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Improving Robustness Of Deep Learning Models And Privacy-Preserving Image Denoising, Hadi Zanddizari

USF Tampa Graduate Theses and Dissertations

Applications of deep learning models and convolutional neural networks have been rapidly increased. Although state-of-the-art CNNs provide high accuracy in many applications, recent investigations show that such networks are highly vulnerable to adversarial attacks. The black-box adversarial attack is one type of attack that the attacker does not have any knowledge about the model or the training dataset, but it has some input data set and theirlabels.

In this chapter, we propose a novel approach to generate a black-box attack in a sparse domain, whereas the most critical information of an image can be observed. Our investigation shows that large …

Adversarial And Data Poisoning Attacks Against Deep Learning, Jing Lin

USF Tampa Graduate Theses and Dissertations

Machine translation software, image captioning, grammar check (Grammarly), chatbot, real-time captioning and translation, music genre classification, and document classification are a few examples of deep learning applications that achieve outstanding performance in areas where traditional statistical techniques have difficulty performing classification and/or regression. Google translator has over 100 billion daily users and can translate 109 languages instantly (much faster than a human translator). AlphaGo won Lee Sedol, the eighteen-time world champion. Microsoft Team's living captioning provides accurate real-time captioning as a speaker speaks. Deep learning achieves undoubtedly remarkable performance. However, recent studies on adversarial attacks and data poisoning attacks show …

The Esea Waiver From The 1.0 Percent Threshold And Participation Rates In State Assessments., Justin N. Arner

USF Tampa Graduate Theses and Dissertations

Participation of students in standardized testing has been a long-debated topic in the field of education since the beginning of accountability movements. Federal laws require that all students in the public school system in grades 3 -8 and high school participate in these assessments. Monitoring of participation on these assessments is a requirement of a state’s annual reporting across many identifying categories. One such category is students with disabilities identified under the IDEA (2004). Within those students identified as having a disability is a small population of students with a “most significant cognitive disability.” This population of students participates in …

Defining The Role Of Oxidized Mitochondrial Dna In Myelodysplastic Syndromes, Grace Anne Ward

USF Tampa Graduate Theses and Dissertations

Myelodysplastic Syndromes (MDS) are heterogeneous bone marrow (BM) failure malignancies characterized by constitutive innate immune activation, NLRP3 inflammasome (IFM) driven pyroptotic cell death, and the induction of interferon-stimulated genes (ISG). MDS often diagnostically resembles other hematologic disorders, as such, additional tools are needed for the discrimination from overlapping disorders. We observed that oxidized mitochondrial DNA (ox-mtDNA) is released upon cytolysis. We hypothesize that levels of ox-mtDNA are high in MDS, allowing us to use it as a diagnostic biomarker; and that cell free ox-mtDNA is contributing to feedforward BM failure.

ROC/AUC analysis demonstrated that ox-mtDNA is a sensitive and specific …

A Statistical Method For Quantifying Animal Interaction; Combining Time Geography And Simulation, Zachary J. Smith

USF Tampa Graduate Theses and Dissertations

Dynamic interaction (DI) describes the synchronous interaction of one or more individual animals over time. Current methods to quantify DI from tracking data are lacking. They typically require synchronized tracking data which limits their applicability to most studies. They also often do not have built-in tests of significance to evaluate interaction, and if so, rely on random walk models that lack biological realism. This research aimed to develop and evaluate a new way of measuring animal interaction that overcomes these limitations. The goal was to create a statistical method for quantifying and evaluating interaction that is relevant across computational, behavioural, …

Breast Health Esteem To Motivate Breast Health Behavioral Intentions: An Application Of The Terror Management Health Model, Emily P. Courtney

USF Tampa Graduate Theses and Dissertations

Breast cancer is a pervasive disease affecting millions of people, and a family history of the disease can put individuals at a significantly higher risk of developing breast cancer over the course of one’s lifetime. In turn, women with a family history often perceive themselves as more susceptible to breast cancer. Further, women who have lost family members to breast cancer likely associate the disease itself with death to a greater extent. In addition to this increased risk perception, women with a family history might intertwine breast health with feelings of esteem. It follows that those feelings of esteem should …

Quantifying Functional Performance Of Manual Force Perception And Dynamic Force Control, Benjamin Rigsby

USF Tampa Graduate Theses and Dissertations

This dissertation furthers our understanding of how we (humans) sense and interact withforces, humans, and robots in three distinct cases, which affect robotics and rehabilitation. Chapter 2 examines physical therapists’ (PTs’) consistency when applying assistance forces during rehabilitation. Chapter 3 explores how control performance of an unstable system is affected by the system’s degrees of freedom (DoFs). Chapter 4 investigates the effects of the task speed and direction of perturbing forces on a dynamic task where position is controlled through self-generated forces.

