View All Items

Title: Human Spaceflight Decision-Making as a Potential Well Problem.
Creator: Litwin, Ari, Handberg, Roger, Dolan, Thomas, Houghton, David, Sadri, Houman, University of Central Florida
Abstract / Description: This study investigates funding within the US human spaceflight program in the time-period from 2004 to 2012. The approach taken employed the (")potential well(") model from physical science. The potential well model constrains any physical body trapped within it, and similarly a political (")funding well(") will constrain all programmatic decision-making.Two potential well models are employed, one represents classical physics while the other represents quantum physics. Since each model...
Show moreThis study investigates funding within the US human spaceflight program in the time-period from 2004 to 2012. The approach taken employed the (")potential well(") model from physical science. The potential well model constrains any physical body trapped within it, and similarly a political (")funding well(") will constrain all programmatic decision-making.Two potential well models are employed, one represents classical physics while the other represents quantum physics. Since each model results in motion with certain properties, it can be seen if funding decisions also exhibit similar properties. In physics, the bifurcation between the classical world of aggregate bodies and the quantum world of individual particles is an indicator of deeper physical principles. This study seeks to explore whether this bifurcation exists in the political world as well. If so, it would help explain space policy evolution from 2004 to 2012, and provide evidence concerning the usefulness of physical models for discovering further trends in social science, including political science.The study of a bifurcation in space policy political decision-making resulted in an unclear relationship since some properties were found to be similar to their physical counterpart, some were found to be different, and one property, the quantization of funding into discrete increments, was absent from political decision-making. Further studies are required to explore this bifurcation in greater detail. However, the potential well did prove to be a powerful model in explaining the evolution of human spaceflight policy in 2004 to 2012 as it provided a framework to explain dynamics that may have otherwise remained unclear.
Show less
Date Issued: 2012
Identifier: CFE0004401, ucf:49370
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004401

Title: NONINVASIVE PHYSIOLOGICAL MEASURES AND WORKLOAD TRANSITIONS:AN INVESTIGATION OF THRESHOLDS USING MULTIPLE SYNCHRONIZED SENSORS.
Creator: Sciarini, Lee, Nicholson, Denise, University of Central Florida
Abstract / Description: The purpose of this study is to determine under what conditions multiple minimally intrusive physiological sensors can be used together and validly applied for use in areas which rely on adaptive systems including adaptive automation and augmented cognition. Specifically, this dissertation investigated the physiological transitions of operator state caused by changes in the level of taskload. Three questions were evaluated including (1) Do differences exist between physiological indicators...
Show moreThe purpose of this study is to determine under what conditions multiple minimally intrusive physiological sensors can be used together and validly applied for use in areas which rely on adaptive systems including adaptive automation and augmented cognition. Specifically, this dissertation investigated the physiological transitions of operator state caused by changes in the level of taskload. Three questions were evaluated including (1) Do differences exist between physiological indicators when examined between levels of difficulty? (2) Are differences of physiological indicators (which may exist) between difficulty levels affected by spatial ability? (3) Which physiological indicators (if any) account for variation in performance on a spatial task with varying difficulty levels? The Modular Cognitive State Gauge model was presented and used to determine which basic physiological sensors (EEG, ECG, EDR and eye-tracking) could validly assess changes in the utilization of two-dimensional spatial resources required to perform a spatial ability dependent task. Thirty-six volunteers (20 female, 16 male) wore minimally invasive physiological sensing devices while executing a challenging computer based puzzle task. Specifically, participants were tested with two measures of spatial ability, received training, a practice session, an experimental trial and completed a subjective workload survey. The results of this experiment confirmed that participants with low spatial ability reported higher subjective workload and performed poorer when compared to those with high spatial ability. Additionally, there were significant changes for a majority of the physiological indicators between two difficulty levels and most importantly three measures (EEG, ECG and eye-tracking) were shown to account for variability in performance on the spatial task.
Show less
Date Issued: 2009
Identifier: CFE0002781, ucf:48108
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0002781

Title: Modeling and Compensation for Efficient Human Robot Interaction.
Creator: Paperno, Nicholas, Behal, Aman, Haralambous, Michael, Boloni, Ladislau, University of Central Florida
Abstract / Description: The purpose of this research is to first: identify the important human factors to performance when operating an assistive robotic manipulator, second: develop a predictive model that will be able to determine a user's performance based on their known human factors, and third: develop compensators based on the determined important human factors that will help improve user performance and satisfaction. An extensive literature search led to the selection of ten potential human factors to be...
Show moreThe purpose of this research is to first: identify the important human factors to performance when operating an assistive robotic manipulator, second: develop a predictive model that will be able to determine a user's performance based on their known human factors, and third: develop compensators based on the determined important human factors that will help improve user performance and satisfaction. An extensive literature search led to the selection of ten potential human factors to be analyzed including reaction time, spatial abilities (orientation and visualization), working memory, visual perception, dexterity (gross and fine), depth perception, and visual acuity of both eyes (classified as strongest and weakest). 93 participants were recruited to perform six different pick-and-place and retrieval tasks using an assistive robotic device. During this time, a participants Time-on-Task, Number-of-Moves, and Number-of-Moves per minute were recorded. From this it was determined that all the human factors except visual perception were considered important to at least one aspect of a user's performance. Predictive models were then developed using random forest, linear models, and polynomial models. To compensate for deficiencies in certain human factors, the GUI was redesigned based on a heuristic analysis and user feedback. Multimodal feedback as well as adjustments in the sensitivity of the input device and reduction in the robot's speed of movement were also implemented. From a user study using 15 participants it was found that certain compensation did improve satisfaction of the users, particularly the multimodal feedback and sensitivity adjustment. The reduction of speed was met with mixed reviews from the participants.
Show less
Date Issued: 2016
Identifier: CFE0006370, ucf:51504
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006370

