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University of Florida
1.
Hunt, William C.
A Computer-Based Simulation for Training Dental Preparation.
Degree: MS, Computer Engineering - Computer and Information Science and Engineering, 2012, University of Florida
URL: https://ufdc.ufl.edu/UFE0044204 
► We present a low-cost VR simulation environment for dental students that allows trainees to practice dental preparation. The trainee haptically interacts with a virtual tooth,…
(more)
▼ We present a low-cost VR simulation environment for dental students that allows trainees to practice dental preparation. The trainee haptically interacts with a virtual tooth, drilling into its enamel and dentin layers. When training students, the environment can compute metrics, saving educators’ time. The system was tested and evaluated by dental students and professors of dentistry. ( en )
Advisors/Committee Members: Peters, Jorg (committee chair), Lok, Benjamin C (committee member), Fishwick, Paul A (committee member).
Subjects/Keywords: College students; Coordinate systems; Data models; Dental models; Drilling; Maps; Simulations; Teeth; Tooth enamel; Virtual reality; dental – drilling – graphics – haptic – preparation – simulation – training – virtual
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APA (6th Edition):
Hunt, W. C. (2012). A Computer-Based Simulation for Training Dental Preparation. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044204
Chicago Manual of Style (16th Edition):
Hunt, William C. “A Computer-Based Simulation for Training Dental Preparation.” 2012. Masters Thesis, University of Florida. Accessed April 21, 2021.
https://ufdc.ufl.edu/UFE0044204.
MLA Handbook (7th Edition):
Hunt, William C. “A Computer-Based Simulation for Training Dental Preparation.” 2012. Web. 21 Apr 2021.
Vancouver:
Hunt WC. A Computer-Based Simulation for Training Dental Preparation. [Internet] [Masters thesis]. University of Florida; 2012. [cited 2021 Apr 21].
Available from: https://ufdc.ufl.edu/UFE0044204.
Council of Science Editors:
Hunt WC. A Computer-Based Simulation for Training Dental Preparation. [Masters Thesis]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044204
University of Florida
2.
Yeo, Young I.
Accurate Rendering of Curved Higher-Order Surfaces on the GPU.
Degree: PhD, Computer Engineering - Computer and Information Science and Engineering, 2012, University of Florida
URL: https://ufdc.ufl.edu/UFE0044032
► Curved or higher-order surfaces such as a spline patch or a Bezier patch, need to be triangulated for rendering with the current graphics pipeline. A…
(more)
▼ Curved or higher-order surfaces such as a spline patch or a Bezier patch, need to be triangulated for rendering with the current graphics pipeline. A classic challenge is to render such surfaces pixel-accurately, i.e., so that the display has neither polyhedral artifacts nor parametric distortion. The first contribution of this dissertation shows how to set the evaluation density for such a patch just finely enough so that the resulting triangulation yields a pixel-accurate display in the standard graphics pipeline. The approach uses tight estimates, not of the size under screen-projection, but of the variance under screen-projection between the exact surface and its triangulation.
Advisors/Committee Members: Peters, Jorg (committee chair), Ho, Jeffrey (committee member), Ungor, Alper (committee member), Fishwick, Paul A (committee member), Kumar, Ashok V (committee member).
Subjects/Keywords: Animation; Computer graphics; Geometry; Pipelines; Pixels; Smooth surfaces; Stencils; Tessellations; Triangles; Vertices; accuracy – animation – gpu – lod – pixel – surface – tessellation
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APA (6th Edition):
Yeo, Y. I. (2012). Accurate Rendering of Curved Higher-Order Surfaces on the GPU. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044032
Chicago Manual of Style (16th Edition):
Yeo, Young I. “Accurate Rendering of Curved Higher-Order Surfaces on the GPU.” 2012. Doctoral Dissertation, University of Florida. Accessed April 21, 2021.
https://ufdc.ufl.edu/UFE0044032.
MLA Handbook (7th Edition):
Yeo, Young I. “Accurate Rendering of Curved Higher-Order Surfaces on the GPU.” 2012. Web. 21 Apr 2021.
Vancouver:
Yeo YI. Accurate Rendering of Curved Higher-Order Surfaces on the GPU. [Internet] [Doctoral dissertation]. University of Florida; 2012. [cited 2021 Apr 21].
Available from: https://ufdc.ufl.edu/UFE0044032.
Council of Science Editors:
Yeo YI. Accurate Rendering of Curved Higher-Order Surfaces on the GPU. [Doctoral Dissertation]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044032
University of Florida
3.
Ezzell, Zachary Peter.
A Unified Human Interaction-Based Theory and Framework for Simulation Modeling and Visualization Design.
Degree: PhD, Computer Engineering - Computer and Information Science and Engineering, 2012, University of Florida
URL: https://ufdc.ufl.edu/UFE0044994
► Visualizing dynamic phenomena by leveraging computer graphics and simulation is of increasing interest to society. In the classroom, such dynamic visual modules can motivate students…
(more)
▼ Visualizing dynamic phenomena by leveraging computer graphics and simulation is of increasing interest to society. In the classroom, such dynamic visual modules can motivate students and give them a holistic view of a given event. Industry practitioners and researchers also leverage such modules to aid in comprehending simulation results and communicating ideas. Current methods used to construct these customized views,however, are expensive. Content experts must employ engineers to code the mathematical model that defines the dynamic behavior of the scenario. Engineers must then somehow visualize the output of the model. These tasks are performed with engineering software tools or just pure computer programming. This work is towards defining an interface and interaction model that will compress this engineering overhead, and thus narrow the user-interface gap between mathematical modeling and 3D interactive visualization design and consumption. Interaction within the proposed interface centers on a visualization of a 3D semantic network, or ontology, in which domain concepts are represented by nodes and an edge between two nodes represents a semantic relationship between two concepts in the domain space. To create custom modules, visual attributes can be added to nodes within the semantic graph that point to graphical resources, or define dynamic behavior. In this dissertation it is demonstrated that through interactions with this semantic graph, a designer can sculpt and annotate simulation models into meaningful interactive, animated visualizations that integrate 2D and 3D information to relay the dynamics of an event to an observer. The theoretical interface and interaction techniques will be presented along with a case study visualization constructed using a prototypical implementation of the theory. ( en )
Advisors/Committee Members: Fishwick, Paul A (committee chair), Ho, Jeffrey (committee member), Dankel, Douglas D (committee member), Lok, Benjamin C (committee member), Lampotang, Samsun (committee member).
