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Electronic Theses and Dissertations

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Robust, Scalable, And Provable Approaches To High Dimensional Unsupervised Learning, Mostafa Rahmani Jan 2018

Robust, Scalable, And Provable Approaches To High Dimensional Unsupervised Learning, Mostafa Rahmani

Electronic Theses and Dissertations

This doctoral thesis focuses on three popular unsupervised learning problems: subspace clustering, robust PCA, and column sampling. For the subspace clustering problem, a new transformative idea is presented. The proposed approach, termed Innovation Pursuit, is a new geometrical solution to the subspace clustering problem whereby subspaces are identified based on their relative novelties. A detailed mathematical analysis is provided establishing sufficient conditions for the proposed method to correctly cluster the data points. The numerical simulations with both real and synthetic data demonstrate that Innovation Pursuit notably outperforms the state-of-the-art subspace clustering algorithms. For the robust PCA problem, we focus on …

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Development Of Soil Compressibility Prediction Models, Scott Kirts Jan 2018

Development Of Soil Compressibility Prediction Models, Scott Kirts

Electronic Theses and Dissertations

The magnitude of the overall settlement depends on several variables such as the Compression Index, Cc, and Recompression Index, Cr, which are determined by a consolidation test; however, the test is time consuming and labor intensive. Correlations have been developed to approximate these compressibility indexes. In this study, a data driven approach has been employed in order to estimate Cc and Cr. Support Vector Machines classification is used to determine the number of distinct models to be developed. The statistical models are built through a forward selection stepwise regression procedure. Ten variables were used, including the moisture content (w), initial …

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Exploring Natural User Abstractions For Shared Perceptual Manipulator Task Modeling & Recovery, Senglee Koh Jan 2018

Exploring Natural User Abstractions For Shared Perceptual Manipulator Task Modeling & Recovery, Senglee Koh

Electronic Theses and Dissertations

State-of-the-art domestic robot assistants are essentially autonomous mobile manipulators capable of exerting human-scale precision grasps. To maximize utility and economy, non-technical end-users would need to be nearly as efficient as trained roboticists in control and collaboration of manipulation task behaviors. However, it remains a significant challenge given that many WIMP-style tools require superficial proficiency in robotics, 3D graphics, and computer science for rapid task modeling and recovery. But research on robot-centric collaboration has garnered momentum in recent years; robots are now planning in partially observable environments that maintain geometries and semantic maps, presenting opportunities for non-experts to cooperatively control task …

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Design Of Low-Capacitance Electrostatic Discharge (Esd) Protection Devices In Advanced Silicon Technologies., Aihua Dong Jan 2018

Design Of Low-Capacitance Electrostatic Discharge (Esd) Protection Devices In Advanced Silicon Technologies., Aihua Dong

Electronic Theses and Dissertations

Electrostatic discharge (ESD) related failure is a major IC reliability concern and this is particularly true as technology continues shrink to nano-metric dimensions. ESD design window research shows that ESD robustness of victim devices keep decreasing from 350nm bulk technology to 7nm FinFET technologies. In the meantime, parasitic capacitance of ESD diode with same It2 in FinFET technologies is approximately 3X compared with that in planar technologies. Thus transition from planar to FinFET technology requires more robust ESD protection however the large parasitic capacitance of ESD protection cell is problematic in high-speed interface design. To reduce the parasitic capacitance, a …

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Neither Teacher Nor Scholar: Identity And Agency In A Graduate Teacher's Life, Caitlin Pierson Jan 2018

Neither Teacher Nor Scholar: Identity And Agency In A Graduate Teacher's Life, Caitlin Pierson

Electronic Theses and Dissertations

This thesis examines how graduate student teachers (GTA's) employ agency in order to establish and perform professional identities. Understanding agency as interactional, performative, and acting in a way "unintended by power" (Butler, 1997, p. 15), this thesis examines the spatial practices and performances of a graduate student teacher through a mixed methods approach combining video recordings with autoethnography. This project begins by using Lefebvre's (1991) social imaginary to examine the potent arguments being made to and about GTA's from their shared office, using visual rhetorical analysis to examine how this space communicates ideas of identity and place that work at …