Title: Understanding Human Performance and Social Presence: An Analysis of Vigilance and Social Facilitation.
Creator: Claypoole, Victoria, Szalma, James, Mouloua, Mustapha, Sims, Valerie, Hancock, Peter, Joseph, Dana, University of Central Florida
Abstract / Description: Social facilitation is characterized by improved performance on simple, or well-known, tasks and impaired performance on complex, or unfamiliar, tasks. Previous research has demonstrated that the use of social presence may improve performance on cognitive-based tasks that are relevant to many organizational contexts, such as vigilance. However, to date, there has not been consolidation of the research regarding the different implementations of social facilitation, or any analysis indicating...
Show moreSocial facilitation is characterized by improved performance on simple, or well-known, tasks and impaired performance on complex, or unfamiliar, tasks. Previous research has demonstrated that the use of social presence may improve performance on cognitive-based tasks that are relevant to many organizational contexts, such as vigilance. However, to date, there has not been consolidation of the research regarding the different implementations of social facilitation, or any analysis indicating which types of social presence are best under varying conditions. The present dissertation describes three experiments that seek to contribute to a taxonomic framework of social facilitation. Experiment One statistically established a difference in task difficulty between twoversions of a cognitive-based vigilance task by utilizing increasing increments of event rate in order to examine the first factor of the taxonomy (i.e., level of difficulty). Experiment Two explored the effects of two novel manipulations of social presence, electronic performance monitoring (i.e., EPM) and co-acting, in order to demonstrate that both novel forms of social presence could improve performance, and were worth examining further. Finally, ExperimentThree replicated and extended the results of Experiments One and Two by examining the interaction effects of levels of task difficulty and social presence through the use of ten conditions. Overall the results indicates that multiple forms of social presence can improve cognitive performance, however, this effect was not moderated by the level of task difficulty, as suggestedby the predominant theories of social facilitation. This suggests that future work should seek to replicate and extend this finding in order to determine if the level of task difficult is indeed a moderating variable of social facilitation. Additionally, the results demonstrated that social presence could be used in organizational settings in order to improve employee performance, while also sometimes reducing the perceived workload associated with the task.
Show less
Date Issued: 2018
Identifier: CFE0006989, ucf:51631
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006989

Title: Demanding Reduction: An Exploration of County-Level Characteristics Associated with Areas of Human Trafficking in Florida.
Creator: Diaz, Madelyn, Huff-Corzine, Lin, Corzine, Harold, Holmes, Stephen, University of Central Florida
Abstract / Description: Research on the prevalence of human trafficking (HT) is relatively scarce, even though more attention has been brought to this human rights issue in the past couple of decades. Widely known as a form of modern day slavery, trafficking of persons for sexual exploitative reasons to earn a profit for the trafficker occurs in every major city across the country, despite common misconceptions that it only thrives in foreign countries. To expand on limited existing literature on human trafficking,...
Show moreResearch on the prevalence of human trafficking (HT) is relatively scarce, even though more attention has been brought to this human rights issue in the past couple of decades. Widely known as a form of modern day slavery, trafficking of persons for sexual exploitative reasons to earn a profit for the trafficker occurs in every major city across the country, despite common misconceptions that it only thrives in foreign countries. To expand on limited existing literature on human trafficking, this research study explores possible correlations among areas of high violent crime rates, drug arrests, the presence of demand reduction strategies, sociodemographic variables, and tourism measures among the Florida counties to determine if they can act as predictive measures to locate areas where a human trafficking arrest is the most likely to occur. These relationships were investigated through the Offender Based Transaction Systems (OBTS), documented court actions filed by prosecutors between 2012-2016 of human trafficking arrests, and comparing it to violent crime rates and drug arrest rates for the Florida counties using data from the Florida Department of Law Enforcement, in conjunction with demand reduction efforts. The results from this study did not support the hypothesis that the higher rate of violent crime and drug arrest rates would significantly increase to the presence of a human trafficking arrest. Instead, demand reduction efforts, e.g. street and web sting operations, neighborhood action, and public awareness, emerged as the only significant variable that predicted the likelihood of a human trafficking arrest occurring in a county. These findings stress the importance of reduction efforts targeting the leading consumers in this lucrative market; the demand for sex from sex buyers.
Show less
Date Issued: 2018
Identifier: CFE0006994, ucf:51621
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006994

Title: The Perception and Measurement of Human-Robot Trust.
Creator: Schaefer, Kristin, Hancock, Peter, Jentsch, Florian, Kincaid, John, Reinerman, Lauren, Billings, Deborah, Lee, John, University of Central Florida
Abstract / Description: As robots penetrate further into the everyday environments, trust in these robots becomes a crucial issue. The purpose of this work was to create and validate a reliable scale that could measure changes in an individual's trust in a robot. Assessment of current trust theory identified measurable antecedents specific to the human, the robot, and the environment. Six experiments subsumed the development of the 40 item trust scale. Scale development included the creation of a 172 item pool. Two...
Show moreAs robots penetrate further into the everyday environments, trust in these robots becomes a crucial issue. The purpose of this work was to create and validate a reliable scale that could measure changes in an individual's trust in a robot. Assessment of current trust theory identified measurable antecedents specific to the human, the robot, and the environment. Six experiments subsumed the development of the 40 item trust scale. Scale development included the creation of a 172 item pool. Two experiments identified the robot features and perceived functional characteristics that were related to the classification of a machine as a robot for this item pool. Item pool reduction techniques and subject matter expert (SME) content validation were used to reduce the scale to 40 items. The two final experiments were then conducted to validate the scale. The finalized 40 item pre-post interaction trust scale was designed to measure trust perceptions specific to HRI. The scale measured trust on a 0-100% rating scale and provides a percentage trust score. A 14 item sub-scale of this final version of the test recommended by SMEs may be sufficient for some HRI tasks, and the implications of this proposition were discussed.
Show less
Date Issued: 2013
Identifier: CFE0004931, ucf:49634
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004931

Title: Human Trafficking for Sexual Exploitation in Southeast Asia.
Creator: Niamvanichkul, Nodwarang, Sadri, Houman, Morales, Waltraud, Houghton, David, University of Central Florida
Abstract / Description: This study centers on the political aspects of human trafficking and sexual exploitation in Southeast Asia. Specifically, the human trafficking is a security studies concern because it is not only a social issue, but also a security threat. Just as with drug trafficking, human trafficking has security consequences. The study analyzed human trafficking issues in the following three countries in Southeast Asia: Thailand, Myanmar, and Cambodia. These three countries were chosen due to the high...
Show moreThis study centers on the political aspects of human trafficking and sexual exploitation in Southeast Asia. Specifically, the human trafficking is a security studies concern because it is not only a social issue, but also a security threat. Just as with drug trafficking, human trafficking has security consequences. The study analyzed human trafficking issues in the following three countries in Southeast Asia: Thailand, Myanmar, and Cambodia. These three countries were chosen due to the high levels of human trafficking. In each of the chosen cases, there is an examination of human trafficking issues in terms of political structures, political policies, economy, and international aid. Findings showed that individual economic status was the most important factor in human trafficking. Regime type, although important, did not show as significant results when compared to individual economic status. However, there was a positive relationship found between international organizations and human trafficking. Recommendations were made concerning the formulation and implementation of political policies. If international organizations take action in each of the three countries, then the problem of human trafficking can decrease.
Show less
Date Issued: 2013
Identifier: CFE0004901, ucf:49659
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004901