Subjects/Keywords: Animation; Domain ontologies; Graphic design; Graphics; Mathematical variables; Modeling; Ontology; Semantic models; Simulations; Three dimensional modeling; design – modeling – simulation – visualization; City of Crystal River ( local )
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APA (6th Edition):
Ezzell, Z. P. (2012). A Unified Human Interaction-Based Theory and Framework for Simulation Modeling and Visualization Design. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044994
Chicago Manual of Style (16th Edition):
Ezzell, Zachary Peter. “A Unified Human Interaction-Based Theory and Framework for Simulation Modeling and Visualization Design.” 2012. Doctoral Dissertation, University of Florida. Accessed April 21, 2021.
https://ufdc.ufl.edu/UFE0044994.
MLA Handbook (7th Edition):
Ezzell, Zachary Peter. “A Unified Human Interaction-Based Theory and Framework for Simulation Modeling and Visualization Design.” 2012. Web. 21 Apr 2021.
Vancouver:
Ezzell ZP. A Unified Human Interaction-Based Theory and Framework for Simulation Modeling and Visualization Design. [Internet] [Doctoral dissertation]. University of Florida; 2012. [cited 2021 Apr 21].
Available from: https://ufdc.ufl.edu/UFE0044994.
Council of Science Editors:
Ezzell ZP. A Unified Human Interaction-Based Theory and Framework for Simulation Modeling and Visualization Design. [Doctoral Dissertation]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044994
University of Florida
4.
Whig, Alok.
Stream Processor Based Real-Time Visual Tracking Using Appearance Based Approach.
Degree: MS, Computer Engineering - Computer and Information Science and Engineering, 2009, University of Florida
URL: https://ufdc.ufl.edu/UFE0025166
► Graphics Processing Unit (GPU) has changed the scenario of desktop computing due to its extremely high parallel processing capability and availability at affordable cost. The…
(more)
▼ Graphics Processing Unit (GPU) has changed the scenario of desktop computing due to its extremely high parallel processing capability and availability at affordable cost. The GPU was originally designed to solve graphical problems that often involve time expensive mathematical operations applied to a large set of points. Recent upgrades to GPU architecture enabled research community to harness full potential of its processing capabilities to solve non-graphical problems without approximating to a graphical problem. Implementing non-graphical problems to run on GPU are filled with challenges and not straightforward. The thesis aims to study mapping challenges involved thereof and explore solutions to get best possible performance gain of an application. Problem of real-time visual tracking is chosen as a test case to implement and run on GPU using CUDA a parallel computing software tool. Real-time visual tracking was chosen because of its popularity and application in Computer Vision forming one of its core research areas. Several tracking algorithms are available but often suffer from speed issues due to demand of high degree of accuracy. The thesis revisits work in [18] and implements the same in CUDA. Significant overall speedup is the major goal of the work presented. ( en )
Advisors/Committee Members: Ho, Jeffrey (committee chair), Fishwick, Paul A. (committee member), Peters, Jorg (committee member).
Subjects/Keywords: Computer memory; Computer programming; Input output; Mathematical vectors; Optical tracking; Pipelines; Real time computing; Sample size; Software; Vertices; cuda, gpgpu, gpu, hpc, object, processor, stream, tracking
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APA (6th Edition):
Whig, A. (2009). Stream Processor Based Real-Time Visual Tracking Using Appearance Based Approach. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0025166
Chicago Manual of Style (16th Edition):
Whig, Alok. “Stream Processor Based Real-Time Visual Tracking Using Appearance Based Approach.” 2009. Masters Thesis, University of Florida. Accessed April 21, 2021.
https://ufdc.ufl.edu/UFE0025166.
MLA Handbook (7th Edition):
Whig, Alok. “Stream Processor Based Real-Time Visual Tracking Using Appearance Based Approach.” 2009. Web. 21 Apr 2021.
Vancouver:
Whig A. Stream Processor Based Real-Time Visual Tracking Using Appearance Based Approach. [Internet] [Masters thesis]. University of Florida; 2009. [cited 2021 Apr 21].
Available from: https://ufdc.ufl.edu/UFE0025166.
Council of Science Editors:
Whig A. Stream Processor Based Real-Time Visual Tracking Using Appearance Based Approach. [Masters Thesis]. University of Florida; 2009. Available from: https://ufdc.ufl.edu/UFE0025166
University of Florida
5.
Grobelny, Eric.
Fast and Accurate Simulation Environment (FASE) for High-Performance Computing Systems and Applications.