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E.A.I. Anxiety: Technopanic And Post-Human Potential, Zachary Mandell Jan 2018

E.A.I. Anxiety: Technopanic And Post-Human Potential, Zachary Mandell

Electronic Theses and Dissertations

Robots have been a part of the imagination of Western culture for centuries. The possibility for automation and artificial life has inspired the curiosity of thinkers like Leonardo Da Vinci who once designed a mechanical knight. It wasn't until the 19th century that automated machinery has become realized. The confrontation between human and automation has inspired a fear, referred to as "technopanic", that has been exacerbated in tandem with the evolution of technology. This thesis seeks to discover the historical precedence for these fears. I explore three modes of knowledge (Philosophy, Economics, and Film Theory) to examine the agendas behind …

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Exploring A Three-Dimensional Narrative Medium: The Theme Park As "De Sprookjessprokkelaar," The Gatherer And Teller Of Stories, Carissa Baker Jan 2018

Exploring A Three-Dimensional Narrative Medium: The Theme Park As "De Sprookjessprokkelaar," The Gatherer And Teller Of Stories, Carissa Baker

Electronic Theses and Dissertations

This dissertation examines the pervasiveness of storytelling in theme parks and establishes the theme park as a distinct narrative medium. It traces the characteristics of theme park storytelling, how it has changed over time, and what makes the medium unique. This was accomplished using a mixed methods approach drawing data from interviews with creative professionals, archival research, fieldwork, and an analysis of more than eight hundred narrative attractions. The survey of narrative attractions revealed the most common narrative expressions to be dark rides and stage shows. Source material tends to be cultural tales (legends, fairy tales) or intellectual properties (generally …

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Rewriting Patriarchal Norms In Academia: Invitational Rhetoric In A Crowdsourced Survey, Rachel Molko Jan 2018

Rewriting Patriarchal Norms In Academia: Invitational Rhetoric In A Crowdsourced Survey, Rachel Molko

Electronic Theses and Dissertations

This thesis seeks to understand the how texts are constructed to forward feminist communicative objectives through a case study of Dr. Karen Kelsky’s "A Crowdsourced Survey of Sexual Harassment in the Academy." In this research, sexual harassment is understood as an act of power, sexual in nature, enacted by faculty or staff (employed or contracted in different capacities) in their relations with other faculty or staff, who are often lower ranking. By adopting invitational rhetoric as a theoretical framework, this thesis examines the way Dr. Karen Kelsky's crowdsourced survey creates the space to articulate and elevate often suppressed personal testimony …

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The First Florida Cavalry (Us): Union Enlistment In The Civil War's Southern Periphery, Tyler Campbell Jan 2018

The First Florida Cavalry (Us): Union Enlistment In The Civil War's Southern Periphery, Tyler Campbell

Electronic Theses and Dissertations

In 1863, along the southern periphery of the American Civil War, a Union Brigadier General began recruiting Southern white men into a Union cavalry regiment known as the First Florida Cavalry (US). This study investigates the regiment and those who enlisted in it to show the fluidity of Southern loyalty during the Civil War and the conditions of the Deep South Homefront that existed on the periphery of Union occupation and continue to exist on the periphery of Civil War historiography. While scholars have recently addressed many aspects of Southern dissent in the Civil War, significantly less attention has been …

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Life, Death, And Awakening: As Seen In Reflections Of Nature, Diane Parks Jan 2018

Life, Death, And Awakening: As Seen In Reflections Of Nature, Diane Parks

Electronic Theses and Dissertations

My objective, in undertaking this three year MFA degree has been to create and produce metaphorical paintings which communicate my deepest feelings about my personal experiences of life, death, and nature using various types of landscapes as subject matter. My goal has been to explore many processes of painting, using a range of color palettes to suggest and inspire emotional responses from viewers that are similar to my own. Ultimately my intention has been to share feelings of empathy between myself and a viewer through the art I've produced. This thesis body of work chronicles my three year journey.