Title: Managerial process of discount decision-making in the lodging industry: The role of human agency.
Creator: Lee, Seung Hyun, Croes, Robertico, Kwun, David, Rivera, Manuel, Sivo, Stephen, Bai, Xiucheng, University of Central Florida
Abstract / Description: Management faces a paradox in managing discrepancies between actual demand and expected demand in daily operations, thereby requiring constant adjustments in pricing under the supervision of management in the short term. The purpose of this study is to determine how discount choices are created and to understand information processing related to the pricing and discounting decision-making process as well as narrating the events, stages, and cycles of choices made by hotel managers. This study...
Show moreManagement faces a paradox in managing discrepancies between actual demand and expected demand in daily operations, thereby requiring constant adjustments in pricing under the supervision of management in the short term. The purpose of this study is to determine how discount choices are created and to understand information processing related to the pricing and discounting decision-making process as well as narrating the events, stages, and cycles of choices made by hotel managers. This study also determines the role of human judgment based on contextual factors in the decision-making process. This mixed methods research design consists of three steps: observation, classification, and association. First, the observation stage includes the careful observation, documentation, and measurement of the phenomena within the social and institutional context through structured interviews with hotel managers. Second, abstractions are classified into categories based on the attributes of the phenomena. Information attributes are categorized into static and dynamic information, and the source of information is characterized in external and internal sources. Third, the association between the category-defining attributes and the outcome observed (discount or not) is explored using conjoint analysis. This last stage attempts to investigate not only the importance of information attributes, but also the role of social-, institution-, and human agency-related influences in managers' discounting decisions.The major findings of the study are as follows. First, habitual practices are identified to show how the classification of events, activities, and institutions are put into practice as managers have developed their own knowledge and practices over time. Such practices become routine over time when managers encounter a similar problem, disequilibrium. Conventions such as the (")less than 35 rule,(") the (")80:20 rule,(") the call around, following suit, and trial and error are manifestations of the coping strategy for the hamstrung complexity in the hospitality industry. Human agency and its perception of reality within a specific context infuse meaning into business practices. The critical role of managers is recognized in making discount decisions as they use a collection of complex patterns in the lodging industry to perceive meaningful patterns in the environment to make a final judgment.The focus on the process of discount decision making allows for detecting how environmental stimuli are watched by managers with deeply held views. Managers use certain rules and patterns to complete their information search. Hotel managers place different values on the information attributes in making a discount choice. The average importance of an attribute represents how important it is to managers when making their discount choices. The results indicate that managers consider the booking window to be the most preferred information, followed by competitors' room rates, the potential for cancelation, and occupancy rate.A discount choice is the product of human agency and social forces over time, distinct from the rational model. Different hotel operation structures and human agencies seek to make a difference in the process of discount decision making. Hotels in Road Warriors, which are smaller in size, are not located near major attractions but seem to fill the need for leisure travelers passing by the highways. Less competition exists because the regional area does not serve as a main attraction. These hotels in Road Warriors thus place great importance on the booking window and potential for cancellation when considering offering a discount. If they do not see enough reservations in the short term and foresee the potential for cancellation, hotels in Road Warriors tend to make a discount choice. These hotels do not seem to indulge in implementing other pricing strategies, but do drop the rate. Hotels in Stars in the Universe, which are larger in size and affiliated with chains/brands, are located near the main attractions (e.g., beach, downtown, or convention center). Hotels in Stars in the Universe consider the booking window to be the most critical information, followed by competitors' room rates, occupancy rate, and potential for cancellation. The extent of how much time is left before an arrival date serves as the most important piece of information in making a discount choice. These hotels emphasize knowledge of competitors' room rates as these hotels have many competitors around and consistently compete for more market shares in the area. Moreover, human agency, mostly grounded in industry tenure and age, determines how managers process discount choices. Market Movers consists of more experienced and educated, older, and predominantly male experts. These general managers, assistant general managers, or revenue managers have gained knowledge and know-how during their extended experience in the industry. Managers in Market Movers focus importance on the booking window, followed by competitors' room rates, occupancy rate, and potential for cancellation. They monitor bookings ahead of time and consider offering a discount as the arrival nears. Managers in Market Movers also show great concern for competitors' room rates. They compare their rates to competitors' in order to ensure that their own rates do not go over competitors' room rates. Managers in Entourage are considered to be younger, less experienced, and less educated. Most managers in Entourage work in marketing/sales or front desk/operations and tend to follow and attend to the industry leaders. These novices try several trials and make errors along the way, but become rising stars in the industry when their trial-and-error approach succeeds. Entourage's discount choice is influenced more by the booking window, followed by potential for cancellation, competitors' room rates, and occupancy rate. Managers in Entourage consider the booking window to be the most critical in making a discount choice, and they act quickly to offer a discount when an arrival date nears. They tend to respond to immediate changes in booking; thus, the potential for cancellation determines the discount choice among Entourage managers. The main theoretical contribution of this study is to demonstrate that managerial frameworks based on a rational premise are not complete. These frameworks should be complemented with a human judgment framework, which provides a richer account of how managers in the lodging industry approach complex price-setting situations. Managerial discounting decision making often falls short of the purely rational model for managers and is bounded by nature. Managers are not always rational in compiling and assessing information leading to discounting that is compatible with the accessibility to information and the computational capacity. The human judgment process, discovered and examined in this study, provides a richer understanding of the process of discounting in the lodging industry. This process is featured by a non-conscious processing of information; the retrieval of the information is based on associations of patterns; the context in which this processing occurs is high paced; and the outcome of the decision is imbued with judgments.In terms of managerial implications, this study enables hotel managers to learn under what conditions other managers consider making discount choices. Information attributes such as the booking window and competitors' room rates are thought to be more valuable than other information. Managers should observe booking windows carefully when making a discount choice. Managers should pay close attention to bookings more in advance so that they detect discrepancies between forecasting and reality in a timely manner. If so, managers can make operational adjustments to rate strategies by controlling not only room rates, but also length of stay (LOS) and channels. Limitations and suggestions for future research are also discussed.
Show less
Date Issued: 2014
Identifier: CFE0005196, ucf:50645
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005196