Degree: PhD, Electrical and Computer Engineering, 2008, University of Florida
URL: https://ufdc.ufl.edu/UFE0022068
► As systems of computers become more complex in terms of their architecture, interconnect, and heterogeneity, the optimum configuration and use of these machines becomes a…
(more)
▼ As systems of computers become more complex in terms of their architecture, interconnect, and heterogeneity, the optimum configuration and use of these machines becomes a major challenge. To reduce the penalties caused by poorly configured systems, simulation is often used to predict the performance of key applications to be executed on the new systems. Simulation provides the capability to observe component and system characteristics (e.g., performance and power) in order to make vital design decisions. However, simulating high-fidelity models can be very time consuming and even prohibitive when evaluating large-scale systems. The Fast and Accurate Simulation Environment (FASE) framework seeks to support large-scale system simulation by using high-fidelity models to capture the behavior of only the performance-critical components while employing abstraction techniques to capture the effects of those components with little impact on the system. To achieve this balance of accuracy and simulation speed, FASE provides a methodology and associated toolset to evaluate numerous architectural options. This approach allows users to make system design decisions based on quantifiable demands of their key applications rather than using manual analysis which can be error prone and impractical for large systems. The framework accomplishes this evaluation through a novel approach of combining discrete-event simulation with an application characterization scheme in order to remove unnecessary details while focusing on components critical to the performance of the application. In addition, FASE is extended to support in-depth availability analyses and quick evaluations of data-intensive applications. In this document, we present the methodology and techniques behind FASE and include several case studies validating systems constructed using various applications and interconnects. The studies show that FASE produces results with acceptable accuracy (i.e., maximum error of 23.3% and under 6% in most cases) when predicting the performance of complex applications executing on HPC systems. Furthermore, when using FASE to analyze data-intensive applications, the framework achieves over 1500x speedup with less than 1% error when compared to the traditional, function-level modeling approach. ( en )
Advisors/Committee Members: George, Alan D. (committee chair), Figueiredo, Renato J. (committee member), Li, Tao (committee member), Fishwick, Paul A. (committee member).
Subjects/Keywords: Analytical models; Architectural models; Datasets; Libraries; Modeling; Parametric models; Personnel evaluation; Scalability; Simulations; Systems design; hpc, hpec, simulation
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APA (6th Edition):
Grobelny, E. (2008). Fast and Accurate Simulation Environment (FASE) for High-Performance Computing Systems and Applications. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0022068
Chicago Manual of Style (16th Edition):
Grobelny, Eric. “Fast and Accurate Simulation Environment (FASE) for High-Performance Computing Systems and Applications.” 2008. Doctoral Dissertation, University of Florida. Accessed April 21, 2021.
https://ufdc.ufl.edu/UFE0022068.
MLA Handbook (7th Edition):
Grobelny, Eric. “Fast and Accurate Simulation Environment (FASE) for High-Performance Computing Systems and Applications.” 2008. Web. 21 Apr 2021.
Vancouver:
Grobelny E. Fast and Accurate Simulation Environment (FASE) for High-Performance Computing Systems and Applications. [Internet] [Doctoral dissertation]. University of Florida; 2008. [cited 2021 Apr 21].
Available from: https://ufdc.ufl.edu/UFE0022068.
Council of Science Editors:
Grobelny E. Fast and Accurate Simulation Environment (FASE) for High-Performance Computing Systems and Applications. [Doctoral Dissertation]. University of Florida; 2008. Available from: https://ufdc.ufl.edu/UFE0022068
University of Florida
6.
Jeon, Sanghyun.
Adaptive E-Learning Using ECpAA Rules, Bayesian Networks and Group Profile and Performance Data.
Degree: PhD, Computer Engineering - Computer and Information Science and Engineering, 2010, University of Florida
URL: https://ufdc.ufl.edu/UFE0042418
► In order to deliver individualized instruction to learners, an adaptive e-Learning system must be able to perform content selection, sequencing and presentation, and to control…
(more)
▼ In order to deliver individualized instruction to learners, an adaptive e-Learning system must be able to perform content selection, sequencing and presentation, and to control learners navigation through content based on their different profiles and performances. However, the profile data provided by learners and the performance data gathered by a system may be incomplete, inaccurate, or contradictory. This dissertation presents techniques and features, which alleviate the above data problems by evaluating the profile and performance data of each new learner probabilistically based on the profile and performance data of earlier learners. We present the methodology for the construction, search, and selection of learning objects. Our probabilistic rule model allows our system to apply adaptation rules to examine learners data at various stages of processing a learning activity, and make proper adaptation decisions even though the learners data may have anomalies. Adaptation rules are processed by a rule engine and a Bayesian Model Processor. Content authors are provided with system facilities to define adaptation rules and Bayesian Models. The prior distribution of a Bayesian model is automatically derived by using the formulas presented in this work together with prior probabilities and weights assigned by the content author or the instructor. Each new learner s profile and performance data are used to update the prior distribution, which is then used to evaluate the next new learner. The system thus continues to improve the accuracy of learner evaluation as well as its adaptive capability. Two applications have been developed to demonstrate several features of adaptation: namely, construction of self-contained and reusable learning objects, dynamic content search and selection, event and rule-based processing of learning objects at six adaptation points, probabilistic specification and evaluation of rule conditions using Bayesian Models, and the support of personalized learning depending on a learner's profile and performance as well as the characteristics of content. Several simulations have been conducted to handle data anomalies, and verify our proposed formulas for deriving the conditional probabilities needed for Bayesian inference. The system architecture and implementation of an adaptive e-learning system are also presented. ( en )
Advisors/Committee Members: Su, Stanley Y. (committee chair), Lok, Benjamin C. (committee member), Helal, Abdelsalam A. (committee member), Fishwick, Paul A. (committee member), Lampotang, Samsun (committee member).
Subjects/Keywords: Bayesian networks; Conditional probabilities; Educational activities; Electronic learning; Gels; Learning; Learning styles; Machine learning; Metadata; Simulations; adaptive, bayesian, composite, data, e, group, learning, model, network, objects, personalised, probabilistic, profile, rule
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APA ·
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APA (6th Edition):
Jeon, S. (2010). Adaptive E-Learning Using ECpAA Rules, Bayesian Networks and Group Profile and Performance Data. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0042418
Chicago Manual of Style (16th Edition):
Jeon, Sanghyun. “Adaptive E-Learning Using ECpAA Rules, Bayesian Networks and Group Profile and Performance Data.” 2010. Doctoral Dissertation, University of Florida. Accessed April 21, 2021.
https://ufdc.ufl.edu/UFE0042418.
MLA Handbook (7th Edition):
Jeon, Sanghyun. “Adaptive E-Learning Using ECpAA Rules, Bayesian Networks and Group Profile and Performance Data.” 2010. Web. 21 Apr 2021.