Chapter 2 quantifies the consistency of forces that PTs apply during therapy by using a robotic device. The …

Phenotypic Variability In Ipsc-Induced Cardiomyocytes And Cardiac Fibroblasts Carrying Diverse Lmna Mutations, Jiajia Yang

USF Tampa Graduate Theses and Dissertations

Mutations in the LMNA gene (encoding lamin A/C) are the second most common cause of familial arrhythmogenic cardiomyopathy. Diverse LMNA variants in cardiomyocytes have been associated with cardiac phenotypes. Moreover, cardiac fibroblasts make up a large fraction of the myocardium's non-myocyte component, intrinsically linked to extracellular matrix synthesis and turnover as well as secreting large amounts of bioactive metabolites. However, our understanding of how different mutation sites and the non-myocyte niche mediate cardiomyocyte function is limited. To fill this gap, in this thesis I investigated the hypothesis that variable LMNA mutations have significant effects on the genetic, structure and electrophysiological …

Measuring And Improving Student Attitude In College-Level Chemistry: A Novel Survey Methodology And Social-Psychological Interventions, Ying Wang

USF Tampa Graduate Theses and Dissertations

Students’ attitude has been an important focus in the chemistry education community. However, there is a lack of research in evaluating interventions aiming to improve students’ attitude. Social-psychological interventions (SPIs), brief interventions that target students’ subjective experiences, were demonstrated to improve students’ attitude in instructional settings. In addition, accurately measuring students’ attitude helps researchers better understand the impact of the intervention. Therefore, the major goal of this work is to explore practices, particularly a novel survey methodology and a social-psychological intervention (SPI), to facilitate measuring and improving students’ attitude in college-level chemistry courses. This work also paid particular attention to …

A Physically Constrained Wavelet-Aided Statistical Model (Pcwasm) For Multidecadal Groundwater Dynamics Predictions And Climate Change Evaluation, Fatih Gordu

USF Tampa Graduate Theses and Dissertations

Long-term groundwater management relies on forecasts of decadal or longer groundwater levels driven by nested scales of variability in climate. Discerning the impacts of anthropogenic stressors on groundwater is also critical for establishing predevelopment benchmark groundwater conditions and developing climate change adaptation strategies to reduce risks and increase resiliency. This research demonstrates the development and successful applications of a new methodology to predict and assess multidecadal groundwater dynamics for understanding long-term effects of climate change and groundwater withdrawals.

A Physically Constrained Wavelet-Aided Statistical Model (PCWASM) is first introduced to analyze and predict monthly aquifer levels on multidecadal time scales. The …

An Internet Of Medical Things (Iomt) Approach For Remote Assessment Of Head And Neck Cancer Patients, Ruchitha Chinthala

USF Tampa Graduate Theses and Dissertations

Internet-of-Medical-Things (IoMT) allows for a smart healthcare system to remotely monitor and assess patient’s progress at home. Head and neck cancers (HNC) are treated with various treatment options which are associated with significant side effects, mainly shoulder dysfunction, and trismus (spasm of jaw muscles). However, measurement of patient’s progress, and side effects while undergoing treatment, is limited to evaluation received based on scheduled appointments. Development of strategies to enhance monitoring during follow-up period is needed for earlier identification of problems such as trismus and shoulder dysfunction. In this interdisciplinary research, for the first time, we develop an IoMT enabling application, …

Emotional Intelligence-Driven End-Of-Life Care Simulation For Undergraduate Nursing Students: A Quantitative And Qualitative Study, Nasreen M. Alghamdi