Title: The Rwandan Genocide and Western Media: French, British, and American Press Coverage of the Genocide between April and July of 1994.
Creator: Tyrrell, Candice, Walker, Ezekiel, Lyons, Amelia, Crepeau, Richard, University of Central Florida
Abstract / Description: The Rwandan Genocide occurred between April and July of 1994. Within those four months, approximately a million Tutsi were brutally murdered by the Hutu in an effort to cleanse the country of a Tutsi presence. The genocide was the culmination of decades of unrest between the two groups created from Western influence under colonialism and post-colonial relationships. The international response to the genocide was scarce. While international intervention waned, the international media kept the...
Show moreThe Rwandan Genocide occurred between April and July of 1994. Within those four months, approximately a million Tutsi were brutally murdered by the Hutu in an effort to cleanse the country of a Tutsi presence. The genocide was the culmination of decades of unrest between the two groups created from Western influence under colonialism and post-colonial relationships. The international response to the genocide was scarce. While international intervention waned, the international media kept the genocide relevant in its publications. This thesis examines print media sources from the United States, Britain, and France. This thesis argues that the reporting of the genocide exacerbated larger issues concerning the relationship between the West and Africa. The journalists perpetuated Western superiority over Africa by utilizing racism to preserve colonial ideologies and stereotypes of Africans. In turn, this inherent Western racism complicated the implementation of human rights legislation that would have helped save Tutsi lives. This thesis places the Rwandan genocide, through the reports of Western media, into the larger historiographic context of the Western African dichotomy.
Show less
Date Issued: 2015
Identifier: CFE0005730, ucf:50080
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005730

Title: ALIEN TORT STATUTE: A DISCUSSION AND ANALYSIS OF THE HISTORY, EVOLUTION, AND FUTURE.
Creator: Yodlowski, Shane, Naccarato-Fromang, Gina, University of Central Florida
Abstract / Description: The Alien Tort Statute is a short, thirty-two word section of the United States Code enacted in 1789 as part of the Judiciary Act. The Alien Tort Statute, or ATS, has an uncertain and controversial beginning and remains controversial in current jurisprudence. The ATS reads as follows: "The district courts shall have original jurisdiction of any civil action by an alien for a tort only, committed in violation of the law of nations or a treaty of the United States." It is my intent for this...
Show moreThe Alien Tort Statute is a short, thirty-two word section of the United States Code enacted in 1789 as part of the Judiciary Act. The Alien Tort Statute, or ATS, has an uncertain and controversial beginning and remains controversial in current jurisprudence. The ATS reads as follows: "The district courts shall have original jurisdiction of any civil action by an alien for a tort only, committed in violation of the law of nations or a treaty of the United States." It is my intent for this thesis to be an academic discussion of the mysterious history, intent, and court cases that have evolved the ATS; and the way in which the evolution took place. Having lain dormant for almost two decades, it is important to understand how the ATS was finally utilized and how this affected the statutes' ability to become a tool for human rights persecution abroad; until the decision in Kiobel v. Royal Dutch Petroleum. Examining the language of two opinions by the District Court of the Second Circuit and the Supreme Court in Kiobel we will be able to understand, but reject, the arguments of both these courts.
Show less
Date Issued: 2014
Identifier: CFH0004615, ucf:45293
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFH0004615

Title: THE EFFECTS OF DEVELOPMENT ON POLICIES IN THE PREVENTION OF INTERNATIONAL HUMAN TRAFFICKING.
Creator: Szczerba, Christopher, Sadri, Houman, University of Central Florida
Abstract / Description: Governments and leaders across the globe almost universally agree that human trafficking is a modern atrocity that has harshly negative effects for individuals, communities, entire states and the international community. Nevertheless, they are not in agreement on how best to investigate cases and provide aid to victims. Many states lack the resources to effectively create and implement policies. Governments must act to protect their citizens and people within their borders. Policies are...
Show moreGovernments and leaders across the globe almost universally agree that human trafficking is a modern atrocity that has harshly negative effects for individuals, communities, entire states and the international community. Nevertheless, they are not in agreement on how best to investigate cases and provide aid to victims. Many states lack the resources to effectively create and implement policies. Governments must act to protect their citizens and people within their borders. Policies are necessary to correctly identify victims, investigate accusations, bring cases to trial and prevent vulnerable populations from becoming victimized through awareness. This thesis asserts that there is a link between the development level of a state and its ability to limit the grotesque crimes of trafficking that occur within its borders. Using the United Nation's annual report which details the development ranking of individual states, it is possible to comparatively analyze the ability of these states to comply with international standards established by the United States of America in the protection of victims of human trafficking. Special attention is paid to the challenges that societies face when there are drastic changes to states' economic activity or political stability and how these affect the frequency of trafficking occurrences and a government's ability to respond.
Show less
Date Issued: 2014
Identifier: CFH0004579, ucf:45158
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFH0004579

Title: ATTRIBUTIONS OF BLAME IN A HUMAN-ROBOT INTERACTION SCENARIO.
Creator: Scholcover, Federico, Sims, Valerie, University of Central Florida
Abstract / Description: This thesis worked towards answering the following question: Where, if at all, do the beliefs and behaviors associated with interacting with a nonhuman agent deviate from how we treat a human? This was done by exploring the inter-related fields of Human-Computer and Human-Robot Interaction in the literature review, viewing them through the theoretical lens of anthropomorphism. A study was performed which looked at how 104 participants would attribute blame in a robotic surgery scenario, as...
Show moreThis thesis worked towards answering the following question: Where, if at all, do the beliefs and behaviors associated with interacting with a nonhuman agent deviate from how we treat a human? This was done by exploring the inter-related fields of Human-Computer and Human-Robot Interaction in the literature review, viewing them through the theoretical lens of anthropomorphism. A study was performed which looked at how 104 participants would attribute blame in a robotic surgery scenario, as detailed in a vignette. A majority of results were statistically non-significant, however, some results emerged which may imply a diffusion of responsibility in human-robot collaboration scenarios.
Show less
Date Issued: 2014
Identifier: CFH0004587, ucf:45224
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFH0004587

