292 research outputs found

    2001 : Postgraduate Prospectus

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    Book containing postgraduate prospectus with information on applications to postgraduate studies by resarch/fees, research funding, application to courses, course funding, international applicants, research centres, contacts for persons etc

    Enabling peer-to-peer remote experimentation in distributed online remote laboratories

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    Remote Access Laboratories (RALs) are online platforms that allow human user interaction with physical instruments over the Internet. Usually RALs follow a client-server paradigm. Dedicated providers create and maintain experiments and corresponding educational content. In contrast, this dissertation focuses on a Peer-to-Peer (P2P) service model for RALs where users are encouraged to host experiments at their location. This approach can be seen as an example of an Internet of Things (IoT) system. A set of smart devices work together providing a cyber-physical interface for users to run experiments remotely via the Internet. The majority of traditional RAL learning activities focus on undergraduate education where hands-on experience such as building experiments, is not a major focus. In contrast this work is motivated by the need to improve Science, Technology, Engineering and Mathematics (STEM) education for school-aged children. Here physically constructing experiments forms a substantial part of the learning experience. In the proposed approach, experiments can be designed with relatively simple components such as LEGO Mindstorms or Arduinos. The user interface can be programed using SNAP!, a graphical programming tool. While the motivation for the work is educational in nature, this thesis focuses on the technical details of experiment control in an opportunistic distributed environment. P2P RAL aims to enable any two random participants in the system - one in the role of maker creating and hosting an experiment and one in the role of learner using the experiment - to establish a communication session during which the learner runs the remote experiment through the Internet without requiring a centralized experiment or service provider. The makers need to have support to create the experiment according to a common web based programing interface. Thus, the P2P approach of RALs requires an architecture that provides a set of heterogeneous tools which can be used by makers to create a wide variety of experiments. The core contribution of this dissertation is an automaton-based model (twin finite state automata) of the controller units and the controller interface of an experiment. This enables the creation of experiments based on a common platform, both in terms of software and hardware. This architecture enables further development of algorithms for evaluating and supporting the performance of users which is demonstrated through a number of algorithms. It can also ensure the safety of instruments with intelligent tools. The proposed network architecture for P2P RALs is designed to minimise latency to improve user satisfaction and learning experience. As experiment availability is limited for this approach of RALs, novel scheduling strategies are proposed. Each of these contributions has been validated through either simulations, e.g. in case of network architecture and scheduling, or test-bed implementations, in case of the intelligent tools. Three example experiments are discussed along with users' feedback on their experience of creating an experiment and using others’ experimental setup. The focus of the thesis is mainly on the design and hosting of experiments and ensuring user accessibility to them. The main contributions of this thesis are in regards to machine learning and data mining techniques applied to IoT systems in order to realize the P2P RALs system. This research has shown that a P2P architecture of RALs can provide a wide variety of experimental setups in a modular environment with high scalability. It can potentially enhance the user-learning experience while aiding the makers of experiments. It presents new aspects of learning analytics mechanisms to monitor and support users while running experiments, thus lending itself to further research. The proposed mathematical models are also applicable to other Internet of Things applications

    2000 - 2001: Postgraduate Prospectus

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    This booklet outlines the opportunities for post graduate studies offered by the Dublin Institute of Technology. Including both taught and programmes of research leading to higher level awards

    Measuring the Business Value of Cloud Computing

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    The importance of demonstrating the value achieved from IT investments is long established in the Computer Science (CS) and Information Systems (IS) literature. However, emerging technologies such as the ever-changing complex area of cloud computing present new challenges and opportunities for demonstrating how IT investments lead to business value. Recent reviews of extant literature highlights the need for multi-disciplinary research. This research should explore and further develops the conceptualization of value in cloud computing research. In addition, there is a need for research which investigates how IT value manifests itself across the chain of service provision and in inter-organizational scenarios. This open access book will review the state of the art from an IS, Computer Science and Accounting perspective, will introduce and discuss the main techniques for measuring business value for cloud computing in a variety of scenarios, and illustrate these with mini-case studies

    A Transcendental Phenomenological Study of the Lived Experiences of Middle Managers: Self-determined Lifelong Learning in the Banking Industry

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    The purpose of this transcendental phenomenological study was to describe the experiences of middle managers in the banking industry practicing heutagogy to develop lifelong learning skills. The theory guiding this study is Deci and Ryan’s self-determination theory and its relationship with lifelong learning. This study aimed to answer the central research question: What are the lived experiences of middle managers in the banking industry practicing heutagogy to develop lifelong learning skills? Data collected from individual interviews, focus groups, and journal prompts were synthesized using open and axial coding to identify patterns and connections in the resulting data. Data analysis followed the Stevick-Colaizzi-Keen method described by Moustakas. Following an in-depth analysis of the collected data, five major themes emerged. Learning and employment growth, lifelong learning and adaptation, organizational implementation of learning, referrals and career advancement, and personal growth through experience and accomplishment offer a valuable perspective into middle managers\u27 experiences in the banking industry practicing heutagogy to develop lifelong learning skills. These themes provide insight into the various aspects of their personal and professional growth journey. The study concludes by discussing the implications and findings for future research