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The American Black Body: Materials,Symbols, And Representations From A Perceived African American, Christopher Santos Jan 2018

The American Black Body: Materials,Symbols, And Representations From A Perceived African American, Christopher Santos

Electronic Theses and Dissertations

As a Cape Verdean American, I investigate the idea of what it means to be of the African Diaspora in America. I also consider the experiences of past generations of American black bodies and how their history has molded my world. This series of work began with Mask Drawing 1, an ink drawing inspired by my own interpretation of an African mask. Subjected to colorism, the discrimination of a person based on their skin color, my skin was not enough validation for other people to view me as black. On numerous occasions I have had to clarify my identity, nationality …

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Whatever Happened To Blackwater Rd.?: A Visual Documentary Concerning Achievement In The Face Of Failure, Michael Stephenson Jan 2018

Whatever Happened To Blackwater Rd.?: A Visual Documentary Concerning Achievement In The Face Of Failure, Michael Stephenson

Electronic Theses and Dissertations

Whatever happened to Blackwater RD.? is a feature length documentary thesis film created and cultivated by Michael E. Stephenson to fulfill the requirements of the Master of Fine Arts degree in Entrepreneurial Digital Cinema while attending the University of Central Florida. Whatever happened to Blackwater RD.? has met these criteria of the School of Visual Arts and Design, in the College of Arts and Humanities, by being a feature length digital film with a budget no larger than $50,000. This film is the efforts of the filmmaker to trace the failure of his original narrative thesis film Blackwater RD., attempting …

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Differing Perspectives: Positive Accounts Of The Down To The Countryside Movement, Michael Nettina Jan 2018

Differing Perspectives: Positive Accounts Of The Down To The Countryside Movement, Michael Nettina

Electronic Theses and Dissertations

Despite the number of narratives regarding the negative outcomes and experiences of the Down to the Countryside Movement during the Cultural Revolution, there is a scarce amount of literature in the West regarding the fringe benefits of the movement. The historiography in the field is limited, with most Western writers only focusing on the unfortunate consequences of the movement, such as violence, rape, limited access to education, and the strain on families affected by the political movement. The purpose of this study is to give a voice to the Chinese sent-down youth whose positive thoughts on the Down to the …

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Momentum, Moment, Epiphany: The Psychological Intersection Of Motion Picture, The Still Frame, And Three-Dimensional Form, Mark Gerstein Jan 2018

Momentum, Moment, Epiphany: The Psychological Intersection Of Motion Picture, The Still Frame, And Three-Dimensional Form, Mark Gerstein

Electronic Theses and Dissertations

My journey from Hollywood Film production to a Fine Arts practice has been shaped by theory from Philosophy of Mind, Cognitive Psychology, Film, and Art, leading me to a new visual vocabulary at the intersection of motion picture, the still image, and three-dimensional form. I create large mixed media collages by projecting video onto photographs and sculptural forms, breaking the boundaries of the conventional film frame and exceeding the dynamic range of typical visual experience. My work explores emotional connections and fissures within family, and hidden meanings of haunting memories and familiar places. I am searching for an elusive type …

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To The Memory Of Brave Men: The Imperial War Graves Commission And India's Missing Soldiers Of The First World War, Roger Sims Jan 2018

To The Memory Of Brave Men: The Imperial War Graves Commission And India's Missing Soldiers Of The First World War, Roger Sims

Electronic Theses and Dissertations

This thesis examines the commemoration of Indian soldiers who died during the First World War by the Imperial War Graves Commission, Britain's official government body overseeing all imperial commemoration efforts. For the soldiers of the Indian Army their war experience was split between the Western Front in Europe and Mesopotamia in modern-day Iraq. They were also far more ethnically, religiously, and lingually diverse than their British and Dominion counterparts. In order to examine how geography, religion, and the imperial relationship affected Britain's commemoration of India's war dead, this study uses the Commission's own records to recreate how the IWGC created …

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Using Hashtags To Disambiguate Aboutness In Social Media Discourse: A Case Study Of #Orlandostrong, Nicholas Dearmas Jan 2018

Using Hashtags To Disambiguate Aboutness In Social Media Discourse: A Case Study Of #Orlandostrong, Nicholas Dearmas