Title: Evaluating Human-Robot Implicit Communication through Human-Human Implicit Communication.
Creator: Richardson, Andrew, Karwowski, Waldemar, Hancock, Peter, Shumaker, Randall, Reinerman, Lauren, University of Central Florida
Abstract / Description: Human-Robot Interaction (HRI) research is examining ways to make human-robot (HR) communication more natural. Incorporating natural communication techniques is expected to make HR communication seamless and more natural for humans. Humans naturally incorporate implicit levels of communication, and including implicit communication in HR communication should provide tremendous benefit. The aim for this work was to evaluate a model for human-robot implicit communication. Specifically, the...
Show moreHuman-Robot Interaction (HRI) research is examining ways to make human-robot (HR) communication more natural. Incorporating natural communication techniques is expected to make HR communication seamless and more natural for humans. Humans naturally incorporate implicit levels of communication, and including implicit communication in HR communication should provide tremendous benefit. The aim for this work was to evaluate a model for human-robot implicit communication. Specifically, the primary goal for this research was to determine whether humans can assign meanings to implicit cues received from autonomous robots as they do for identical implicit cues received from humans.An experiment was designed to allow participants to assign meanings to identical, implicit cues (pursuing, retreating, investigating, hiding, patrolling) received from humans and robots. Participants were tasked to view random video clips of both entity types, label the implicit cue, and assign a level of confidence in their chosen answer. Physiological data was tracked during the experiment using an electroencephalogram and eye-tracker. Participants answered workload and stress measure questionnaires following each scenario.Results revealed that participants were significantly more accurate with human cues (84%) than with robot cues (82%), however participants were highly accurate, above 80%, for both entity types. Despite the high accuracy for both types, participants remained significantly more confident in answers for humans (6.1) than for robots (5.9) on a confidence scale of 1 - 7.Subjective measures showed no significant differences for stress or mental workload across entities. Physiological measures were not significant for the engagement index acrossentity, but robots resulted in significantly higher levels of cognitive workload for participants via the index of cognitive activity.The results of this study revealed that participants are more confident interpreting human implicit cues than identical cues received from a robot. However, the accuracy of interpreting both entities remained high. Participants showed no significant difference in interpreting different cues across entity as well. Therefore, much of the ability of interpreting an implicit cue resides in the actual cue rather than the entity. Proper training should boost confidence as humans begin to work alongside autonomous robots as teammates, and it is possible to train humans to recognize cues based on the movement, regardless of the entity demonstrating the movement.
Show less
Date Issued: 2012
Identifier: CFE0004429, ucf:49352
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004429

Title: A Systems Approach to Assessing, Interpreting and Applying Human Error Mishap Data to Mitigate Risk of Future Incidents in a Space Exploration Ground Processing Operations Environment.
Creator: Alexander, Tiffaney, McCauley, Pamela, Rabelo, Luis, Karwowski, Waldemar, Nunez, Jose, University of Central Florida
Abstract / Description: Research results have shown that more than half of aviation, aerospace and aeronautics mishaps/incidents are attributed to human error. Although many existing incident report systems have been beneficial for identifying engineering failures, most of them are not designed around a theoretical framework of human error, thus failing to address core issues and causes of the mishaps. Therefore, it is imperative to develop a human error assessment framework to identify these causes. This research...
Show moreResearch results have shown that more than half of aviation, aerospace and aeronautics mishaps/incidents are attributed to human error. Although many existing incident report systems have been beneficial for identifying engineering failures, most of them are not designed around a theoretical framework of human error, thus failing to address core issues and causes of the mishaps. Therefore, it is imperative to develop a human error assessment framework to identify these causes. This research focused on identifying causes of human error and leading contributors to historical Launch Vehicle Ground Processing Operations mishaps based on past mishaps, near mishaps, and close calls. Three hypotheses were discussed. The first hypothesis addressed the impact Human Factor Analysis and Classification System (HFACS) contributing factors (unsafe acts of operators, preconditions for unsafe acts, unsafe supervision, and/or organizational influences) have on human error events (i.e. mishaps, close calls, incident or accidents) in NASA Ground Processing Operations. The second hypothesis focused on determining if the HFACS framework conceptual model could be proven to be a viable analysis and classification system to help classify both latent and active underlying contributors and causes of human error in ground processing operations. Lastly, the third hypothesis focused on determining if the development of a model using the Human Error Assessment and Reduction Technique (HEART) could be used as a tool to help determine the probability of human error occurrence in ground processing operations. A model to analyze and classify contributing factors to mishaps or incidents, and generate predicted Human Error Probabilities (HEPs) of future occurrence was developed using the HEART and HFACS tools. The research methodology was applied (retrospectively) to six Ground Processing Operations (GPO) Scenarios and 30 years of Launch Vehicle Related Mishap Data. Surveys were used to provide Subject Matter Experts' (SMEs) subjective assessments of the impact Error Producing Conditions (EPC) had on specific tasks. In this research a Logistic Binary Regression model, which identified the four most significant contributing HFACS human error factors was generated. This model provided predicted probabilities of future occurrence of mishaps when these contributing factors are present. The results showed that the HEART and HFACS methods, when modified, can be used as an analysis tool to identify contributing factors, their impact on human error events, and predict the potential probability of future human error occurrence. This methodology and framework was validated through consistency and comparison to other related research. A contribution methodology for other space operations and similar complex operations to follow was provided from this research. Future research should involve broadening the scope to explore and identify other existing models of human error management systems to integrate into complex space systems beyond what was conducted in this research.
Show less
Date Issued: 2016
Identifier: CFE0006829, ucf:51795
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006829