    Viable Health Games: Elements for Success

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    The main purpose of this study is to identify the elements of children's health games that have a positive impact on children’s health. The investigation is done by evaluating previous health game studies concentrating on children and five health affairs (such as asthma, cancer, diabetes, nutrition and obesity). In order to do so, firstly the topic of children’s health games is explained through its roots, as it is an interdisciplinary topic pertinent with many other fields. For this reason, the topics regarding the children’s health games as games, video games, children’s gameplay, and serious games along with health, relevant health affairs, and health promotion were covered. Secondly, the meta-study was conducted with the 56 articles on children’s health games. These 56 articles were analyzed with the coding technique defined by Charmaz’s Grounded Theory Method (Charmaz, 2006) for finding out which elements of children’s health games have a positive impact on children’s health promotion. The main result suggests that, although there are 24 different elements found and listed which all positive in their nature, their positive impact is a matter of how they are used or implemented through the consumption cycle of children’s health games and how all these elements interact with each other. In addition to this, a pragmatic proposal is formulated for possibly better or more successful health games. The study concludes with the declaration of the limitations encountered through the research and the recommendations for future research.siirretty Doriast

    Real-Time deep image rendering and order independent transparency

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    In computer graphics some operations can be performed in either object space or image space. Image space computation can be advantageous, especially with the high parallelism of GPUs, improving speed, accuracy and ease of implementation. For many image space techniques the information contained in regular 2D images is limiting. Recent graphics hardware features, namely atomic operations and dynamic memory location writes, now make it possible to capture and store all per-pixel fragment data from the rasterizer in a single pass in what we call a deep image. A deep image provides a state where all fragments are available and gives a more complete image based geometry representation, providing new possibilities in image based rendering techniques. This thesis investigates deep images and their growing use in real-time image space applications. A focus is new techniques for improving fundamental operation performance, including construction, storage, fast fragment sorting and sampling. A core and driving application is order-independent transparency (OIT). A number of deep image sorting improvements are presented, through which an order of magnitude performance increase is achieved, significantly advancing the ability to perform transparency rendering in real time. In the broader context of image based rendering we look at deep images as a discretized 3D geometry representation and discuss sampling techniques for raycasting and antialiasing with an implicit fragment connectivity approach. Using these ideas a more computationally complex application is investigated — image based depth of field (DoF). Deep images are used to provide partial occlusion, and in particular a form of deep image mipmapping allows a fast approximate defocus blur of up to full screen size

    Explore the relations between personality and gamification

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    Indiana University-Purdue University Indianapolis (IUPUI)Successful gamification motivates users to engage in systems using game-like experiences. However, a one-size-fits-all approach to gamification is often unsuccessful; prior studies suggest that personality serves as a key differentiator in the effectiveness of the approach. To advance the understanding of personality differences and their influence on users’ behavior and motivation in gamification, this dissertation is comprised of three studies that: 1) explore the relationships among individuals’ personality traits and preferences for different gamification features through an online survey; 2) investigate how people with different personality traits respond to the motivational affordances in a gamified application over a period of time through a diary study; and 3) reveal how individuals respond differentially to different kinds of leaderboard experiences based on their leaderboard rankings, the application domain, and the individuals’ personality traits through their responses to 9 dynamic leaderboards. The results from the first study show that extraversion and emotional stability are the two primary personality traits that differentiate users’ preferences for gamification. Among the 10 types of motivational affordances, extraverts are more likely to be motivated by Points, Levels, and Leaderboards. However, the results from the second (diary) study indicate that, after the first week, extraverts’ preferences for Points decreased. The motivation effects of Points and Leaderboards changed over the course of using the gamified application. The results from the third study confirm the findings from the first two studies about extraversion and revealed that ranking and domain differences are also effective factors in users’ experiences of Leaderboards in gamification. Design guidelines for gamification are presented based on the results of each of the three studies. Based on a synthesis of the results from these three studies, this dissertation proposes a conceptual model for gamification design. The model describes not only the impact of personality traits, domain differences, and users’ experience over time, but also illustrates the importance of considering individual differences, application context, and the potential significance of user persistence in gamification design. This research contributes to the HCI and gamification communities by uncovering factors that will affect the way that people respond to gamification systems, considered holistically
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