    The recent application of recommender systems for educational resources and e-learning has facilitated online and accessible education on social networks. However, there are currently few studies about the methods for evaluation and performance measurement of these recommender systems in the complicated environment of educational and social networking platforms. The purpose of this research paper is to investigate the effectiveness of using sentiment analysis methods for educational resources based on user comments and compare it with the quantitative approach based on user rating to recommend best open learning resources (OER) available through online OER repositories. The quality of the OER will be justified by comparing the user rating and the users' reviews. The quality of users' reviews is based on calculating the term frequency for selected positive and negative terms, then determining the similarity among the comments. Comments with positive or negative words confirm ...
    We present the latest advances of our Canine Augmentation Technology (CAT) system. Our new approach to Urban Search and Rescue canine search sensing involves the use of stabilized and stitched multi-camera views and produces panoramic... more
    We present the latest advances of our Canine Augmentation Technology (CAT) system. Our new approach to Urban Search and Rescue canine search sensing involves the use of stabilized and stitched multi-camera views and produces panoramic video that can be further processed for better human understanding. We discuss our initial results, some of the outstanding challenges and the existing and possible capabilities of the system. The results of our field testing are also presented.
    In Urban Search and Rescue (US&R) operations, canine teams are deployed to find live patients, and save lives. US&R may benefit from increased levels of situational awareness, through information made available through the use of embedded... more
    In Urban Search and Rescue (US&R) operations, canine teams are deployed to find live patients, and save lives. US&R may benefit from increased levels of situational awareness, through information made available through the use of embedded systems attached to the dogs. One of these is the Canine Pose Estimation (CPE) system. There are many challenges faced with such embedded systems including the engineering of such devices for use in disaster environments. Durability and wireless connectivity in areas with materials that inhibit wireless communications, the safety of the dog wearing the devices, and form factor must be accommodated. All of these factors must be weighed without compromising the accuracy of the application and the timely delivery of its data. This paper discusses the adaptive engineering process and how each of the unique challenges of emergency response embedded systems can be defined and overcome through effective design methods.
    Research Interests:
    We in the Network-Centric Applied Research Team (N- CART) are conducting an on-going study designed to resolve issues associated with the reality of movement and interaction of a Web-enabled mobile teleoperated device in a dynamic,... more
    We in the Network-Centric Applied Research Team (N- CART) are conducting an on-going study designed to resolve issues associated with the reality of movement and interaction of a Web-enabled mobile teleoperated device in a dynamic, unstructured indoor environment. Our goal is to document anomalies in the form of extensive recreation and annotated video. We have undertaken this task in order to develop strategies, tools and techniques for dealing with mobility issues likely to be encountered by actual teleoperated devices in their role as Internet Appliances (IAs). In this paper we outline our experimental design and describe some of the difficulties we have encountered.
    In this paper, a brief introduction of grid computing and services has been discussed. Next, grid simulation software GridSim is explained. The J2EE enterprise application architecture is compared to implement the proposed architecture... more
    In this paper, a brief introduction of grid computing and services has been discussed. Next, grid simulation software GridSim is explained. The J2EE enterprise application architecture is compared to implement the proposed architecture within NetBeans IDE 6.1. Then the implementation of proposed architecture as J2EE enterprise application is elaborated. The architecture is implemented as enterprise application because it addresses the scalability issues of grid computing. Finally, the simulation results of initial implementation of architecture model for grid resources discovery are given. This model for resource discovery is found more scalable due to use of semantic information such as metadata. The initial results of simulation of grid resource discovery model are compared with GridSim that represents no architecture in our simulation and it is found efficient.
    Research Interests:
    Research Interests:
    Research Interests:
    ABSTRACT As the world's economic activities are expanding, the energy comes to the fore to the question of the sustainable growth in all technological areas, including wireless mobile networking. Energy-aware routing schemes for... more
    ABSTRACT As the world's economic activities are expanding, the energy comes to the fore to the question of the sustainable growth in all technological areas, including wireless mobile networking. Energy-aware routing schemes for wireless networks have spurred a great deal of recent research towards achieving this goal. Recently, an energy-aware routing protocol for MANETs was proposed by us, in which the energy load among nodes is balanced so that a minimum energy level is maintained and the resulting network lifetime is increased. In this paper, an Ant Colony Optimization (ACO) inspired approach to EEAODR (so-called ACO-EEAODR) is proposed. To the best of our knowledge, no attempts have been made so far in this direction. The obtained simulation results show that the ACO-EEAODR outperforms the EEAODR scheme in terms of energy consumed and network lifetime performance metrics.
    Ad-hoc networks and mobile devices have become a crucial part of our daily lives. The low cost of wireless devices and free use of ad-hoc networks open an unlimited horizon to create new applications. Moreover, integrating several... more
    Ad-hoc networks and mobile devices have become a crucial part of our daily lives. The low cost of wireless devices and free use of ad-hoc networks open an unlimited horizon to create new applications. Moreover, integrating several technologies can achieve almost unthinkable solutions. This paper presents a mobile solution framework to monitor human brain functions during real-life activities. The framework utilizes the internet, GSM wireless networks, Bluetooth technology and a number of data protocols, and consists of three main parts: a Bluetooth portable near-infrared light sensor; a personal digital assistant (PDA) and a personal computer (PC). The real-time data acquisition is performed by the sensor while mobility is provided by the GSM PDA. The data is sent over a various-protocol stack until it reaches the final destination (the host PC). The system provides a powerful light-weight human-brain-function monitoring system in real-life situations outside a lab environment. Several software components have been developed to achieve the integration of all these technologies and devices.