Electronic Theses and Dissertations

While the field of writing studies has studied digital writing as a response to multiple calls for more research on digital forms of writing, research on hashtags has yet to build bridges between different disciplines' approaches to studying the uses and effects of hashtags. This dissertation builds that bridge in its interdisciplinary approach to the study of hashtags by focusing on how hashtags can be fully appreciated at the intersection of the fields of information research, linguistics, rhetoric, ethics, writing studies, new media studies, and discourse studies. Hashtags are writing innovations that perform unique digital functions rhetorically while still hearkening …

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Revisiting Roadside Attractions: A "Deep Dive" Into Florida's Weeki Wachee Springs, Rebecca Schwandt Jan 2018

Revisiting Roadside Attractions: A "Deep Dive" Into Florida's Weeki Wachee Springs, Rebecca Schwandt

Electronic Theses and Dissertations

This digital public history project explores one of the oldest and longest running of Florida's roadside attractions, Weeki Wachee Springs, during the years considered to be the park's heyday, the 1950s through the mid-1970s. With the 75th anniversary of the park approaching in 2022 and preliminary discussions of a new or expanded mermaid museum, there is a growing need to document the experiences of aging former employees and preserve park-related ephemera from that period. For this project six oral histories of former mermaids and former employees have been recorded, transcribed, and made publicly accessible through RICHES, the University of Central …

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Rebuilt And Remade: The Florida Citrus Industry, 1909-1939, James Padgett Jan 2018

Rebuilt And Remade: The Florida Citrus Industry, 1909-1939, James Padgett

Electronic Theses and Dissertations

Prior to orange juice concentrate, Florida citrus was already an industrialized agricultural sector. This thesis explores the early-20th-century Florida citrus industry and demonstrates that contemporary farming practices were influential in advancing how citrus was produced, processed, worked, marketed, and regulated in early-20th-century Florida. Restarted after devastating freezes in 1894-1895, resolute Florida growers rebuilt their groves into marvels of large-scale citrus fruit production. Continuing a legacy in experimental crossbreeding, improved varieties of citrus were developed to lengthen the season and markets. Advocated by nurserymen and university educators, biological innovation helped the citrus thrive in the 1910s and 1920s from adverse weather …

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Compressible Turbulent Flame Speed Of Highly Turbulent Standing Flames, Jonathan Sosa Jan 2018

Compressible Turbulent Flame Speed Of Highly Turbulent Standing Flames, Jonathan Sosa

Electronic Theses and Dissertations

This work presents the first measurement of turbulent burning velocities of a highly-turbulent compressible standing flame induced by shock-driven turbulence in a Turbulent Shock Tube. High-speed schlieren, chemiluminescence, PIV, and dynamic pressure measurements are made to quantify flame-turbulence interaction for high levels of turbulence at elevated temperatures and pressure. Distributions of turbulent velocities, vorticity and turbulent strain are provided for regions ahead and behind the standing flame. The turbulent flame speed is directly measured for the high-Mach standing turbulent flame. From measurements of the flame turbulent speed and turbulent Mach number, transition into a non-linear compressibility regime at turbulent Mach …

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A Study Of Eeg Signature Associated With Emotional And Stress Responses Due To Cyberbullying, Ashraf Alhujailli Jan 2018

A Study Of Eeg Signature Associated With Emotional And Stress Responses Due To Cyberbullying, Ashraf Alhujailli

Electronic Theses and Dissertations

The human brain processes vital information regarding human feelings. Prior research has focused on the problems of underage bullying, workplace bullying, burnout, mobbing and, most recently, cyberbullying. Scholars have traditionally examined the adverse outcomes of cyberbullying using subjective measures of stress and emotion for decades. However, very few studies examined cyberbullying using objective measures like EEG. The main goal of this study was to explore the relationship between the brain's EEG, expressed by the power spectral density, and emotions and stress due to two types of cyberbullying, specifically: 1) social exclusion, and 2) verbal harassment. This research also examined how …

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Evaluation And Augmentation Of Traffic Data From Private Sector And Bluetooth Detection System On Arterials, Yaobang Gong Jan 2018