USF Tampa Graduate Theses and Dissertations

Dealing with dying patients or experiencing the death of a patient is one of the most challenging aspects for nursing students. When they enter the workforce, they will be confronted with emotional challenges when caring for terminally ill patients and the intense emotions of bereaved family members. The complexity of end-of-life (EOL) care, with patients and their families, requires emotional intelligence (EI). In EOL care, an emotional piece of information can act as an essential source of information. Simulation has been a successful teaching method to improve emotional learning outcomes among nursing students. The emotionally charged EOL care simulation, and …

Assessment Of Scoured Bridges Subjected To Vessel Impact Using Nonlinear Dynamic Analysis, Amir S. Irhayyim

USF Tampa Graduate Theses and Dissertations

Scour has been the number one cause of bridge failure in the United States with an average of 22 bridges collapsing or being closed owing to severe deformation each year [1]. This work attempts to deal with two important issues: (1) Potential bridge failures during the co-occurrence of scour and ship impact; (2) Incorporating IDA analysis to predict bridge responses based on barge and collision parameters, and to generate fragility curves to predict the probability of exceedance damage states.

For bridges, flooding is considered the most threatening hazard. According to the National Bridge Inventory (NBI) [2], 500,000 out of 615,000 …

A Macro Social Examination Of The Relationship Between Disabilities And Crime Using Neighborhood And County Level Data, Natasha A. Baloch

USF Tampa Graduate Theses and Dissertations

Over the last few decades, there has been a consistent increase in mental illnesses in the US population. This has also lead to increased interactions of those with mental illnesses and/or disabilities with law enforcement and the criminal justice system. Despite these instances, there is limited research on the relationship between disabilities, mental health issues and crime in the large body of criminological research. Further, the current extant research is a) outside the field of Criminology, b) primarily focuses on those with only intellectual or developmental disabilities and/or c) does not examine this relationship at the macro level, despite evidence …

Analyzing Decision-Making In Robot Soccer For Attacking Behaviors, Justin Rodney

USF Tampa Graduate Theses and Dissertations

In robotics soccer, decision-making is critical to the performance of a team’s SoftwareSystem. The University of South Florida’s (USF) RoboBulls team implements behavior for the robots by using traditional methods such as analytical geometry to path plan and determine whether an action should be taken. In recent works, Machine Learning (ML) and Reinforcement Learning (RL) techniques have been used to calculate the probability of success for a pass or goal, and even train models for performing low-level skills such as traveling towards a ball and shooting it towards the goal[1, 2]. Open-source frameworks have been created for training Reinforcement Learning …

Predicting The Number Of Objects In A Robotic Grasp, Utkarsh Tamrakar

USF Tampa Graduate Theses and Dissertations

Picking up the desired number of objects at once from a pile is still very difficult to dofor a robot. The main challenge is predicting the number of objects in the grasp. This thesis describes several deep-learning-based prediction models that predict the number of objects in the grasp of a Barrett hand using the tactile sensors on its fingers and palm and its joint angles and torque (strain gauge) readings. The deep learning models include various architectures using autoencoders and vision transformers. We evaluated the models with a dataset of grasping 0, 1, 2, 3, and 4 spheres. Then, we …

Using Programmed Prompting Phases To Increase Motor-Imitation Skills, Chelsea Barzycki

USF Tampa Graduate Theses and Dissertations

Children with ASD often display deficits in imitative skills in comparison to neurotypical children and age-liked peers. Acquiring motor-imitation skills allow individuals to learn a variety of other skills through attending and observing others in their environment. In this study, a programmed prompting sequence with two prompters was used to teach motor imitation skills in a child with autism spectrum disorder (ASD). The results exhibit the use of programmed prompting with two therapists increased the acquisition of motor imitation.