Title: Facilitating Information Retrieval in Social Media User Interfaces.
Creator: Costello, Anthony, Tang, Yubo, Fiore, Stephen, Goldiez, Brian, University of Central Florida
Abstract / Description: As the amount of computer mediated information (e.g., emails, documents, multi-media) we need to process grows, our need to rapidly sort, organize and store electronic information likewise increases. In order to store information effectively, we must find ways to sort through it and organize it in a manner that facilitates efficient retrieval. The instantaneous and emergent nature of communications across networks like Twitter makes them suitable for discussing events (e.g., natural disasters...
Show moreAs the amount of computer mediated information (e.g., emails, documents, multi-media) we need to process grows, our need to rapidly sort, organize and store electronic information likewise increases. In order to store information effectively, we must find ways to sort through it and organize it in a manner that facilitates efficient retrieval. The instantaneous and emergent nature of communications across networks like Twitter makes them suitable for discussing events (e.g., natural disasters) that are amorphous and prone to rapid changes. It can be difficult for an individual human to filter through and organize the large amounts of information that can pass through these types of social networks when events are unfolding rapidly. A common feature of social networks is the images (e.g., human faces, inanimate objects) that are often used by those who send messages across these networks. Humans have a particularly strong ability to recognize and differentiate between human Faces. This effect may also extend to recalling information associated with each human Face. This study investigated the difference between human Face images, non-human Face images and alphanumeric labels as retrieval cues under different levels of Task Load. Participants were required to recall key pieces of event information as they emerged from a Twitter-style message feed during a simulated natural disaster. A counter-balanced within-subjects design was used for this experiment. Participants were exposed to low, medium and high Task Load while responding to five different types of recall cues: (1) Nickname, (2) Non-Face, (3) Non-Face (&) Nickname, (4) Face and (5) Face (&) Nickname. The task required participants to organize information regarding emergencies (e.g., car accidents) from a Twitter-style message feed. The messages reported various events such as fires occurring around a fictional city. Each message was associated with a different recall cue type, depending on the experimental condition. Following the task, participants were asked to recall the information associated with one of the cues they worked with during the task. Results indicate that under medium and high Task Load, both Non-Face and Face retrieval cues increased recall performance over Nickname alone with Non-Faces resulting in the highest mean recall scores. When comparing medium to high Task Load: Face (&) Nickname and Non-Face significantly outperformed the Face condition. The performance in Non-Face (&) Nickname was significantly better than Face (&) Nickname. No significant difference was found between Non-Faces and Non-Faces (&) Nickname. Subjective Task Load scores indicate that participants experienced lower mental workload when using Non-Face cues than using Nickname or Face cues. Generally, these results indicate that under medium and high Task Load levels, images outperformed alphanumeric nicknames, Non-Face images outperformed Face images, and combining alphanumeric nicknames with images may have offered a significant performance advantage only when the image is that of a Face. Both theoretical and practical design implications are provided from these findings.
Show less
Date Issued: 2014
Identifier: CFE0005318, ucf:50524
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005318

Title: MULTI-VIEW GEOMETRIC CONSTRAINTS FOR HUMAN ACTION RECOGNITION AND TRACKING.
Creator: GRITAI, ALEXEI, Shah, Mubarak, University of Central Florida
Abstract / Description: Human actions are the essence of a human life and a natural product of the human mind. Analysis of human activities by a machine has attracted the attention of many researchers. This analysis is very important in a variety of domains including surveillance, video retrieval, human-computer interaction, athlete performance investigation, etc. This dissertation makes three major contributions to automatic analysis of human actions. First, we conjecture that the relationship between body joints...
Show moreHuman actions are the essence of a human life and a natural product of the human mind. Analysis of human activities by a machine has attracted the attention of many researchers. This analysis is very important in a variety of domains including surveillance, video retrieval, human-computer interaction, athlete performance investigation, etc. This dissertation makes three major contributions to automatic analysis of human actions. First, we conjecture that the relationship between body joints of two actors in the same posture can be described by a 3D rigid transformation. This transformation simultaneously captures different poses and various sizes and proportions. As a consequence of this conjecture, we show that there exists a fundamental matrix between the imaged positions of the body joints of two actors, if they are in the same posture. Second, we propose a novel projection model for cameras moving at a constant velocity in 3D space, \emph cameras, and derive the Galilean fundamental matrix and apply it to human action recognition. Third, we propose a novel use for the invariant ratio of areas under an affine transformation and utilizing the epipolar geometry between two cameras for 2D model-based tracking of human body joints. In the first part of the thesis, we propose an approach to match human actions using semantic correspondences between human bodies. These correspondences are used to provide geometric constraints between multiple anatomical landmarks ( e.g. hands, shoulders, and feet) to match actions observed from different viewpoints and performed at different rates by actors of differing anthropometric proportions. The fact that the human body has approximate anthropometric proportion allows for innovative use of the machinery of epipolar geometry to provide constraints for analyzing actions performed by people of different anthropometric sizes, while ensuring that changes in viewpoint do not affect matching. A novel measure in terms of rank of matrix constructed only from image measurements of the locations of anatomical landmarks is proposed to ensure that similar actions are accurately recognized. Finally, we describe how dynamic time warping can be used in conjunction with the proposed measure to match actions in the presence of nonlinear time warps. We demonstrate the versatility of our algorithm in a number of challenging sequences and applications including action synchronization , odd one out, following the leader, analyzing periodicity etc. Next, we extend the conventional model of image projection to video captured by a camera moving at constant velocity. We term such moving camera Galilean camera. To that end, we derive the spacetime projection and develop the corresponding epipolar geometry between two Galilean cameras. Both perspective imaging and linear pushbroom imaging form specializations of the proposed model and we show how six different ``fundamental" matrices including the classic fundamental matrix, the Linear Pushbroom (LP) fundamental matrix, and a fundamental matrix relating Epipolar Plane Images (EPIs) are related and can be directly recovered from a Galilean fundamental matrix. We provide linear algorithms for estimating the parameters of the the mapping between videos in the case of planar scenes. For applying fundamental matrix between Galilean cameras to human action recognition, we propose a measure that has two important properties. First property makes it possible to recognize similar actions, if their execution rates are linearly related. Second property allows recognizing actions in video captured by Galilean cameras. Thus, the proposed algorithm guarantees that actions can be correctly matched despite changes in view, execution rate, anthropometric proportions of the actor, and even if the camera moves with constant velocity. Finally, we also propose a novel 2D model based approach for tracking human body parts during articulated motion. The human body is modeled as a 2D stick figure of thirteen body joints and an action is considered as a sequence of these stick figures. Given the locations of these joints in every frame of a model video and the first frame of a test video, the joint locations are automatically estimated throughout the test video using two geometric constraints. First, invariance of the ratio of areas under an affine transformation is used for initial estimation of the joint locations in the test video. Second, the epipolar geometry between the two cameras is used to refine these estimates. Using these estimated joint locations, the tracking algorithm determines the exact location of each landmark in the test video using the foreground silhouettes. The novelty of the proposed approach lies in the geometric formulation of human action models, the combination of the two geometric constraints for body joints prediction, and the handling of deviations in anthropometry of individuals, viewpoints, execution rate, and style of performing action. The proposed approach does not require extensive training and can easily adapt to a wide variety of articulated actions.
Show less
Date Issued: 2007
Identifier: CFE0001692, ucf:47199
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0001692