Vancouver:
Jeon S. Adaptive E-Learning Using ECpAA Rules, Bayesian Networks and Group Profile and Performance Data. [Internet] [Doctoral dissertation]. University of Florida; 2010. [cited 2021 Apr 21].
Available from: https://ufdc.ufl.edu/UFE0042418.
Council of Science Editors:
Jeon S. Adaptive E-Learning Using ECpAA Rules, Bayesian Networks and Group Profile and Performance Data. [Doctoral Dissertation]. University of Florida; 2010. Available from: https://ufdc.ufl.edu/UFE0042418
University of Florida
7.
Praing, Reasey.
Moving Balloon Algebra Design, Implementation, and Database Integration of a Spatiotemporal Data Model for Historical and Predictive Moving Objects.
Degree: PhD, Computer Engineering - Computer and Information Science and Engineering, 2008, University of Florida
URL: https://ufdc.ufl.edu/UFE0022558
► Spatiotemporal databases deal with geometries changing over time. Recently, moving objects like moving points and moving regions have been the focus of research. They represent…
(more)
▼ Spatiotemporal databases deal with geometries changing over time. Recently, moving objects like moving points and moving regions have been the focus of research. They represent time-dependent geometries that continuously change their location and/or extent and are interesting for many disciplines including the geosciences, geographical information science, moving objects databases, location-based services, robotics, and mobile computing. So far, a few moving object data models and query languages have been proposed. Each of them supports either exclusively historical movements relating to the past or exclusively predicted movements relating to the future. Thus, the query support for each model is limited by the type of supported movements. This presents a problem in modeling the dynamic nature of a moving object when both its known historical movement and its predicted future movement are desired to be simultaneously managed and made available for spatiotemporal operations and queries. Furthermore, current definitions of moving objects are too general and rather vague. It is unclear how a moving object is allowed to move or evolve through space and time. That is, the properties of movement (like its continuity) have not been precisely specified. It is also unclear how, in a database context, future predictions of a moving object can be modeled taking into account the inherent uncertainty of future evolution. Moreover, implementations of spatiotemporal data types and operations are rare and their integration into extensible database management systems has been so far nonexistent. In this research, we present a new type system and query language called Moving Balloon Algebra consisting of a moving object model that is able to represent the dynamic nature of moving objects while providing integrated and seamless support for both historical and predicted movements of moving objects. The goal is to go beyond existing moving object models by collectively integrating existing functionalities as well as introducing new ones. From a conceptual standpoint, this algebra provides a formal definition of novel spatiotemporal data types, operations, and predicates as well as introduces new types of spatiotemporal queries. Beside these conceptual contributions, an implementation of the algebra is provided in the form of a database-independent type system library, and its integration into a relational database management system is demonstrated. ( en )
Advisors/Committee Members: Schneider, Markus (committee chair), Kahveci, Tamer (committee member), Dobra, Alin (committee member), Fishwick, Paul A. (committee member), Wong, Tan F. (committee member).
Subjects/Keywords: Algebra; Balloons; Boundary points; Data models; Data types; Databases; Hurricanes; Matrices; Modeling; Spatial data; balloon, database, evolution, historical, model, movement, moving, predicates, predictive, spatiotemporal
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APA ·
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APA (6th Edition):
Praing, R. (2008). Moving Balloon Algebra Design, Implementation, and Database Integration of a Spatiotemporal Data Model for Historical and Predictive Moving Objects. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0022558
Chicago Manual of Style (16th Edition):
Praing, Reasey. “Moving Balloon Algebra Design, Implementation, and Database Integration of a Spatiotemporal Data Model for Historical and Predictive Moving Objects.” 2008. Doctoral Dissertation, University of Florida. Accessed April 21, 2021.
https://ufdc.ufl.edu/UFE0022558.
MLA Handbook (7th Edition):
Praing, Reasey. “Moving Balloon Algebra Design, Implementation, and Database Integration of a Spatiotemporal Data Model for Historical and Predictive Moving Objects.” 2008. Web. 21 Apr 2021.
Vancouver:
Praing R. Moving Balloon Algebra Design, Implementation, and Database Integration of a Spatiotemporal Data Model for Historical and Predictive Moving Objects. [Internet] [Doctoral dissertation]. University of Florida; 2008. [cited 2021 Apr 21].
Available from: https://ufdc.ufl.edu/UFE0022558.
Council of Science Editors:
Praing R. Moving Balloon Algebra Design, Implementation, and Database Integration of a Spatiotemporal Data Model for Historical and Predictive Moving Objects. [Doctoral Dissertation]. University of Florida; 2008. Available from: https://ufdc.ufl.edu/UFE0022558
University of Florida
8.
Quarles, John.
The Design and Evaluation of a Mixed Reality Approach to Interactively Blend Dynamic Models with Corresponding Physical Phenomena.
Degree: PhD, Computer Engineering - Computer and Information Science and Engineering, 2009, University of Florida
URL: https://ufdc.ufl.edu/UFE0024267
► People understand how to interact with the objects in the world around them (e.g., an ATM machine, a car) but most people do not understand…
(more)
▼ People understand how to interact with the objects in the world around them (e.g., an ATM machine, a car) but most people do not understand how these objects operate internally. Moreover, even with an abstract knowledge (e.g., a schematic) of an object, it still may be difficult to apply this knowledge in the context of the real object. To address this challenge, this work presents an interactive approach called a mixed simulator that superimposes abstract visualizations over the corresponding real objects and improves overall understanding of the objects in the surrounding world. For example, to address this challenge in anesthesia education we engineered the Augmented Anesthesia Machine (AAM) - a mixed simulator that superimposes a dynamic, abstract model of a generic anesthesia machine over a real anesthesia machine. Moreover, the machine and dynamic model are synchronized, enabling students to interact with the model through their physical interaction with the machine, such as turning knobs. Students can then visualize how their physical interactions affect the internal workings (e.g., gas flow dynamics) of the machine, effectively affording students abstract 'x-ray vision'. We evaluated the mixed simulator approach in a formal study that investigated the educational benefits specific to mixed simulators. The study compared mixed simulators to several other types of currently used training simulators. Overall we found that mixed simulators compensated for low spatial cognition and more effectively helped users to transfer their abstract knowledge into real world scenarios. To extend mixed simulators, we engineered a novel immersive visualization approach that enabled students and educators to aggregate, filter, visualize, and review massive amounts of previous student interaction data. An informal study suggested that this immersive approach for after action review (AAR) may give students and educators insight into the elusive thought processes and misconceptions of students. Finally, we generalized mixed simulators in both software and theoretical frameworks for a more effective design and implementation process. The theoretical framework enables engineers to classify and design mixed simulators based on the educational needs of an application. The software framework supports engineers with a code infrastructure and an authoring tool for efficient implementation of mixed simulators. ( en )
Advisors/Committee Members: Lok, Benjamin C. (committee chair), Fishwick, Paul A. (committee member), Ho, Jeffrey (committee member), Fischler, Ira S. (committee member), Lampotang, Samsun (committee member).