Watershed Management For Nutrient Control In Taylor Creek And Nubbins Slough, Florida, Rachael Z. Cooper

USF Tampa Graduate Theses and Dissertations

Despite efforts to improve water quality within the watershed since the 1970s, harmful algal blooms (HABs) still occur within Lake Okeechobee (LO). HABs are harmful to the people, the ecosystem, and the economy dependent on the lake. Taylor Creek Nubbins Slough (TCNS) is a subwatershed of the lake, contributing to a large percentage of the nutrient loading. Due to the size and complexity of LO’s watershed, two smaller basins within the TCNS subwatershed were selected to evaluate the following research questions: (1) How do water quality trends contrast between two basins? (2) How do nutrient load and treatment within the …

Estimating The As-Placed Grout Volume Of Auger Cast Piles, Tristen Mee

USF Tampa Graduate Theses and Dissertations

Augered Cast-in-Place (ACIP) piles are a geotechnical foundation element increasingly used to support large publicly funded structures as an alternative to drilled shafts or driven piles. ACIP piles are constructed by drilling an excavation to the full length of the designed pile with a continuous flight auger. Grout (cement, sand, and water mixture) is then pumped through the hollow auger stem to begin grouting the excavation. After establishing an initial head pressure, the auger is slowly extracted while the remainder of the pile is grouted. Once the auger is completely removed, the steel reinforcement cage is lowered into the grouted …

Visions Of Entanglement And Escape: In-Visible Voice In The Films Of Terrence Malick And George Lucas, Michael Lee Taber

USF Tampa Graduate Theses and Dissertations

This thesis juxtaposes the unexpectedly parallel careers of the filmmakers George Lucas and Terrence Malick. Both popularly and academically, Lucas and Malick are typically conceived as divergent practitioners and are framed in oppositional terms. The goal of this thesis is – in part – to break down this oppositional understanding of Lucas and Malick as filmmakers. This traditional understanding of Malick and Lucas collapses when we consider their respective relationships to sensation and abstraction. Affirmations of sensation and Malick abound, as do critiques of abstraction and Lucas – all the while it is Malick who is aligned with abstraction and …

Racial Differences In Perceptions Of Sanction Severity, Sarah L. Franklin

USF Tampa Graduate Theses and Dissertations

Research has consistently found an association between race and relative perceptions of incarceration severity. Black people view incarceration as less severe than an equivalent period of probation. However, few studies have examined why this relationship exists. The present study surveys a large sample of young adults to examine whether the observed relationship between race and incarceration severity can be replicated. In doing so, the study then considers whether constructs related to socioeconomic status, criminal system experiences, perceptions of legitimacy, and sanction attitudes explain the racial divide. Results indicate a significant relationship between race and incarceration severity, such that Black people, …

The Impact Of Self-Monitoring Using I-Connect For Increasing On-Task Behavior For Students With Or At Risk Of An Emotional Behavioral Disorder, Marissa Lenae Del Vecchio

USF Tampa Graduate Theses and Dissertations

The use of technology-based self-monitoring interventions is becoming more popular, increasing the likelihood that self-monitoring interventions will have greater contextual fit within classrooms. Self-monitoring has resulted in increases in desired school behaviors, such as increases in on-task behavior, academic performance and task completion, for students diagnosed with disabilities. The purpose of this study was to extend the findings from Clemons et al. (2016) and examine student and teacher use of a web-based self-monitoring application, I-Connect, and reinforcement to increase on-task behavior for upper-level elementary school students with or at risk for an emotional behavioral disorder (EBD) using extended self-monitoring intervals. …

A Case Study In Applied Behavior Analysis: Increasing Color Receptive Identification Using Positional Prompts, Nicole Zamorano

USF Tampa Graduate Theses and Dissertations

Color identification is an important skill because it fosters academic success (Akande, 2000). Positional prompts have been successfully used to teach receptive identification to children diagnosed with autism spectrum disorder (ASD; Leaf et al., 2014; 2016). The purpose of this case study was to increase accuracy of receptive identification of colors using positional prompting. The participant was a 7-year-old boy diagnosed with ASD who could accurately sort colors. The data from this case study indicate that positional prompts proved to be effective in teaching receptive color identification.