Title: HUMAN DEVELOPMENT AND INSTITUTIONAL DESIGN: THE COMPARATIVE PERFORMANCE OF PRESIDENTIAL REGIMES.
Creator: Hristakopoulos, Michael, Wilson, Bruce, University of Central Florida
Abstract / Description: Measures of human development, no matter their specific methodology, have always placed Costa Rica substantially higher than its neighbor, Nicaragua, but no apparent governmental, resource, or historical discrepancy can account for this gap. This thesis uses two case studies to examine this phenomenon from three different theoretical perspectives, and conclude which has the greatest explanatory power to account for the disparity between these two particular governments. Political scientists...
Show moreMeasures of human development, no matter their specific methodology, have always placed Costa Rica substantially higher than its neighbor, Nicaragua, but no apparent governmental, resource, or historical discrepancy can account for this gap. This thesis uses two case studies to examine this phenomenon from three different theoretical perspectives, and conclude which has the greatest explanatory power to account for the disparity between these two particular governments. Political scientists have noted that parliamentary systems lend themselves to better governance when compared with their presidential countersystems. Shugart and Carey (1992) cite peculiarities within some presidential models which may account for lower rates of human development. Another approach, offered by Tsebelis (2002) produces a more generalized explanation of this phenomenon, while Lawrence Harrison (1985) offers an entirely different, culture-based explanation. This thesis seeks to examine the validity of these claims, using Costa Rica and Nicaragua as case studies. Limiting the thesis to these two presidential governments will highlight the variation that exists within the presidential model, and possibly shed light on the most significant variables.
Show less
Date Issued: 2011
Identifier: CFH0003801, ucf:44777
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFH0003801

Title: TRAINING WAYFINDING: NATURAL MOVEMENT IN MIXED REALITY.
Creator: Savage, Ruthann, Gilson, Richard, University of Central Florida
Abstract / Description: The Army needs a distributed training environment that can be accessed whenever and wherever required for training and mission rehearsal. This paper describes an exploratory experiment designed to investigate the effectiveness of a prototype of such a system in training a navigation task. A wearable computer, acoustic tracking system, and see-through head mounted display (HMD) were used to wirelessly track users' head position and orientation while presenting a graphic representation of...
Show moreThe Army needs a distributed training environment that can be accessed whenever and wherever required for training and mission rehearsal. This paper describes an exploratory experiment designed to investigate the effectiveness of a prototype of such a system in training a navigation task. A wearable computer, acoustic tracking system, and see-through head mounted display (HMD) were used to wirelessly track users' head position and orientation while presenting a graphic representation of their virtual surroundings, through which the user walked using natural movement. As previous studies have shown that virtual environments can be used to train navigation, the ability to add natural movement to a type of virtual environment may enhance that training, based on the proprioceptive feedback gained by walking through the environment. Sixty participants were randomly assigned to one of three conditions: route drawing on printed floor plan, rehearsal in the actual facility, and rehearsal in a mixed reality (MR) environment. Participants, divided equally between male and female in each group, studied verbal directions of route, then performed three rehearsals of the route, with those in the map condition drawing it onto three separate printed floor plans, those in the practice condition walking through the actual facility, and participants in the MR condition walking through a three dimensional virtual environment, with landmarks, waypoints and virtual footprints. A scaling factor was used, with each step in the MR environment equal to three steps in the real environment, with the MR environment also broken into "tiles", like pages in an atlas, through which participant progressed, entering each tile in succession until they completed the entire route. Transfer of training testing that consisted of a timed traversal of the route through the actual facility showed a significant difference in route knowledge based on the total time to complete the route, and the number of errors committed while doing so, with "walkers" performing better than participants in the paper map or MR condition, although the effect was weak. Survey knowledge showed little difference among the three rehearsal conditions. Three standardized tests of spatial abilities did not correlate with route traversal time, or errors, or with 3 of the 4 orientation localization tasks. Within the MR rehearsal condition there was a clear performance improvement over the three rehearsal trials as measured by the time required to complete the route in the MR environment which was accepted as an indication that learning occurred. As measured using the Simulator Sickness Questionnaire, there were no incidents of simulator sickness in the MR environment. Rehearsal in the actual facility was the most effective training condition; however, it is often not an acceptable form of rehearsal given an inaccessible or hostile environment. Performance between participants in the other two conditions were indistinguishable, pointing toward continued experimentation that should include the combined effect of paper map rehearsal with mixed reality, especially as it is likely to be the more realistic case for mission rehearsal, since there is no indication that maps should be eliminated. To walk through the environment beforehand can enhance the Soldiers' understanding of their surroundings, as was evident through the comments from participants as they moved from MR to the actual space: "This looks like I was just here", and "There's that pole I kept having trouble with". Such comments lead one to believe that this is a tool to continue to explore and apply. While additional research on the scaling and tiling factors is likely warranted, to determine if the effect can be applied to other environments or tasks, it should be pointed out that this is not a new task for most adults who have interacted with maps, where a scaling factor of 1 to 15,000 is common in orienteering maps, and 1 to 25,000 in military maps. Rehearsal time spent in the MR condition varied widely, some of which could be blamed on an issue referred to as "avatar excursions", a system anomaly that should be addressed in future research. The proprioceptive feedback in MR was expected to positively impact performance scores. It is very likely that proprioceptive feedback is what led to the lack of simulator sickness among these participants. The design of the HMD may have aided in the minimal reported symptoms as it allowed participants some peripheral vision that provided orientation cues as to their body position and movement. Future research might include a direct comparison between this MR, and a virtual environment system through which users move by manipulating an input device such as a mouse or joystick, while physically remaining stationary. The exploration and confirmation of the training capabilities of MR as is an important step in the development and application of the system to the U.S. Army training mission. This experiment was designed to examine one potential training area in a small controlled environment, which can be used as the foundation for experimentation with more complex tasks such as wayfinding through an urban environment, and or in direct comparison to more established virtual environments to determine strengths, as well as areas for improvement, to make MR as an effective addition to the Army training mission.
Show less
Date Issued: 2006
Identifier: CFE0001288, ucf:46917
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0001288