Subjects/Keywords: Anesthesia; Cognition; Dynamic modeling; Flowmeters; Gas flow; Machinery; Modeling; Simulation training; Simulations; Three dimensional modeling; anesthesia, augmented, interaction, learning, mixed, modeling, reality, simulation, virtual
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APA ·
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APA (6th Edition):
Quarles, J. (2009). The Design and Evaluation of a Mixed Reality Approach to Interactively Blend Dynamic Models with Corresponding Physical Phenomena. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0024267
Chicago Manual of Style (16th Edition):
Quarles, John. “The Design and Evaluation of a Mixed Reality Approach to Interactively Blend Dynamic Models with Corresponding Physical Phenomena.” 2009. Doctoral Dissertation, University of Florida. Accessed April 21, 2021.
https://ufdc.ufl.edu/UFE0024267.
MLA Handbook (7th Edition):
Quarles, John. “The Design and Evaluation of a Mixed Reality Approach to Interactively Blend Dynamic Models with Corresponding Physical Phenomena.” 2009. Web. 21 Apr 2021.
Vancouver:
Quarles J. The Design and Evaluation of a Mixed Reality Approach to Interactively Blend Dynamic Models with Corresponding Physical Phenomena. [Internet] [Doctoral dissertation]. University of Florida; 2009. [cited 2021 Apr 21].
Available from: https://ufdc.ufl.edu/UFE0024267.
Council of Science Editors:
Quarles J. The Design and Evaluation of a Mixed Reality Approach to Interactively Blend Dynamic Models with Corresponding Physical Phenomena. [Doctoral Dissertation]. University of Florida; 2009. Available from: https://ufdc.ufl.edu/UFE0024267
University of Florida
9.
Rossen, Brent Harte.
Design and Evaluation of Conversational Modeling Methods for Interpersonal Simulation.
Degree: PhD, Computer Engineering - Computer and Information Science and Engineering, 2011, University of Florida
URL: https://ufdc.ufl.edu/UFE0043690
► Interpersonal skills practice using virtual humans offers structured learning of interview skills, provides standardization of practice, and can facilitate learning about unusual conditions. However, the…
(more)
▼ Interpersonal skills practice using virtual humans offers structured learning of interview skills, provides standardization of practice, and can facilitate learning about unusual conditions. However, the creation of virtual humans with the ability to understand and respond to natural language requires costly engineering by conversation knowledge engineers (generally computer scientists), and incurs logistical cost for acquiring domain knowledge from domain experts (generally educators). We address these problems using two novel methods entitled Human-centered Distributed Conversational Modeling and Conversational Knowledge Reuse. These methods facilitate collaborative development of virtual humans by two groups of end-users: domain experts (educators) and domain novices (students). We implemented these methods in a web-based authoring tool called Virtual People Factory. Using Virtual People Factory, medical and pharmacy educators create natural language virtual patient interactions. This dissertation presents the theoretical background for Human-centered Distributed Conversational Modeling and Conversational Knowledge Reuse; the implementation of the Virtual People Factory authoring tools; and studies showing that these methods have reduced the logistical cost of acquiring knowledge and thereby improved the feasibility of applying virtual human based interpersonal simulation to real-world education. ( en )
Advisors/Committee Members: Lok, Benjamin C (committee chair), Fishwick, Paul A (committee member), Dankel, Douglas D (committee member), Robinson, Michael E (committee member), Cendan, Juan (committee member).
Subjects/Keywords: Conversation; Drug interactions; Educational evaluation; Health care industry; Interpersonal interaction; Medical students; Modeling; Simulations; Social interaction; Training devices; acquisition – ai – hci – healthcare – knowledge – medicine – virtual; City of Gainesville ( local )
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APA (6th Edition):
Rossen, B. H. (2011). Design and Evaluation of Conversational Modeling Methods for Interpersonal Simulation. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0043690
Chicago Manual of Style (16th Edition):
Rossen, Brent Harte. “Design and Evaluation of Conversational Modeling Methods for Interpersonal Simulation.” 2011. Doctoral Dissertation, University of Florida. Accessed April 21, 2021.
https://ufdc.ufl.edu/UFE0043690.
MLA Handbook (7th Edition):
Rossen, Brent Harte. “Design and Evaluation of Conversational Modeling Methods for Interpersonal Simulation.” 2011. Web. 21 Apr 2021.
Vancouver:
Rossen BH. Design and Evaluation of Conversational Modeling Methods for Interpersonal Simulation. [Internet] [Doctoral dissertation]. University of Florida; 2011. [cited 2021 Apr 21].
Available from: https://ufdc.ufl.edu/UFE0043690.
Council of Science Editors:
Rossen BH. Design and Evaluation of Conversational Modeling Methods for Interpersonal Simulation. [Doctoral Dissertation]. University of Florida; 2011. Available from: https://ufdc.ufl.edu/UFE0043690
University of Florida
10.