Teaching A Child To Tact Emotions And Evaluating In Situ Generalization, Kayla Crouch

USF Tampa Graduate Theses and Dissertations

Children with autism can be disadvantaged socially by their difficulty recognizing emotions in others. This purpose of this study was to teach a 6-year-old child with ASD and emotion recognition deficits how to recognize the emotions of others via photos of facial expressions. A multiple baseline across emotions design was used. Photos of a variety of people were used to promote generalization and prompting, positive reinforcement, and error-correction procedures were implemented. The study effectively taught the participant to identify emotions based on photos of faces. The study also evaluated if learning to tact emotions via photos would generalize to in …

Effects Of Downdrag On Pile Performance, Malaak Omelia Araujo

USF Tampa Graduate Theses and Dissertations

All soils settle under the weight of newly constructed embankments. In the case of MSE wall-type embankments, piles are driven prior to embankment construction. Under the weight of the newly constructed embankment, the soil surrounding the piles may settle more than the piles themselves. This downward movement potentially drags the piles down and induces a force within the pile known as downdrag. The research on the downdrag phenomenon involving cohesionless granular soils is sparse, thus the focus of this study is to investigate the effects of downdrag on pile performance driven in Florida sandy soils. A site consisting of soil …

Inaccuracies In Patient Self-Report Of Genetic Testing Results For Hereditary Cancer Risks Could Impact Risk-Management Practices, Brittany Faye Sears

USF Tampa Graduate Theses and Dissertations

Pathogenic variants (PV) or likely pathogenic variants (LPV) in a cancer risk gene increase lifetime risks of developing cancer. National guidelines provide evidence-based recommendations on cancer risk management (CRM) strategies tailored to the cancer risks associated with PV/LPV in different genes. Emotional responses after learning of a PV/LPV have been studied as predictors of patient adherence to CRM, but less attention has been given to whether patients remember their actual genetic test results and the impact this may have on subsequent adherence to CRM. We surveyed a group of 114 participants registered with the Inherited Cancer Registry (ICARE), all of …

Predicting Future Well-Being Among United States Youth Who Attempted Suicide And Survived, Bingjie Tong

USF Tampa Graduate Theses and Dissertations

After a non-fatal suicide attempt, survivors commonly endorse the goal of building a life worth living; however, there have been few investigations of good outcomes after non-fatal suicide attempts. Our prior study of a national sample of United States youth found that 7 years after a non-fatal suicide attempt, approximately 13% of adolescents (75 out of 574) achieved a well-being profile at or above the top quartile of non-suicidal peers, a status which we term as good future well-being (FWB). The present investigation focused on potential predictors of FWB, including self-esteem, positive mood, family connectedness, and school belongingness, drawn from …

An Exercise In Exceptions: Personhood, Divergency, And Ableism In The Star Trek Franchise, Jessica A. Blackman

USF Tampa Graduate Theses and Dissertations

In 1987, more than two decades after Star Trek: The Original Series aired on television for the first time, the Enterprise returned to delight audiences with an all-new crew in Star Trek: The Next Generation. With the new generation came new issues and adventures for the crew and the audience to explore, and the popularity of the show lead to the production of three successful spin-offs. These four new shows in the Star Trek franchise dealt with more complex plots and commentaries than the original series before them; three characters in particular – Lt. Commander Data, Dr. Julian Bashir, and …

Evaluating Behavioral Skills Training To Train Online Gaming Safety Skills, Henry Chovet Santa Cruz

USF Tampa Graduate Theses and Dissertations

Despite the growing concern of caregivers as their children spend an increasing amount of time on the internet interacting with strangers, there is a limited body of research that focuses on online safety skills training. Behavioral skills training has been used by researchers to teach children firearm safety skills, poison safety skills, and abduction prevention skills. Given that the skills taught in abduction-prevention training are also to relevant online safety, the researcher assessed the use of behavioral skills training for teaching online safety skills to a 9-year-old, Clark. In-situ assessments took place while playing the popular online game, Among Us, …

A Case Study In Applied Behavior Analysis: Using Prevent-Teach-Reinforce Strategies To Decrease A Student’S Task Refusal, Kiersten L. Whitaker

USF Tampa Graduate Theses and Dissertations

Task refusal might hinder academic performance (e.g., grades, test scores, etc.); however,one model that has been proven to help decrease problem behaviors is the Prevent-TeachReinforce (PTR) model. The purpose of this study was to evaluate the effects of the PTR model on the assessment and treatment of problem behavior for one high school student’s task refusal. Results demonstrated the PTR model helped identify plausible functions of task refusal; furthermore, the PTR model led to the development of an effective intervention that was feasible, function-based, and resulted in decreasing task refusal. Keywords: classrooms, function-based intervention, prevent-teach-reinforce, task refusal