Title: FRIEND/FOE IDENTIFICATION ACCURACY AND SHOOTING PERFORMANCE: EFFECTS OF PRIOR TASK LOADING AND TIME PRESSURE.
Creator: Burke, Kelly, Hancock, Peter, University of Central Florida
Abstract / Description: The current dismounted soldier and the soldier of the future will be loaded' with more information processing tasks while they perform shooting tasks. It is conceivable that some increased level of cognitive tasking may be performed simultaneously with required shooting tasks. The effect of cognitive load on shooting performance has been previously examined (Scribner and Harper, 2001). This study concentrated on the effect of various cognitive workload demands on a friend-foe...
Show moreThe current dismounted soldier and the soldier of the future will be loaded' with more information processing tasks while they perform shooting tasks. It is conceivable that some increased level of cognitive tasking may be performed simultaneously with required shooting tasks. The effect of cognitive load on shooting performance has been previously examined (Scribner and Harper, 2001). This study concentrated on the effect of various cognitive workload demands on a friend-foe discrimination shooting task in a single- and dual-task scenario. In light of this, it is imperative that the soldier not be overburdened mentally, which may result in decreased survivability and lethality. Specifically, this study was designed to examine the ability of the soldier to perform friend-foe target discrimination and shooting accuracy, with varying target exposure times, friendly target signatures, and varying cognitive load demands (working memory recall task). Using the Small Arms Simulator Testbed (SAST) we examined the effects of manipulations of working memory load and sustained information transfer, on shooting performance (as measured by target acquisition and friend/foe discrimination indices). Additionally, we investigated subjective measures of workload and stress. A secondary task, administered aurally, was given to subjects to attend to while they performed shooting (friend/foe discrimination task) scenarios: working memory recall task. Each type of task consisted of three levels of difficulty. Analysis of variance revealed significant differences for the memory recall task during shooting and non-shooting conditions. Furthermore, results showed that workload increased as a function of task demand, with associated decreases in shooting performance.
Show less
Date Issued: 2007
Identifier: CFE0001681, ucf:47212
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0001681

Title: APPLYING THE APPRAISAL THEORY OF EMOTIONTO HUMAN-AGENT INTERACTION.
Creator: Pepe, Aaron, Sims, Valerie, University of Central Florida
Abstract / Description: Autonomous robots are increasingly being used in everyday life; cleaning our floors, entertaining us and supplementing soldiers in the battlefield. As emotion is a key ingredient in how we interact with others, it is important that our emotional interaction with these new entities be understood. This dissertation proposes using the appraisal theory of emotion (Roseman, Scherer, Schorr, & Johnstone, 2001) to investigate how we understand and evaluate situations involving this new breed of...
Show moreAutonomous robots are increasingly being used in everyday life; cleaning our floors, entertaining us and supplementing soldiers in the battlefield. As emotion is a key ingredient in how we interact with others, it is important that our emotional interaction with these new entities be understood. This dissertation proposes using the appraisal theory of emotion (Roseman, Scherer, Schorr, & Johnstone, 2001) to investigate how we understand and evaluate situations involving this new breed of robot. This research involves two studies; in the first study an experimental method was used in which participants interacted with a live dog, a robotic dog or a non-anthropomorphic robot to attempt to accomplish a set of tasks. The appraisals of motive consistent / motive inconsistent (the task was performed correctly/incorrectly) and high / low perceived control (the teammate was well trained/not well trained) were manipulated to show the practicality of using appraisal theory as a basis for human robot interaction studies. Robot form was investigated for its influence on emotions experienced. Finally, the influence of high and low control on the experience of positive emotions caused by another was investigated. Results show that a human – robot live interaction test bed is a valid way to influence participants' appraisals. Manipulation checks of motive consistent / motive inconsistent, high / low perceived control and the proper appraisal of cause were significant. Form was shown to influence both the positive and negative emotions experienced, the more lifelike agents were rated higher in positive emotions and lower in negative emotions. The emotion gratitude was shown to be greater during conditions of low control when the entities performed correctly,suggesting that more experiments should be conducted investigating agent caused motive-conducive events. A second study was performed with participants evaluating their reaction to a hypothetical story. In this story they were interacting with either a human, robotic dog, or robot to complete a task. These three agent types and high/low perceived control were manipulated with all stories ending successfully. Results indicated that gratitude and appreciation are sensitive to the manipulation of agent type. It is suggested that, based on the results of these studies, the emotion gratitude should be added to Roseman et al. (2001) appraisal theory to describe the emotion felt during low-control, motive-consistent, other-caused events. These studies have also shown that the appraisal theory of emotion is useful in the study of human-robot and human-animal interactions.
Show less
Date Issued: 2007
Identifier: CFE0001819, ucf:47351
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0001819

human factors (14)	+ -
human-robot interaction (11)	+ -
human rights (9)	+ -
digital humanities (8)	+ -
usability (8)	+ -

human-computer interaction (6)	+ -
workload (6)	+ -
Human Trafficking (5)	+ -
human (5)	+ -
human computer interaction (5)	+ -
human trafficking (5)	+ -
simulation (5)	+ -
trust (5)	+ -
Human Factors (4)	+ -
Human Rights (4)	+ -
Human-Robot Interaction (4)	+ -
augmented reality (4)	+ -
human error (4)	+ -
human performance (4)	+ -
mixed reality (4)	+ -
stress (4)	+ -
Africa (3)	+ -
Automation (3)	+ -
HRI (3)	+ -
Human-Computer Interaction (3)	+ -
Myanmar (3)	+ -
Performance (3)	+ -
Training (3)	+ -
automation (3)	+ -
design (3)	+ -

ETD Collection (173)	+ -
Honors Collection (30)	+ -
UCF Florida Heritage (1)	+ -
PRISM: Political & Rights Issues & Social Movements (1)	+ -

12061 (1)	+ -
Florida (1)	+ -
Indian River (1)	+ -
Vero Beach (1)	+ -
Vero Beach (Fla.) (1)	+ -

book (1)	+ -
text (1)	+ -

Search In

Pages

Pages

Sort Results By:

Narrow results by:

Topical Subject

Collection

Geographic Subject

Temporal Subject

Genre

Type of Resource

Language

Creator

Format

Owner

English (205)	+ -
eng (1)	+ -

Document (PDF) (204)	+ -
E-book (1)	+ -