Evaluation And Augmentation Of Traffic Data From Private Sector And Bluetooth Detection System On Arterials, Yaobang Gong

Electronic Theses and Dissertations

Traffic data are essential for public agencies to monitor the traffic condition of the roadway network in real-time. Recently, public agencies have implemented Bluetooth Detection Systems (BDS) on arterials to collect traffic data and purchased data directly from private sector vendors. However, the quality and reliability of the aforementioned two data sources are subject to rigorous evaluation. The thesis presents a study utilizing high-resolution GPS trajectories to evaluate data from HERE, one of the private sector data vendors, and BDS of arterial corridors in Orlando, Florida. The results showed that the accuracy and reliability of BDS data are better than …

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Influence Of Selected Factors On A Counselor's Attention Level To And Counseling Performance With A Virtual Human In A Virtual Counseling Session, John Hart Jan 2018

Influence Of Selected Factors On A Counselor's Attention Level To And Counseling Performance With A Virtual Human In A Virtual Counseling Session, John Hart

Electronic Theses and Dissertations

Virtual humans serve as role-players in social skills training environments simulating situational face-to-face conversations. Previous research indicates that virtual humans in instructional roles can increase a learner's engagement and motivation towards the training. Left unaddressed is if the learner is looking at the virtual human as one would in a human-to-human, face-to-face interaction. Using a modified version of the Emergent Leader Immersive Training Environment (ELITE-Lite), this study tracks visual attention and other behavior of 120 counselor trainees counseling a virtual human role-playing counselee. Specific study elements include: (1) the counselor's level of visual attention toward the virtual counselee; (2) how …

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Usda Instructional Risk Messages For High Pathogen Avian Influenza, Jenna Jones Jan 2018

Usda Instructional Risk Messages For High Pathogen Avian Influenza, Jenna Jones

Electronic Theses and Dissertations

High Pathogen Avian Influenza (HPAI) is a highly contagious disease threatening United States poultry farms. The aim of this study is to examine the extent to which current instructional risk communication by the United States Department of Agriculture (USDA) meets the expectations of existing literature, particularly the IDEA model. This study examined two documents produced by the USDA for the ongoing threat of HPAI, the Red Book and the Defend the Flock campaign. The aim of the documents is to provide U.S. poultry farmers and the publics with knowledge and information about prevention and response to HPAI. The IDEA model …

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Rumination And Executive Dysfunction: Risk Factors For Vascular Depression, David Brush Jan 2018

Rumination And Executive Dysfunction: Risk Factors For Vascular Depression, David Brush

Electronic Theses and Dissertations

Introduction: The widely-supported vascular depression hypothesis is underspecified with respect to cognitive mechanisms by which high cerebrovascular burden (CVB) and neuropathology relate to depressive symptoms. Integration of the vascular depression hypothesis with the CaR-FA-X model, a framework of affect regulation mechanisms, suggest that Rumination (R) and executive dysfunction (X) may increase due to altered recruitment of the dorsolateral prefrontal cortex resulting from high CVB and underlying neuropathology. This process would contribute to depressive symptomatology among older adults with high CVB. The progression of examined hypotheses included mediation models examining mechanistic relationships between predictors (CVB, DLPFC activation), cognitive correlates (rumination, executive …

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Attitudinal Trends In Support For Police Use Of Force Before And After Ferguson, Tashanda Dennison Jan 2018

Attitudinal Trends In Support For Police Use Of Force Before And After Ferguson, Tashanda Dennison

Electronic Theses and Dissertations

Since the 2014 death of an unarmed black teenager, Michael Brown by a white Ferguson police officer, there has been a string of similar incidents that have occurred in a relatively short period of time. These high profile incidents of police officers using questionable amounts of force have shaken public trust in law enforcement. Studies have shown that public confidence in law enforcement often erodes drastically following heavily publicized, controversial media reports of police misconduct (Tuch and Weitzer 1997; Weitzer 2002). The current levels of public outrage in response to allegations of police brutality have surpassed the levels of outrage …