Kim, Min.
Symmetric Box-Splines on Root Lattices.
Degree: PhD, Computer Engineering - Computer and Information Science and Engineering, 2008, University of Florida
URL: https://ufdc.ufl.edu/UFE0022619
► Due to their highly symmetric structure, in arbitrary dimensions root lattices are considered as efficient sampling lattices for reconstructing isotropic signals. Among the root lattices…
(more)
▼ Due to their highly symmetric structure, in arbitrary dimensions root lattices are considered as efficient sampling lattices for reconstructing isotropic signals. Among the root lattices the Cartesian lattice is widely used since it naturally matches the Cartesian coordinates. However, in low dimensions, non-Cartesian root lattices have been shown to be more efficient sampling lattices. For reconstruction we turn to a specific class of multivariate splines. Multivariate splines have played an important role in approximation theory. In particular, box-splines, a generalization of univariate uniform B-splines to multiple variables, can be used to approximate continuous fields sampled on the Cartesian lattice in arbitrary dimensions. Box-splines on non-Cartesian lattices have been used limited to at most dimension three. This dissertation investigates symmetric box-splines as reconstruction filters on root lattices (including the Cartesian lattice) in arbitrary dimensions. These box-splines are constructed by leveraging the directions inherent in each lattice. For each box-spline, its degree, continuity and the linear independence of the sequence of its shifts are established. Quasi-interpolants for quick approximation of continuous fields are derived. We show that some of the box-splines agree with known constructions in low dimensions. For fast and exact evaluation, we show that and how the splines can be efficiently evaluated via their BB(Bernstein-Bezier)-forms. This relies on a technique to compute their exact (rational) BB-coefficients. As an application, volumetric data reconstruction on the FCC (Face-Centered Cubic) lattice is implemented and compared with reconstruction on the Cartesian lattice. ( en )
Advisors/Committee Members: Peters, Jorg (committee chair), Rangarajan, Anand (committee member), Ungor, Alper (committee member), Fishwick, Paul A. (committee member), Groisser, David J. (committee member).
Subjects/Keywords: Approximation; Boxes; Cartesianism; Conceptual lattices; Face centered cubic lattices; Mathematical lattices; Matrices; Polynomials; Root systems; Tetrahedrons
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APA (6th Edition):
Kim, M. (2008). Symmetric Box-Splines on Root Lattices. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0022619
Chicago Manual of Style (16th Edition):
Kim, Min. “Symmetric Box-Splines on Root Lattices.” 2008. Doctoral Dissertation, University of Florida. Accessed April 21, 2021.
https://ufdc.ufl.edu/UFE0022619.
MLA Handbook (7th Edition):
Kim, Min. “Symmetric Box-Splines on Root Lattices.” 2008. Web. 21 Apr 2021.
Vancouver:
Kim M. Symmetric Box-Splines on Root Lattices. [Internet] [Doctoral dissertation]. University of Florida; 2008. [cited 2021 Apr 21].
Available from: https://ufdc.ufl.edu/UFE0022619.
Council of Science Editors:
Kim M. Symmetric Box-Splines on Root Lattices. [Doctoral Dissertation]. University of Florida; 2008. Available from: https://ufdc.ufl.edu/UFE0022619
University of Florida
11.
Nghiem, Vinh.
A Computational Approach to Contextual Internet Search using Mutual Information with Lexico-Syntactic Patterns.
Degree: PhD, Computer Engineering - Computer and Information Science and Engineering, 2009, University of Florida
URL: https://ufdc.ufl.edu/UFE0041238
Subjects/Keywords: Diseases; Google; Information search; Internet search systems; Religion; Search engines; War; Web pages; Words; World wars
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Chicago ·
MLA ·
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APA (6th Edition):
Nghiem, V. (2009). A Computational Approach to Contextual Internet Search using Mutual Information with Lexico-Syntactic Patterns. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0041238
Chicago Manual of Style (16th Edition):
Nghiem, Vinh. “A Computational Approach to Contextual Internet Search using Mutual Information with Lexico-Syntactic Patterns.” 2009. Doctoral Dissertation, University of Florida. Accessed April 21, 2021.
https://ufdc.ufl.edu/UFE0041238.
MLA Handbook (7th Edition):
Nghiem, Vinh. “A Computational Approach to Contextual Internet Search using Mutual Information with Lexico-Syntactic Patterns.” 2009. Web. 21 Apr 2021.
Vancouver:
Nghiem V. A Computational Approach to Contextual Internet Search using Mutual Information with Lexico-Syntactic Patterns. [Internet] [Doctoral dissertation]. University of Florida; 2009. [cited 2021 Apr 21].
Available from: https://ufdc.ufl.edu/UFE0041238.
Council of Science Editors:
Nghiem V. A Computational Approach to Contextual Internet Search using Mutual Information with Lexico-Syntactic Patterns. [Doctoral Dissertation]. University of Florida; 2009. Available from: https://ufdc.ufl.edu/UFE0041238
University of Florida
12.
Nieten,Daniel Apollo.
An Unsupervised Learning Approach for Automatic Detection of Metaphors.
Degree: PhD, Computer Engineering - Computer and Information Science and Engineering, 2011, University of Florida
URL: https://ufdc.ufl.edu/UFE0043363
► Metaphors were once thought to only be rhetorical and decorative language relegated to poets and politicians with no cognitive significance. In reality metaphors are pervasive…
(more)
▼ Metaphors were once thought to only be rhetorical and decorative language relegated to poets and politicians with no cognitive significance. In reality metaphors are pervasive in verbal, written, and visual communications and are key in the methods that we use to learn and recall information. They are used to describe the similarities between two different concepts, to provide a symbolic representation of something abstract, to define relationships, interactions, or mappings between two concepts, object, events, or ideas that are literally not related and not just as rhetorical devices. This makes metaphors essential as teaching devices and of significant value in communication and not just nice decorative language. However, due to the abstract nature of the concepts that compose metaphors, they can be difficult for Natural Language Processing (NLP) tools to detect and categorize.