    ABSTRACT Let Fq be the finite field of q elements and A=Fq[X]/(Xm-1) be the algebra of q-ary polynomials modulo Xm-1. The q-ary 1-generator quasi-cyclic (QC) code of block length ml, of index a divisor of l, with generator a(X) =... more
    ABSTRACT Let Fq be the finite field of q elements and A=Fq[X]/(Xm-1) be the algebra of q-ary polynomials modulo Xm-1. The q-ary 1-generator quasi-cyclic (QC) code of block length ml, of index a divisor of l, with generator a(X) = (ai(X))i=0 l-1 is the A-cyclic submodule V of Al defined as Aa(X) = {(lambda(X)ai(X))0 l-1, lambda(X) isin A} under the module operation lambda(X) Sigmai=0 l-1 ai(X)Yi = Sigmai=0 l-1lambda(X)ai(X)Yi, where lambda(X) isin A and lambda(X)ai(X) is reduced modulo Xm-1. Under the simplifying assumption (m, q) = 1, we determine a lower bound on the minimum distance of V. The result is achieved by determining a lower bound on the minimal number of not null blocks in a typical codeword of V.
    The Network-Centric Applied Research Team (NCART) (1) has been exploring the possibility of extending video, audio and control services through the Internet to various telebotic devices. To allow greater freedom of movement to the... more
    The Network-Centric Applied Research Team (NCART) (1) has been exploring the possibility of extending video, audio and control services through the Internet to various telebotic devices. To allow greater freedom of movement to the telerobot, the final communications link is wireless. In previous work, we have demonstrated a wireless client interface through a common Palm OS Personal Digital Assistant (PDA). Wireless Internet Video and Robotics Control on the Palm OS PDA involves the problem of multiple constraints, including limited bandwidth, hardware speed and software size. This paper presents solving the problem numerically by means of a Simplex Technique. Some numerical results are presented.
    Research Interests:
    "Grid Computing" has emerged as an important new field, distinguished from conventional distributed computing by its focus on large-scale resource sharing, innovative applications, and in some cases... more
    "Grid Computing" has emerged as an important new field, distinguished from conventional distributed computing by its focus on large-scale resource sharing, innovative applications, and in some cases high-performance orientation. This article is intended for readers who already know web services technology. In this article which is an informative in nature, a brief introduction of grid computing has been discussed. Next, web services have been introduced from which grid services technology is abstracted. Thereafter, grid services forms such as Open Grid Services Architecture (OGSA), Open Grid Services Infrastructure (OGSI) and Globus GT3 an Open source grid software toolkit have been taken into account. Finally, a new economical architecture layer for Grid resources discovery is proposed for resource discovery in grid computing.
    Research Interests:
    This paper examines some of the more interesting characteristics of inchworm mobility. Empirical evidence of a working system's performance is presented which suggests that this form of mobility may be applicable to environments with... more
    This paper examines some of the more interesting characteristics of inchworm mobility. Empirical evidence of a working system's performance is presented which suggests that this form of mobility may be applicable to environments with extremely rough, uneven terrain.
    Research Interests:
    We present a detailed case study of how DTGolog-a logic-based decision theoretic planner based on the language of situation calculus-can be adapted to solve a limited but common and useful form of hierarchical planning, and demonstrate... more
    We present a detailed case study of how DTGolog-a logic-based decision theoretic planner based on the language of situation calculus-can be adapted to solve a limited but common and useful form of hierarchical planning, and demonstrate how it can be applied ...
    ABSTRACT This is a proposal requesting funding and resources in support of a study that will design, construct and test an inexpensive tethered video camera cluster that will be used to created and transmit real-time spherical panoramic... more
    ABSTRACT This is a proposal requesting funding and resources in support of a study that will design, construct and test an inexpensive tethered video camera cluster that will be used to created and transmit real-time spherical panoramic video. The intent of the device is to create a cost-effective means of providing comprehensive, integrated and continuous spherical panoramic views of operational setting in micro-gravity.
    Page 1. THE REFLEXIVE INSTRUCTOR WITH DELIBERATE APPRENTICE ARCHITECTURE by Alexander Ferworn A thesis presented to the University of Waterloo in fulfilment of the thesis requirement for the degree of Doctor of Philosophy in Systems... more
    Page 1. THE REFLEXIVE INSTRUCTOR WITH DELIBERATE APPRENTICE ARCHITECTURE by Alexander Ferworn A thesis presented to the University of Waterloo in fulfilment of the thesis requirement for the degree of Doctor of Philosophy in Systems Design Engineering ...
    A Public Safety Network (PSN) is an essential element of the Emergency Management System (EMS) for any country to deal with natural or man-made disasters. PSN is an information and communication infrastructure that assists managing first... more
    A Public Safety Network (PSN) is an essential element of the Emergency Management System (EMS) for any country to deal with natural or man-made disasters. PSN is an information and communication infrastructure that assists managing first responders during incident operations. In this article we propose a model of computation and communication that could represent a future alternative public safety network. Our concept is based on the integration of emerging technologies like Fog/Edge Computing, Internet of Things (IoT), and FirstNet network partly in operation in the United States. Our model proposes a synergy between these technologies and forms a platform for highly qualified people (HQP) in training to develop and experiment with their research work. As the technology is similar to that in actual operation, any research results may be more easily adopted by PSNs in actual operations. Mobile edge devices like smart phones, dones, robots, and aerial platforms form part of deployed devices. These are interconnected via gateways to the Internet for providing useful information to incident command centers where managers can make timely decisions. Our model is implemented using off-the-shelf devices both for computing and communication tasks.

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