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Characterizing Biogeochemical Shifts In Two Salix Caroliniana Michx. Encroached Freshwater Subtropical Marshes, Janet Ho Jan 2018

Characterizing Biogeochemical Shifts In Two Salix Caroliniana Michx. Encroached Freshwater Subtropical Marshes, Janet Ho

Electronic Theses and Dissertations

Shrub encroachment is a common disturbance in wetlands, but little is known about how shrub encroachment impacts functions such as carbon (C) storage and nitrogen (N) cycling. The objective of this thesis was to identify differences in physiochemical properties (within soil, water and leaf tissue) and biogeochemical processes (soil respiration, enzyme activity, litter decomposition, and N cycling) in two subtropical freshwater marshes encroached by coastal plain willow (Salix caroliniana Michx.). Two study regions (Moccasin Island and Lake Apopka) were selected because of their location in the St. John's River watershed and their unique histories and hydroperiod, allowing for an investigation …

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The Spatial Distribution Of Tumuli In The Iron Age Kanak Su Basin, Turkey, Paige Paulsen Jan 2018

The Spatial Distribution Of Tumuli In The Iron Age Kanak Su Basin, Turkey, Paige Paulsen

Electronic Theses and Dissertations

This project takes the Iron Age tumuli of the Kanak Su Basin in Yozgat, Turkey as a case study for the application of geospatial methods to reconstruct past perceptions of a mortuary landscape. The tumulus fields – landscapes heavily modified by monumental burial mounds – of central Anatolia present an opportunity to investigate how burial practices reflect and create places of collective memory, territorial identity, and the social order. Understanding the nature of Iron Age settlement in the Kanak Su Basin remains an ongoing subject of study in central Anatolian archaeology, especially in regard to how the large, short-lived city …

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Adaptation And Resilience Of Extreme Teams: A Qualitative Study Using Historiometric Analysis, Lauren Campbell Jan 2018

Adaptation And Resilience Of Extreme Teams: A Qualitative Study Using Historiometric Analysis, Lauren Campbell

Electronic Theses and Dissertations

The business and academic worlds agree that team resilience and team adaptation are in increasing need of study. This study explores the behavioral processes of team adaptation—specifically, those action phase and interpersonal processes mapped by Marks, Mathieu, and Zaccaro (2001) and overlapping with the team adaptation model by Burke, Stagl, Salas, Pierce, and Kendall (2006) and expanded by Rosen et al. (2011). Additionally, the impact of trigger type on adaptive behaviors is explored as suggested by Maynard and Kennedy (2016). These explorations are conducted within the context of extreme teams, and the primary method used is Crayne and Hunter's (2018) …

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Hilbert Series Of Graphs, Hypergraphs, And Monomial Ideals, Kyle Trainor Jan 2018

Hilbert Series Of Graphs, Hypergraphs, And Monomial Ideals, Kyle Trainor

Electronic Theses and Dissertations

In this dissertation, identities for Hilbert series of quotients of polynomial rings by monomial ideals are explored, beginning in the contexts of graph and hypergraph rings and later generalizing to general monomial ideals. These identities are modeled after constructive identities from graph theory, and can thus be used to construct Hilbert series iteratively from those of smaller algebraic structures.

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Effects Of Large-Scale Density Reduction On Brown Trout Growth And Movement In Spearfish Creek, South Dakota, Travis Rehm Jan 2018

Effects Of Large-Scale Density Reduction On Brown Trout Growth And Movement In Spearfish Creek, South Dakota, Travis Rehm

Electronic Theses and Dissertations

Density-dependent growth is often observed in stream-dwelling Brown Trout Salmo trutta populations. In Spearfish Creek, South Dakota, biomass of adult Brown Trout (>200 mm) is about three times greater than that reported for similar Black Hills streams while mean length of adult fish is about 30% less. Here, we evaluate large-scale density reduction as a management tool for improving growth rate of stream-dwelling Brown Trout. We compared age-specific growth of wild Brown Trout in stream sections receiving 50% reductions in fish abundance. We also assessed the effect of fish density manipulation on Brown Trout movement patterns and home range …

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