Advisors/Committee Members: Fishwick, Paul A (committee chair), Wilson, Joseph N (committee member), Dankel, Douglas D (committee member), Helal, Abdelsalam A (committee member), Koehler, Gary J (committee member).
Subjects/Keywords: Computational linguistics; Heuristics; Hierarchical relationships; Metaphors; Nouns; Parts of speech; Semantics; Sentences; Verbs; Words; measurement – metaphor – semantic – similarity – unsupervised
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APA (6th Edition):
Apollo, N. (2011). An Unsupervised Learning Approach for Automatic Detection of Metaphors. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0043363
Chicago Manual of Style (16th Edition):
Apollo, Nieten,Daniel. “An Unsupervised Learning Approach for Automatic Detection of Metaphors.” 2011. Doctoral Dissertation, University of Florida. Accessed April 21, 2021.
https://ufdc.ufl.edu/UFE0043363.
MLA Handbook (7th Edition):
Apollo, Nieten,Daniel. “An Unsupervised Learning Approach for Automatic Detection of Metaphors.” 2011. Web. 21 Apr 2021.
Vancouver:
Apollo N. An Unsupervised Learning Approach for Automatic Detection of Metaphors. [Internet] [Doctoral dissertation]. University of Florida; 2011. [cited 2021 Apr 21].
Available from: https://ufdc.ufl.edu/UFE0043363.
Council of Science Editors:
Apollo N. An Unsupervised Learning Approach for Automatic Detection of Metaphors. [Doctoral Dissertation]. University of Florida; 2011. Available from: https://ufdc.ufl.edu/UFE0043363
University of Florida
13.
Park, Hyung.
Parallel Discrete Event Simulation of Queuing Networks Using GPU-Based Hardware Acceleration.
Degree: PhD, Computer Engineering - Computer and Information Science and Engineering, 2009, University of Florida
URL: https://ufdc.ufl.edu/UFE0041160
► Queuing networks are used widely in computer simulation studies. Examples of queuing networks can be found in areas such as the supply chains, manufacturing work…
(more)
▼ Queuing networks are used widely in computer simulation studies. Examples of queuing networks can be found in areas such as the supply chains, manufacturing work flow, and internet routing. If the networks are fairly small in size and complexity, it is possible to create discrete event simulations of the networks without incurring significant delays in analyzing the system. However, as the networks grow in size, such analysis can be time consuming and thus require more expensive parallel processing computers or clusters. The trend in computing architectures has been toward multicore central processing units (CPUs) and graphics processing units (GPUs). A GPU is the fairly inexpensive hardware, and found in most recent computing platforms, but practical example of single instruction, multiple data (SIMD) architectures. The majority of studies using the GPU within the graphics and simulation communities have focused on the use of the GPU for models that are traditionally simulated using regular time increments, whether these increments are accomplished through the addition of a time delta (i.e., numerical integration) or event scheduling using the delta (i.e., discrete event approximations of continuous-time systems). These types of models have the property of being decomposable over a variable or parameter space. In prior studies, discrete event simulation, such as a queuing network simulation, has been characterized as being an inefficient application for the GPU primarily due to the inherent synchronicity of the GPU organization and an apparent mismatch between the classic event scheduling cycle and the GPUs basic functionality. However, we have found that irregular time advances of the sort common in discrete event models can be successfully mapped to a GPU, thus making it possible to execute discrete event systems on an inexpensive personal computer platform. This dissertation introduces a set of tools that allows the analyst to simulate queuing networks in parallel using a GPU. We then present an analysis of a GPU-based algorithm, describing benefits and issues with the GPU approach. The algorithm clusters events, achieving speedup at the expense of an approximation error which grows as the cluster size increases. We were able to achieve 10-x speedup using our approach with a small error in the output statistics of the general network topology. This error can be mitigated, based on error analysis trends, obtaining reasonably accurate output statistics. ( en )
Advisors/Committee Members: Fishwick, Paul A. (committee chair), Peir, Jih-Kwon (committee member), Lok, Benjamin C. (committee member), Chen, Shigang (committee member), Beck, Howard W. (committee member).
Subjects/Keywords: Computer memory; Customers; Data models; Error rates; Modeling; Scheduling; Service time; Simulations; Statistical models; Statistics; cuda, discrete, event, gpu, parallel, queuing, simulation
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APA ·
Chicago ·
MLA ·
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CSE |
Export
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APA (6th Edition):
Park, H. (2009). Parallel Discrete Event Simulation of Queuing Networks Using GPU-Based Hardware Acceleration. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0041160
Chicago Manual of Style (16th Edition):
Park, Hyung. “Parallel Discrete Event Simulation of Queuing Networks Using GPU-Based Hardware Acceleration.” 2009. Doctoral Dissertation, University of Florida. Accessed April 21, 2021.
https://ufdc.ufl.edu/UFE0041160.
MLA Handbook (7th Edition):
Park, Hyung. “Parallel Discrete Event Simulation of Queuing Networks Using GPU-Based Hardware Acceleration.” 2009. Web. 21 Apr 2021.
Vancouver:
Park H. Parallel Discrete Event Simulation of Queuing Networks Using GPU-Based Hardware Acceleration. [Internet] [Doctoral dissertation]. University of Florida; 2009. [cited 2021 Apr 21].
Available from: https://ufdc.ufl.edu/UFE0041160.
Council of Science Editors:
Park H. Parallel Discrete Event Simulation of Queuing Networks Using GPU-Based Hardware Acceleration. [Doctoral Dissertation]. University of Florida; 2009. Available from: https://ufdc.ufl.edu/UFE0041160
University of Florida
14.
Park, Joo Won.
Analysis of Ethnomusicological Field Recordings Using Electroacoustic Listening Methods.
Degree: PhD, Music, 2008, University of Florida
URL: https://ufdc.ufl.edu/UFE0022039
► This study is an analysis and evaluation of ethnomusicological field recordings based on electroacoustic music listening methods. The study surveys canonical electroacoustic listening methods and…
(more)
▼ This study is an analysis and evaluation of ethnomusicological field recordings based on electroacoustic music listening methods. The study surveys canonical electroacoustic listening methods and ethnomusicological research methods with regards to audio ethnography. Selected electroacoustic listening methods are used to interpret existing ethnomusicological field recordings, looking at ways in which these methods help ethnomusicologists better achieve their research goals. The study reveals that electroacoustic music listening methods aid ethnomusicologists in guiding their reception and interpretation of field recordings. ( en )
Advisors/Committee Members: Sain, James P. (committee chair), Richards, Paul S. (committee member), Koonce, Paul C. (committee member), Crook, Larry N. (committee member), Fishwick, Paul A. (committee member).
Subjects/Keywords: Audio recordings; Electroacoustics; Ethnomusicology; Listening; Music analysis; Music appreciation; Musical performance; Rain forests; Sound; Spectroscopic analysis; electroacoustic, ethnomusicology, listening, music; City of Gainesville ( local )
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APA ·
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APA (6th Edition):
Park, J. W. (2008). Analysis of Ethnomusicological Field Recordings Using Electroacoustic Listening Methods. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0022039
Chicago Manual of Style (16th Edition):
Park, Joo Won. “Analysis of Ethnomusicological Field Recordings Using Electroacoustic Listening Methods.” 2008. Doctoral Dissertation, University of Florida. Accessed April 21, 2021.
https://ufdc.ufl.edu/UFE0022039.
MLA Handbook (7th Edition):
Park, Joo Won. “Analysis of Ethnomusicological Field Recordings Using Electroacoustic Listening Methods.” 2008. Web. 21 Apr 2021.
Vancouver:
Park JW. Analysis of Ethnomusicological Field Recordings Using Electroacoustic Listening Methods. [Internet] [Doctoral dissertation]. University of Florida; 2008. [cited 2021 Apr 21].
Available from: https://ufdc.ufl.edu/UFE0022039.
Council of Science Editors:
Park JW. Analysis of Ethnomusicological Field Recordings Using Electroacoustic Listening Methods. [Doctoral Dissertation]. University of Florida; 2008. Available from: https://ufdc.ufl.edu/UFE0022039
University of Florida
15.
Johnsen, Kyle.
Design and Validation of a Virtual Human System for Interpersonal Skills Education.
Degree: PhD, Computer Engineering - Computer and Information Science and Engineering, 2008, University of Florida
URL: https://ufdc.ufl.edu/UFE0022560
► Training interpersonal skills requires availability, standardization, and diversity of practice interpersonal scenarios. To meet these requirements, we proposed a concept for an interpersonal simulator with…
(more)
▼ Training interpersonal skills requires availability, standardization, and diversity of practice interpersonal scenarios. To meet these requirements, we proposed a concept for an interpersonal simulator with a natural interface. We implemented a proof-of concept, called the IPS. We demonstrated that the IPS elicited user performance that was indicative of real world interpersonal skills, making the IPS a powerful tool for interpersonal skills education. To do this, we collaborated with healthcare educators to construct an interpersonal skills training experience using the IPS, called the VOSCE. The VOSCE simulated a patient encounter, and provided feedback on user performance. By conducting pilot studies with the VOSCE, we assessed and improved the usability and acceptability of the IPS for interpersonal skills training. Next, we demonstrated the validity of the VOSCE. An experiment was conducted, which compared user performance in the VOSCE to user performance in a similar real-life interaction. Results showed that performance was significantly correlated, implying that the VOSCE was a valid interpersonal skills evaluation tool. Finally, we demonstrated that changes to the natural interface of the IPS influenced user performance. A significant component of the IPS was the visual display. To provide insight into how changing the visual display component affected interaction with a virtual human, we designed two comparative user studies. The first study compared two immersive visual displays ? a large-screen projection display and a more immersive head-mounted display. Results suggested that higher immersion may impair users? ability to accurately reflect upon their own performance. Participants in the head-mounted display condition were less accurate in evaluating their use of empathy. Following up on results from the first study, the second study compared two non immersive visual displays?a plasma television and a smaller computer monitor. Results suggested that displays that enable life-size scale virtual humans enhance user performance. Participants in the plasma television condition were more engaged, empathetic, pleasant, and natural. ( en )
Advisors/Committee Members: Lok, Benjamin C. (committee chair), Fishwick, Paul A. (committee member), Peters, Jorg (committee member), Gader, Paul D. (committee member), Ferdig, Richard E. (committee member).
Subjects/Keywords: Display devices; Educational evaluation; Empathy; Gestures; Interpersonal interaction; Medical students; Simulations; Social interaction; Social skills; Student evaluation; education, human, medical, virtual
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APA ·
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MLA ·
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APA (6th Edition):
Johnsen, K. (2008). Design and Validation of a Virtual Human System for Interpersonal Skills Education. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0022560
Chicago Manual of Style (16th Edition):
Johnsen, Kyle. “Design and Validation of a Virtual Human System for Interpersonal Skills Education.” 2008. Doctoral Dissertation, University of Florida. Accessed April 21, 2021.
https://ufdc.ufl.edu/UFE0022560.
MLA Handbook (7th Edition):
Johnsen, Kyle. “Design and Validation of a Virtual Human System for Interpersonal Skills Education.” 2008. Web. 21 Apr 2021.
Vancouver:
Johnsen K. Design and Validation of a Virtual Human System for Interpersonal Skills Education. [Internet] [Doctoral dissertation]. University of Florida; 2008. [cited 2021 Apr 21].
Available from: https://ufdc.ufl.edu/UFE0022560.
Council of Science Editors:
Johnsen K. Design and Validation of a Virtual Human System for Interpersonal Skills Education. [Doctoral Dissertation]. University of Florida; 2008. Available from: https://ufdc.ufl.edu/UFE0022560
. 
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